A New Converter for Non-Isolated PV Systems

A New Converter for Non-Isolated PV Systems

A new converter for the non-isolated PV (photovoltaic) system is presented in this paper. It has the advantage that the input terminal of the proposed converter is connected to the output negative terminal. In this way, the parasitic capacitance is bypassed to eliminate the undesirable leakage curre...

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Bibliographic Details
Main Authors: Huaibao Wang, Zhigang Lu
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Electronics
Subjects:
PV system
power converter
modulation
Online Access:https://www.mdpi.com/2079-9292/10/14/1716
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spelling doaj-da73cd93ca934bb382cef0ebf92ce5ae2021-07-23T13:38:19ZengMDPI AGElectronics2079-92922021-07-01101716171610.3390/electronics10141716A New Converter for Non-Isolated PV SystemsHuaibao Wang0Zhigang Lu1Department of Electrical Engineering, Yanshan University, Qinhuangdao 066004, ChinaDepartment of Electrical Engineering, Yanshan University, Qinhuangdao 066004, ChinaA new converter for the non-isolated PV (photovoltaic) system is presented in this paper. It has the advantage that the input terminal of the proposed converter is connected to the output negative terminal. In this way, the parasitic capacitance is bypassed to eliminate the undesirable leakage current. The proposed converter can achieve the step-up voltage with four switches only. Aside from that, the carried-based modulation is used, and the control structure is simple. The article analyzes the working modes and control strategy of the proposed converter. In addition, a comparative analysis is provided. The feasibility of the proposed converter under different working modes is verified by simulation. Finally, the digital control prototype with DSP plus FPGA is established and the experimental tests are carried out. The experimental results verify the effectiveness of the proposed converter.https://www.mdpi.com/2079-9292/10/14/1716PV systempower convertermodulation
collection DOAJ
language English
format Article
sources DOAJ
author Huaibao Wang
Zhigang Lu
spellingShingle Huaibao Wang
Zhigang Lu
A New Converter for Non-Isolated PV Systems
Electronics
PV system
power converter
modulation
author_facet Huaibao Wang
Zhigang Lu
author_sort Huaibao Wang
title A New Converter for Non-Isolated PV Systems
title_short A New Converter for Non-Isolated PV Systems
title_full A New Converter for Non-Isolated PV Systems
title_fullStr A New Converter for Non-Isolated PV Systems
title_full_unstemmed A New Converter for Non-Isolated PV Systems
title_sort new converter for non-isolated pv systems
publisher MDPI AG
series Electronics
issn 2079-9292
publishDate 2021-07-01
description A new converter for the non-isolated PV (photovoltaic) system is presented in this paper. It has the advantage that the input terminal of the proposed converter is connected to the output negative terminal. In this way, the parasitic capacitance is bypassed to eliminate the undesirable leakage current. The proposed converter can achieve the step-up voltage with four switches only. Aside from that, the carried-based modulation is used, and the control structure is simple. The article analyzes the working modes and control strategy of the proposed converter. In addition, a comparative analysis is provided. The feasibility of the proposed converter under different working modes is verified by simulation. Finally, the digital control prototype with DSP plus FPGA is established and the experimental tests are carried out. The experimental results verify the effectiveness of the proposed converter.
topic PV system
power converter
modulation
url https://www.mdpi.com/2079-9292/10/14/1716
work_keys_str_mv AT huaibaowang anewconverterfornonisolatedpvsystems
AT zhiganglu anewconverterfornonisolatedpvsystems
AT huaibaowang newconverterfornonisolatedpvsystems
AT zhiganglu newconverterfornonisolatedpvsystems
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