Control and Protective System of HVDC Transmission by HVDC Simulator (Thyristor Converter)

Worldwide research and development of the high-voltage thy- ristor converter has been actively promoted recently. In order to apply the thyristor converter to a present-day power system, it is necessary to develop a control and protective system suitable for the system and to study an operating ability when troubles develop in the converter and power system. To solve this problem, we manufactured a HVDC simulator by using a thyristor converter simulating a practical converter and we newly developed the control and protective system.