Drives for single-phase ac motor control
Drives for single-phase ac motor control
(OP)
Dear friends,
for my application I need to implement an AC single-phase induction motor speed control. The motor is low power (60W), permanent split capacitor, 220V.
I'm looking for drives OEM, but I found only the DigiDrive LP (Anacon Systems) that seems suitable. I ordered it 3 months ago but I haven't received.
Please inform me if you know other drives like DigiDrive LP.
Question:can I use (alternative solution)an inverter with three-phase output and connect the motor between two phase (all the inverters that I found have three-phase output).
Thank you in advance for your tips
for my application I need to implement an AC single-phase induction motor speed control. The motor is low power (60W), permanent split capacitor, 220V.
I'm looking for drives OEM, but I found only the DigiDrive LP (Anacon Systems) that seems suitable. I ordered it 3 months ago but I haven't received.
Please inform me if you know other drives like DigiDrive LP.
Question:can I use (alternative solution)an inverter with three-phase output and connect the motor between two phase (all the inverters that I found have three-phase output).
Thank you in advance for your tips





RE: Drives for single-phase ac motor control
You can't use a PSC motor on a variable speed drive so far as I know, because the phase shift created by the capacitor is frequency-dependent, plus at low frequencies the capactior impedance rises to a large value and limits the winding current. Someone will no doubt correct me if I'm wrong.
You can't use a split phase motor either, because the centrifugal switch will energise the start winding below a certain speed and burn it out.
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RE: Drives for single-phase ac motor control
RE: Drives for single-phase ac motor control
Simple voltage control would work (to a point)!
Mind you, you can only go lower than the rated RPM's.
RE: Drives for single-phase ac motor control
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RE: Drives for single-phase ac motor control