HTES Hydrogen Production Plant Control Methods for Fluctuating Power Sources

Abstract

The electrolysis current control methods for HTES (High Temperature Electrolysis of Steam) hydrogen production plants are proposed. The methods enable the plants to produce Hydrogen in various production rates that is necessary for following fluctuating power sources, such as a wind power generation plant. The HTES plant simulator is developed to design and to evaluate the control system. The simulator consists of the SOEC model, the heat exchanger model, and the pressure difference estimation model. PWM electrolysis current control method is proposed and steam flow following current control method is evaluated by the simulator.