High-frequency isolated grid-connected PV inverter based on SPWPM

Author

Xuecheng Li ; Hui Liang ; Junli Geng

Author_Institution

Nat. Active Distrib. Network Technol. Res. Center (NANTEC), Beijing Jiaotong Univ., Beijing, China

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

4

Abstract

A novel high-frequency isolated grid-connected PV inverter based on sinusoidal pulse width position modulation (SPWPM) is studied. It is suitable for household PV utility with advantages of light weight, small volume and high efficiency. The working principle is analyzed in details and a close loop control strategy is designed. In order to eliminate the grid-connected current distortion caused by phase error, the phase compensation control strategy is employed in current control loop to improve the traditional proportional integration controller. Validity of the topology and control strategy of this novel inverter is verified with experimental results.

Keywords

PI control; closed loop systems; electric current control; invertors; photovoltaic power systems; SPWPM; close loop control strategy; current control loop; grid-connected PV inverter; grid-connected current distortion; household PV utility; phase compensation control; phase error; proportional integration controller; sinusoidal pulse width position modulation; Frequency modulation; Inductors; Inverters; Photovoltaic systems; Pulse width modulation; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo

Conference_Location

Beijing

Print_ISBN

978-1-4799-4240-4

Type

conf

DOI

10.1109/ITEC-AP.2014.6940722

Filename

6940722