A Novel Adaptive Control Method to Reduce Fluctuation of VSIs Power in an Islanded Micro Grid
Publish place: 5th Electric Power Generation Conference
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
EPGC05_114
تاریخ نمایه سازی: 14 مهر 1392
Abstract:
MicroGrid is a local distribution system where loads are fed by parallel DGs. These sources controlled by controllers that sometimes have communication wires to share data and sometimes have no communication link. In this disquisition a new control tactic for parallel inverters without communication link is represented, this wireless control technique is based on the well-known droop method with some augmenting. However, the conventional voltage and frequency droop method have oscillating transient response in load sharing. Moreover, response could not modify without loss of power sharing precision or output-voltage and frequency accuracy. This method achieves the proper power balance and minimizes the Total Harmonic Distortion and losses in the system. This controller uses feedback in the output frequency of the controller. Analyses and simulation results on the simple system contain two VSI-based DGs. Results show that new controller scheme, has better load sharing behavior and make the system more stable.
Authors
A Tavakoli
Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
M. J. Sanjari
Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
M kohansal
Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
H Karami
Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
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