Distribution system compensation using a new binary multilevel voltage source inverter

Author

Patil, K.V. ; Mathur, R.M. ; Jiang, J. ; Hosseini, S.H.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, Ont., Canada

Volume

14

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

459

Lastpage

464

Abstract

A new binary multilevel voltage source inverter with separate DC sources is proposed. This n-level voltage source inverter produces a (2 ⁿ⁺¹-1)-steps AC voltage output with n full bridge inverters connected in series. The use of selective harmonic elimination modulation technique to either completely eliminate or minimize harmonics is studied. A closed-loop controller to control the capacitor voltages and adjust the inverter reactive power output is developed. Application of such a compensator for dynamic compensation of 13.8 kV distribution system is examined through transient studies using a PSCAD/EMTDC program. The proposed inverter configuration not only reduces the system complexity and its size, but also improves the harmonic profile significantly

Keywords

bridge circuits; closed loop systems; compensation; harmonics suppression; invertors; power distribution control; power system harmonics; reactive power control; static VAr compensators; voltage control; (2ⁿ⁺¹-1)-steps AC voltage output; 13.8 kV; PSCAD/EMTDC program; STATCOM; binary multilevel voltage source inverter; capacitor voltages control; closed-loop controller; compensator; distribution system; distribution system compensation; harmonic profile improvement; harmonics elimination; harmonics minimisation; inverter reactive power output control; n-level voltage source inverter; selective harmonic elimination modulation; separate DC sources; series connected full bridge inverters; transient studies; Capacitors; Control systems; Harmonic distortion; Inverters; Load flow; PSCAD; Power electronics; Power system dynamics; Power system harmonics; Voltage control;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.754089

Filename

754089