基于黄金分割的异步发电机空载建压转速值的确定

Determination of Self-Excited Rotational Speed of Induction Generator under No-Load Operation Based on Golden-Section

从异步发电机稳态运行的等效电路模型出发,列写了等效电路模型的回路阻抗方程,令回路阻抗实部和虚部分别为零,建立方程组。在此基础上利用二维优化计算最小建压电容,然后利用基于黄金分割的一维优化方法计算最小建压转速值。此法编程简单,收敛速度快。论文最后通过实例计算验证了本方法的正确性和准确性。

Based on the model of equivalent circuit of a asynchronous generator at steady-state operation, the loop impedance equation of it are listed in this paper. Equating the real part and imaginary part of loop impedance to zero, an equation group is constructed. Two-dimension optimization method is utilized to calculate the minimum self-excited capacitance and then the linear dimension optimization method based on golden-section is utilized to calculate the minimum self-excited rotational speed. This method has the advantages of easy programming and fast rate of convergence. The exampleat the end verifies the correctness and accuracy of the presented method.