Title :
Voltage Oriented Based Control Strategy for Cascaded PWM STATCOM
Author :
Guo, Suxuan ; Liu, Dichen
Author_Institution :
Sch. of Electr. Eng., Wuhan Univ., Wuhan, China
Abstract :
This paper presents a three-phase 2N+1 level transformer less cascaded pulse width modulation (PWM) static synchronous compensator (STATCOM) that intended for installation on industrial and utility power distribution systems. Based on voltage oriented control (VOC), this paper proposes a control algorithm that devotes itself not only to meet the reactive power compensation but also to voltage balance of isolated and floating dc capacitors of each H-bridge converter. Based on the relationship of reactive power and active power for each H-bridge converter, the proposed control system is detailed, and the simulation results also demonstrate the validation of proposed control strategy.
Keywords :
PWM power convertors; bridge circuits; power capacitors; power transformers; reactive power control; static VAr compensators; voltage control; active power; bridge converter; cascaded PWM STATCOM; control algorithm; floating dc capacitors; isolated capacitors; pulse width modulation static synchronous compensator; reactive power compensation; three-phase 2N+1 level transformer; utility power distribution systems; voltage oriented based control strategy; Automatic voltage control; Capacitors; Electrical equipment industry; Industrial relations; Power distribution; Pulse transformers; Pulse width modulation; Reactive power control; Space vector pulse width modulation; Voltage control;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5449373
