Modelling and Simulation of Energy Storage System for Frequency Stability Studies

Modelling and Simulation of Energy Storage System for Frequency Stability Studies

Zhang, Chenrui (TU Delft Electrical Engineering, Mathematics and Computer Science; TU Delft Intelligent Electrical Power Grids)

Rueda, José L. (mentor)
Rakhshani, E. (graduation committee)
Veerakumar, Nidarshan (graduation committee)

Delft University of Technology

Electrical Engineering | Electrical Power Engineering

2020-08-31

The frequency stability of the power system is challenged by the high penetration of power electronic interfaced renewable energy sources (RES). This paper investigates the improvements of frequency responses of fully decoupled wind power generators (FDWG) by proposing a novel implementing of ultracapacitors (UC) within a hybrid scheme in real-time simulations of wind power plants. UCs are selected as ideal power sources in fast active power-frequency control due to their high power density and fast-reacting speed. Batteries and UCs combined hybrid energy storage systems (HESS) are formed to complement their characteristics. Droop-based and derivative-based control and virtual synchronous power (VSP) are the selected strategies to control power system frequency stability. The best frequency performance trading off with HESS cost is found by solving an optimization problem. The proposed optimization algorithm is used to define the HESS size and controller parameters. The optimization results are analysed to illustrate the improvements of frequency stability control comparing the results of droop and derivative-based control with the VSP control strategy.

Fast active power-frequency response
ultracapacitor model
hybrid energy storage system
fully decoupled wind power generator
mean-variance mapping optimization
RTDS

http://resolver.tudelft.nl/uuid:f44fce98-40cb-48f2-8609-3d0e7e9df9d6

2022-07-31

Student theses

master thesis

© 2020 Chenrui Zhang