Application of a novel stability control system for coordination of power flow control devices in the future GB transmission system

Abstract

Abstract-Following the increase in development of large-scale renewable energy sources in the UK and the pressing need for adequate transmission capacity to accommodate the upcoming renewable generation, more state-of-the-art power flow control devices such as embedded High Voltage DC (HVDC) links will come into operation in the future GB transmission system to provide the additional capacity. However, an operational supervisory stability control system is required to ensure the coordinated control of power flow control devices in order to achieve optimal dynamic performance and make stability limits a less binding factor than thermal limits. The focus of this paper is to demonstrate the capability of the multi variable controller for coordinated control using a non-parametric sampled regulator control design method. This method is very attractive for applications in large power systems since the complexity of the controller design would not increase by size of the power system. Also, in this study, this design method has been demonstrated for two power system applications.Index Terms-Sampled Regulator, Stability Control and HVDC link.