电机在发生事故突然失电时,为确保系统安全,要求电机能拖动设备依靠自身惯量,继续运转2 min。由于电机自身惯量远小于系统惯量要求,因此需在电机本体上加装大直径、大重量飞轮,以提供足够的惯量。在大容量、高速立式电动机加装大转动惯量飞轮后,电机的稳定运行变得至关重要,因此对电机自身的刚度、轴系及结构设计的合理性需进行验证。针对电机的关键点结构设计及计算,并通过现场运行,对电机的可靠性进行了验证。这为电机的工程运用提供参考。

Sudden loss of power, the motor in the accident in order to ensure the system safety, motor could drag equipment rely on their own inertia, continue to run 2 minutes. Due to inertia was far less than the system inertia motor itself demand, so need to be on the machine body with large diameter, large flywheel weight, in order to provide enough moment of inertia. In large capacity and high speed vertical motor equipped with big moment of inertia of the flywheel, the stable operation of the motor becomes very important, therefore, shafting on stiffness of the machine itself and the rationality of the structure design should be validated. Aiming at the key points of the motor structure design and calculation, and through the real machine field operation. Verified the reliability of the motor. To provide the reference for electrical engineering application.

TM 302