考虑多种约束的分布式电源最大渗透率计算方法
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摘要
针对分布式电源接入配电网的最大渗透率计算问题,根据我国现有传统配电网一次系统的技术要求,从规划设计角度出发,通过综合考虑配电线路输送容量约束、主变压器容量约束、节点电压约束和母线短路电流约束,提出了一种分布式电源最大渗透率综合计算模型和求解方法,分析极端情况下配电线路和主变压器供电区域内可接入的分布式电源的最大渗透率,从而确保在配电一次设备安全运行的前提下,获得分布式电源可接入的最大容量及其接入条件。最后通过算例对所提方法进行了验证和分析。
Aiming at the problem of calculating the maximum penetration of the access of distributed generations to distribution network,a comprehensive calculation model and its solving method for the maximum penetration of distributed generations are proposed with the consideration of constraints on the distribution line transmission capacity,main transformer capacity,bus voltage and bus short-circuit current. This model is in accordance with the technical requirements for the primary system in the traditional distribution network in China and starts from aspects of planning and design,and it is used to analyze the maximum penetration of distributed generations in power supply regions of distribution lines and main transformer in the extreme cases. In this way,the maximum capacities and the corresponding access conditions are obtained on the premise of ensuring the safe operation of the primary equipment in distribution network.Finally,the proposed method is verified and analyzed through a numerical example.
Aiming at the problem of calculating the maximum penetration of the access of distributed generations to distribution network,a comprehensive calculation model and its solving method for the maximum penetration of distributed generations are proposed with the consideration of constraints on the distribution line transmission capacity,main transformer capacity,bus voltage and bus short-circuit current. This model is in accordance with the technical requirements for the primary system in the traditional distribution network in China and starts from aspects of planning and design,and it is used to analyze the maximum penetration of distributed generations in power supply regions of distribution lines and main transformer in the extreme cases. In this way,the maximum capacities and the corresponding access conditions are obtained on the premise of ensuring the safe operation of the primary equipment in distribution network.Finally,the proposed method is verified and analyzed through a numerical example.
引文
[1]范明天,张祖平,苏傲雪,等(Fan Mingtian,Zhang Zuping,Su Aoxue,et al).主动配电系统可行技术的研究(Enabling technologies for active distribution systems)[J].中国电机工程学报(Proceedings of the CSEE),2013,33(22):12-18.
[2]龚思宇,魏炜,徐元孚,等(Gong Siyu,Wei Wei,Xu Yuanfu,et al).面向分布式电源最大消纳的配电网重构(Reconfiguration of distribution network for the maximum consumption of distributed generations)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2017,29(3):7-11,41.
[3]胡骅,吴汕,夏翔,等(Hu Hua,Wu Shan,Xia Xiang,et al).考虑电压调整约束的多个分布式电源准入功率计算(Computing the maximum penetration level of multiple distributed generators in distribution network taking into account voltage regulation constraints)[J].中国电机工程学报(Proceedings of the CSEE),2006,26(19):13-17.
[4]苏小玲,韩民晓,赵正奎,等(Su Xiaoling,Han Minxiao,Zhao Zhengkui,et al).配电网中分布式电源最大准入容量分析(Research on maximum capacity of grid-connected distributed generation in distribution network)[J].电网技术(Power System Technology),2012,36(10):87-92.
[5]赵珊珊,盛万兴,孟晓丽,等(Zhao Shanshan,Sheng Wanxing,Meng Xiaoli,et al).分析电压质量对分布式电源渗透率影响的多分辨率模型与方法(Multi-resolution model and methodology for analyzing the impact of voltage quality on maximum penetration level of distributed generation)[J].中国电机工程学报(Proceedings of the CSEE),2015,35(6):1306-1313.
[6] Ayres H M,Freitas W,de Almeida M C,et al. Method for determining the maximum allowable penetration level of distributed generation without steady-state voltage violations[J]. IET Generation,Transmission&Distribution,2010,4(4):495-508.
[7]雷金勇,黄伟,夏翔,等(Lei Jinyong,Huang Wei,Xia Xiang,et al).考虑相间短路影响的分布式电源准入容量计算(Penetration level calculation with considerations of phase-to-phase short circuit fault)[J].电力系统自动化(Automation of Electric Power Systems),2008,32(3):82-86.
[8]王江海,邰能灵,宋凯,等(Wang Jianghai,Tai Nengling,Song Kai,et al).考虑继电保护动作的分布式电源在配电网中的准入容量研究(Penetration level permission of for DG in distributed network considering relay protection)[J].中国电机工程学报(Proceedings of the CSEE),2010,30(22):37-43.
[9]陶顺,郭静,肖湘宁(Tao Shun,Guo Jing,Xiao Xiangning).基于电流保护原理的DG准入容量与并网位置分析(Analysis on allowed penetration level of distributed generation and its grid-connected position based on principles of current protection)[J].电网技术(Power System Technology),2012,36(1):265-270.
