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High First Torque Harmonic Due to Insufficient Function of Dead-Time Compensation in PWM Inverters
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| Author(s) |
SCHAEFER Uwe; PLOTKIN Juriy; HANITSCH Rolf |
| Abstract |
A new source for the DC current offset in the PWM inverter-fed loads is found. A significant irregularity in dead-time voltage compensation due to a very small offset in phase current measurement is the cause for it. In the phase currents and voltages, high DC offsets appear at low current magnitudes, which lead to a first torque harmonic in the drive. Recommendations how to avoid this effect are given in the paper. |
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| Filename: | 0790-epe2007-full-20434151.pdf |
| Filesize: | 334 KB |
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| Type |
Members Only |
| Date |
Last modified 2008-01-11 by System |
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