Distribution Voltage Regulation Under Three- Phase Fault by Using D-STATCOM

Authors: Chaiyut Sumpavakup, Thanatchai Kulworawanichpong

Abstract:

This paper presents the voltage regulation scheme of D-STATCOM under three-phase faults. It consists of the voltage detection and voltage regulation schemes in the 0dq reference. The proposed control strategy uses the proportional controller in which the proportional gain, kp, is appropriately adjusted by using genetic algorithms. To verify its use, a simplified 4-bus test system is situated by assuming a three-phase fault at bus 4. As a result, the DSTATCOM can resume the load voltage to the desired level within 1.8 ms. This confirms that the proposed voltage regulation scheme performs well under three-phase fault events.

Keywords: D-STATCOM, proportional controller, genetic algorithms.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1335446

References:

[1] S.M. Woo, D.W. Kang, W.C. Lee, and D.S. Hyum, "The Distribution STATCOM for Reducing the Effect of Voltage Sag and Swell", IECON-01, vol. 2, pp. 1132-1137, 2001.
[2] S.Y. Park and J.K. Park, "The Modeling and Analysis of Shunt type Custom Power Device", IEEE Power Engineering Society Winter Meeting, vol. 1, pp. 186 - 191, 2001.
[3] H.K. Chiang, B.R. Lin, K.T. Yang, and C.C. Yang, "Analysis and Implementation of a NPC-Based DSTATCOM under the Abnormal Voltage Condition", Industrial Technology 2005, International Conference on, pp. 665 - 670, December 2005.
[4] H. Saadat, Power system analysis, McGraw-Hill, Singapore, 2004.
[5] G.F. Franklin, J. D. Powell, and M. Workman, Digital control of dynamic systems, Wesley, 1998.
[6] D. E. Goldberg, and D. Edward, Genetic Algorithms in Search, Optimization and Machine Learning, Wiley, 1989.
[7] T. Charuwat and T. Kulworawanichpong, "Genetic based distribution service restoration with minimum average energy not supplied", The 8th International Conference on Adaptive and Natural Computing Algorithms (ICANNGA2007), pp. 230-239, April 2007.
[8] M. Rashidi, F. Rashidi and H. Monavar, "Tuning of power system stabilizers via genetic algorithm for stabilization of power system", IEEE Int. Conf. Systems, Man and Cybernetics, vol. 5, pp. 4649 - 4654, October 2003.
[9] The MathWorks Inc., MATLAB® The language of technical computing, CD-ROM Manual, 2004.
[10] The MathWorks Inc., Genetic Algorithms and Direct Search TOOLBOX, CD-ROM Manual, 2004.