Abstract：Aimed to the Stirling engine generator for accumulator charging, an excitation system is proposed, which works with Buck circuit as the power amplifier and works with speed as outer closed-loop and excitation current of the exciter generator as inner closed-loop. Controlled by the excitation system, the gas-engine generator is able to charging the accumulator with changeable power at the invariant speed. Based on the math function between the terminal voltage frequency and the generator’s speed, a method to calculate the generator’s speed is used. The terminal voltage is too small to be used to calculate the speed at the low speed stage, so a pre-excitation method is used to carry out the problem. The successful speed calculation method cuts the cost and shortens the axial-direction length of the generator since the gear and encoder can be omitted. Tests show that the excitation system of the gas-engine generator is of excellent steady speed regulation and dynamic performance.
阳习党, 翟小飞, 马伟明, 胡安, 晏明. 整流充电发电机组励磁系统[J]. 电工技术学报, 2014, 29(5): 54-61.
Yang Xidang, Zhai Xiaofei, Ma Weiming, Hu An, Yan Ming. Excitation System of Rectified Charging Generators. Transactions of China Electrotechnical Society, 2014, 29(5): 54-61.
[1] 翟小飞, 刘德志, 欧阳斌, 等. 双闭环控制的三相整流发电机数字式励磁系统[J]. 电机与控制学报. 2011, 15(3): 19-24. Zhai Xiaofei, Liu Dezhi, Ouyang Bin, et al. A digital excitation system for the three-phase rectified generator with double close loop control[J]. Electric Machines and Control, 2011, 15(3): 19-24. [2] 贾贵玺, 董钺, 张臣堂. 基于PWM控制的发电机励磁系统[J]. 天津大学学报, 2005, 38(10): 874-877. Jia Guixi, Dong Yue, Zhang Chentang. PWM-based excitation system of generators[J]. Journal of Tianjin University, 2005, 38(10): 874-877. [3] 李基成. 现代同步发电机励磁系统设计及应用[M]. 北京：中国电力出版社, 2009. [4] 钱国柱, 周增新, 严善庆. 热气机原理与设计[M]. 北京：国防工业出版社, 1987. [5] 贾红书, 洪国同, 陈厚磊. 用于斯特林热机的动圈式直线电机设计与分析[J]. 电机与控制学报, 2011, 15(12): 21-25. Jia Hongshu, Hong Guotong, Chen Houlei. Design and performance testing of moving coil linear motor for stirling generator[J]. Electric Machines and Control, 2011, 15(12): 21-25. [6] Thombare D C, Verma S K. Technological development in the Stirling cycle engines[J]. Renewable and Sustainable Energy Reviews, 2008(12): 1-38. [7] 李明震, 董金钟. 蝶式斯特林发电系统性能分析模型与仿真[J]. 北京航空航天大学学报, 2013, 39(3): 381-385. Li Mingzhen Dong Jinzhong. Dish-stirling power generation system performance prediction model and simulation ananysis[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(3): 381-385. [8] 周双喜, 李丹. 同步发电机数字式励磁调节器[M]. 北京：中国电力出版社, 1998. [9] 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, 2005. [10] 刘陵顺, 高艳丽, 张树团, 等. TMS320F28335 DSP 原理及开发编程[M]. 北京：航空航天大学出版社, 2011. [11] Michael J Basler. Excitation systems: the current state of the art[C]. IEEE/PES 2006 General Meeting, 2006: 1-7. [12] IEEE Standard 421.5-2005 Recommended practice for excitation system models for power system stability studies[S]. [13] IEEE standard 421.5-1992 recommended practice for excitation system models for power system stability studies[S]. [14] IEEE standard definitions for excitation systems for synchronous machines[S]. [15] 韩英铎, 谢小荣, 崔文进. 同步发电机励磁控制研究的现状与走向[J]. 清华大学学报(自然科学版), 2001, 41(4/5): 142-146. Han Yingduo, Xie Xiaorong, Cui Wenjin. Status quo and future trend in research on synchronous generator excitation control[J]. Journal of Tsinghua University (Sci&Tech), 2001, 41(4/5): 142-146. [16] 翟小飞, 刘德志, 欧阳斌. 基于H桥拓扑结构的励磁电流放大器研究[J]. 电工技术学报, 2009, 24(5): 114-118. Zhai Xiaofei, Liu Dezhi, Ouyang Bin. Research on the exciter field current amplifier based on H bridge topology circuit[J]. Transactions of China Electrotech- nical Society, 2009, 24(5): 114-118. [17] 李军, 李华峰. 基于斩波控制的新型励磁系统[J]. 电力自动化设备, 2006, 26(7): 13-17. Li Jun, Li Huafeng. Novel excitation system based on chopped wave control[J]. Electric Power Automation Equipment, 2006, 26(7): 13-17. [18] Thomas Nussbaumer, Marcelo Lobo Heldwein, Guanghai Gong, et al. Comparison of prediction techniques to compensate time delays caused by digital control of a three-phase buck-type PWM rectifier system[J]. IEEE Transactions on Industral Electronics, 2008, 55(2): 791-799. [19] Rajeev Bhaskar, Crow M L, Ludwig E. Nonlinear parameter estimation of excitation systems[J]. IEEE Transactions on Power System, 2000, 15(4): 1225- 1231. [20] Dionysios C Aliprantis, Scott D Sudhoff, Brian T Kuhn. A brushless exciter model incorporating multiple rectifier modes and preisach’s hysteresis theory[J]. IEEE Transactions on Energy Conversion, 2006, 21(1): 136-147. [21] Jadric I, Borojevic D, Jadric M. Modeling and control of a synchronous generator with an active DC load[J]. IEEE Transactions Energy Conversion, 2000, 5(2): 303-308.
2014, Vol. 29 
