区域供冷系统参与电力系统二次调频的控制策略  

Control Strategy for District Cooling System Participating in Secondary Frequency Regulation of Power Systems

作　　者：毛田 周保荣 劳子卿 赵文猛 刘明波[2,3] 王滔 MAO Tian;ZHOU Baorong;LAO Ziqing;ZHAO Wenmeng;LIU Mingbo;WANG Tao(Electric Power Research Institute,CSG,Guangzhou 510663,China;School of Electric Power Engineering,South China University of Technology,Guangzhou 510640,China;Guangdong Key Laboratory of Clean Energy Technology,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]南方电网科学研究院,广州510663 [2]华南理工大学电力学院,广州510640 [3]华南理工大学广东省绿色能源技术重点实验室,广州510640

出　　处：《南方电网技术》2024年第11期88-96,共9页Southern Power System Technology

基　　金：国家自然科学基金资助项目(52077083);广东省科技计划项目(2022A0505020015)。

摘　　要：区域供冷系统是一类特殊的、规模化的中央空调负荷,具有参与电力系统调频的潜力。基于模型预测控制方法提出了一种区域供冷系统参与二次调频的控制策略。首先,建立了区域供冷系统动态模型和火电系统调频动态模型。然后,以最小化建筑物温度与人体舒适温度偏差、火电机组调频功率指令和频率偏差为目标,设计了模型预测控制器优化分配区域供冷系统和火电机组的调频指令。最后,在含区域供冷系统的10机39节点系统上进行了仿真计算,结果表明,区域供冷系统参与调频能够改善系统调频效果,参与调频也不会对用户舒适度有较大影响。The district cooling system is a special and large-scale category of central air conditioning load with the potential to participate in the power system frequency regulation.Based on the model prediction control method,a control strategy for the district cooling system is proposed to participate in secondary frequency regulation.First,the dynamic model of district cooling system and the dynamic model of thermal power system frequency regulation are established.Then,with the goal of minimizing the deviation between building temperature and human comfort temperature,thermal power unit frequency regulation commands and the frequency deviation,the model predictive controller is designed to optimally allocate the frequency regulation commands of the district cooling system and thermal power units.Finally,simulations were performed on a 10-unit 39-node system containing district cooling system,and the results show that the participation of district cooling system in frequency regulation can improve the system frequency regula⁃tion effect and the participation in frequency regulation does not have a large impact on the user comfort level.

关 键 词：区域供冷系统 二次调频 模型预测控制 比例积分控制 

分 类 号：TM73[电气工程—电力系统及自动化]