LCL并网滤波器的非线性阻尼控制

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Abstract This paper presents a cascading nonlinear controller that applies to the grid-connected converter with LCL filters, based on linearization control. Herein, on the basis of an affine nonlinear model of three-phase grid-connected converter with LCL filter, the active and reactive currents of the converter at grid side and converter side are controlled with global linearization, through decoupling exaction from nonlinear feedback linearization controller. Consequently, the active damping of the filter is obtained. The cascading nonlinear controller removes the resonance of LCL filters and promotes the control performance of the converter effectively. Simulation and experimental results show the validation and feasibility of the proposed strategy.

Key words： Grid-connected LCL filter active damping nonlinear controller feedback lineari- zation

Received: 25 February 2014 Published: 30 December 2015

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TN713

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	Yang Renzeng
	Zhang Guangxian

Cite this article:

Yang Renzeng,Zhang Guangxian. Nonlinear Damping Controller for Grid-Connected LCL Filters[J]. Transactions of China Electrotechnical Society, 2015, 30(24): 152-159.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I24/152

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