• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2021, Vol. 42 ›› Issue (4): 59-68.doi: 10.12204/j.issn.1000-7229.2021.04.007

• 智能电网 • 上一篇    下一篇

考虑温控负荷聚合功率不确定性的楼宇微网鲁棒优化

华光辉1, 李晨2, 张勇3, 李丹4, 刘创5, 王程5   

  1. 1.新能源与储能运行控制国家重点实验室(中国电力科学研究院有限公司),南京市 210003
    2.国家电力调度控制中心,北京市 100031
    3.国网河北省电力有限公司,石家庄市 050024
    4.国家电网有限公司直流建设分公司,北京市 100052
    5.华北电力大学电气与电子工程学院,北京市 102206
  • 收稿日期:2020-07-29 出版日期:2021-04-01 发布日期:2021-03-30
  • 作者简介:华光辉 (1983),男,硕士,高级工程师,从事新能源发电并网运行控制、分布式发电与储能应用、区域综合能源协调控制技术研究|李晨 (1983),男,硕士,高级工程师,主要研究方向为配电网运行控制管理|张勇 (1976),男,硕士,高级工程师,主要研究方向为电网调度与运行管理|李丹 (1984),女,硕士,工程师,主要研究方向为电力系统的直流输电技术|刘创 (1994),男,硕士研究生,从事电热综合能源系统的优化调度运行研究|王程 (1990),男,博士,副教授,从事综合能源系统、能源互联网、新能源电力系统、鲁棒调度控制、不确定性分析、风险分析等方面的研究
  • 基金资助:
    国家电网有限公司科技项目(SGHE0000DKJS1900094)

Robust Optimization of Building Microgrid Considering the Uncertainty of the Aggregated Power of Thermostatically Controlled Loads

HUA Guanghui1, LI Chen2, ZHANG Yong3, LI Dan4, LIU Chuang5, WANG Cheng5   

  1. 1. State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems(China Electric Power Research Institute),Nanjing 210003, China
    2. National Power Dispatching and Control Center, Beijing 100031, China
    3. State Grid Hebei Electric Power Co., Ltd., Shijiazhuang 050024, China
    4. State Grid DC Engineering Construction Company, Beijing 100052, China
    5. School of Electrical and Electronic Engineering, North China Electrical Power University, Beijing 102206, China
  • Received:2020-07-29 Online:2021-04-01 Published:2021-03-30
  • Supported by:
    State Grid Corporation of China Research Program(SGHE0000DKJS1900094)

摘要:

随着集成楼宇微网系统的快速发展,温控负荷(thermostatically controlled loads, TCLs)逐渐成为重要的需求响应资源,然而其分布的分散性和响应的不确定性也对集成楼宇微网的调控提出更高的要求。针对TCLs的分布分散特性,文章提出了一种基于楼宇热阻热容(resistance-capacitance, RC)模型的TCLs聚合方案。该方案在对楼宇RC传热模型进行线性化处理后,依据大数定律实现TCLs聚合,可充分计及楼宇建筑的物理结构参数,不但能适应楼宇建筑的差异化建模需求,且方案的计算效率较高。基于此TCLs聚合方案,文章建立了一种适用于集成楼宇微网系统的两阶段鲁棒优化模型,分别对TCLs聚合功率和分布式可再生能源出力的不确定性进行建模,并采用列和约束生成算法进行求解。算例结果表明,所提TCLs聚合方案在各种室外温度和光照强度下都能满足微网调度决策的精度要求;同时,所建立的两阶段鲁棒优化模型能有效减少实际运行下的联络线功率调整量,增强微网系统运行的稳定性和鲁棒性。

关键词: 智能楼宇微网, 温控负荷聚合, 不确定性, 鲁棒优化

Abstract:

With the rapid development of microgrid systems with multiple intelligent buildings integrated, thermostatically controlled loads (TCLs) have gradually become an important demand-response resource. However, its distribution dispersion and response uncertainty also put forward higher requirements for the regulation. To address the distribution dispersion of TCLs, this paper puts forward a TCLs aggregation scheme based on the building's resistance-capacitance (RC) model. Specifically, the RC heat transfer model is linearized at first, and then the TCLs are aggregated according to the law of large numbers, thence the building's physical structural parameters can be taken into account. This TCLs aggregation scheme not only adapts to the differentiated modeling requirements of buildings but also has preferable calculation efficiency. On the basis of the proposed TCLs aggregation scheme, a two-stage robust optimization model applicable to the integrated building microgrid system is established, which considers the uncertainties of aggregated TCLs and distributed renewable generators, and is solved by the column and constraint generation algorithm. Results show that the proposed TCLs aggregation scheme can reach the accuracy requirements of microgrid scheduling operation under diverse outdoor temperatures and solar radiation. Meanwhile, the established two-stage robust optimization model can effectively reduce the power regulation of tie lines under real circumstances, thence enhancing the stability and robustness of the microgrid system.

Key words: microgrid with buildings, aggregated thermostatically controlled load, uncertainty, robust optimization

中图分类号: