|
|
|
| Control Strategy of Micro Grid Converters with Synchronous Generator Characteristic |
| Zhang Yuzhi1, 2, Zhang Hui1, 2, He Dawei1, Su Bing1, Chai Jianyun3 |
1. Xi’an University of Technology Xi’an 710048 China;
2. State Key Laboratory of Electrical Insulation and Power Equipment Xi’an 710049 China;
3. Department of Electrical Engineering,Tsinghua University, Beijing 100084 China |
|
|
|
|
Abstract With the help of energy storage, synchronous generator model used in conventional power system being applied in renewable energy generation is called virtual synchronous generator (VSG) and presented in this paper. Through designing prime motor controller and excitation controller , renewable energy station with VSG can obtain the well-known frequency and voltage drooping mechanisms, and mimics a characteristic of system dynamic performance influenced by rotor inertia. It can solve the problems of low output impedance and low damp on conventional power converter, and improve the stability of renewable power generation system. The simulation and experimental results show that the proposed VSG algorithm is suitable to micro grid.（The simulation and experimental results show that the proposed VSG can simulate the characteristics of real synchronous generator.）
|
|
Received: 22 April 2013
Published: 05 August 2014
|
|
|
|
|
|
[1] Johan Morren, Sjoerd W H, De Haan, et al. Contribution of DG units to primary frequency control[C]. International Conference on Future Power Systems, 2005: 1-6.
[2] A European strategy for sustainable, competitive and secure energy[M]. Brussel:Commission of the European Communities, 2006.
[3] 韦刚, 吴伟力, 胡丹云, 等. 分布式电源及其并网时对电网的影响[J]. 高电压技术, 2007, 30(1): 36-40. Wei Gang, Wu Weili, Hu Danyun, et al. Distributed generation and effects of its parallel operation on power system[J]. High Voltage Engineering, 2007, 30(1): 36-40.
[4] 陈达威, 朱桂萍. 低压微电网中的功率传输特性[J]. 电工技术学报, 2010, 25(7): 117-122. Chen Dawei, Zhu Guiping. Power transmission characteristics of low voltage microgrids[J]. Transactions of China Electrotechnical Society, 2010, 25(7): 117-122.
[5] Majumder R, Ghosh A, Ledwich G, et al. Power management and power flow control with back- to-back converters in a utility connected microgrid[J]. IEEE Transactions on Power Systems, 2010, 25(2): 821-834.
[6] Kroposki B, Lasseter R Ise T, Morozumi S, et al. Making microgrids work[J]. IEEE Power and Energy Magazine, 2008, 6(3): 40-53.
[7] Beck H P, Hesse R. Virtual synchronous machine[C]. The 9th International Conference on Electrical Power Quality and Utilization, 2007: 1-6.
[8] Yang Xiangzhen, Su Jianhui, Ding Ming, et al. Control strategy for virtual synchronous generator in microgrid[C]. The 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies, 2011: 1633-1637.
[9] 丁明, 杨向真, 苏建徽. 基于虚拟同步发电机思想的微电网逆变电源控制策略[J]. 电力系统自动化, 2009, 33(8), 89-93. Ding Ming, Yang Xiangzhen, Su Jianhui. Control strategies of inverters based on virtual synchronous generator in a microgrid[J]. Automation of Electric Power Systems, 2009, 33(8): 89-93.
[10] Farid Katiraei, Reza Iravani, Nikos Hatziargyriou, et al. Microgrids management[J]. IEEE Power and Energy Magazine, 2008, 6(3): 54-65.
[11] Qing Chang Zhong, George Weiss. Static synchronous generators for distributed generation and renewable energy[C]. IEEE/PES Power Systems Conference and Exposition, 2009: 1-6.
[12] 孙宏斌. 电力系统分析[M]. 北京: 清华大学出版社, 2009.
[13] 孙旭东, 王善铭. 电机学[M]. 北京: 清华大学出版社, 2006. |
|
|
|
2014, Vol. 29 
