感应发电机接入配网对闪变衰减效应的分析及计算

Analysis and Calculation of Flicker Attenuation Effect for Induction Generator Integrated Into Distribution Network

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摘要感应发电机(induction generator,IG)接入配网时,不同频率的电网电压波动将使IG表现出动态变化的阻抗特性。首先分析IG接入配网对电压闪变的动态响应,定义IG电压波动衰减系数;重点比较柴油、风力等不同传动轴系对IG电压闪变衰减效应的影响,建立采用两质量块轴系的IG机组线性化模型,提出IG动态阻抗和电压波动衰减系数解析算法。利用Matlab/Simulink软件中IG的详细动态模型验证了本文提出方法的正确性,并分析了感应发电机闪变衰减效应的轴系参数灵敏度。 When induction generator （IG） is embedded in distribution network, its impedance characteristic will perform dynamic changes with the different voltage fluctuation frequencies. The dynamic response of IG to voltage flicker is observed, and the attenuation factor of voltage fluctuation is defined. The linearization model of IG with two-mass equivalent drive train is constructed according to the impact comparison of different drive trains to the voltage flicker attenuation, such as diesel engine, wind turbine and so on. Then an analytical method for IG integration into distribution network to determine the dynamic impedance and attenuation factor of voltage fluctuation is proposed. The correctness of proposed method is verified by the dynamic simulation using the detailed model of IG set in Matlab/Simulink software, and the sensitivity of drive train parameters to the voltage flicker attenuation effect oflG set is analyzed.

作者周念成潘姝王强钢

机构地区输配电装备及系统安全与新技术国家重点实验室(重庆大学)

出处《中国电机工程学报》 EI CSCD 北大核心 2013年第10期128-136,9,共9页 Proceedings of the CSEE

基金输配电装备及系统安全与新技术国家重点实验室自主研究项目(2007DA10512711209)~~

关键词闪变闪变衰减鼠笼式感应发电机传动轴系 flicker flicker attenuation squirrel-cage rotor induction generator （IG） drive train

分类号 TM71 [电气工程—电力系统及自动化]

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