**Issarachai Ngamroo, PhD**

**Associate Professor **

** **

## Educations

- B.Eng (Electrical Engineering), King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand, 1992
- M.Eng (Electrical Engineering), Osaka University, Osaka, Japan, 1997
- PhD (Electrical Engineering), Osaka University, Osaka, Japan, 2000

**Work Address**

Department of Electrical Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand Tel. (02) 326-4550 Fax (02) 326-4550

**Work Experiences**

- Apr. 1997 – Mar. 2000:
**,**Department of Electrical Engineering and Superconductivity Center, Osaka University, Japan - May 2000 – Jan. 2001: Lecturer of Electrical Engineering, Sirindhorn International Institute of Technology (SIIT), Thammasat University (TU), Pathumthani, Thailand
- Feb. 2001 – Dec. 2003: Assistant Professor of Electrical Engineering, SIIT,TU
- Jan. 2004 – Oct. 2006: Associate Professor of Electrical Engineering, SIIT,TU
- Dec. 2006 – Present: Associate Professor, Department of Electrical Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand

**Research Areas**

- Power system stability, dynamic & control
- Robust control application to power system stabilization
- Wide area monitoring system based on synchronized phasor measurement units

**Professional Activities and Social Services**

- Executive Committee Member, Power Engineering Society, IEEE Thailand
- External Examiner Committee for Graduate Study, Asian Institute of Technology, Chulalongkorn University
- Editor, Ladkrabang Engineering Journal, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang
- Associate Editor, ECTI Transactions on Electrical Engineering, Electronics, and Communications, ECTI Association
- Reviewer, International Journals

- International Journals of Electric Power Systems Research
- International Journal of Electrical Power and Energy Systems

- Technical Program Committee, International Conferences

- The 2nd IEEE Conference on Industrial Electronics and Applications (ICIEA 2007), May 23-25, 2007, Harbin, China.
- The 3
^{rd}IASTED Asian Conference on Power and Energy System (AsiaPES 2007), April 2-4, 2007, Phuket, Thailand. - The 7
^{th}WSEAS International Conference on Power Systems (PE 2007), September 15 – 17, 2007, Beijing, China. - The 3
^{rd}IASME/WSEAS International Conference on - The 4
^{th}IASTED Asian Conference on Power and Energy System (AsiaPES 2008), April 2-4, 2008, Langkawi, Malaysia - The 8
^{th}IASTED International Conference on Power and Energy System (EuroPES 2008), June 23-25, 2008, Corfu, Greece. - The 9
^{th}IASTED International Conference on Power and Energy System (EuroPES 2009), September 7-9, 2009, Palma de Mallorca, Spain

**Scholarships, Research Funds and Awards**

- Japanese Governmental Scholarship (MONBUSHO), Oct. 1993 – Mar. 2000
- Post-Doctoral Research Grant no. PDF/71/2544, Research Project: “Robust discrete control design of static synchronous series compensator (SSSC) for stabilization of frequency oscillations in an interconnected power system”,
- Research Career Development Grant (TRF Research Scholar) no. RSA4780015, Research Project: “On line monitoring of wide area dynamics between central and southern regions of Thailand power system via synchronized phasor measurement units”, funded by the Thailand Research Fund, Sept. 2004 – Aug.2006
- 12
^{th}Thailand Toray Science Foundation (TTSF) Research Grant, Research Project: “Monitoring of power system dynamics between central and northern areas based on phasor measurement units via demand side outlets”, Feb. 2006 – Jan.2007 - Best paper award in Electrical Power Engineering, 29
^{th}Electrical Engineering Conference (EECON29) 9-10 November 2006, Paper: “PMU based monitoring of inter-area oscillation in Thailand power system via home power outlets” - Basic Research Grant (TRF Advanced Research Scholar) no. BRG 5080019, Project Title: “Robust stabilization of deregulated power systems considering adverse effects of renewable energy sources by controllable distributed generations”, August 2007 – July 2010, funded by the Thailand Research Fund.
- Industry Development Research Grant no. IUG 5080015, Project Title: “Development of finite element software prototype for analyzing of resonance problem in hard disk drive component”, October 2007- September 2009, funded by the Thailand Research Fund.
- AUN/SEED-Net CooperativeResearch Grant Support, Research Project Title: Design of robust power system damping controller using genetic algorithm-based fixed-structure H∞ loop shaping control, Japanese co-investigator: Professor Tadahiro Goda, Kyushu University, June 2007- March 2009, funded by the AUN/SEED-Net, JICA.
- Center of Excellence for Innovative Energy Systems, Feb 2009 – Jan 2014, funded by the KMITL Research Fund.

