Modeling and Active Power Control of a Hydropower-Dominant Hybrid Energy System

The dynamic modeling and the ultra-short time scale active power control of a hydropower-dominant hybrid energy system (HES) are studied in this paper. A five power sources HES includes hydropower plants (HPPs), pump storage power plants (PSPP), battery energy storage system (BESS), photovoltaic (PV) and wind power (WP) generation system is firstly simulated by MATLAB/Simulink. For the requirements of power tracking and smoothing target, active power control strategies considering the response characteristics of controllable resources are proposed. Simulation results and quantitative comparisons reveal an ideal control strategy, which has a better power regulation performance and can effectively relieve the burden of the hydropower system.