Modelling and analysis of the Quadrature-booster phase shifter with PWM AC bipolar matrix-reactance chopper and passive load

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Zbigniew Fedyczak, Maciej Jankowski, Paweł Szcześniak

This paper deals with a quadrature-booster phase shifter for power flow control and for transient stability improvement in AC transmission systems. The PWM AC bipolar matrix chopper (MC) is proposed for the control of the qudrature voltage component of the original voltage. There are presented in this paper both steady and transient state analyses of a transmission system with passive load based on averaged circuit models. Furthermore, simulation and experimental test results obtained in a three-phase 3 kVA laboratory model are also presented.

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