Parameter Optimization of the LC filters Based on Multiple Impact Factors for Cascaded H-bridge Dynamic Voltage Restorers

Guodong Chen; Miao Zhu; Xu Cai

Parameter Optimization of the LC filters Based on Multiple Impact Factors for Cascaded H-bridge Dynamic Voltage Restorers

Guodong Chen

Miao Zhu

Xu Cai

Vol. 14, No. 1, pp. 165-174, Jan. 2014

10.6113/JPE.2014.14.1.165

Dynamic voltage restorer

Multiple Impact Factors

Parameter optimization

Value Range Function

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Abstract

The cascaded H-Bridge Dynamic Voltage Restorer (DVR) is used for protecting high voltage and large capacity loads from voltage sags. The LC filter in the DVR is needed to eliminate switching ripples, which also provides an accurate tracking feature in a certain frequency range. Therefore, the parameter optimization of the LC filter is especially important. In this paper, the value range functions for the inductance and capacitance in LC filters are discussed. Then, parameter variations under different conditions of voltage sags and power factors are analyzed. In addition, an optimized design method is also proposed with the consideration of multiple impact factors. A detailed optimization procedure is presented, and its validity is demonstrated by simulation and experimental results. Both results show that the proposed method can improve the LC filter design for a cascaded H-Bridge DVR and enhance the performance of the whole system.

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Cite this article

[IEEE Style]

G. Chen, M. Zhu, X. Cai, "Parameter Optimization of the LC filters Based on Multiple Impact Factors for Cascaded H-bridge Dynamic Voltage Restorers," Journal of Power Electronics, vol. 14, no. 1, pp. 165-174, 2014. DOI: 10.6113/JPE.2014.14.1.165.

[ACM Style]

Guodong Chen, Miao Zhu, and Xu Cai. 2014. Parameter Optimization of the LC filters Based on Multiple Impact Factors for Cascaded H-bridge Dynamic Voltage Restorers. Journal of Power Electronics, 14, 1, (2014), 165-174. DOI: 10.6113/JPE.2014.14.1.165.