Voltage Oriented Based Control Strategy for Cascaded PWM STATCOM

Author

Guo, Suxuan ; Liu, Dichen

Author_Institution

Sch. of Electr. Eng., Wuhan Univ., Wuhan, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APPEEC.2010.5449373

Filename

5449373