Adaptive PI control of Electric Springs For Voltage Regulation Under Dynamic Load Changes
K.K. Deepika1, J. Vijaya Kumar2, G. Kesava Rao3, Seelam Chaitanya4

1K.K. Deepika, Assistant Professor, Vignan’s Institute of Information Technology, Visakhapatnam, Andhra Pradesh & Research Scholar, KLEF, Vijayawada, Andhra Pradesh, India.
2J.Vijaya Kumar, Assoc. Professor, Dept. of EEE, ANITS, Visakhapatnam, Andhra Pradesh, India.
3Dr. G. Kesava Rao, Professor, Dept. of EEE, KLEF, Vaddeswaram, Andhra Pradesh, India.
4S.Chaitanya, PG student, Vignan’s Institute of Information Technology, Visakhapatnam, Andhra Pradesh, India.

Manuscript received on 02 July 2019 | Revised Manuscript received on 07 July 2019 | Manuscript published on 30 August 2019 | PP: 1051-1056 | Volume-8 Issue-10, August 2019 | Retrieval Number: J92100881019/2019©BEIESP | DOI: 10.35940/ijitee.J9210.0881019
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Abstract: Due to continuous distributed generation development technology, the accessibility of wind, solar and also the renewable energy sources tends to intensify. To suppress the voltage fluctuation caused by the distributed generation electric springs had been developed. In this article an adaptive control of Electric spring is proposed, in which the gains of the PI controller are optimised by TLBO to maintain constant voltage across critical load. The proposed strategy is tested for dynamic changes in the non-critical load. Simulation results show that, for voltage fluctuations caused by the DGs and also with the dynamic load changes, ES with adaptive controller stabilize the bus voltage effectively, over ES with Fuzzy Logic Control and traditional PI control.
Keywords: Electric Spring, TLBO, Tuning of PI controller.
Scope of the Article: Fuzzy Logics