考虑设备变工况特性的区域综合能源系统优化调度方法  

Operation Optimization Method for Regional Integrated Energy System Considering Part-load Performances of Devices

作　　者：陈晚晴 穆云飞[1,2] 贾宏杰[1,2] 魏炜[1,2] 何伟 CHEN Wanqing;MU Yunfei;JIA Hongjie;WEI Wei;HE Wei(Key Laboratory of Smart Grid of Ministry of Education(Tianjin University),Nankai District,Tianjin 300072,China;Key Laboratory of Smart Energy&Information Technology of Tianjin Municipality(Tianjin University),Nankai District,Tianjin 300072,China;Electric Power Research Institute,State Grid Jiangxi Electric Power Company,Nanchang 330096,Jiangxi Province,China)

机构地区：[1]智能电网教育部重点实验室(天津大学),天津市南开区300072 [2]天津市智慧能源与信息技术重点实验室(天津大学),天津市南开区300072 [3]国网江西省电力有限公司电力科学研究院,江西省南昌市330096

出　　处：《电网技术》2021年第3期951-958,共8页Power System Technology

基　　金：国家电网公司总部科技项目(52182019000K)。

摘　　要：区域综合能源系统(regionalintegrated energysystem,RIES)调度方案的经济性受不同能源转换设备模型参数准确性的影响。传统静态能源集线器(energy hub,EH)模型将设备效率视为常数,忽略了设备效率随负载率变化的变工况特性,影响到设备模型的准确性,进而降低了RIES调度方案经济性。为考虑设备变工况特性对系统优化调度方案的影响,提出了一种考虑设备变工况特性的RIES优化调度方法。首先基于静态EH模型,建立一种动态EH(dynamicenergy hub,DEH)模型,可对能源转换设备运行效率进行修正;进而,基于DEH模型,提出了一种考虑设备变工况特性的RIES优化调度方法;最后,针对一个典型的RIES进行优化调度分析。结果表明,该方法由于考虑了设备变工况特性,提高了设备模型准确度,减小了调度方案的成本预测误差,为RIES提供了更为合理且经济的调度方案。Accuracy of the model is one of the key points affecting the operation schemes of the regional integrated energy system(RIES).The efficiencies of energy conversion devices are usually assumed to be constant in the energy hub(EH)model,which may result in unreasonable operation schemes for the RIES.An operation optimization method for RIES that considers part-load performances of the devices is proposed in this paper.Firstly,a dynamic EH(DEH)model is developed for determining the time-varying efficiencies of energy conversion devices.A DEH-based operation optimization method for RIES is then proposed.Finally,the proposed method is applied to a typical RIES.Results demonstrate that the model,by considering the part-load performances of devices,can improve the accuracy and the practicality of the RIES operation scheme.

关 键 词：区域综合能源系统 能源集线器 变工况特性 优化调度 

分 类 号：TM721[电气工程—电力系统及自动化]