Title :
Research on deadbeat control strategy of Modular Multilevel Converter
Author :
Liu Xi-Mei ; Zhang Qun ; Zhao Qian ; Yao Zhi-qing
Author_Institution :
Coll. of Autom. & Electron. Eng., Qingdao Univ. of Sci. & Technol., Qingdao, China
Abstract :
In allusion to a new type of converter topology structure-Modular Multilevel Converter (MMC), in order to achieve MMC grid-connected fast and accurately, deadbeat control method combined with a variation of SPWM technology was applied to control MMC. A model of MMC was built with MATLAB/simulink, simulations that MMC connected to grid based on deadbeat control had been done, and its results were compared with the results of ordinary PID controlling MMC. The comparison results show that dynamic performance of the MMC grid-connected system controlled by deadbeat is better than that controlled by ordinary PID, the output current of the former system can track the phase of grid voltage more quickly and accurately and realize grid-connected power factor of 1.
Keywords :
PWM power convertors; three-term control; MATLAB Simulink; MMC grid connected system; SPWM technology; converter topology structure; deadbeat control strategy; grid voltage; modular multilevel converter; ordinary PID control; Application software; Control systems; Educational institutions; Floors; Modulation; Simulation; Voltage control; converter; deadbeat; grid-connected; modular; multilevel;
Conference_Titel :
Transportation, Mechanical, and Electrical Engineering (TMEE), 2011 International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4577-1700-0
DOI :
10.1109/TMEE.2011.6199280
