电网电压不平衡下三相光伏发电系统的谐波电流抑制

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Abstract The ride-through operation of photovoltaic(PV) generation under unbalanced grid voltage will produce apparent harmonic currents. This paper studied on power control of PV under unbalanced voltage, and analyzed the total harmonic distortion and the component of each harmonic of the inverter currents. Then the analytic formulas of power fluctuation, current total harmonic distortion and each current harmonic of the PV inverter were derived, and two algorithms of the adjustment coefficients of PV power control were proposed. The control strategy model of current harmonic suppression under unbalanced grid voltage was built. The feasibility of this method was verified by the simulation results produced by PSCAD/EMTDC.

Key words： Photovoltaic unbalanced grid voltage harmonic suppression odd harmonic power fluctuation

Received: 01 August 2013 Published: 14 September 2015

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TM615

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	Zhou Niancheng
	Lou Xiaoxuan
	Wang Qianggang
	Wang Jiajia

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Zhou Niancheng,Lou Xiaoxuan,Wang Qianggang等. Harmonic Currents Suppression for Three-Phase Photovoltaic Power Generation System Under Unbalanced Grid Voltage Conditions[J]. Transactions of China Electrotechnical Society, 2015, 30(16): 245-253.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I16/245

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