Optimal Proportion of Wind, PV, Hydrogen and Storage Capacity Based on Time Sequence Simulation

Abstract

In the context of China’s construction of a high-renewable (RE) power system (innovative power system), and distributed power generations represented by solar power and wind power have realized large-scale applications. However, the volatility, randomness and intermittency of wind power and solar power generation bring challenges to the safe and stable operation of the system. Taking advantage of the long-cycle and large-capacity storage characteristics of hydrogen energy to construct an integrated system of wind-solar-hydrogen-storage can effectively meet the above challenges. optimized calculation of the installed proportion of the integrated system can effectively improve the utilization efficiency of renewable energy and reduce investment costs. In this paper, based on the time-sequence production simulation method, a two-stage optimal proportion model for integrated system of wind-solar-hydrogen-storage is formulated, the optimal capacity of each generation equipment in the system is calculated, and a practical case is taken as an example for simulation calculation. It shows that a 23MW wind farm of and a 17MW solar power plant are equipped with a 39. 9MW alkaline and a 1900kg hydrogen storage tank, the comprehensive benefit of the system is the highest. The relevant calculation results verify the rationality of the time-sequence simulation model and the correctness of the theoretical analysis proposed in this paper, which serves as important guidance for the planning of the electric hydrogen integrated system development.