发电机进相试验分析与探讨

Analysis and Discussion on Generator Leading-phase Test

为了保持系统电压平衡和稳定,探讨发电机的进相能力对系统电压质量的影响。介绍发电机进相试验的限制因素及具体试验步骤。对岩滩电厂6号发电机进相试验结果及相关数据进行分析,得到该机组安全进相运行容量。通过发电机进相试验,可得到发电机在各种工况的运行参数,掌握发电机在进相运行下的静稳态能力。发电机进相试验所得的数据,为电网调度部门绘制发电机运行PQ曲线、下发低励限制定值和安排机组进相运行提供了科学依据。

In order to keep the balance and stability of system voltage, the influence of generator leading phase ability to the system power quality is discussed. Limited factors and concrete test steps of generator lading phase test are introduced. Test results of No.6 generator leading phase in Yantan Power plant and relevant data are analyzed. The security leading phase capacity of generator is obtained. By generator leading phase test, operation parameters off generator under every kinds of operation status can be obtained and the static stability ability of generator under leading phase operation can be grasped. Data obtained in generator leading phase test provide scientific basis for the power grid dispatching department to draw the generator PQ curve, release setting of low excitation limiter and arrange generator leading phase operation.