考虑配电变压器动态热点温度的居民负荷分布式协调控制  

Distributed coordinated control of residential loads considering dynamic hot⁃spot temperature of distribution transformer

作　　者：赵建立 张沛超[2] 程亦直 韩赫 ZHAO Jianli;ZHANG Peichao;CHENG Yizhi;HAN He(State Grid Shanghai Municipal Electric Power Company,Shanghai 200030,China;Key Laboratory of Control of Power Transmission and Power Conversion Control,Ministry of Education,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]国网上海市电力公司,上海200030 [2]上海交通大学电力传输与功率变换控制教育部重点实验室,上海200240

出　　处：《电力需求侧管理》2021年第3期80-85,共6页Power Demand Side Management

基　　金：国网上海市电力公司科技创新项目(52090D200002);国网上海市电力公司营销专项(64090D19001J)。

摘　　要：电动汽车、空调等负荷的持续增长使得变压器过载和加速老化问题愈发严重。提出一种根据变压器绕组热点温度动态决定最大负载的居民负荷最优协调方法。为了满足负荷的规模性要求,利用对偶原理将原问题分解为各柔性负荷的分布式优化问题。仿真算例考虑了电动汽车和空调等两种柔性负荷,对比了动态阻塞管理、静态阻塞管理、纯自利模式以及自由运行等4种方案。结果表明本方法在显著降低用电成本的同时,能有效实施阻塞管理和控制热点温度。The continuous growth of loads such as electric ve⁃hicles(EVs)and air conditioners(ACs)has made transformer overload and accelerated aging problems more and more serious.An optimal coordination method for residential loads that dynami⁃cally determines the maximum load is proposed based on the hot⁃spot temperature(HST)of the transformer winding.In order to meet the scale requirements of loads,the duality principle is used to decompose the original problem into a distributed optimization problem of each flexible load.The simulation case considers flexi⁃ble loads such as EVs and ACs,and compares four schemes:dy⁃namic congestion management,static congestion management,self⁃interested mode,and free power consumption.Results show that this method can effectively implement congestion management and control the HST while significantly reducing electricity costs.

关 键 词：变压器老化 热点温度 电动汽车 空调负荷 分布式控制 

分 类 号：TM714[电气工程—电力系统及自动化] TK018[动力工程及工程热物理]