Merits of inverter drives
Washing machines with inverters have the following merits:
- Simple switching of low/high speed
Speed control of washing machines without inverters use the following methods:
- Change of number of motor poles
- Use of pulleys or gears
Inverters can control motors at any speed, and can remove some magnet contactors for cost reduction.
- Simple switching of forward/reverse operation
Inverters can control forward or reverse operation simply.
Therefore, magnet contactors for forward/reverse operation aren't needed.
Besides, inverters can control motors without mechanical shock.
- High speed operation for tact time reduction
Inverters can control motors at frequencies higher than commercial power supply.
Therefore, washing machines with inverters can reduce the dehydration time.