Dual-master synchronous operation scheme in Taiwan power system

Control center with appropriate monitoring, control and management systems is essential for power system operations. This paper introduces a Dual-Master Synchronous Operation Scheme (DMSOS) of control center implemented in a high density longitudinal power system. It is not master-slave, but a peer-to-peer scheme that probably the first one used in the world. With multi-site functions of energy management system (EMS), the control centers are set at two sites located at northern and southern of Taiwan, and fully redundant not only the EMS facilities but also the dispatching operators in control room. An overview of the operation scheme, including EMS architectures, application functions, multi-site configurations, and operating experiences is presented in this paper.