Congestion Management by Migration of a Thermal Power Station between Contiguous Synchronous System - Case Study from India

India has several large pit-head thermal generating complexes with associated evacuation system. Few of these generating complexes, though in geographical proximity, are being electrically separated for congestion management, fault level control and grid security considerations. This paper presents a case study of two super thermal power stations to illustrate the interim measures taken in operation horizon, to facilitate connectivity, generation evacuation in case of mismatch between the commissioning of thermal generating units and the associated transmission system. The case studies also highlight the effective utilization of synchrophasors during online migration of thermal generating units from one large generation complex in one region to another for transmission congestion management in real-time.