考虑微电网接入下的配电网优化规划
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摘要
在能源紧缺、污染严重的时代背景下,分布式电源迅速普及。含分布式电源的配电网规划研究日益增多,而将分布式电源以微电网的形式考虑到配电网规划之中还鲜有研究。将不同类型的分布式电源、储能装置以微电网的形式接入配电网,充分考虑微电网加入对变电站规划和网架规划产生的影响。基于微电网系统模型,分别建立配电网规划中变电站选址定容模型及网架规划模型,利用改进粒子群算法求解上述两个多目标非线性化模型,并计算由微电网带来的变电站容量削减量及配电网故障时的可避免停电损失费用。以IEEE50节点为算例验证此模型,算例验证了所提模型有利于提高系统的可靠性和经济性,优化了网架结构,具有实际工程参考意义。
Under the background of energy shortage and severe pollution,the distributed generations spread rapidly. The study of the distribution network planning with distributed generations is also increasing. However,little research has been done into the study that is the planning of distribution network with distributed generations which are in the form of microgrid. In this paper,different types of distributed generations and energy storing device are connected to the distribution network in the form of micro-grid. And the influence which is created as the micro-grid joins on the planning of substation and the network is fully considered. Model of substation locating and sizing and network planning is respectively established based on model of micro-grid system. The foregoing multi-objective nonlinear models are solved by using the improved particle swarm algorithm. In addition,the reduction of substation capacity and the interruption cost which can be avoided during the fault of distribution network that are both caused by micro-grid are calculated. Finally,IEEE50-node example is used to verify that the proposed model is in favor of improving the reliability and economy of the system. And it is also good for structure of the network. The model in this paper has practical engineering significance.
Under the background of energy shortage and severe pollution,the distributed generations spread rapidly. The study of the distribution network planning with distributed generations is also increasing. However,little research has been done into the study that is the planning of distribution network with distributed generations which are in the form of microgrid. In this paper,different types of distributed generations and energy storing device are connected to the distribution network in the form of micro-grid. And the influence which is created as the micro-grid joins on the planning of substation and the network is fully considered. Model of substation locating and sizing and network planning is respectively established based on model of micro-grid system. The foregoing multi-objective nonlinear models are solved by using the improved particle swarm algorithm. In addition,the reduction of substation capacity and the interruption cost which can be avoided during the fault of distribution network that are both caused by micro-grid are calculated. Finally,IEEE50-node example is used to verify that the proposed model is in favor of improving the reliability and economy of the system. And it is also good for structure of the network. The model in this paper has practical engineering significance.
引文
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[9]朱兰,严正,杨秀,等.风光储微网系统蓄电池容量优化配置方法研究[J].电网技术,2012,36(12):26-31.Zhu Lan,Yan Zheng,Yang Xiu,et al.Optimal Configuration of Battery Capacity in Microgrid Composed of Wind Power and Photovoltaic Generation With Energy Storage[J].Power System Technology,2012,36(12):26-31.
[10]Tang W,Zhang Y J A.Optimal battery energy storage system control in microgrid with renewable energy generation[C].IEEE International Conference on Smart Grid Communications,2015:846-851.
[11]彭文,杜晓东,石敏.基于负荷区域划分的配电变电站规划模型[J].电力自动化设备,2015,35(1):112-117.Peng Wen,Du Xiaodong,Shi Min.Distribution substation planning model based on load region division[J].Electric Power Automation E-quipment,2015,35(1):112-117.
[12]李振坤,岳美,胡荣,等.计及分布式电源与可平移负荷的变电站优化规划[J].中国电机工程学报,2016,36(18):4883-4893.Li Zhenkun,Yue Mei,Hu Rong,et al.Optimal Planning of Substation Considering Distributed Generation and Shiftable Loads[J].Proceedings of the CSEE,2016,36(18):4883-4893.
[13]赵会茹,李娜娜,郭森,等.配电网设备故障停电风险实时评估[J].电力自动化设备,2014,34(11):89-94.Zhao Huiru,Li Nana,Guo Sen,et al.Real-time risk assessment on equipment failure outage of distribution network[J].Electric Power Automation Equipment,2014,34(11):89-94.
[14]汤红卫.基于GIS的农村电网规划方法的研究[D].北京:中国农业大学,2001.Tang Hongwei.Study on the Method of Rural Power System Planning Based on GIS[D].Beijing:China Agricultural University,2001.
[2]Ochoa L F,Dent C J,Harrison G P.Distribution Network Capacity Assessment:Variable DG and Active Networks[J].IEEE Transactions on Power Systems,2010,25(1):87-95.
[3]梅红兴,程浩忠,王宸,等.主动配电网中分布式电源优化配置[J].电力系统及其自动化学报,2016,28(11):1-8.Mei Hongxing,Cheng Haozhong,Wang Chen,et al.Optimal Allocation of Distributed Generation in Active Distribution Network[J].Proceedings of the CSU-EPSA,2016,28(11):1-8.
[4]戴上,张焰,祝达康.含有微电网的配电网规划方法[J].电力系统自动化,2010,34(22):41-45.Dai Shang,Zhang Yan,Zhu Dakang.Distribution Network Planning Method Containing Micro-grid[J].Automation of Electric Power Systems,2010,34(22):41-45.
[5]葛少云,王世举,路志英,等.基于分布式电源置信容量评估的变电站规划方法[J].电力系统自动化,2015,(19):61-67.Ge Shaoyun,Wang Shiju,Lu Zhiying,et al.Substation Optimization Planning Method Based on Capacity Credit Evaluation of Distributed Generator[J].Automation of Electric Power Systems,2015,(19):61-67.
[6]钟清,孙闻,余南华,等.配电网规划中的负荷预测与发电预测[J].中国电机工程学报,2014,(19):3050-3056.Zhong Qing,Sun Wen,Yu Nanhua,et al.Load and Power Forecasting in Active Distribution Network Planning[J].Proceedings of the CSEE,2014,(19):3050-3056.
[7]凡鹏飞,张粒子,熊浩清,等.基于改进BCC算法的含微电网的配电网网架规划[J].电力系统保护与控制,2012,40(10):12-18.Fan Pengfei,Zhang Lizi,Xiong Haoqing,et al.Distribution network planning containing micro-grid based on improved bacterial colony chemotaxis algorithm[J].Power System Protection and Control,2012,40(10):12-18.
[8]Wang Z,Yang K,Wang X.Privacy-Preserving Energy Scheduling in Microgrid Systems[J].IEEE Transactions on Smart Grid,2013,4(4):1810-1820.
[9]朱兰,严正,杨秀,等.风光储微网系统蓄电池容量优化配置方法研究[J].电网技术,2012,36(12):26-31.Zhu Lan,Yan Zheng,Yang Xiu,et al.Optimal Configuration of Battery Capacity in Microgrid Composed of Wind Power and Photovoltaic Generation With Energy Storage[J].Power System Technology,2012,36(12):26-31.
[10]Tang W,Zhang Y J A.Optimal battery energy storage system control in microgrid with renewable energy generation[C].IEEE International Conference on Smart Grid Communications,2015:846-851.
[11]彭文,杜晓东,石敏.基于负荷区域划分的配电变电站规划模型[J].电力自动化设备,2015,35(1):112-117.Peng Wen,Du Xiaodong,Shi Min.Distribution substation planning model based on load region division[J].Electric Power Automation E-quipment,2015,35(1):112-117.
[12]李振坤,岳美,胡荣,等.计及分布式电源与可平移负荷的变电站优化规划[J].中国电机工程学报,2016,36(18):4883-4893.Li Zhenkun,Yue Mei,Hu Rong,et al.Optimal Planning of Substation Considering Distributed Generation and Shiftable Loads[J].Proceedings of the CSEE,2016,36(18):4883-4893.
[13]赵会茹,李娜娜,郭森,等.配电网设备故障停电风险实时评估[J].电力自动化设备,2014,34(11):89-94.Zhao Huiru,Li Nana,Guo Sen,et al.Real-time risk assessment on equipment failure outage of distribution network[J].Electric Power Automation Equipment,2014,34(11):89-94.
[14]汤红卫.基于GIS的农村电网规划方法的研究[D].北京:中国农业大学,2001.Tang Hongwei.Study on the Method of Rural Power System Planning Based on GIS[D].Beijing:China Agricultural University,2001.