Title :
A novel high-power low-distortion synchronous link converter-based load compensator without the requirement of VAr calculator
Author :
Chatterjee, Kishore ; Fernandes, B.G. ; Dubey, Gopal K.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Bombay, India
fDate :
6/1/2000 12:00:00 AM
Abstract :
A high-power low-distortion static VAr compensator based on a synchronous link converter has been proposed, where the harmonics are eliminated by incorporating a low-power insulated-gate-bipolar-transistor-based controlled current auxiliary converter in conjunction with a high-power gate-turn-off-thyristor-based converter. In this paper, a new load compensator based on this topology is proposed which does not require the information of the voltampere required by the load. As the requirement of the reactive voltampere calculator is eliminated, the scheme becomes insensitive to system frequency variations, temperature, and component aging. The control scheme required for the compensator is developed. The operation of the scheme is validated through extensive simulation studies. Experimental results obtained from a laboratory prototype are provided to demonstrate the viability of the scheme
Keywords :
electric current control; harmonics suppression; insulated gate bipolar transistors; power systems; static VAr compensators; thyristor convertors; controlled current auxiliary converter; harmonics elimination; high-power; high-power gate-turn-off-thyristor-based converter; load compensator; low-distortion; low-power insulated-gate-bipolar-transistor; simulation; static VAr compensator; synchronous link converter; Aging; Capacitors; Frequency; Insulated gate bipolar transistors; Load management; Power harmonic filters; Reactive power; Static VAr compensators; Switching converters; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on