[10]施琳,罗毅,施念,等(Shi Lin,Luo Yi,Shi Nian,et al).高渗透率风电–储能孤立电网控制策略(A control strategy of isolated grid with high penetration of wind and energy storage systems)[J].中国电机工程学报(Proceedings of the CSEE),2013,33(16):78-85.
[11] Kuroda K,Ichimura T,Magori H,et al. A new approach for optimal location and sizing of distributed generation using an exact solution method[C]//ICSGCE. Hong Kong,China,2012.
[12]黑田健,马郡英树,横山隆一,等(Ken Kuroda,Hideki Magori,Ryuichi Yokoyama,et al).考虑电力系统低碳效益的配电网分布式发电系统最优配置方法(Optimal allocation of dispersed generations in distribution networks to realize low-carbonate power system)[J].电网技术(Power System Technology),2012,36(12):1-10.
[13] Taylor C W.电力系统电压稳定[M].王伟胜译.北京:中国电力出版社,2002.
[14] GB/T 19963—2011风电场接入电力系统技术规定[S].
[15] Q/GDW 667—2011分布式电源接入配电网运行控制规范[S].
[16] GB/T 12325—2008电能质量供电电压偏差[S].
[2]龚思宇,魏炜,徐元孚,等(Gong Siyu,Wei Wei,Xu Yuanfu,et al).面向分布式电源最大消纳的配电网重构(Reconfiguration of distribution network for the maximum consumption of distributed generations)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2017,29(3):7-11,41.
[3]胡骅,吴汕,夏翔,等(Hu Hua,Wu Shan,Xia Xiang,et al).考虑电压调整约束的多个分布式电源准入功率计算(Computing the maximum penetration level of multiple distributed generators in distribution network taking into account voltage regulation constraints)[J].中国电机工程学报(Proceedings of the CSEE),2006,26(19):13-17.
[4]苏小玲,韩民晓,赵正奎,等(Su Xiaoling,Han Minxiao,Zhao Zhengkui,et al).配电网中分布式电源最大准入容量分析(Research on maximum capacity of grid-connected distributed generation in distribution network)[J].电网技术(Power System Technology),2012,36(10):87-92.
[5]赵珊珊,盛万兴,孟晓丽,等(Zhao Shanshan,Sheng Wanxing,Meng Xiaoli,et al).分析电压质量对分布式电源渗透率影响的多分辨率模型与方法(Multi-resolution model and methodology for analyzing the impact of voltage quality on maximum penetration level of distributed generation)[J].中国电机工程学报(Proceedings of the CSEE),2015,35(6):1306-1313.
[6] Ayres H M,Freitas W,de Almeida M C,et al. Method for determining the maximum allowable penetration level of distributed generation without steady-state voltage violations[J]. IET Generation,Transmission&Distribution,2010,4(4):495-508.
[7]雷金勇,黄伟,夏翔,等(Lei Jinyong,Huang Wei,Xia Xiang,et al).考虑相间短路影响的分布式电源准入容量计算(Penetration level calculation with considerations of phase-to-phase short circuit fault)[J].电力系统自动化(Automation of Electric Power Systems),2008,32(3):82-86.
[8]王江海,邰能灵,宋凯,等(Wang Jianghai,Tai Nengling,Song Kai,et al).考虑继电保护动作的分布式电源在配电网中的准入容量研究(Penetration level permission of for DG in distributed network considering relay protection)[J].中国电机工程学报(Proceedings of the CSEE),2010,30(22):37-43.
[9]陶顺,郭静,肖湘宁(Tao Shun,Guo Jing,Xiao Xiangning).基于电流保护原理的DG准入容量与并网位置分析(Analysis on allowed penetration level of distributed generation and its grid-connected position based on principles of current protection)[J].电网技术(Power System Technology),2012,36(1):265-270.
[10]施琳,罗毅,施念,等(Shi Lin,Luo Yi,Shi Nian,et al).高渗透率风电–储能孤立电网控制策略(A control strategy of isolated grid with high penetration of wind and energy storage systems)[J].中国电机工程学报(Proceedings of the CSEE),2013,33(16):78-85.
[11] Kuroda K,Ichimura T,Magori H,et al. A new approach for optimal location and sizing of distributed generation using an exact solution method[C]//ICSGCE. Hong Kong,China,2012.
[12]黑田健,马郡英树,横山隆一,等(Ken Kuroda,Hideki Magori,Ryuichi Yokoyama,et al).考虑电力系统低碳效益的配电网分布式发电系统最优配置方法(Optimal allocation of dispersed generations in distribution networks to realize low-carbonate power system)[J].电网技术(Power System Technology),2012,36(12):1-10.
[13] Taylor C W.电力系统电压稳定[M].王伟胜译.北京:中国电力出版社,2002.
[14] GB/T 19963—2011风电场接入电力系统技术规定[S].
[15] Q/GDW 667—2011分布式电源接入配电网运行控制规范[S].
[16] GB/T 12325—2008电能质量供电电压偏差[S].