Generator winding fault protection method and device

• Main Authors: LIU LEI, ZHOU YUE, XIAO SHUOWEN
• Format: Patent
• Language: Chinese; English
• Published: 25.06.2021
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; MEASURING; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention provides a generator winding fault protection method and device. The generator winding fault protection method comprises the following steps of: acquiring temperature data of a generator winding in a preset time period; determining an effective value range of the temperature of the generator winding based on the temperature data; determining effective temperature data in the temperature data of the generator winding; and carrying out fault protection on the generator winding according to the effective temperature data. Thu, the problems of sensor failure and the like can be effectively and accurately identified, the influence of failure of individual temperature sensors on the overall temperature data is reduced, and the redundancy protection capability of the generator temperature sensors is improved. 提供一种发电机绕组故障保护方法及装置。该发电机绕组故障保护方法包括：获取预设时间段内的发电机绕组的温度数据；基于温度数据确定发电机绕组温度的有效值范围，基于所述有效值范围；确定发电机绕组温度数据中的有效温度数据；根据所述有效温度数据对发电机绕组进行故障保护，能够有效和准确地识别传感器失效等问题，降低个别温度传感器失效对整体温度数据的影响，从而使发电机温度传感器的冗余保护能力得到提升。