并联型APF对两类非线性负载的谐波补偿特性研究

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Abstract The harmonic compensation characteristics of shunt APF to voltage-source and current-source type nonlinear loads are studied in this paper by the method of circuit equivalence. It is found that the harmonic amplification effects will occur under both conditions, and the amplification effect is more serious when shunt APF compensating voltage-source type nonlinear load, which will decrease the effectiveness of harmonic compensation. The mathematical expressions to describe the harmonic amplification effect are derived, it is shown that the circuit parameters of the system will affect the harmonic compensation characteristic of shunt APF, proper increment of the load-side equivalent impedance may reduce the harmonic current amplification effect, which ensures good compensation performance for both type of nonlinear loads by shunt APFs. The correctness of theoretical analysis is verified by the results of simulations and experiments.

Key words： Active power filter(APF) nonlinear load harmonic compensation harmonic amplification effect

Received: 07 December 2011 Published: 25 March 2014

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TM77

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	Dai Ke
	Liu Cong
	Li Yanlong
	Zhang Shuquan
	Kang Yong

Cite this article:

Dai Ke,Liu Cong,Li Yanlong等. Study on Harmonic Compensation Characteristics of Shunt APF to Two Types of Nonlinear Loads[J]. Transactions of China Electrotechnical Society, 2013, 28(9): 79-85.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I9/79

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