Implementation of Control Hardware In-the Loop Simulation Test System and Error Correcting Method for Transmit Signal of External Controller using Real Time Digital Simulator

Recently, the functionality of real-time simulator has been grown gradually by the development of computer technology. Owing to the improvement on the simulation size and interpretation precision, the application rage of it has been gradually expanding. In particular, real-time simulator is capable of installing and testing the equipment of high power system. And it is possible to test the real hardware system such as the electrical power devices. However, the disturbance from external influence can be added. In addition, so it is required to check any error which is caused during the simulation between the external controller and the internal model. That is the reason that study on accuracy improvement for the simulation algorithm is required. In this paper, Hardware in the Loop simulation test system between STATCOM system model and external digital controller using Real Time Digital Simulator is demonstrated. The simulation error caused by the hardware in the loop is analyzed and correction techniques for the error is demonstrated.