Inverter + three-phase asynchronous motor to achieve power-up/over-frequency operation

1. Preface ## Title In the
case of special circumstances that require the motor to increase power or over -frequency operation of the motor, here are some project cases and experiences for reference.
2. Pre-knowledge ## Title
2.1. Base frequency increase (50HZ- >87HZ): If the base frequency is 50HZ, when the motor speed reaches 87HZ, then the motor torque = motor rated torque * (50/87); if the base frequency is 87HZ, when the motor speed is adjusted below the base frequency It is the constant torque mode

2.2. Mechanical characteristic curve: (T=9550P/n) When the motor speed is high, the motor torque is reduced.


3. Project case ## Title
description: The following parameter values ​​are 400V 22KW inverter parameter settings For example, it does not mean that it is fully applicable to the site. In actual application, some adjustments should be made according to the situation.
3.1. SEW three-phase asynchronous motor brand-name parameters, please confirm whether the motor supports 380v angular power mode