1000MW二次再热超超临界机组分散控制系统关键技术研究及应用

摘要

Based on the analysis of the difficulties in the control of double-reheat power generation units,the development of the key technologies of the distributed control system (DCS) for 1 000-MW double reheat ultra-supercritical (DRUSC) power generation units is presented,which involves the design and technical characteristics of DCS,the key control strategies and technologies for the coordinated control system,the steam temperature,the bypass system and the automatic plant startup and shutdown (APS).The application on the demonstration project shows that the performance of DCS is stable and reliable with the major indices meeting or better than the designed values.The whole-process automatic control from starting up to shutting down has been realized.%在分析二次再热机组控制难点的基础上,介绍了1000 MW二次再热超超临界机组国产自主化分散控制系统关键技术的研发,包括机组分散控制系统的设计及技术特点,机组协调控制技术,汽温控制技术,旁路控制技术及机组自启停(APS)控制技术.示范工程的应用表明,该分散控制系统性能稳定可靠,各项性能指标达到或优于设计值,机组实现了启停全程控制自动化.