Modeling and analysis of a static VAR compensator using multilevel voltage source inverter

A multilevel PWM (pulse-width-modulated) voltage source inverter, especially a five-level one, is introduced to obtain a static VAr compensator (SVC) as a large-scale power source. The three phase SVC is modeled using circuit DQ transformation and completely analyzed including DC and AC characteristics. Through experimental results for a 5 kVA SVC, the validity of the analyses and the feasibility of the VAr compensation system are shown for high-power applications.<<ETX>>

[1]  N. S. Choi,et al.  A general circuit topology of multilevel inverter , 1991, PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference.

[2]  Chun-Taek Rim,et al.  Transformers as equivalent circuits for switches: general proofs and D-Q transformation-based analyses , 1990 .

[3]  G. C. Cho,et al.  Modeling, analysis and control of static VAr compensator using three-level inverter , 1992, Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting.

[4]  Phoivos D. Ziogas,et al.  Analysis and design of a three-phase synchronous solid-state VAr compensator , 1989 .

[5]  Gyu-Hyeong Cho,et al.  A high voltage large capacity dynamic VAr compensator using multilevel voltage source inverter , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[6]  Chun-Taek Rim,et al.  A complete DC and AC analysis of three phase current source PWM rectifier using circuit D-Q transformation , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.