灵活性负荷参与电网调度的经济优化运行  

Flexible Load Participates in the Economic Optimization Operation of Power Grid Dispatching

作　　者：崔喾 张新燕[1] 何广渝 王志磊 王显岚 张洪图 CUI Ku;ZHANG Xin-yan;HE Guang-yu;WANG Zhi-lei;WANG Xian-lan;ZHANG Hong-tu(School of Electrical Engineering,Xinjiang University,Urumqi 830047,China)

机构地区：[1]新疆大学电气工程学院,乌鲁木齐830047

出　　处：《科学技术与工程》2024年第7期2767-2774,共8页Science Technology and Engineering

基　　金：新疆维吾尔自治区自然科学基金(2021D01C044)。

摘　　要：在“碳达峰、碳中和”的背景下,大规模新能源并网使系统出现了调峰压力大、新能源消纳难等问题。随着灵活性负荷占比的不断增大,根据灵活性负荷的不同特性,针对系统面临的问题提出了“源-网-荷-储”相协调的双层优化运行模型。首先,基于分时电价策略引导用户用电行为,建立提升源荷双方综合满意度以及净负荷波动最小的上层多目标模型,利用粒子群算法对上层模型进行求解得到优化后的负荷需求响应并带入下层模型中。其次,根据源荷双方的供需关系,确定参与调度灵活负荷的运行方式,构建以系统调度运行成本最小为目标的下层模型,并采用Cplex求解器求解。最后,以某地区实际系统为例,结果表明了灵活性负荷参与电网调度可缓解电网调峰压力,提高了可再生能源消纳能力,并验证了本文所提模型的有效性。In the background of“carbon peak,carbon neutral”,large-scale new energy grid connection has caused the system peak adjustment pressure,new energy consumption difficulties and other problems.With the increasing proportion of flexible load,a two-layer optimal operation model of“source-network-charge-storage-coordinated”was proposed to solve the problems faced by the system according to the different characteristics of flexible load.Firstly,based on the time-of-use tariff strategy,some users were guided to use electricity,and the upper multi-objective model was established to improve the comprehensive satisfaction of both sources and loads and to make fluctuation of net load minimized.Particle swarm optimization algorithm was used to solve the upper level model and to obtain the optimized load demand response in order to bring it into the lower level model.Secondly,the operation mode of flexible load participating in scheduling was determined and the lower layer model aiming at the minimum operation cost of the system scheduling was constructed in the light of the supply and demand relationship between the two sides of the source and load.In addition,the Cplex solver was used to solve the model.Finally,taking the actual system of a region as an example,the results show that the participation of flexible load in power grid dispatching can alleviate the peak regulation pressure of power grid,improve the absorption capacity of renewable energy,and also verify the effectiveness of the model proposed.

关 键 词：分时电价策略 灵活性负荷 系统调度 源-网-荷-储 

分 类 号：TM734[电气工程—电力系统及自动化]