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FAST DIGITAL CURRENT CONTROL IN SWITCHED RELUCTANCE MOTOR DRIVE WITHOUT CURRENT FEEDBACK FILTERS
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| Author(s) |
Frede Blaabjerg; Philip C. Kjaer; Peter O. Rasmussen; Lars Christensen; Steffan Hansen; Jesper R. Kristoffersen |
| Abstract |
This paper proposes a method to avoid current feedback filters in fast digital based current loops in switched reluctance drives. The method uses symmetrical modulation of the PWM and synchronously sampling of the current. This gives a noise-free current sampling and no anti-aliasing filter
is necessary. A fast FPGA based test system is used for test of the new method. Test results show a
significant improved current loop control with the new method compared with traditional methods. It is
concluded that the new method can be used in other applications with digital control. |
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| Filename: | Unnamed file |
| Filesize: | 531.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2016-04-05 by System |
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