Title :
A fast current control strategy of a PWM inverter used for static VAr compensation
Author :
Tahri, A. ; Draou, A. ; Benghanem, M.
Author_Institution :
Inst. of Electrotech., Univ. of Sci. & Technol. of Oran, Algeria
fDate :
31 Aug-4 Sep 1998
Abstract :
This paper deals with the modelling and control of an advanced static VAr compensator (ASVC) system with a self-controlled DC bus which employs a three-phase PWM voltage source inverter. The ASVC system is modelled using the d-q transform and employs a programmed PWM voltage waveshaping pattern stored in an EPROM to simplify the logic software and hardware requirements. The inverter system can compensate leading and lagging reactive power supplied by the load connected to the supply. This model is used to design an efficient control strategy based on the control of the phase angle of the switching pattern. Simulated results obtained with Matlab are also presented and discussed to validate the model
Keywords :
DC-AC power convertors; PWM invertors; compensation; control system analysis computing; control system synthesis; electric current control; reactive power control; static VAr compensators; Matlab; PWM inverter; computer simulation; control design; control simulation; control strategy; d-q transform; fast current control strategy; phase angle switching pattern; programmed PWM voltage waveshaping pattern; self-controlled DC bus; static VAr compensation; three-phase PWM VSI; voltage source inverter; Current control; EPROM; Hardware; Logic; Mathematical model; Power system modeling; Pulse width modulation; Pulse width modulation inverters; Static VAr compensators; Voltage control;
Conference_Titel :
Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE
Conference_Location :
Aachen
Print_ISBN :
0-7803-4503-7
DOI :
10.1109/IECON.1998.724285
