介绍了甘肃省汉坪咀水电站1#机励磁系统参数测试情况。根据现场实测数据，建立了可用于电网稳定计算的励磁系统数学模型，确定了模型参数。利用电力系统仿真软件BPA对1#机空载5%阶跃响应进行了仿真计算。仿真结果与实测结果的各项指标接近，说明所选数学模型及参数符合实际情况，可满足稳定分析的需要。

The paper introduces parameter testing of the excitation system for No. 1 unit in Gansu Hanpingzui Hydropower Station. According to the field test data, the excitation system model for stability calculation is set up and the model parameters are obtained. No loading 5% step response of No.1 unit is simulated by BPA simulation software. The simulated result indicates the mathematical model and the parameters meet the actual situation and the needs of stability.