Parallel operation of electronic power transformer based on distributed logic control

Author

Liu, Haibo ; Mao, Chengxiong ; Lu, Jiming ; Wang, Dan

Author_Institution

Huazhong Univ. of Sci. & Tech., Wuhan

fYear

2007

fDate

4-6 Sept. 2007

Firstpage

93

Lastpage

101

Abstract

An ac/dc hybrid parallel operation control scheme of EPT based on distributed logic control is proposed in order to eliminate circulation current and further improve redundancy performance in this paper. The proposed ac/dc hybrid parallel operation control scheme consists of a dc side current-sharing control scheme and an ac side current-sharing control scheme. The realization of current-sharing no matter in the ac side or in the dc side is based upon instantaneous average current method. Detailed computer simulations based on MATLAB/SIMULINK for the two EPTs parallel operation is conducted, and this parallel system is also implemented in laboratory based on DSP TMS320F2812. Simulation results and experimental results show that the proposed control scheme has good current-sharing performance under both steady-state and dynamic operation.

Keywords

distributed control; electric current control; power electronics; power transformers; AC-DC hybrid parallel operation control; DSP TMS320F2812; circulation current elimination; current-sharing control scheme; distributed logic control; electronic power transformer; instantaneous average current method; Distributed control; Logic; Master-slave; Power system reliability; Power transformers; Redundancy; Steady-state; Topology; Voltage control; Weight control; average-current; electronic power transformer (EPT); parallel; sharing-current control;

fLanguage

English

Publisher

ieee

Conference_Titel

Universities Power Engineering Conference, 2007. UPEC 2007. 42nd International

Conference_Location

Brighton

Print_ISBN

978-1-905593-36-1

Electronic_ISBN

978-1-905593-34-7

Type

conf

DOI

10.1109/UPEC.2007.4468927

Filename

4468927