A modified carrier-based PWM technique for minimization of leakage current in transformer less single-phase grid-tied PV system

被引：5

作者：

Santra, Subhendu Bikash ^{[1
]}

Acharya, Anupam ^{[1
]}

Choudhury, Tanmoy Roy ^{[1
]}

Nayak, Byamakesh ^{[1
]}

Panigrahi, Chinmoy Kumar ^{[1
]}

机构：

[1] KIIT Univ, Sch Elect Engn, Bhubaneswar 751024, Odisha, India

来源：

ELECTRICAL ENGINEERING | 2021年 / 103卷 / 01期

关键词：

Common mode voltage (V-CM); Leakage current; Parasitic capacitance; Transformer less PV system; POWER POINT TRACKING; INVERTER TOPOLOGY; MODULATION; SCHEME;

D O I：

10.1007/s00202-020-01092-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper discusses the impact of leakage current and its dependency on common mode voltage in transformer less single-phase grid connected photovoltaic (PV) system. Further a new carrier-based PWM method is derived for H bridge single-phase grid-tied PV inverter to minimize leakage current. The proposed modulation strategy is compared with conventional techniques through simulation in MATLAB R2018a. The superiority of the proposed technique is validated in laboratory prototype of a 500 W single-phase grid-tied PV system. The hardware results validate the theoretical findings in appropriate.

引用

页码：447 / 461

页数：15

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