中国电力 ›› 2022, Vol. 55 ›› Issue (9): 29-37.DOI: 10.11930/j.issn.1004-9649.202207028

• 碳中和背景下农业农村综合能源系统 • 上一篇    下一篇

考虑热泵负荷和分布式光伏的配微网协调调度

李世辉1, 王琪2, 贾晓卜1, 吴文传2, 梁华洋1, 朱琳2   

  1. 1. 国网河北省电力有限公司,河北 石家庄 050021;
    2. 清华大学 电机工程与应用电子技术系,北京 100084
  • 收稿日期:2022-07-14 修回日期:2022-08-08 出版日期:2022-09-28 发布日期:2022-09-20
  • 作者简介:李世辉(1981—),男,高级工程师,从事电网调度运行研究,E-mail:13653383373@139.com;王琪(1998—),男,通信作者,博士研究生,从事输配微网协同运行优化研究,E-mail:wangq19@mails.tsinghua.edu.cn;贾晓卜(1985—),男,高级工程师,从事电网优化调度研究,E-mail:jia _ xiao _ bo@163.com;吴文传(1973—),男,教授,博士生导师,IEEE Fellow,从事主动配电网的运行与控制研究,E-mail:wuwench@tsinghua.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(U2066601);国网河北省电力公司科技项目(数字化主动配电网风险调度与分布式资源智能控制关键技术研究,SGHE0000DKJS2000637)

Coordinated Scheduling of Distribution Networks and Microgrids Considering Heat Pump Load and Distributed Photovoltaic

LI Shihui1, WANG Qi2, JIA Xiaobo1, WU Wenchuan2, LIANG Huayang1, ZHU Lin2   

  1. 1. State Grid Hebei Electric Power Co., Ltd., Shijiazhuang 050021, China;
    2. Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2022-07-14 Revised:2022-08-08 Online:2022-09-28 Published:2022-09-20
  • Supported by:
    This work is supported by the National Natural Science Foundation of China (No.U2066601), the Science and Technology Project of State Grid Hebei Electric Power Co., Ltd. (Risk Dispatch and Distributed Resource Intelligent Control in Digital Active Distribution Network, No.SGHE0000DKJS2000637).

摘要: 随着农村清洁供热改造以及城镇分布式光伏建设的不断推进,配电网中出现了大量农村微电网。分布式光伏的强随机性和波动性给电网的运行调控带来了诸多挑战,电网面临剧烈的潮流波动和严重的电压越限等问题。首先,构建了计及热泵、光伏和储能的配微网分解协调模型,其中热泵用等效状态空间模型描述;然后,提出一种配微网有功无功协调优化方法,并采用改进的Benders分解算法进行求解;最后,在D141-M4算例系统上进行了算例测试。测试结果表明,所提方法可以在保证用户舒适度的前提下,有效降低电网峰值负荷,并提升电压安全水平。

关键词: 配微网协调优化, 农村微电网, 热泵, 分布式光伏, 电压优化, Benders分解

Abstract: With the progress of the transformation of rural clean heating and the construction of urban distributed photovoltaics, a large number of rural microgrids have appeared in the distribution networks. However, the strong randomness and volatility of distributed photovoltaics also bring many challenges to the operation of the power systems and make the power grids face such problems as severe power flow fluctuations and voltage violations. Firstly, a decomposition and coordination model is constructed for distribution networks and microgrids considering heat pumps, photovoltaics and energy storage systems , in which the heat pumps are described by the equivalent state space model. Subsequently, an improved Benders decomposition algorithm is proposed to solve the active and reactive power coordination problem of distribution networks and microgrids. Finally, numerical tests are carried out on the D141-M4 system, which has verified the validity of the proposed method in reducing the peak load and alleviating voltage violations on the premise of ensuring the users' comfort.

Key words: coordinated optimization of distribution networks and microgrids, rural microgrid, heat pump, distributed photovoltaic, voltage optimization, Benders decomposition