核电站大型无刷励磁发电机转子温度测量方法综述

核电站百万千瓦级无刷励磁方式下 ,汽轮发电机组转子温度测量可以有不同方法。其中有在三机旋转励磁时 ,通过在励磁机定子的磁极之间装设探测线圈 ,在励磁机转子轴上安装测量滑环 ,测量转子电压、电流得到转子温度的方法 ,以及对于机端励磁变压器构成的两机励磁系统 ,采取通过工厂实验数据和一定算法测量转子实时温度的新方法。

Summary of Nuclear Power Station Brushless Excitation Generator Rotor Temperature Measurement Techniques

For mega - kilowatt class nuclear power plant, there are different ways to measure turbine - generator rotor temperature under brushless excitation. Among them, there are two new approaches, such as installing detective coils between stator magnetic poles, installing slip - ring on exciter rotor shaft to measure the rotor voltage and current for the rotor temperature; and using terminal excitation transfomler forming two - terminal excitation system combined with experiment data and certain algorithms to measure real - time rotor temperature.