**List of Publications**

**A. International Journals**

- I. Ngamroo, Cuk Supriyadi A. N., S. Dechanupaprittha and Y. Mitani (2009). Power oscillation suppression by robust SMES in power system with large wind power penetration.
*Physica C: Superconductivity and Its Applications,*Volume 469, Issue 1, 1 January 2009, pp. 44-51. - S. Dechanupaprittha, N. Sakamoto, K. Hongesombut, M. Watanabe, Y. Mitani and I. Ngamroo (2009). Design and analysis of robust SMES controller for stability enhancement of interconnected power system taking coil size into consideration.
*IEEE Transactions on Applied Superconductivity*. (Accepted) - S. Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani, and I. Ngamroo, (2009). A practical design of power system damping controller for stability enhancement of interconnected power system based on synchronized phasor measurements.
*Journal of Electrical Engineering & Technology*. (Accepted) - Cuk Supriyadi A.N. and I. Ngamroo (2008). Parameters tuning of robust power system stabilizer in an interconnected power system with wind power penetrations.
*Journal of Cybernetics and Systems*, Vol.1, No.2, December 2008, pp.83-88. - I. Ngamroo, B. Somritvanitcha and K. Hongesombut (2008). Incorporating ObjectStab library and fuzzy logic toolbox for design of power system damping controller.
*Computer Applications in Engineering Education*, Vol. 16, Issue 4, pp. 243 – 255. - S. Pothiya and I. Ngamroo (2008). Optimal fuzzy logic-based PID controller for load-frequency control including superconducting magnetic energy storage units.
*Energy Conversion and Management*, Volume 49, Issue 10, October 2008, pp. 2833-2838. - S. Pothiya, I. Ngamroo and W. Kongprawechnon (2008). Application of multiple tabu search algorithm to solve the dynamic economic dispatch considering the generator constraints.
*Energy Conversion and Management*, Vol. 49, Issue 4, April 2008, pp. 506-516. - S. Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani, and I. Ngamroo, (2008) A practical design of a fuzzy SMES controller based on synchronized phasor measurement for interconnected power systemsใ
*International Journal of Emerging Electric Power Systems*, Vol. 9, Iss. 3, Article 5. - N. Voraphonpiput, I. Ngamroo and S. Chatratana (2007) Control system design for a STATCOM using complex transfer function.
*WSEAS Transactions on Power Systems,*Issue 7, Vol. 2, July 2007, pp. 155-161. - I. Ngamroo, C. Taeratanachai, S. Dechanupaprittha and Y. Mitani (2007). Enhancement of load frequency stabilization effect of superconducting magnetic energy storage by static synchronous series compensator based on
*H*_{∞}control.*Energy Conversion and Management*, Vol. 48, pp. 1302-12. - I. Ngamroo, S. Dechanupaprittha, and Y. Mitani
^{ }(2007). PMU based monitoring of inter-area oscillation in Thailand power system via home power outlets.*ECTI Transactions on Electrical Engineering, Electronics, and Communications*,*Special section on paper selected from EECON29*, Vol. 5, No. 2, pp. 199-204. - S. Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani and I. Ngamroo (2007). Stabilization of tie-line power flow by robust SMES controller for interconnected power system with wind farms.
*IEEE Transactions on Applied Superconductivity*, Vol. 17, Issue 2, Part 2, June 2007, pp. 2365-2368. - I. Ngamroo, J. Tippayachai and S. Dechanupaprittha (2006). Robust decentralised frequency stabilisers design of static synchronous series compensators by taking system uncertainties into consideration.
*International Journal of Electrical Power and Energy Systems*. Vol. 28, pp. 513-524. - I. Ngamroo (2006). Dynamic compensation observer-based sliding mode stabilizer design for wind turbine generator.
*WSEAS Transactions on Systems.*Issue 12, Vol. 5, pp. 2751-2758. - S. Pothiya, I. Ngamroo, S. Runggeratigul and P. Tantasawas (2006). Design of optimal fuzzy logic based PI controller using multiple tabu search algorithm for load frequency control.
*International Journal of Control, Automation, and Systems, Special Issue on Intelligent Control.*Vol. 4, pp.155-164. - C. Taeratanachai and I. Ngamroo (2006) Robust frequency stabilization of isolated wind diesel hybrid power systems using
*H*_{∞}control.*WSEAS Transactions on Power Systems.*Issue 6, Vol. 1, pp.1014-1021. - B. Somritvanitcha, I. Ngamroo and K. Hongesombut (2006). An incorporated use of fuzzy logic toolbox and modelica library to design SSSC damping controller.
*ECTI Transactions on Computer and Information Technology, Special Section on Papers Selected from ECTI-CON 2006.* - S. Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani and I. Ngamroo (2006). A heuristic-based design of robust SMES controller taking system uncertainties into consideration.
*IEEJ Transactions on Electrical and Electronic Engineering,*Vol. 1, Issue 3, pp. 255-267. - S. Dechanupaprittha, Komsan Hongesombut, Y. Mitani and I. Ngamroo (2006). Frequency stabilization of interconnected power system with wind farms by controllable distributed generator.
*Journal of The Institution of Engineers, Singapore, Special Issue IPEC2005.*No. 8. - I. Ngamroo (2005). Robust decentralized frequency stabilizers design for SMES taking into consideration system uncertainties.
*Electric Power Systems Research*. Vol. 74, No. 2, pp. 281-292. - I. Ngamroo (2005). Robust frequency stabilisation by coordinated SMES with SSSC.
*International Journal of Emerging Electric Power Systems**.*Vol. 3, No. 1, Article 1031. - I. Ngamroo (2005). An optimization technique of robust load frequency stabilizers for SMES.
*Energy Conversion and Management*. Vol. 46, pp.3060-3090. - I. Ngamroo and S. Dechanupaprittha (2005). Robust decentralized design of power system stabilizers considering system uncertainties.
*Optimal Control Applications and Methods*, Vol. 26, pp. 35-53. - C. Vorakulpipat, M. Leelajindakrirerk and I. Ngamroo (2005). Robust decentralized design of
*H*_{¥}-based frequency stabilizer of SMES.*International Energy Journal*, Vol. 6, No. 1, pp. 59-70. - W. Ongsakul, S. Dechanupaprittha and I. Ngamroo (2004). Constrained economic dispatch by deterministic tabu search approach.
*European Transactions on Electrical Power,*Vol. 14, pp. 377-391. - W. Ongsakul, S. Dechanupaprittha and I. Ngamroo (2004). Parallel tabu search for constrained economic dispatch.
*IEE Proceedings, Generation, Transmission and Distribution,*Vol. 151,pp.157-166. - I. Ngamroo and W. Kongprawechnon (2003). A robust controller design of SSSC for stabilization of frequency oscillations.
*Electric Power Systems Research,*Vol. 67, No. 3, pp. 161-176. - I. Ngamroo (2002). A stabilization of frequency oscillation in a parallel AC-DC interconnected power system via an HVDC link.
*ScienceAsia,*Vol. 28, No. 2, pp. 173-180. - J. Tippayachai, W. Ongsakul and I. Ngamroo (2002). Parallel micro genetic algorithm for constrained economic dispatch.
*IEEE Transactions on Power Systems*, Vol. 17, No. 3, pp. 790 -797. - I. Ngamroo, Y. Mitani and K. Tsuji (2000). Application of solid-state phase shifter to stabilization of system frequency in power system.
*Electrical Engineering in Japan*, Vol. 132, pp.19-29. - I. Ngamroo, Y. Mitani and K. Tsuji (1999). Application of SMES coordinated with solid-state phase shifter to LFC.
*IEEE Transactions on Applied Superconductivity*, Vol. 9, pp. 322-325. - I. Ngamroo, Y. Mitani and K. Tsuji (1999). Robust frequency stabilization controller design of solid-state phase shifter using
*H*_{¥}control via normalized coprime factorization approach.*IEEJ Transactions on Power and Energy*, Vol.119-B, No.12, pp.1437-1445. - I. Ngamroo, Y. Mitani and K. Tsuji (1999). Application of solid-state phase shifter to stabilization of system frequency power system.
*IEEJ Transactions on Power and Energy*, Vol.119-B, pp.901- 908.

