Title :
A new STATCOM topology to compensate loads containing AC and DC components
Author :
Mishra, Mahesh K. ; Ghosh, Arindam ; Joshi, Avinash
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India
Abstract :
The paper proposes a new topology of STATCOM that is capable of supplying AC and DC loads in 3-phase 4-wire distribution systems. In this, the authors utilize the method of instantaneous symmetrical components to extract the compensator reference currents that are then tracked in a hysteresis band current control mode. A suitable state space model of the STATCOM is derived. Based on this model, a single cycle control strategy is proposed and is shown to compensate for the drift in capacitor voltages due to DC components of load currents. The operation of the compensator has been verified through MATLAB simulation and detailed simulation results are given
Keywords :
DC-AC power convertors; compensation; control system analysis computing; electric current control; invertors; load (electric); power distribution control; power system analysis computing; reactive power control; static VAr compensators; 3-phase 4-wire distribution systems; AC loads; DC loads; MATLAB; STATCOM topology; compensator reference currents; compute simulation; control design; control simulation; hysteresis band current control mode; instantaneous symmetrical components; loads compensation; single cycle control strategy; state space model; Automatic voltage control; Capacitors; Choppers; Circuit topology; Hysteresis; Inverters; Paper technology; Transformers; US Department of Transportation; Virtual colonoscopy;
Conference_Titel :
Power Engineering Society Winter Meeting, 2000. IEEE
Print_ISBN :
0-7803-5935-6
DOI :
10.1109/PESW.2000.847298
