多类型供热机组热电负荷分配优化提升热电厂经济性的效果分析  

Analysis on the Economic Efficiency Improvement of a Large Thermal Power Plant through Optimal Heat and Power Load Distribution among Multi-type Cogeneration Units

作　　者：杨海生 唐广通 王文营 金鹤峰 吴云凯 YANG Hai-sheng;TANG Guang-tong;WANG Wen-ying;JIN He-feng;WU Yun-kai(Hebei Energy Technology Service Co.,Ltd.,Shijiazhuang 050021,China;Hebei Technology Innovation Center of Energy Conservation and Environmental Protection for Thermal Power Generation,Shijiazhuang 050021,China;Zhejiang Engipower Technology Co.,Ltd.,Hangzhou 311121,China)

机构地区：[1]国网河北能源技术服务有限公司,石家庄050021 [2]河北省火力发电节能环保技术创新中心,石家庄050021 [3]浙江英集动力科技有限公司,杭州311121

出　　处：《汽轮机技术》2025年第2期145-149,155,共6页Turbine Technology

基　　金：国网河北省电力有限公司科技项目“兼顾能耗-调峰响应性能的热电厂多机组协同经济运行关键技术研究及应用”(项目编号TSS2023-02)资助。

摘　　要：研究了在全厂总供热需求及全厂电出力一定的条件下多类型供热机组的热电负荷分配优化问题。基于Ebsilon建模仿真软件获取的4台机组热电特性和电-热-耗煤量特性,采用数值优化软件对两类电厂应用情景下的热、电负荷分配进行了优化分析。优化分析结果表明,在情景二,全厂总热负荷3000GJ/h、全厂总电出力890MW条件下,4台机组开机方式下的优化方案与基准方案相比,总耗煤量降低5.0t/h,每小时可节省标煤成本0.45万元。不同开机台数的优化结果表明,当机组开机台数对应的发电、供热能力与全厂总电出力、总供热负荷相比裕量较大时,优化方案与基准方案相比取得的优化效果十分可观,具有巨大的现场推广应用价值。The study investigates the optimization of heat and power load distribution among multiple types of cogeneration units under constant total heat demand and total power output of the entire plant.Based on the performance characteristic of electricity,heat,and coal consumption obtained from the Ebsilon,an optimization analysis of the heat and power load distribution under two scenarios was conducted.The results of the optimization analysis indicate that under Scenario II,with a total heat load of 3000GJ/h and a total power output of 890MW for the entire plant,the total coal consumption of the optimized scheme is reduced by 5.0t/h compared to the baseline scheme,saving a standard coal cost of 4500 Yuan/h.The optimization results show that when the power generation and heating capacity corresponding to the number of units in operation have a significant margin compared to the total power and total heat load of the entire plant,the optimization scheme achieves a considerable economic benefit,which has great value for on-site application.

关 键 词：热电厂 多类型供热机组 热电负荷优化分配 全厂经济性 

分 类 号：TM621[电气工程—电力系统及自动化]