**B. ****International Conferences**

- C. S. Ali Nandar, I. Ngamroo, S. Kaitwanidvilai, A. Kunakorn, T. Hashiguchi and T. Goda (2008). Design of robust power system stabilizer using genetic algorithm-based fixed- structure H
_{∞}loop shaping control.*Proceedings of The 17*^{th}World Congress of International Federation of Automatic*Control (IFAC2008)*, 6-11 July 2008, Seoul, Korea, Paper ThA1.55, pp.11086-11091. - C. S. Ali Nandar, I. Ngamroo, S. Kaitwanidvilai, A. Kunakorn, T. Hashiguchi and T. Goda (2008). Robust pitch controller design in hybrid wind-diesel power generation system. Proceedings of The 3
^{rd}International Conference on Industrial Electronics and Applications*(ICIEA2008),*3-5 June 2008, Singapore, Paper Conf130a461, pp. 1054-1059. - C. S. Ali Nandar, I. Ngamroo, A. Kunakorn, S. Dechanupaprittha, M.Watanabe, Y. Mitani, T. Hashiguchi and T. Goda (2008). Inverse additive perturbation-based optimization of robust PSS in an interconnected power system with wind farms.
*Proceedings of SICE Annual*Conference 2008, International Conference on Instrumentation, Control and Information - C. S. Ali Nandar, I. Ngamroo, S. Kaitwanidvilai, A. Kunakorn, T. Hashiguchi and T. Goda (2008). H∞ loop shaping-based robust control design of PSS and TCSC for dynamic stability enhancement. Proceedings of The 2008 Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference, (ECTI-CON
*2008)*, 14-17 May 2008, Krabi, Thailand, Vol. 2, pp.965-968. - S. Vachirasricirikul, I. Ngamroo and S. Kaitwanidvilai (2008). Design of robust SVC for voltage control in an isolated wind-diesel hybrid power system.
*Proceedings of The 2008*Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference, (ECTI-CON 2008), 14-17 May 2008, Krabi, Thailand, - S. Dechanupaprittha, N. Sakamoto, K. Hongesombut, M. Watanabe, Y. Mitani and I.Ngamroo (2008). Design and analysis of robust SMES controller for stability enhancement of interconnected power system taking coil size into consideration.
*Proceedings of Applied Superconductivity Conference 2008 (ASC 2008)*, 17-22 August 2008, Chicago, USA, Paper No. 3LPE04. - S. Dechanupaprittha, C. Li, M. Watanabe, Y. Mitani, K. Hongesombut and I. Ngamroo (2008). A practical approach to tuning of SMES controller based on synchronized phasor measurements for interconnected power systems with wind farms.
*Proceedings of International Conference on Sustainable Energy Technologies (ICSET 2008),*24-27 - C.S. Ali Nandar, I. Ngamroo, S. Dechanupaprittha, M. Watanabe, Y. Mitani (2008). Wide area robust power system stabilizer design based on synchronized phasor measurement units.
*Proceedings of IEEJ-IET Joint Symposium on Advanced Technology in Power Systems*, 4-5 November 2008, Bangkok, Thailand, pp.1-6. - C. S. Ali Nandar, I. Ngamroo, S. Dechanupaprittha, M. Watanabe, Y. Mitani (2008). Suppression of tie-line power oscillation using robust SMES controller in interconnected power systems with wind farms.
*Proceedings of IEEJ-IET Joint Symposium on Advanced Technology in Power Systems*, 4-5 November 2008, Bangkok, Thailand, pp.7-12. - Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani, I. Ngamroo (2008). Metaheuristic-based robust controller design of distributed energy resources for stabilization of interconnected power system based on synchronized phasor measurements.
*Proceedings of IEEJ-IET Joint Symposium on Advanced Technology in Power Systems*, 4-5 November 2008, Bangkok, Thailand, pp.25-31. - A. Sanethon, S. Kanprachar, S. Kaitwanidvilai, A. Kunakorn and I. Ngamroo (2008). A new edge detection technique for an automatic visual inspection system using genetic algorithms.
*Proceedings of 2008 IEEE International Conference on Robotics and Biomimetics (IEEE ROBIO 2008)*14-17 December 2008, Bangkok, Thailand. (Accepted for presentation) - I. Ngamroo , P. Lappanakul, N. Voraphonpiput, S. Dechanupaprittha, Y. Mitani and J. Sakulrat (2007). Dynamic event analysis using synchronized PMUs via 220 V wall outlets.
