基于线性规划法和等微增率法的电厂负荷优化分配  

Optimizational Method Based on the Linear Programming Method and the Equal Incremental Principle of Load Distribution in Power Plant

作　　者：王惠杰[1] 范志愿 李鑫鑫[1] 

机构地区：[1]华北电力大学能源动力与机械工程学院,河北保定071003

出　　处：《电力科学与工程》2016年第1期1-5,30,共6页Electric Power Science and Engineering

基　　金：国家高技术研究发展计划(863计划)(2013AA05040202)

摘　　要：负荷优化分配是发电企业节能降耗、提高市场竞争力的重要途径。目前针对此类问题国内外进行了相关的研究并提出了许多方案。阐述了等微增率法和线性规划法在负荷优化分配中的应用,并结合国内两台典型机组进行了分析。结果表明:两种分配方法的总体趋势都是汽轮机的热耗率随着负荷的升高而减小,而且汽轮机的热耗变化率逐渐减小。两种分配方法在最低负荷时,汽轮机的热耗率差值最小;55%负荷时,汽轮机的热耗率差值最大;55%负荷到额定负荷之间,汽轮机的热耗率差值逐渐缩小。分析结论对当前的节能优化调度具有一定的参考价值。The optimization of the load distribution is of great importance to the energy saving and market competition improving for the power plants. At present, this problem have been studied and substantial methods have been proposed. By applying the equal incremental method and linear programming method to the load distribution optimization, two typical domestic units are analyzed. Results calculated by the above methods show that heat consumption rate increases with the fall of the load. Variance ratio of heat consumption rate decreases gradually. The difference of heat consumption rate is minimum when the load is of 55 percent. It gradually falls as the load inereases from 55% to the rated. The results have a certain reference value for the current economic dispatch of energy.

关 键 词：负荷优化分配 等微增率法 线性规划法 能耗特性 

分 类 号：TM714[电气工程—电力系统及自动化]