Abstract：Excitation system based on full controlled devices converter has not only the ability of ordinary excitation system but can also supply more damping to the synchronous generator and increase the stability of power system through injecting reactive current to the grid. This paper first analyzes the basics principle of excitation system based on full controlled, and deduced the theory how the injected reactive current in the terminal affects the damping of the system. The research shows that after injecting proper recative current will finally increse the system’s damping and the effect is mainly depended on the capacity of the compensation system and the parameters of and the openation condition of the current system. This paper also designs the control strategy of voltage source converter excitation system based on full controlled devices, using three phase full bridge PWM converter as exciter. The simulation results show that, this kind of voltage source converter excitation system can supply more damping to system through another way, and also increase the stability of the generator. The larger capacity of the compensation system, the more damping there will be.
何金平, 毛承雄, 陆继明, 王丹, 杨嘉伟. 电压源型全控器件励磁控制策略[J]. 电工技术学报, 2012, 27(12): 240-247.
He Jinping, Mao Chengxiong, Lu Jiming, Wang Dan, Yang Jiawei. Control Strategy of Voltage Source Converter Excitation System Based on Full Controlled Devices. Transactions of China Electrotechnical Society, 2012, 27(12): 240-247.
[1] 刘取. 电力系统稳定性及发电机励磁控制[M]. 北京: 中国电力出版社, 2007. [2] 陆继明, 毛承雄, 范澍, 等. 同步发电机微机励磁控制[M]. 北京: 中国电力出版社, 2006. [3] Milanovic J V. Damping of the low-frequency oscillations of the generator: dynamic interactions and the effectiveness of the controllers[J]. IEE Proceeding of Generation, Transmission and Distribution, 2002, 149 (6): 753-759. [4] Noroozian N, Andersson G. Damping of inter-area and local modesby use of controllable components [J]. IEEE Transactions on Power Delivery, 1995, 10(4): 2007-2012. [5] 朱方, 赵红光, 刘增煌, 等. 大区电网互联对电力系统动态稳定性的影响[J]. 中国电机工程学报, 2007, 27(1): 1-7. Zhu Fang, Zhao Hongguang, Liu Zenghuang, et al. The influence of large power grid interconnected on power system dynamic stability[J]. Proceeding of the CSEE, 2007, 27(1): 1-7. [6] 余贻鑫, 李鹏. 大区电网弱互联对互联系统阻尼和动态稳定性的影响[J]. 中国电机工程学报, 2005, 25(11): 6-11. Yu Yixing, Li Peng. The impact of weak interconnection of bulk power grids to damping and dynamic stability of power system[J]. Proceeding of the CSEE, 2005, 25(11): 6-11. [7] Noroozian M, Andersson G. Damping of inter-area and local modes by use of controllable components[J]. IEEE/PES Winter Meeting Paper, 1995. [8] 毛承雄, 吴建东, 娄慧波, 等. 基于电流源型变换器的大型同步发电机励磁[J]. 水电能源科学, 2008, 26(3): 172-175. Mao Chengxiong, Wu Jiandong, Lou Huibo, et al. Large synchronous generator excitation system based on current source converters[J]. Water Resources and Power, 2008, 26(3): 172-175. [9] 吴建东, 何丽娜, 毛承雄. 同步发电机的新型励磁系统[J]. 电力科学与技术学报, 2009, 24(1): 12-18. Wu Jiandong, He Lina, Mao Chengxiong. Novel excitation system of synchronous generator[J]. Journal of Electric Power Science and Technology, 2009, 24(1): 12-18. [10] 何丽娜, 毛承雄, 陆继明, 等. 采用大功率电力电子全控器件的新型励磁系统[J]. 高电压技术, 2009, 35(7): 1711-1717. He Lina, Mao Chengxiong, Lu Jiming, et al. Novel excitation system using high power electronics full controlled devices rectifier[J]. High Voltage Engineering, 2009, 35(7): 1711-1717. [11] 张崇巍, 张兴. PWM整流器及其控制[M]. 北京: 机械工业出版社, 2002. [12] 徐金榜. 三相电压源PWM整流器控制技术研究[D]. 武汉: 华中科技大学, 2004. [13] 陈瑶, 金新民, 童亦斌. 三相四线系统中三相电压型PWM整流器控制策略[J]. 电工技术学报, 2007, 22(7): 64-68. Chen Yao, Jin Xinmin, Tong Yibing. Control strategy of three-phase voltage source pwm rectifier in three-phase four-wire systems[J]. Transactions of China Electrotechnical Society, 2007, 22(7): 64-68. [14] M Nomzian, G hdmon. Damping of power system oscillations by use of controllable components[J]. IEEE Transactions on Power Delivery, 1994, 9(4): 2046-2054. [15] Wang Haifeng, Li Nah. Static var compensator in damping power system oscillations part I: theoretical analysis[J]. Proceedings of the CSEE, 19(3):190-195. [16] 邓集祥, 纪晶, 邓斌. 基于复合模式的电力系统超低频振荡产生机理[J]. 电工技术学报, 2007, 22(8): 84-89. Deng Jixiang, Ji Jing, Deng Bin. The generation mechanism of ultra-low frequency oscillation in power systems based on combination modes [J]. Transactions of China Electrotechnical Society, 2007, 22(8): 84-89.
2012, Vol. 27 