*Proceedings of The 8*, 3-6 December 2007, pp. 1177-1182, Singapore.^{th}International Power Engineering Conference (IPEC2007) - S. Pothiaya, I. Ngamroo, W. Kongprawechnon (2007). Design of optimal fuzzy logic-based PID controller using multiple tabu search algorithm for AGC including SMES units.
*Proceedings of The 8*, 3-6 December 2007, pp. 1183-1188 Singapore.^{th}International Power Engineering Conference (IPEC2007) - S. Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani and I. Ngamroo (2007). “A practical design of fuzzy SMES controller based on synchronized phasor measurement for interconnected power system.
*Proceedings of The 8*, 3-6 December 2007, pp. 113-118, Singapore.^{th}International Power Engineering Conference (IPEC2007) - C. S. Ali Nandar, I. Ngamroo, S. Kaitwanidvilai, A. Kunakorn, T. Hashiguchi and T. Goda (2007). Robust power system stabilizer design based on genetic algorithm-fixed-structure H∞ loop shaping control.
*Proceedings of IEEJ-IET Joint Symposium on Advanced Technology in Power Systems*, 19-20 November 2007, Bangkok, Thailand, pp.7-12. - S. Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani and I. Ngamroo (2007). Coordinated design of power system damping controllers for stability enhancement of multi-area power system based on wide-area synchronized phasor measurements.
*Proceedings of IEEJ-IET Joint Symposium on Advanced Technology in Power Systems*, 19-20 November 2007, Bangkok, Thailand, pp.19-24. - M. Luengcharuthon, I. Ngamroo, S. Dechanupaprittha, M. Watanabe and Y. Mitani (2007). Synchronized phasor measurement units based-wide area monitoring system in Thailand power network via 220 V wall outlets.
*Proceedings of IEEJ-IET Joint Symposium on Advanced Technology in Power Systems*, 19-20 November 2007, Bangkok, Thailand, pp.25-30. - M. Watanabe, K. Higuma, Y. Mitani and I. Ngamroo (2007). Analyses of power system dynamics in Southeast Asia power network based on multiple synchronized phasor measurements.
*Proceedings of IEEJ-IET Joint Symposium on Advanced Technology in Power Systems*, 19-20 November 2007, Bangkok, Thailand, pp.37-42. - M. Hojo, Y. Mitani, H. Ukai, O. Saeki and I. Ngamroo (2007). A study on behaviors of phase differences and frequency deviations in Thailand power system by wide area phasor measurement system.
*Proceedings of IEEJ-IET Joint Symposium on Advanced Technology in Power Systems*, 19-20 November 2007, Bangkok, Thailand, pp.43-46. - I. Ngamroo, A. Kunakorn, M. Leelajindakrirerk, Y. Mitani, S. Dechanupapritta, M. Watanabe, T. Hashiguchi, Y. Ota, H. Ukai, J. Sakulrat, A. Sode-Yome, T. Tanasaksiri (2007). Analysis of power system event using synchronized PMUs in Thailand power network.
*Proceedings of 3*, 2-4 April, 2007, Phuket, Thailand, Paper No. 560-817.^{rd}IASTED Asian Conference on Power and Energy Systems (AsiaPES 2007), special session on application of phasor measurement unit to monitoring wide area power system dynamics - K. Higuma, S. Dechanupaprittha, H. Morimoto, M. Watanabe, Y. Mitani and I. Ngamroo (2007). Test results of evaluating eigen-characteristics of interarea power swing mode derived from PMU data in Thailand system.
*Proceedings of 3*, 2-4 April, 2007, Phuket, Thailand, Paper No. 560-816.^{rd}IASTED Asian Conference on Power and Energy Systems (AsiaPES 2007), special session on application of phasor measurement unit to monitoring wide area power system dynamics - S. Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani and I. Ngamroo (2007). Practical design of SMES controller for improving power system stability based on wide area synchronized phasor measurement.
*Proceedings of 3*, 2-4 April, 2007, Phuket, Thailand, Paper No. 560-819.^{rd}IASTED Asian Conference on Power and Energy Systems (AsiaPES 2007), special session on application of phasor measurement unit to monitoring wide area power system dynamics - N. Voraphonpiput, I. Ngamroo and S. Chatratana (2007). Control system design for a STATCOM using complex transfer function.
