The subject matter of the invention is "elevator machine braking". An elevator machine assembly includes a motor and an elevator drive configured to control power supply to the motor. The elevator drive includes at least a plurality of inverter switches and an energy storage device arranged to be charged in response to the motor generating a back electromotive force as the motor rotates in response to a torque applied to the motor when the elevator drive is not providing power to the motor. A short circuit module selectively coupled to the energy storage device through the inverter switch selectively discharges the energy storage device to limit the counter electromotive force of the electric machine and a corresponding speed at which the electric machine rotates.
本发明的主题是“电梯机器制动”。一种电梯机器组件包括电机和配置成控制到电机的功率供应的电梯驱动器。电梯驱动器至少包括多个变换器开关和能量存储装置,所述能量存储装置被设置为当电梯驱动器不向电机提供功率时,随着电机响应于施加到电机的转矩而转动,响应于电机生成反电动势而被充电。通过变换器开关选择性地与能量存储装置耦合的短路模块选择性地使能量存储装置放电以限制电机的反电动势和对应速度,电机以所述对应速度转动。
Elevator machine braking
电梯机器制动
2024-08-09
Patent
Electronic Resource
Chinese