Title :
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
fDate :
4/1/1999 12:00:00 AM
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;
Journal_Title :
Power Delivery, IEEE Transactions on
