A novel high-power low-distortion synchronous link converter-based load compensator without the requirement of var calculator

A high-power low-distortion static var compensator based on a synchronous l ink converter has been proposed, where the harmonics are eliminated by inco rporating a low-power insulated-gate-bipolar-transistor-based controlled cu rrent auxiliary converter in conjunction with a high-power gate-turn-off-th yristor-based converter In this paper, a new load compensator based on this topology is proposed which does not require the information of the voltamp ere required by the load, as the requirement of the reactive voltampere cal culator is eliminated, the scheme becomes insensitive to system frequency v ariations, temperature, and component aging. The control scheme required fo r the compensator is developed. The operation of the scheme is validated th rough extensive simulation studies. Experimental results obtained from a la boratory prototype are provided to demonstrate the viability of the scheme.