Research on the supercapacitor support schemes for LVRT of variable-frequency drive in the thermal power plant

被引：0

作者：

Han, Qiguo ^{[1
]}

Zhu, Kai ^{[1
]}

Shi, Wenming ^{[1
]}

Wu, Kuayu ^{[2
]}

Chen, Kai ^{[3
]}

机构：

[1] Hangzhou Dianzi Univ, Hangzhou 310018, Zhejiang, Peoples R China

[2] State Grid Zhejiang Elect Power Res Inst, Hangzhou 310014, Zhejiang, Peoples R China

[3] Hangzhou Donghua Elect Co Ltd, Hangzhou 310030, Zhejiang, Peoples R China

来源：

INTERNATIONAL CONFERENCE ON ENERGY ENGINEERING AND ENVIRONMENTAL PROTECTION (EEEP2017) | 2018年 / 121卷

关键词：

D O I：

10.1088/1755-1315/121/4/042021

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In order to solve the problem of low voltage ride through(LVRT) of the major auxiliary equipment's variable-frequency drive (VFD) in thermal power plant, the scheme of supercapacitor paralleled in the DC link of VFD is put forward, furthermore, two solutions of direct parallel support and voltage boost parallel support of supercapacitor are proposed. The capacitor values for the relevant motor loads are calculated according to the law of energy conservation, and they are verified by Matlab simulation. At last, a set of test prototype is set up, and the test results prove the feasibility of the proposed schemes.

引用

页数：8

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