Load Current Observer and Adaptive Voltage Controller for Standalone Wind Energy System with Linear and Non-linear Loads
Liyana Kharulaman1, Abdul Aabid2, Fharukh Ahmed Ghasi Mehaboobali3, Sher Afghan Khan4
1D. Rajababu, EEE Department, S R Engineering College, Warangal, India.
2Dr. K. Raghu Ram, EEE Department, Laqshya Institute of Technology and Sciences, Khammam, India.
Manuscript received on September 23, 2019. | Revised Manuscript received on October 15, 2019. | Manuscript published on October 30, 2019. | PP: 5491-5496 | Volume-9 Issue-1, October 2019 | Retrieval Number: A2012109119/2019©BEIESP | DOI: 10.35940/ijeat.A2012.109119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The Wind Energy Conversion System (WECS) is one of the most important renewable energy systems in the existing power network, which can be operated in either grid connected or standalone mode. In the standalone WECS, voltage and frequency variations are more due to the wind speed variations, load changes and switching surges. In this paper, space vector pulse width modulation based adaptive voltage controller with load current observer is used to control the voltage and frequency, for the standalone or isolated WECS. The isolated system is simulated using MATLAB/Simulink and the results are analysed when three-phase non-linear and linear (Resistive and Inductive) balanced and unbalanced loads are connected.
Keywords: Isolated Wind Energy conversion system, Space Vector Pulse Width Modulation, Adaptive Voltage Controller, Load Current Observer, Total Harmonic Distortion.