含双馈风电机组的电力系统故障计算方法研究

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Abstract The complex fault current characteristics of doubly-fed induction generators (DFIGs) cause that the conventional fault analysis method based on AC synchronous generators is not applicable for the power systems containing DFIGs.According to the low voltage ride through (LVRT) control strategy of the DFIGs,the short-circuit calculation models of the DFIGs are established considering their excitation regulation characteristics for the three-phase fault or the unbalanced fault.Based on this,the sequence networks of the power systems containing DFIGs are proposed using the symmetrical component method.According to the nodal voltage equations,the fault boundary conditions equation,and the short-circuit calculation models of DFIGs,the branch currents and the node voltages are calculated based on an iterative algorithm.The simulation results show that the proposed method has a high accuracy of short-circuit current calculation and can meet the requirements of engineering applications.

Key words： DFIGs short-circuit calculation low voltage ride through equivalent model iterative algorithm

Received: 20 January 2015 Published: 21 January 2016

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TM74

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	Xiao Fan
	Zhang Zhe
	Yin Xianggen
	Yang Hang
	Yang Zengli

Cite this article:

Xiao Fan,Zhang Zhe,Yin Xianggen等. The Fault Calculation Method of Power Systems Including Doubly-fed Induction Generators[J]. Transactions of China Electrotechnical Society, 2016, 31(1): 14-23.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I1/14

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