Next Article in Journal
Downlink Power Allocation Strategy for Next-Generation Underwater Acoustic Communications Networks
Next Article in Special Issue
Review of Multilevel Voltage Source Inverter Topologies and Analysis of Harmonics Distortions in FC-MLI
Previous Article in Journal
Open Vision System for Low-Cost Robotics Education
Previous Article in Special Issue
New “Full-Bridge Buck Inverter–DC Motor” System: Steady-State and Dynamic Analysis and Experimental Validation
Open AccessArticle

Current Source AC-Side Clamped Inverter for Leakage Current Reduction in Grid-Connected PV System

Department of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China
Author to whom correspondence should be addressed.
Electronics 2019, 8(11), 1296;
Received: 16 October 2019 / Revised: 24 October 2019 / Accepted: 29 October 2019 / Published: 6 November 2019
(This article belongs to the Special Issue Power Converters in Power Electronics)
For the grid-connected photovoltaic inverters, the switching-frequency common-mode voltage brings the leakage current, which should be eliminated. So far, many kinds of single-phase inverters have been published for this purpose, but most of them are the conventional voltage-type ones, which have the disadvantages of poor reliability due to the DC-link electrolytic capacitor and the risk of short-through of the bridge switches. To solve this technical issue, a novel current source inverter with AC-side clamping is proposed to mitigate the switching-frequency common-mode voltage. Meanwhile, a novel modulation method is proposed for the new single-phase inverter to achieve low-frequency operation of the main switches, which reduces the switching losses. Finally, the proposed method is implemented on the TMS320F28335DSP + XC6SLX9FPGA digital hardware platform. Also, the performance comparisons are done with the traditional solution. The results prove the proposed solution.
Keywords: current source inverter; common-mode voltage; leakage current current source inverter; common-mode voltage; leakage current
MDPI and ACS Style

Li, X.; Wang, N.; San, G.; Guo, X. Current Source AC-Side Clamped Inverter for Leakage Current Reduction in Grid-Connected PV System. Electronics 2019, 8, 1296.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop