考虑光伏集群接入容量和位置的配电网安全运行影响评估
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摘要
光伏的规模化接入给配电网的安全运行带来极大的冲击。首先建立光伏集群接入的配电网安全运行评估模型,从理论机理层面分析光伏接入对配电网的运行影响;结合光伏集群接入模式,从光伏接入容量和接入位置两个方面开展研究,分析不同光伏渗透率和接入位置情景下配电网电压和网损的变化规律;最后基于10 kV典型馈线模型开展光伏集群接入的配电网安全运行评估仿真,评估不同光伏集群接入容量和位置对配电网安全运行的影响,为配电网安全运行提供参考。
The large-scale aggregated photovoltaic power generation(PV) poses great challenges to the security operating assessment of distribution system. In this paper, a distribution system security operating assessment model is firstly built and the effects of the aggregated PV on distribution systems operation are theoretically analyzed. Then,based on the connection mode of the aggregated PV,both the penetration rate and location of PV are investigated. The voltage profile and network loss are analyzed under different penetration levels and locations of the aggregated PV. Finally, numerical simulations are implemented on a typical 10 kV feeder and the effects of different penetration rates and locations of aggregated photovoltaic power generation on distribution system operation are assessed for improving the operation level of distribution system with the aggregated PV integration.
The large-scale aggregated photovoltaic power generation(PV) poses great challenges to the security operating assessment of distribution system. In this paper, a distribution system security operating assessment model is firstly built and the effects of the aggregated PV on distribution systems operation are theoretically analyzed. Then,based on the connection mode of the aggregated PV,both the penetration rate and location of PV are investigated. The voltage profile and network loss are analyzed under different penetration levels and locations of the aggregated PV. Finally, numerical simulations are implemented on a typical 10 kV feeder and the effects of different penetration rates and locations of aggregated photovoltaic power generation on distribution system operation are assessed for improving the operation level of distribution system with the aggregated PV integration.
引文
[1]寇凤海.分布式光伏电源对配电网网损的影响[J].电网与清洁能源,2011,27(11):62-68.
[2]王汉华,陈小明.分布式电源渗透率对10 kV配电网运行的影响研究[J].机电工程技术,2018,47(03):159-162.
[3]沈鑫,曹敏.分布式电源并网对于配电网的影响研究[J].电工技术学报,2015(s1):346-351.
[4]常佳蕾.分布式光伏电源接入对配电网影响及并网规划研究[D].北京:华北电力大学,2016.
[5]金卓勍,向铁元,陈红坤,等.考虑电能质量问题的分布式光伏发电接入规划方法[J].电力系统保护与控制,2017,45(9):1-8.
[6]周良学,张迪,黎灿兵,等.考虑分布式光伏电源与负荷相关性的接入容量分析[J].电力系统自动化,2017,41(04):56-61.
[7]李振坤,鲍新雨,邵宇鹰,等.考虑多种调压措施的分布式光伏消纳能力研究[J].电力系统保护与控制,2018,46(8):10-16.
[8]张勇军,张紫珩.考虑电压约束的10kV配电网光伏容量评估[J].电网与清洁能源,2017,33(03):119-124+130.
[9]黄伟,高怡芳,张勇军,等.计及不确定性的分布式光伏接入配电网极限容量评估[J].电力系统保护与控制,2018,46(14):9-16.
[10]邢海军,程浩忠,曾平良,等.基于二阶锥规划的间歇性分布式电源消纳研究[J].电力自动化设备,2016(06):74-80.
[11]陈旭,张勇军,黄向敏.主动配电网背景下无功电压控制方法研究综述[J].电力系统自动化,2016,40(1):143-151.
[12]Agalgaonkar Y P,Pal B C,Jabr R A.Distribution voltage control considering the impact of PV generation on tap changers and autonomous regulators[J].IEEETransactions on Power Systems,2014,29(1):182-192.
[13]肖传亮,赵波,周金辉,等.配电网中基于网络分区的高比例分布式光伏集群电压控制[J].电力系统自动化,2017,41(21):147-155.
[14]窦晓波,常莉敏,倪春花,等.面向分布式光伏虚拟集群的有源配电网多级调控[J].电力系统自动化,2018,42(03):21-31.
[15]Rafi F H M,Hossain M J,Lu J.Hierarchical controls selection based on PV penetrations for voltage rise mitigation in a LV distribution network[J].International Journal of Electrical Power&Energy Systems,2016,81:123-139.
[2]王汉华,陈小明.分布式电源渗透率对10 kV配电网运行的影响研究[J].机电工程技术,2018,47(03):159-162.
[3]沈鑫,曹敏.分布式电源并网对于配电网的影响研究[J].电工技术学报,2015(s1):346-351.
[4]常佳蕾.分布式光伏电源接入对配电网影响及并网规划研究[D].北京:华北电力大学,2016.
[5]金卓勍,向铁元,陈红坤,等.考虑电能质量问题的分布式光伏发电接入规划方法[J].电力系统保护与控制,2017,45(9):1-8.
[6]周良学,张迪,黎灿兵,等.考虑分布式光伏电源与负荷相关性的接入容量分析[J].电力系统自动化,2017,41(04):56-61.
[7]李振坤,鲍新雨,邵宇鹰,等.考虑多种调压措施的分布式光伏消纳能力研究[J].电力系统保护与控制,2018,46(8):10-16.
[8]张勇军,张紫珩.考虑电压约束的10kV配电网光伏容量评估[J].电网与清洁能源,2017,33(03):119-124+130.
[9]黄伟,高怡芳,张勇军,等.计及不确定性的分布式光伏接入配电网极限容量评估[J].电力系统保护与控制,2018,46(14):9-16.
[10]邢海军,程浩忠,曾平良,等.基于二阶锥规划的间歇性分布式电源消纳研究[J].电力自动化设备,2016(06):74-80.
[11]陈旭,张勇军,黄向敏.主动配电网背景下无功电压控制方法研究综述[J].电力系统自动化,2016,40(1):143-151.
[12]Agalgaonkar Y P,Pal B C,Jabr R A.Distribution voltage control considering the impact of PV generation on tap changers and autonomous regulators[J].IEEETransactions on Power Systems,2014,29(1):182-192.
[13]肖传亮,赵波,周金辉,等.配电网中基于网络分区的高比例分布式光伏集群电压控制[J].电力系统自动化,2017,41(21):147-155.
[14]窦晓波,常莉敏,倪春花,等.面向分布式光伏虚拟集群的有源配电网多级调控[J].电力系统自动化,2018,42(03):21-31.
[15]Rafi F H M,Hossain M J,Lu J.Hierarchical controls selection based on PV penetrations for voltage rise mitigation in a LV distribution network[J].International Journal of Electrical Power&Energy Systems,2016,81:123-139.