摘要
以对称分量法为基础,结合发电机外电路的连接方式,推导出含有受控源的三相异步发电机单相稳态运行时的复合序网模型,并进一步得到发电机稳态运行时的正序阻抗方程。利用优化方法求解该方程,求解出给定电容组合下异步发电机稳态运行的频率标幺值及励磁电抗,进而得到负载电压。再以发电机负载电压为已知条件,通过迭代方法求出使电压稳定时的不同电容组合。计算值与实验值吻合度较高,验证了分析方法的准确性。
A compound sequence network model with controlled sources is derived based on the symmetrical component method for the three-phase induction generator supplying the single-phase load. Then the corresponding positive sequence impedance equation in steady state operation is deduced. The impedance equation can be solved with optimization to get per unit frequencies and magnetizing reactances of the induction generator under given capacitor combinations,and further the load voltage. The capacitor combinations can then be obtained by the iterative algorithm for a given output voltage. The calculated results are in good agreement with the experiment results,which verify the accuracy of the proposed method.
出处
《电工技术学报》
EI
CSCD
北大核心
2016年第9期156-161,共6页
Transactions of China Electrotechnical Society
基金
国家自然科学基金面上资助项目(51377086)
关键词
异步发电机
单相负载
对称分量法
复合序网
稳态运行
Induction generator
single-phase load
symmetrical component method
compound sequence network
state steady operation
