Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2010.11a
- /
- Pages.234-237
- /
- 2010
DC Voltage Balancing Control for Multilevel H-Bridge STATCOM
다단 인버터 STATCOM의 직류전압 평형 제어
- Kim, Kyoung-Jin (Dept. of Electrical Engineering, Kwangwoon University) ;
-
Song, Seong Ho
(Dept. of Electrical Engineering, Kwangwoon University)
;
- Jeong, Seung-Gi (Dept. of Electrical Engineering, Kwangwoon University)
- Published : 2010.11.26
Abstract
This paper proposes a balancing control of DC-link voltages of a H-bridge multilevel inverter for STATCOM application. Individual DC link voltage is controlled by simply adjusting the d-q voltage reference through a PI controller in each cell while the main controller carries out the reactive power control. The correctness and effectiveness of the method are validated by PSIM simulation with unbalanced load condition data taken from a typical arc furnace load, showing the adverse effects of load unbalance to DC link voltage significantly suppressed.
Keywords