Hybrid Control System for Managing Voltage and Reactive Power in the JEJU Power System

다국어 초록 (Multilingual Abstract)

This paper proposes a hybrid voltage controller based on a hierarchical control structure for implementation in the Jeju power system. The hybrid voltage controller utilizes the coordination of various reactive power devices such as generators, switched shunt devices and LTC to regulate the pi-lot voltage of an area or zone. The reactive power source can be classified into two groups based on ac-tion characteristics, namely continuous and discrete. The controller, which regulates the pilot bus volt-age, reflects these characteristics in the coordination of the two types of reactive power source. How-ever, the continuous type source like generators is a more important source than the discrete type for an emergency state such as a voltage collapse, thereby requiring a more reactive power reserve of the con-tinuous type to be utilized in the coordination in order to regulate the pilot bus voltage. Results show that the hybrid controller, when compared to conventional methods, has a considerable improvement in performance when adopted to control the pilot bus voltage of the Jeju island system.

참고문헌 (Reference)

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