摘要
提出一种考虑配网功率约束及可靠供暖的园区蓄热式电采暖双层优化配置方法。首先,基于园区内不同楼宇用热特性,建立基于RC网络的单体房间-单体楼宇-楼宇群的三级热负荷预测模型,并对蓄热式电采暖系统设备建模;同时,建立考虑配电网传输功率约束模型及停电时段的供暖负荷模型;最后,以经济性为目标,以配电网传输功率限制、故障态下"停电不停暖"为约束,构建一种考虑配电网传输功率约束及可靠供暖的蓄热式电采暖双层优化配置方法,上层以蓄热式电采暖年总成本最小为目标,求解电采暖系统设备容量,下层以用户年运行成本最小为目标,求解电采暖系统运行方案。算例结果表明,所提方法可在考虑配电网功率约束的情况下,降低配电网负荷峰谷差及用电同时率,同时能够基于蓄热式电采暖的蓄热量,实现"停电不停暖",有效提升配电网运行安全性及用户供暖可靠性。
A bi-level optimal planning method for park regenerative electric heating considering distribution network capacity and reliable heating is proposed.First,based on the heat characteristics of different buildings in the park,a threelevel heat load prediction model of single room-single buildingbuilding group based on the RC network is established,and the regenerative electric heating system equipment is modeled.At the same time,a heating load model that considers the distribution network transmission power constraint model and the power outage period is established.Finally,with economy as the goal,with the distribution network transmission power limit and the maintenance of heating supply under power outage as constraints,a bi-level optimal planning model of regenerative electric heating is constructed,the first level of which is to minimize the annual total cost,and the second level takes the annual operation and maintenance cost as the goal.The case results demonstrate that the proposed method can not only reduce the peak-valley load difference and load coincidence factor of the distribution network but also achieve the goal of maintaining the heating supply under a power outage,based on the heat storage capacity of regenerative electric heating.
作者
张嘉睿
陈晚晴
张雅青
穆云飞
李树鹏
于建成
ZHANG Jiarui;CHEN Wanqing;ZHANG Yaqing;MU Yunfei;LI Shupeng;YU Jiancheng(Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Nankai District,Tianjin 300072,China;State Grid Tianjin Electric Power Company,Hebei District,Tianjin 300010,China)
出处
《全球能源互联网》
CSCD
2021年第2期142-152,共11页
Journal of Global Energy Interconnection
基金
国家电网公司科技项目(蓄热式电采暖优化配置及互动关键技术研究与应用,SGTJDK00DWJS1900101)
关键词
蓄热式电采暖
配电网承载能力
停电不停暖
用电同时率
优化配置
regenerative electric heating
distribution network capacity
maintenance heating supply under power outage
load coincidence factor
optimal planning
作者简介
张嘉睿(1995),男,博士研究生,主要研究方向为综合能源集成与应用,E-mail:jerry_zhang@tju.edu.cn;陈晚晴(1996),女,硕士,主要研究方向为综合能源集成与应用,E-mail:675673672@qq.com;通信作者:穆云飞(1984),男,博士,教授,主要研究方向为电力系统安全性与稳定性、综合能源集成与应用。E-mail:yunfeimu@tju.edu.cn。
