关键词: 匝间绝缘, 故障检测, 反激变换器, 电机绕组, 高压脉冲

Abstract: The failure to detect the inter-turn short circuit fault of the motor winding in time will has a great impact on the operation of the motor. The existing inter-turn insulation detection technologies have some disadvantages, such as multiple control links, large volume and quality, high cost, and low detection accuracy. Based on the direct surge impact method for inter-turn insulation detection, this paper proposes a winding inter-turn insulation detection method based on flyback converter,provides a specific implementation scheme,and verifies the scheme. This method solves some problems of existing inter-turn insulation detection technologies,and has advantages of simple structure,few control links,high detection
accuracy,high safety,and low cost.

Key words: inter-turn insulation,fault detection,flyback converter,motor winding,high voltage pulse