一种单站多电网短期启发式调峰方法  

A Heuristic Short-Term Peak Regulation Method of Single Hydropower Station Supplying Multi Power Grids

作　　者：王华为[1] 周建中[1] 张胜[2] 江保锋[2] 卢鹏[1] 莫莉[1] 

机构地区：[1]华中科技大学水电与数字化工程学院,湖北省武汉市430074 [2]华中电网有限公司,湖北省武汉市430077

出　　处：《电网技术》2015年第9期2559-2564,共6页Power System Technology

基　　金：国家自然科学基金重点项目(51239004)~~

摘　　要：单一水电站向多个电网送电时,由于受电电网负荷量级以及负荷特性的不同,一般很难制定出既满足电站运行约束又同时满足多电网送电量比例要求的电站出力计划。为此,从发电侧及需求侧的角度出发,提出一种单站多电网短期启发式调峰方法,以受电电网剩余负荷在保证平坦的情况下最小为目标建立多电网调峰模型,通过将电网余荷最值作为启发式信息对电站出力过程进行逐步修正,制定既能满足约束条件又能保证剩余负荷平稳的电站出力计划及网间电力分配方案。将所提方法运用于华中电网下辖二滩水电站多电网送电计划编制中,实例表明该方法在兼顾多电网负荷特性的同时能够充分发挥水电站的调峰容量效益,有效解决了单一水电站向多电网送电时的短期调峰问题。Sometimes single hydropower plant needs to supply multiple regional power grids. However, because of huge discrepancy in load level and load characteristics, it’s very difficult to make a daily generation scheduling to satisfy not only the constraints of hydro power station but also the proportion of supplying power. From perspective of generation side and demand side, a heuristic short-term peak regulation method is established. Its objective is to minimize and smooth the residual load of power grids. This method amends output of the station gradually using the maximum and minimum residual load of power grids as heuristic information to meet the demands of constraints and smoothness of residual load. Applying the proposed method to short-term scheduling of Ertan hydropower station, the application results show that this method can not only make full use of peak operation ability, but also give consideration to the load characteristics of power grids, providing an effective approach for short-term peak regulation problem in the case of single station supplying multi grids.

关 键 词：水力发电 多电网 短期调峰 启发式 余荷平稳 

分 类 号：TM312[电气工程—电机]