考虑热泵负荷和分布式光伏的配微网协调调度  

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

作　　者：李世辉 王琪[2] 贾晓卜 吴文传[2] 梁华洋 朱琳 LI Shihui;WANG Qi;JIA Xiaobo;WU Wenchuan;LIANG Huayang;ZHU Lin(State Grid Hebei Electric Power Co.,Ltd.,Shijiazhuang 050021,China;Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[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

出　　处：《中国电力》2022年第9期29-37,共9页Electric Power

基　　金：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)。

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。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.

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 

分 类 号：TM73[电气工程—电力系统及自动化]