DocumentCode
170176
Title
Design and analysis of the controllable output impedance method for parallel single-phase inverters
Author
Haixian Liu ; Jinbin Zhao ; Keqing Qu
Author_Institution
Coll. of Electr. Eng., Shanghai Univ. of Electr. Power, Shanghai, China
fYear
2014
fDate
Sept. 28 2014-Oct. 2 2014
Firstpage
1
Lastpage
6
Abstract
A controllable output impedance method for parallel inverters system is proposed in this paper. The control strategy uses LCL filter in output side and add a current loop to adjusting the output current of the inverter bridge. With this modification, the output impedance of inverter is compensated to a specific value then the difference of line and filter impedance can be neglected. Redesigned output impedance reasonable can achieve power sharing with power rating ratio. Simulation results are presented to prove the efficiency and feasibility of proposed control strategy.
Keywords
LC circuits; bridge circuits; electric current control; electric impedance; invertors; LCL filter inpedance; control strategy; controllable output impedance method analysis; parallel single-phase inverter bridge; power rating ratio; power sharing; Frequency control; Impedance; Inductors; Inverters; Reactive power; Steady-state; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Telecommunications Energy Conference (INTELEC), 2014 IEEE 36th International
Conference_Location
Vancouver, BC
Type
conf
DOI
10.1109/INTLEC.2014.6972204
Filename
6972204
Link To Document