An embedded communication network simulator for power systems simulations in PSCAD

Abstract

The emergence of distributed communication based control schemes in power systems emphasizes the need for a realistic power systems simulation tool that allows inclusion of communication components. Communication performance parameters like delay and loss in transfer of measurements and commands can affect the result of control and should be taken into account while studying a control mechanism over power system dynamics. In this paper we present the method and tools that we have developed to allow simulation of communication networks inside off-the-shelf product for power system transient simulation, PSCAD. In particular we present the structural designs and interfaces of modules that are needed for implementing an embedded communication network simulator in PSCAD, and provide a brief guide on how power system engineers could use these modules in their designs. In addition, we present an example of a control scheme using communication for stabilizing a power system that incorporates integration of a renewable energy source and energy storage. We use the IEEE 13-node test feeder as our case study. A wind generator and battery are connected to the system to add more dynamic behavior; a control for the system has been designed which works with communication interface and modules implemented in PSCAD. The test system is used to validate and verify the embedded communication simulator and its implementation.