Linearized Model of Power System with Synchronous Generator, Variable Renewable Energy Generation and Load

Linearized models of single machine infinite bus systems have been widely used for evaluation of small-disturbance rotor angle stability and design of excitation system of synchronous generators (SGs). However, to design controllers for conventional SG and Virtual Synchronous Generators (VSGs) in a future grid where variable renewable energy (VRE) is largely penetrated, a new linearized model including VRE is indispensable. In this study, a linearized model of a power system with an SG, a VRE-type generation and a load was derived considering bus voltage fluctuations due to VRE. This paper describes the model and consideration of the bus voltage fluctuations.