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Analysis of the Asynchronous Generator Voltage and Current Distortions after a Sudden Load Rejection

机译：突然甩负荷后异步发电机电压和电流失真的分析

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In the paper load rejection test, provided at a hydro power plant in Sweden, equipped with asynchronous generators, is described and analysed from the electromechanical transient processes and signal distortions points of view. During the test, the shunt capacitors and generator terminal voltages and currents are digitized, recorded and thereafter off-line processed by using Newton Type Algorithm, an efficient non linear estimator. Estimator is utilized for the unknown signal model parameters estimation. The main goal was to investigate the frequency changes and the distortions of the signals processed. Particularly, the frequency changes and the total harmonic distortion factors before and after the instance of load rejection are estimated and discussed. The results given in the paper presents the features of the numerical algorithm used when real data are processed.
机译：在纸浆负载抑制测试中，从机电暂态过程和信号失真的角度描述和分析了瑞典一家水力发电站配备异步发电机的纸负载抑制测试。在测试过程中，使用高效的非线性估算器牛顿类型算法对并联电容器和发电机端子的电压和电流进行数字化，记录并随后进行离线处理。估计器用于未知信号模型参数估计。主要目的是研究频率变化和所处理信号的失真。特别是，估算并讨论了甩负荷前后的频率变化和总谐波失真因子。本文给出的结果展示了处理实际数据时使用的数值算法的特征。

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