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Power factor correction of high power winding rotor induction motor based on single phase to three phases cycloconverter
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| Author(s) |
D. Chaoping; L. Zhinbin; Y. Pengsheng |
| Abstract |
A way of power factor correction of high power winding rotor induction motor
is proposed. By using a voltage source with series connection to the rotor of induction motor,
the unity power factor can be obtained. The amplitude and phase of the voltage source are
variable and its frequency follows the rotor current frequency. A single phase to three phases
cycloconverter to realize this voltage source is designed. This cycloconverter uses 12
thyristors and the control strategy is much simple than the traditional converter. Moreover, the
control strategy ensures the soft-switching for thyristors. PSPICE simulation is performed to
confirm the correction operation of control strategy. A prototype of a 400kW induction motor
was developed, the results confirm the validity of the analysis. The power factor of induction
motor reaches 0.97 and the system is robust to the variable load. |
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| Filename: | EPE2003-PP0147 - Chaoping |
| Filesize: | 172.1 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-01-26 by Unknown |
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