Improving Power Systems Transient Stability by Coordinated Control of Energy Storage Systems and Synchronous Generators in Presence of Measurement Noise

摘要

This paper proposes a decentralized control scheme for coordinating the synchronous generators and energy storage systems (ESSs) in order to improve the transient stability in the power systems. Acontroller is designed using model predictive control that is able to explicitly consider the system model. The controller utilizes multi-input multi-output (MIMO) model of power plant stations in which the control actions are excitation control, turbine governor of synchronous generators, and output power of ESSs. The proposed controller has a fully decentralized structure and is hosted at power plant stations. Each local controller only uses local models and local measurements to solve the control problem, which is a desirable characteristic for practical implementation of the controller. In order to deal with the measurement noises, a sigmoid-function-based tracking differentiator is employed in the proposed controller structure. The simulation results demonstrate the effectiveness of using ESSs for enhancing power system stability.