多变边界火电机组能耗基准状态表征方法  

The Mechanism of Energy-Consumption Benchmark in Coal-Fired Units With Varying Boundary

作　　者：付鹏[1] 王宁玲[1] 杨勇平[1] 杨志平[1] 

机构地区：[1]华北电力大学能源动力与机械工程学院,国家火力发电工程技术研究中心,北京102206

出　　处：《工程热物理学报》2015年第3期468-473,共6页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.51306050;No.71171080);国家自然科学基金联合基金(No.U1261210);中央高校基本科研业务费专项资金(No.12QN05)

摘　　要：运行于多变边界条件下给火电机组深度节能研究带来新的挑战。本文基于单耗分析理论,突破传统单一基准值概念,综合考虑机组运行边界条件、运行操作水平和设备性能状况等因素,探索机组能耗基准状态的科学表征方法。将机组能耗与描述机组特性的参数空间相对应,从参数、设备、子系统和机组等层面确定能耗作用规律,构建以机组单耗为优化目标的能耗基准状态表征模型,并应用于某600 MW超临界机组中。研究表明,火电机组的能耗基准状态与设备特性、边界条件、运行工况和操作水平密切相关,能耗基准状态的确定对机组全工况节能诊断与运行优化具有重要意义。The in-depth energy conservation of thermal power units is confronting new challenges under the varying operation conditions and ambient constraints.The description of energy-consumption benchmark state was proposed to describe the economic performance of thermal power units with the varying operation boundary,operation conditions and equipment performance.Based on the fuel specific consumption analysis theory,the energy consumption interactions of units were divided into 4parts:parameters,equipment,subsystems and units.The models for energy-consumption benchmark states were established with the fuel specific consumption setting as the optimization objective.Such a method was performed on a 600 MW supercritical power unit and the results show that the energy-consumption benchmark state,which is related with the varying boundary,can reflect the boundary condition,operation lever and equipment performance.It makes significant reference for the energy-saving diagnosis and operation optimization of thermal power units under overall working conditions.

关 键 词：能耗基准状态 单耗分析 多变边界 节能诊断 

分 类 号：TM621[电气工程—电力系统及自动化]