微电网孤岛运行故障分析
Fault Analysis of Isolated Island Operation of Micro-Grid
DOI: 10.12677/JEE.2016.41007, PDF, HTML, XML, 下载: 2,150  浏览: 5,973 
作者: 蒋骏杰, 居 荣：南京师范大学电气与自动化工程学院，江苏 南京
关键词: 微电网；PQ控制策略；VF控制策略；等值模型；数值分析；Micro-Grid； PQ Control Strategy； VF Control Strategy； Equivalent Model； Mathematical Analysis
摘要: 微电网系统是分布式发电系统的新发展方向。本文针对微电网故障问题，首先分析了PQ与VF控制逆变器的运行特点，建立了基于逆变器控制策略的数学模型，并且推导了故障临界条件。结合微电网并网以及孤岛运行时的工作特点，利用故障时的节点电压与电流，推导出了微电网在故障运行时候的电压与电流求解方程，并以此建立了故障分析方法。最后利用PSCAD建立了380 V低压电力系统孤岛运行的仿真系统，验证了所述方法的正确性。
Abstract: Micro-grid system is a new development direction of distributed generation system. In this paper, the operation characteristics of PQ and VF control inverter are analyzed, the mathematical model is established based on the control strategy of inverter, and the critical condition of the fault is derived. According to the working characteristics of the micro-grid in grid connected operation and islanded operation, by using the node voltages and currents in fault condition, micro-grid voltage and current equations in the run time are derived, and the fault analysis method is established. At last, by using the PSCAD, a simulation system of isolated island operation of low voltage of 380 V is built, testing the validity of the proposed method.
文章引用：蒋骏杰, 居荣. 微电网孤岛运行故障分析[J]. 电气工程, 2016, 4(1): 44-54. http://dx.doi.org/10.12677/JEE.2016.41007

参考文献

[1] 王成山, 武震, 李鹏. 微电网关键技术研究[J]. 电工技术学报, 2014, 29(2): 1-12.
[2] Davis, G. (2003) Concept of Microgird. Consultant of Reports of CERTS Progam Office Lawrence Berkeley National Laboratory.
[3] Peas Lopes, J.A., Moreira, C.L. and Madureira, A.G. (2005) Defining Control Strategies for Analysing Microgrids Islanded Operation. 2005 IEEE Russia Power Tech, St. Petersburg, 27-30 June 2005, 1-7.
[4] 王成山, 孙晓倩. 含分布式电源配电网短路计算的改进方法[J]. 电力系统自动化, 2012, 36(23): 54-58.
[5] 贾清泉, 孙玲玲, 王美娟, 杨威. 基于节点搜索的微电网自适应保护方法[J]. 中国电机工程学报, 2014(10): 1650-1657.
[6] 王守相, 江兴月, 王成山. 含分布式电源的配电网故障分析叠加法[J]. 电力系统自动化, 2008, 32(5): 38-42.
[7] 吴争荣, 王钢, 李海锋, 潘国清, 高翔. 计及逆变型分布式电源控制特性的配电网故障分析方法[J]. 电力系统自动化, 2012, 36(18): 92-96+108.
[8] 吴争荣, 王钢, 李海锋, 潘国清, 高翔. 含分布式电源配电网的相间短路故障分析[J]. 中国电机工程学报, 2013, 33(1): 130-136.
[9] 潘国清. 含PQ控制逆变型分布式电源的配电网故障分析[D]: [硕士学位论文]. 广州: 华南理工大学, 2014.
[10] Barsali, S., Ceraolo, M., Pelacchi, P. and Poli, D. (2002) Control Techniques of Dispersed Generators to Improve the Continuity of Electricity Supply. 2002 IEEE Power Engineering Society Winter Meeting, 2, 789-794.
http://dx.doi.org/10.1109/PESW.2002.985115
[11] 曾德辉, 潘国清, 王钢, 朱革兰, 蔡颖倩. 含V/f控制DG的微电网故障分析方法[J]. 中国电机工程学报, 2014(16): 2604-2611.
[12] 李中洲. 含逆变电源微电网的稳态故障分析研究[D]: [博士学位论文]. 天津: 天津大学, 2012.