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Hidden reflection phenomena on inverter-fed induction motors
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| Author(s) |
BELMANS Ronnie; CATRYSSE Johan; PEUTEMAN Joan; KNOCKAERT Jos |
| Abstract |
When supplying an induction motor by a PWM-inverter through long cables, reflections occur. For some inverters other reflection phenomena than the usual overvoltages appear at the motor side, namely steps smaller than 0.5 p.u. of the , also called stair stepping. The stair stepping reflection phenomenon occurs at the commutation from IGBT to diode. Stair stepping depends on the magnitude of the current, the cable impedance and on the dead time of the IGBT gate-signal. The reflection phenomenon increases the turn on time of the diode. |
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| Filename: | 0289 |
| Filesize: | 462.3 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-05 by System |
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