Analytical Modeling and Control of Grid-Scale Alkaline Electrolyzer Plant for Frequency Support in Wind-Dominated Electricity-Hydrogen Systems

Integration of the hydrogen sector into power systems via electrolyzers could greatly facilitate energy sustainability by producing green hydrogen, moreover, assist in reinforcing frequency stability based on optimal control electrolyzers. In order to improve performance wind-dominated electricity-hydrogen (WEHS), this paper investigates how analytically evaluate and implement dynamic regulation (DFR) supported a grid-scale alkaline electrolyzer (AEL) plant. The DFR's potential AEL plant is released an emulated power-frequency characteristic, its contributions improving system response are also evaluated from aspects transient, steady-state, indicators. Furthermore, DFR dependency containment reserve provision pre-contingency operating points AELs clarified. A DFR-driven controller coordinate multiple modules designed detail. addition, economic analysis presented profitability providing support. Cases simple WEHS modified IEEE 9-bus integrated with plants during contingencies studied validate proposed method, which can smoother transients lower steady-state deviation.