采用定子电压恢复法测试发电机直轴暂态开路时间常数

Testing Direct-Axis Transient Open-Circuit Time Constant of Generator Based on Stator Voltage Restoring Method

根据定子电压恢复法的原理测试同步发电机直轴暂态开路时间常数;针对不同类型的励磁调节器制定试验方法,包括:定角度阶跃法、逆变法、并联二极管续流法、定励磁电压起励法;通过对4种试验方法的测试数据进行分析,比较各种方法的精确度及其优缺点,最后证明4种试验方法都可以准确测试发电机的直轴暂态开路时间常数。

The direct-axis transient open-circuit time constant of synchronous generator is tested based on the principle of stator voltage restoring method. Test methods are formulated for different types of excitation regulators, including constantangle step method, inverse method, shunt diode continuous current method, and exciting method with fixed excitation voltage. Upon test result analysis of the four methods, the accuracy, advantages and disadvantages of the methods are compared, which proves that all the four methods can accurately test the direct-axis transient open-circuit time constant of generator.