The existing flexible transformation plan for coal fired power units focuses on local and short-term aspects,making it difficult to e-liminate the long-term life loss and safety risks caused by frequent and rapid load changes to the thermal system.To improve the safety and e-conomy of coal-fired power units participating in auxiliary services in the electricity market,a system level flexibility transformation plan based on hydrogen energy storage system is proposed for coal-fired power units.After analyzing the existing hydrogen production routes,it is believed that the solid oxide electrolysis cell route has a high degree of integration with coal-fired power generation units,and has the comprehensive advantages of assisting coal-fired power generation units in reducing carbon emissions and improving business profits.A feasible combination scheme of hydrogen energy storage system and coal-fired power unit is proposed based on a domestic 1 000 MW ultra supercritical secondary reheat coal-fired unit as the application object.The relevant research results have reference significance for the development of new system level,safe,healthy,and economical coal power flexibility improvement and transformation plans.
关键词
氢储能/固体氧化物电解槽/煤电机组/灵活性/安全健康
Key words
hydrogen energy storage/solid oxide electrolytic cell/coal electric unit/flexibility/safety and health
维普
万方数据