Journal article

Fast Frequency Response From Utility-Scale Hydrogen Electrolyzers

Mehdi Ghazavi Dozein, Ahvand Jalali, Pierluigi Mancarella

IEEE TRANSACTIONS ON SUSTAINABLE ENERGY | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | Published : 2021

Abstract

This paper introduces the modelling foundations to study the fast frequency response (FFR) from utility-scale hydrogen electrolyzers (HEs). Specifically, we propose a dynamic model of the HE electrolysis stack, power-electronics interface, and downstream hydrogen process operational constraints, which is suitable for system-level frequency dynamics studies. We then model and study HE FFR dependency on pre-contingency operating point, size, converter's overloading capability, network location, and active power-frequency controller. Different case studies are run on the Australian multi-area test system via dynamic simulations of a 2030 scenario with 50% renewables and in the context of the Au..

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