DocumentCode :
3496701
Title :
An integrated control method for three-level NPC based PWM rectifier-inverter
Author :
Yingchao, Zhang ; Zhengming, Zhao ; Ting, Lu ; Liping, Jin
Author_Institution :
State Key Lab. of Control & Simulation of Power Syst. & Generation Equip., Tsinghua Univ., Beijing, China
fYear :
2010
fDate :
16-18 June 2010
Firstpage :
616
Lastpage :
620
Abstract :
This paper presents a novel integrated control scheme for three-level neutral point clamped (NPC) based PWM rectifier-inverter. Two measures are taken to minimize the size of dc-bus capacitors which are expensive, bulky and have a lifetime limit. Firstly, the direct power control (DPC) for front-end three-level PWM rectifier is applied, which will provide better dynamic performance for the dc-link. Secondly, a power feed-forward control loop from inverter to rectifier side is introduced to reduce the response delay. Some experiments have been performed on an IGBT-based three-level PWM rectifier-inverter, and the results show that with the proposed scheme, the three-level NPC based rectifier-inverter exhibits excellent dynamic performance, and can minimize dc-bus voltage fluctuations remarkably.
Keywords :
Capacitors; DC motors; Induction motors; Inverters; Pulse width modulation; Rectifiers; Voltage control; DPC; PWM rectifier-inverter; dynamic performance; three-level NPC;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics for Distributed Generation Systems (PEDG), 2010 2nd IEEE International Symposium on
Conference_Location :
Hefei, China
Print_ISBN :
978-1-4244-5669-7
Type :
conf
DOI :
10.1109/PEDG.2010.5545876
Filename :
5545876
Link To Document :
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