*Proceedings of the 7*15-17 April 2007, Hangzhou, China, Paper No. 560-225.^{th}WSEAS International Conference on Instrumentation, Measurement, Circuits and Systems (IMCAS ’07), - S. Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani, and I. Ngamroo (2007). Design of SMES controller for improving stabilization of interconnected power system based on synchronized phasor measurement.
*Proceedings of IEEE Lausanne Power Tech 2007 Conference (Power Tech 2007), 1-5 July 2007*, Lausanne, Switzerland, Paper No. 471. - K. Higuma, S. Dechanupaprittha, M. Watanabe, Y. Mitani, I. Ngamroo (2007). Analysis of power system stability derived from PMU data using demand side outlets in Thailand power system.
*Proceedings of The International Conference on Electrical Engineering 2007 (ICEE 2007),*8-12 July 2007, Hong Kong, Paper ICEE-278. - I. Ngamroo, Y. Mitani, S. Dechanupaprittha, K. Hongesombut, P. Jintakosonwit, Y. Ota, H. Ukai, J. Sakulrat, A. Sode-yome, M. Watanabe (2006). Detection of power system oscillations using synchronized phasor measurement units through home power outlets.
*Proceedings of the 7*, 31 October – 2 November 2006, Hong Kong, Paper No. 326.^{th}IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2006) - S. Dechanupaprittha, Y. Mitani, M. Watanabe, K. Hongesombut, I. Ngamroo (2006). A heuristic-based design of fuzzy SMES controller for stabilization of interconnected power system.
*Proceedings of the 7*, 31 October – 2 November 2006, Hong Kong, Paper No. 325.^{th}IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2006) - I. Ngamroo (2006). Design of sliding mode stabilizer for wind turbine generator using dynamic compensation observer technique.
*Proceedings of the 6*, 22-24 September 2006, Lisbon, Portugal, Paper No. 517-336.^{th}WSEAS International Conference on - S. Dechanupaprittha, M. Watanabe, Y. Mitani, K. Hongesombut and I. Ngamroo (2006). Stabilization of tie-line power flow by robust SMES controller for interconnected power system with wind farms.
*Proceedings of Applied Superconductivity Conference 2006 (ASC’2006)*, 27 August – 1 September 2006, Seattle, USA, Paper No. 5LC07. - C. Taeratanachai and I. Ngamroo (2006). H
_{∞}based robust frequency stabilization of isolated wind diesel hybrid power systems. Proceedings of 2006 IASME/WSEAS International Conference on - T. Sansawatt and I. Ngamroo (2006). Sliding mode control design of TCSC for robust power system stabilization using dynamic compensation observer technique. Proceedings of The 41
^{st}International Universities Power Engineering Conference (UPEC 2006), 6-8 September 2006, Newcastle, UK, Vol.2, pp. 447-451. - B. Somritvanitcha, I. Ngamroo and K. Hongesombut (2006). An incorporated use of fuzzy logic toolbox and modelica library to design of SSSC damping controller.
*Proceedings of The 2006 Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference, (ECTI-CON 2006),*10-13 May 2006, Ubon Ratchathani, Thailand, Vol. II, pp 745-748. - C. Taeratanachai and I. Ngamroo (2006). H
_{∞}based robust frequency stabilization of isolated wind-diesel hybrid power systems. Proceedings of The 2006 Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference, (ECTI-CON 2006), 10-13 May 2006, Ubon Ratchathani, Thailand, Vol. I, pp 271-274. - T. Sansawatt and I. Ngamroo (2006). Sliding mode control design of TCSC for enhancement of power system dynamic stability. Proceedings of The 2006 Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference, (ECTI-CON 2006), 10-13 May 2006, Ubon Ratchathani, Thailand, Vol. I, pp 267-270.
- I. Ngamroo and W. Kongprawechnon (2005). Design of robust frequency stabilizers of superconducting magnetic energy storages. Proceedings of The 5
^{th}International Conference on Information, Communications and Signal Processing (ICICS2005), Special Session in Robust Control and Optimal Control, 6 -9 December 2005, Bangkok, Thailand, pp.464-468. - I. Ngamroo, S. Dechanupaprittha, K. Hongesombut, Y. Mitani and A. Kunakorn (2005). Design of robust load-frequency stabilizers of SMES in coordination with SSSC. Proceedings of The 7
