Posted 29 May 2008 - 09:37 AM
There is motor designed by the Japanese, they called it ED motor and it has got a permanent magnet rotor. The supplier is claiming that their inverter system is 26 % more economical, energy wise, than conventional VSDs. They even claimed that their sinusaoidal wave converter system is harmonic free.
Any guess ?
Posted 30 May 2008 - 01:13 AM
Posted 12 July 2008 - 09:12 PM
it should be also an IPM (Internal Permanent Magnet) motor.
Or a PM-assisted synchronous reluctance (PMASR) motor.
About harmonic-free current, are they claiming to have clean input current or clean output current to the motor?
Can you link the information that you have?
IPM motors don't need rare-earth magnets, ferrite magnets are acceptable.
SSP motors are another option: SSP (3 MB)
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