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PWM GATE ARRAY FOR AC DRIVES
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| Author(s) |
E. Kiel; W. Schumacher; R. Gabriel |
| Abstract |
New designs for digitally controlled AC drives include the current control loop or PWM pattern generation in digital circuitry. Inverter as well as control are digital in nature. So a circuit was designed, which interfaces between them. Primary goal in this design was to concentrate all calculations running with a high repetition rate into hardware. This includes the sine and cosine functions and multiplication with the desired amplitude. The circuit works in two operating modes. In conjunction with a simple microcontroller for frequency inverter applications only output voltage and frequency have to be transmitted to the chip. For high dynamic purposes a signal processor can operate the chip by sending a cartesian voltage vector and a phase angle thus relieving the processor trom the task of output transformation from field into stator coordinates. |
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| Filename: | Unnamed file |
| Filesize: | 3.058 MB |
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| Type |
Members Only |
| Date |
Last modified 2021-03-01 by System |
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