^{th}International Power Engineering Conference (IPEC2005), 29 November – 2 December 2005, Singapore, Paper FN-2.1. - S. Dechanupaprittha, K. Hongesombut, Y. Mitani and I. Ngamroo (2005). Frequency stabilization of interconnected power system with wind farms by controllable distributed generator.
*Proceedings of The 7*, 29 November – 2 December 2005, Singapore, Paper TA-4.5.^{th}International Power Engineering Conference (IPEC2005) - V. Sidejchayabhon and I. Ngamroo (2005). A fuzzy PI-based frequency controller design of SMES.Proceedings of The 2005 Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference, (ECTI-CON 2005), 12-13 May 2005, Pattaya, Thailand, Vol.1, pp. 40-43.
- S. Dechanupaprittha, I. Ngamroo and Y. Mitani (2005). Decentralized design of robust power system stabilizers considering system uncertainties. Proceedings of IEEE St. Petersburg Power Tech Conference 2005 (PowerTech 2005), 27-30 June 2005, St. Petersburg, Russia, Paper No. 396.
- S. Dechanupaprittha, Y. Mitani and I. Ngamroo (2005). Coordinated design of robust PSS and SVC damping controllers in a multimachine power system.
*Proceedings of The IASTED International Conference on Energy and Power Systems (EPS 2005)*, 18-20 April 2005, Krabi, Thailand, pp. 323-328. - A. Ngaopitakkul, A. Kunakorn and I. Ngamroo (2005). Discrimination between external short circuits and internal faults in transformer windings using discrete wavelet transforms.
*Proceedings of IEEE Industry Applications Society 40th Annual General Meeting (IEEE IAS 2005)*, 2-6 October 2005, Hong Kong, Vol. 1, pp. 448-452. - S. Dechanupaprittha, K. Hongesombut, M. Watanabe, Y. Mitani and I. Ngamroo (2005). Design of robust SMES controller in a multimachine power system by using hybrid TS/EP.
*Proceedings of The 15*22-26 August 2005, Liege, Belgium.^{th}Power Systems Computation Conference, (PSCC ’05), - K. Hongesombut, S. Dechanupaprittha, Y. Mitani and I. Ngamroo (2005). Robust power system stabilizer tuning based on multiobjective design using hierarchical and parallel micro genetic algorithm.
*Proceedings of The 15*22-26 August 2005, Liege, Belgium.^{th}Power Systems Computation Conference, (PSCC ’05), - S. Dechanupaprittha, I. Ngamroo, K. Pasupa, J. Tippayachai, K. Hongesombut and Y. Mitani (2004). New heuristic-based design of robust power system stabilizers.
*Proceedings of 2004 International Conference on Power System Technology (POWERCON 2004)*, 21-24 November 2004, Singapore, Vol.1, pp.618-623. - K. Hongesombut, Y. Mitani, S. Dechanupaprittha, I. Ngamroo, K. Pasupa and J. Tippayachai (2004). Power system stabilizer tuning based on multiobjective design using hierarchical and parallel micro genetic algorithm.
*Proceedings of 2004 International Conference on Power System Technology (POWERCON 2004)*, 21-24 November 2004, Singapore, Vol.1, pp. 402-407 - C. Vorakulpipat, M. Leelajindakrirerk and I. Ngamroo (2004). Robust decentralized design of H
_{∞}based frequency stabilizer of SMES.*Proceedings of International Conference on Electric Supply Industry in Transition: Prospects and Issues for Asia*, 14-16 January 2004, AIT, Thailand, Vol. 1, pp. 44-56. - J. Tippayachai, W. Ongsakul and I. Ngamroo (2003). Non-convex economic dispatch by enhanced tabu search algorithm.
*Proceedings of 2003 IEEE Power Engineering Society General Meeting*, 13-17 July 2003, Toronto, Canada, paper no. 510. - S. Dechanupaprittha, A. Patanapakdee and I. Ngamroo (2003). An HVDC-based controller design for stabilization of frequency oscillation.
*Proceedings of 2003 IEEE International Symposium on Circuits and Systems (ISCAS2003)*, 25-28 May 2003, Bangkok, Thailand, Vol. 3, pp. 379-382. - S. Dechanupaprittha and I. Ngamroo (2002). Design of robust power system stabilizers in a multimachine power system using tabu search algorithm.
*Proceedings of The 2002 IEEE International Conference on Industrial Technology, (ICIT’02)*, 11-14 December 2002, Bangkok, Thailand, Vol. 1, pp.291-296. - S. Dechanupaprittha and I. Ngamroo (2002). A tabu search algorithm to optimal weight selection in design of robust H
