基于阻性下垂的逆变器无线并联均流控制

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Abstract This paper proposes an improved load sharing controller for parallel connected inverters. The voltage and current dual-loop proportional control method is designed to implement resistive output impedance, and the Q-ω and P-V droop method is adopted. An adaptive virtual resistor is added to regulate the magnitude of the output impedance according to the requirements of active power sharing, which weakens the coupling between the current sharing control and output voltage amplitudes of paralleled inverters. The feedforward of the reference voltage is employed to increase the gain of the system, and the RMS (root-mean-square) loop is adopted to maintain small steady-state error of output voltage. Experimental results demonstrate the validity of the proposed scheme.

Key words： Inverter parallel resistive output impedance virtual impedance feedforward

Received: 14 April 2014 Published: 28 April 2016

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TM464

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	Articles by authors
	Lin Liaoyuan
	Lin Zhao
	Liu Wei
	Ma Hao

Cite this article:

Lin Liaoyuan,Lin Zhao,Liu Wei等. Wireless Current Sharing Scheme for Parallel Operation of Inverters Using Resistive Output Impedance[J]. Transactions of China Electrotechnical Society, 2016, 31(8): 43-50.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I8/43

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