定子暂态和运行区域对异步发电机稳定性影响

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (471 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The 1st and 3rd order models of induction generators neglect the stator electromagnetic dynamics, and the 5th order model ignores the angular speed change of stator voltage. The mechanical torque is related to speed or power control zones, whose impact on the stability is not investigated. The influence of the model orders, operation zones, and stator speed on the small-disturbance stability of the induction generators are studied. It is found that with increasing wind power, the eigenvalue related to the rotor electromagnetic transient moves leftward, while that to the stator transient moves rightward. The initial slip is quantified based on the operation zones. It is found that the eigenvalue corresponding to the rotor electromagnetic transient under speed control has positive real part, which can not be directly applied to ordinary induction machines. It is proved from general sense that stator voltage angle is not a state variable. The critical eigenvalue of wind power system ignoring the stator speed change is optimistic, and the relative error is more notable with more induction generators.

Key words： Induction generator small-disturbance stability stator dynamics operation zone stator angular speed

Received: 08 October 2010 Published: 07 March 2014

PACS:	TM614
	TM712

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Li Shenghu
	Jia Yudong
	Li Shaofei
	Sun Shasha

Cite this article:

Li Shenghu,Jia Yudong,Li Shaofei等. Influence of Stator Dynamics and Operation Zone on Stability of Induction Generators[J]. Transactions of China Electrotechnical Society, 2011, 26(1增): 286-292.

URL:

http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I1增/286

[1] 王忱, 石立宝, 姚良忠, 等. 大规模双馈型风电场的小扰动稳定分析[J]. 中国电机工程学报, 2010, 30(4): 63-70.
Wang Chen, Shi Libao, Yao Liangzhong, et al. Small signal stability analysis of the large-scale wind farm with DFIGs [J]. Proceedings of the Chinese Society for Electiral Engineering, 2010, 30(4): 63-70.
[2] 关宏亮, 迟永宁, 戴慧珠, 等. 异步风电机组接入系统的小干扰稳定及控制[J]. 电力系统自动化, 2008, 32(4): 54-58.
Guan Hongliang, Chi Yongning, Dai Huizhu, et al. Small signal stability and control of wind turbine with asynchronous generator integration into power system [J]. Automation of Electric Power Systems, 2008, 32(4): 54-58.
[3] 黄学良, 刘志仁, 祝瑞金. 大容量变速恒频风电机组接入对电网运行的影响分析[J]. 电工技术学报, 2010, 25(4): 142-149.
Huang Xueliang, Liu Zhiren, Zhu Ruijin, et al. Impact of power system integrated with large capacity of variable speed constant frequency wind turbines[J]. Transactions of China Electrotechnical Society, 2010, 25(4): 142-149.
[4] 李生虎, 刘正楷, 杨振林. 风电系统中异步发电机机电模式研究[J]. 电力系统保护与控制, 2010, 38(21): 6-11.
[5] Mora E S, Olivares T I A, Vega D R, et al. The effect of induction generators on the transient stability of a laboratory electric power system [J]. Electric Power Systems Research, 2002, 61(3): 211-219.
[6] Wasynezuk O, Diao Y M, Krause P C. Theory and comparison of reduced order models of induction machines [J]. IEEE Transactions on Power Apparatus and Systems, 1985, 104(3): 598-606.
[7] Krause P C, Rodriguez F D, Wasynczuk O, et al. Neglecting stator transients when representing isolated operation of induction machines [J]. IEEE Transactions on Power Systems, 1987, 2(1): 183-186.
[8] Mei F, Pal B. Modal analysis of grid-connected doubly fed induction generators [J]. IEEE Transactions on Energy Conversion, 2007, 22(3): 728-736.
[9] Ekanayake J B, Holdsworth L, Jenkins N. Comparison of 5th order and 3rd order machine models for doubly fed induction generator (DFIG) wind turbines [J]. Electric Power Systems Research, 2003, 67(3): 207-215.
[10] Akhmatov V. 风力发电用感应发电机[M]. 北京: 中国电力出版社, 2009.
[11] Sørensen P, Hansen A D, Thomsen K, et al. Operation and control of large wind turbines and wind farms - final report [R]. Risø National Laboratory Roskilde Denmark, 2005.
[12] Senjyu T, Sakamoto R, Urasaki N, et al. Output power leveling of wind turbine generator for all operating regions by pitch angle control [J]. IEEE Transactions on Energy Conversion, 2006, 21(2): 467-475.
[13] Grilo A P, Mota A D A, Mota L T M, et al. An analytical method for analysis of large-disturbance stability of induction generators [J]. IEEE Transactions on Power Systems, 2007, 22(4): 1861-1869.
[14] Yousif E T. Pitch angle control of variable speed wind turbine [J]. American Journal of Engineering and Applied Sciences, 2003, 1(2): 118-120.
[15] Li S, Hao X, Li S F. Low-frequency oscillation characteristics of wind power systems with interface including the stator dynamics [C]. IEEE Power Conference, 2010: 1-8.
[16] Zubia I, Ostolaza X, Susperregui A, et al. Complete wind farm electromagnetic transient modelling for grid integration studies [J]. Energy Conversion and Management, 2009, 50(3): 600-610.
[17] 孙涓涓, 李永东. 异步电机定子电压定向矢量控制系统的改进[J]. 电工技术学报, 2002, 17(2): 29-33.
[18] Divya K C, Rao P S N. Models for wind turbine generating systems and their application in load flow studies [J]. Electrical Power Systems Research, 2006, 76(9-10): 844-856.
[19] 雷亚洲, Gordon L. 国外风力发电导则及动态模型简介[J]. 电网技术, 2005, 25(12): 27-32.
[20] Reliability Test System Task Force. IEEE reliability test system [J]. IEEE Transactions on Power Apparatus and Systems, 1979, 98(6): 2047-2054.