Optimal Configuration of Hydrogen Energy Storage for Wind and Solar Power Stations Considering Electricity-Hydrogen Coupling Under Carbon Neutrality Vision

doi:10.12204/j.issn.1000-7229.2022.01.002

Abstract

Abstract:

Due to the fluctuation and intermittence of new energy output, its direct access to the grid will affect the safe and stable operation of the power system. In order to promote renewable energy consumption, developing hydrogen storage system coupled with electricity and hydrogen is an effective way. For this reason, aiming at the optimal configuration of hydrogen storage capacity of new energy power station at the power generation side, a multi-objective optimal configuration model of hydrogen energy storage is established with the minimum investment cost of hydrogen energy storage, the minimum system cumulative tracking plan error and the maximum increment of carbon dioxide emission reduction as the objective function, and the abandonment rate and the actual site area as the constraints. The model is solved by the combination of genetic algorithm with elitist strategy and entropy weight method. Finally, the effectiveness of the proposed model and algorithm is verified by a case study in Gansu Province, China. The results show that the optimal number of 200 kW electrolytic cells, 6 kg hydrogen storage tanks and 200 kW fuel cells are 268, 291 and 222, respectively. The hydrogen storage system can actively respond to the dispatching command and greatly reduce the power abandonment rate.

Key words: generation side, wind and solar power station, hydrogen energy storage, capacity configuration

CLC Number:

TM76

XU Chuanbo, ZHAO Yunhao, WANG Xiaochen, KE Yiming. Optimal Configuration of Hydrogen Energy Storage for Wind and Solar Power Stations Considering Electricity-Hydrogen Coupling Under Carbon Neutrality Vision[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(1): 10-18.

Figures/Tables 14

Fig.1 Diagram of hydrogen storage system

Fig.2 Basic process of NSGA-II

Fig.3 Hourly data of radiation intensity, wind speed and temperature in Jiayuguan

Table 1 Relevant parameters of photovoltaic system

Table 2 Relevant parameters of wind power system

Table 3 Relevant parameters of hydrogen energy storage system

Table 4 Relevant cost parameters of hydrogen energy storage system

Fig.4 Profile of wind and solar joint output and power grid dispatching instructions

Fig.5 Pareto results of hydrogen storage system configuration

Table 5 Top 5 configuration result of hydrogen storage system

Fig.6 System tracking plan error before and after configuration

Fig.7 Correlation between goals f1 and f2

Fig.8 Correlation between goals f1 and f3

Fig.9 Correlation between goals f2 and f3

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