_{∞}power system stabilizer.*Proceedings of The 2002 International Technical Conference on Circuits/Systems, Computers and Communications, (ITC-CSCC 2002)*, 16-19 July 2002, Phuket, Thailand, Vol. 1, pp.486-489. - I. Ngamroo (2002). A stabilization frequency oscillations using a power modulation of control of HVDC link in a parallel AC-DC interconnected system.
*Proceedings of The Power Conversion Conference Osaka 2002, (PCC Osaka 2002)*, 2-5 April 2002, Osaka, Japan, Vol.3, pp. 1405-1410. - I. Ngamroo (2001). Application of static synchronous series compensator to stabilization of frequency oscillations in an interconnected power system.
*Proceedings of 2001 IEEE International Symposium on Circuits and Systems (ISCAS 2001)*, 6-9 May 2001, Sydney, Australia, Vol. 2, pp. 113-116. - I. Ngamroo (2001). Design of robust H
_{∞}PSS via normalized coprime factorization approach.*Proceedings of 2001 IEEE International Symposium on Circuits and Systems (ISCAS 2001),*6-9 May 2001, Sydney, Australia, Vol. 2, pp. 129-132. - W. Ongsakul, S. Dechanupaprittha and I. Ngamroo (2001). Tabu search algorithm for constrained economic dispatch.
*Proceedings of 2001 International Conference on Power Systems, (ICPS 2001),*3-5 September 2001, Wuhan, China, pp. 428-433. - I. Ngamroo, Y. Mitani and K. Tsuji (2000). H
_{∞}control via normalized coprime factorization approach for robust frequency stabilization controller design of solid-state phase shifter.*Proceedings of IFAC/CIGRE Symposium on Power Plants & Power System Control 2000*, 26-29 April 2000, Brussels, Belgium, pp. 241-246. - I. Ngamroo, Y. Mitani and K. Tsuji (1999). Application of phase shifter to load frequency control and economic load dispatch in loop interconnected power systems. Proceedings
*of The 13*28 June – 2 July 1999, Trondheim, Norway, Vol. 2, pp. 1171-1177.^{th}Power Systems Computation Conference, (PSCC ’99), - I. Ngamroo, Y. Mitani and K. Tsuji (1999). Application of overlapping decompositions to control design of solid-state phase shifter for LFC.
*Proceedings of The 14*, 5-9 July 1999, Beijing, China, Vol. O, IFAC-7c-05-03, pp. 219-224.^{th}World Congress of International Federation of Automatic Control, (IFAC ’99) - I. Ngamroo, Y. Mitani and K. Tsuji (1999). Robust control design of solid-state phase shifter for LFC using H
_{∞}control via normalized coprime factorization approach.*Proceedings of The 34*,14-16 September 1999, Lieciester, UK, Vol. 1, pp. 70-73.^{th}University Power Engineering Conference 1999, (UPEC’99) - I. Ngamroo, Y. Mitani and K. Tsuji (1999). Robust load frequency control by solid-state phase shifter based on H
_{∞}control design.*Proceedings of IEEE PES Winter Meeting 1999*, 31 January – 4 February 1999, New York, USA, Vol. 1, pp. 725-730. - I. Ngamroo, Y. Mitani and K. Tsuji (1998). LFC & stabilization of multi-area interconnected power system by decentralized control of SMES and solid-state phase shifters.
*Proceedings of International Conference on Energy Management and Power Delivery 1998, (EMPD ’98)*, 3-5 March 1998, Singapore, Vol. 1, pp. 85-90. - I. Ngamroo, Y. Mitani and K. Tsuji (1998). Coordinated SMES with solid-state phase shifter to load frequency control.
*Proceedings of Applied Superconductivity Conference 1998 (ASC ’98),*13-18 September 1998, Desert Springs Resort, Palm Desert, California, USA, Abstract No. LDB-04. - I. Ngamroo, Y. Mitani and K. Tsuji (1997). Application of super-superconducting magnetic energy storage (SuperSMES) for load frequency control.
*Proceedings of International Conference on Electrical Engineering 1997, (ICEE ’97)*, 29 July – 1 August 1997, Matsue, Japan, pp. 46-49. - D. Kamolyabutra, I. Ngamroo, Y. Mitani and K. Tsuji (1997). Power system stabilizing control scheme for the SMES and solid-state phase shifter (SuperSMES).
*Proceedings of The IASTED International Conference on High Technology in the Power Industry*, 27-30 October 1997, Orlando, Florida, USA, pp. 163-168.

