Harmonic Current Detection and Reactive Power Compensation Method for Photovoltaic System Based on FBD Method
2019 IEEE 3rd Conference on Energy Internet and Energy System Integration (EI2)(2019)
摘要
In order to improve the equipment utilization of distributed photovoltaic power generation system, the harmonic and reactive currents generated by grid-connected photovoltaic system can be accurately detected and compensated. A phase-locked loop based on second-order generalized integrator (SOGI-PLL) is introduced into the traditional FBD current detection method to separate the positive and negative sequence components of unbalanced voltage and detect the phase and frequency of reference voltage more accurately. The simulation results show that the algorithm can reduce the computational complexity and increase the detection accuracy and steady-state performance.
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