摘要
为研究机械输入功率波动对三/三相双绕组感应发电机系统运行稳定性的影响,本文在忽略定子变压器电势的前提下建立了简化的等效电路模型。在此模型的基础上,采用线性化处理得到该系统的状态方程。使用赫尔维茨定理得出了系统稳定运行的判据和临界转差频率的计算公式,揭示了系统微变稳定性的物理实质,试验与理论分析的对比表明了所建模型和分析方法的正确性。
The simplified equivalent circuit model is established in this paper, neglecting the electromagnetic transient process of the stator, in order to research into the influence of the mechanical power fluctuations on the stability of 3/3 dual-stator induction generator system （DSIG） . The linearization method is applied to the equivalent circuit model, and the state space mathematical model is obtained. The stability criterion for the system under small disturbance and the formula for calculating critical slip are obtained by using Hurwitz criterion. A physical interpretation is given to the stability criterion. The comparison between the calculated and experimental results verifies the validity of the mathematical model and analytical method.
出处
《电工技术学报》
EI
CSCD
北大核心
2007年第11期29-34,共6页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目(50477051
50421703)
关键词
双绕组感应发电机
小扰动
机械功率波动
稳定性
3/3 dual-stator induction generator, small disturbance, mechanical power fluctuations, stability