**C. ****Book Chapters**** **** **

- S. Kaitwanidvilai, A. Jangwanitlert, I. Ngamroo, W. Khanngern, S. Karnprachar (2009). Fixed structure robust loop shaping controller for a buck-boost converter using evolutionary algorithm. Trends in Communication Technologies and Engineering Science, Series: Lecture Notes in Electrical Engineering (LNEE), Springer. (To be published)
- I. Ngamroo (2008). Robust load-frequency stabilization by superconducting magnetic energy storage and static synchronous series compensator. Energy Conversion: New Research, Edited by Wenzhong Lín, ISBN: 978-1-60456-263-7, Nova Science Publisher Inc., USA.
- I. Ngamroo and Y. Mitani (2008). Wide-area monitoring of power system oscillations in Thailand power network using synchronized phasor measurement units via demand side outlets. Electric Power System Research Trends, Edited by Michael C. Schmidt, ISBN: 1-60021-978-0, pp.269-294, Nova Science Publisher Inc., USA.

**D. ****Research Reports**

- Research Project: Robust discrete control design of static synchronous series compensator (SSSC) for stabilization of frequency oscillations in an interconnected power system, Jul. 2001 – Jun. 2003, Post-Doctoral Research Grant no. PDF/71/2544 funded by The Thailand Research Fund.
- Research Project: On line monitoring of wide area dynamics between central and southern regions of Thailand power system via synchronized phasor measurement units, Sept. 2004 – Aug. 2006 Research Career Development Grant (TRF Research Scholar) no. RSA4780015 funded by the Thailand Research Fund.
- Research Project Monitoring of power system dynamics between central and northern areas based on phasor measurement units via demand side outlets, Feb. 2006 – Jan.2007, 12
^{th}Thailand Toray Science Foundation (TTSF) Research Grant.