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Field-Oriented Control of Permanent Magnet Synchronous Motor without Current Sensors
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| Author(s) |
Klíma B., Skalický J. |
| Abstract |
In many applications there are used low-power servodrives with permanent magnet synchronous motors (PMSM). Low-voltage inverters often feed those servodrives, because it is easier to manufacture stator winding with fewer turns by thick wire then more turns by thin wire. Typical DC-link voltage levels are 24V or 48V. The inverter power circuits of such servodrives typically consist of low-cost MOSFET transistors. Generally, with increasing of DC-link voltage material cost of power circuits of servodrive increase too. In case of low-voltage and low-power servodrive the main rate of material costs is located in control circuits of the inverter. This article describes a field - oriented control method of PMSM without current sensors. The rotor speed and rotor position is sensed. By this method all circuits for current sensing are eliminated. This problem is solved as a part of project CEZ J22/98: 26 22 000 10. |
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| Filename: | EPE-PEMC2000 - 310 - Klima.pdf |
| Filesize: | 155 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-04-28 by System |
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