Analogue simulation studies with actual controllers for TCSC

Experimental small scale models of a thyristor controlled series compensator (TCSC) were made for FACTS equipment which is expected to be put into practical use in the near future in Japan. The control and protection systems of the equipment could be used practically and immediately. Effectiveness and the possibility of realization of the equipment for power system stabilization were confirmed through digital simulations and tests with an analogue simulator which combines the small scale models. Finally, the actual equipment was fabricated and the control and protection systems were developed.