Coordinated Damping Control of VSC-HVDC Controllers and Wide Area Controllers

This article demonstrates use of voltage source converter high voltage direct current (VSC-HVDC) and wide area controllers to improve power system stability. VSC-HVDC uses vector control and has a supplementary controller. Wide area controller with time delay compensation regulates the excitation of generator. VSC-HVDC model is introduced. The method of coordinated design of VSC-HVDC controllers and the wide area controllers is presented. The parameters of the controllers are optimized simultaneously by using particle swarm optimization. A four-machine, two-area system with VSC-HVDC is used to test the method of the coordinated design. The results show that the coordinated design of these controllers can enhance the power system stability.

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