Parallel Control of Ultra-supercritical Unit under Requirements of Flexible Operation

Abstract

The flexible operation of thermal power units is deemed as the main support for energy structure transformation of power system. Considering the significant importance of the ultra-supercritical unit in thermal power generation, a parallel control system is designed for ultra-supercritical unit in this paper to guarantee the safety, stability and economy of flexible operation process under large-scale renewable energy integration. Based on the developed artificial control system coordinating dynamics modeling technics and control strategies, the optimal modeling and control algorithms are determined for actual control system through computation experiment and evaluation. Finally, the performance of flexible operation for ultra-supercritical unit is ensured via parallel execution and mutual modification between the constructed artificial system and actual system.