1000 MW超超临界机组变负荷关键参数性能分析及优化  

Performance Analysis and Optimization of Key Parameters under Variable Load in a 1000 MW Ultra-Supercritical Unit

作　　者：赵世斌 林波 金国强[2] 马乐[2] 王明坤 肖娟 ZHAO Shi-bin;LIN Bo;JIN Guo-qiang;MA Le;WANG Ming-kun;XIAO Juan(Shenhua Fujian Energy Co., Ltd., Quanzhou 362712, China;Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China;Xinjiang Tianye Group Co., Ltd., Shihezi 832000, China)

机构地区：[1]神华(福建)能源有限责任公司,福建泉州362712 [2]西安热工研究院有限公司,陕西西安710054 [3]新疆天业集团有限公司,新疆石河子832000

出　　处：《节能技术》2019年第2期147-151,共5页Energy Conservation Technology

摘　　要：随着我国新能源的快速发展,火电机组参与深度调峰成为常态化,然而机组低负荷运行时往往会偏离最优运行工况,因此研究低负荷下多参数热力耦合特性以及控制策略优化能有效地改善火电机组的经济性能。本文分析研究了低负荷下汽轮机关键热力参数对机组的效率、热耗率以及节能量等多个变量的影响,优化了机组滑压运行曲线并确定了控制策略优化方案,提高了机组经济性能,具有很重要的学术意义和工程实用价值。With the rapid development of new energy in China, the participation of thermal power units in deep peak shaving has become a normalization. However, the operation conditions of the unit under low load often deviate from the optimal operating conditions. Therefore, studying the multi-parameter thermodynamic coupling characteristics and control strategy optimization under low load can effectively improve the economic performance of thermal power units. In this paper, the influence of critical thermal parameters of steam turbine on the efficiency, heat consumption rate and energy saving of the unit is studied, and then the sliding curve is optimized and the optimization control strategy are determined, resulting in improving the economic efficiency of the unit, which is of great important academic significance and engineering practical value.

关 键 词：深度调峰 性能分析 主蒸汽压力 热耗率 经济性能 

分 类 号：TM62[电气工程—电力系统及自动化]