GAO Manman, DU Qingnan. Research of power factor control of double-variable cycloconverter double-fed motor[J]. Journal of Mine Automation, 2014, 40(9): 70-74. DOI: 10.13272/j.issn.1671-251x.2014.09.017
Citation: GAO Manman, DU Qingnan. Research of power factor control of double-variable cycloconverter double-fed motor[J]. Journal of Mine Automation, 2014, 40(9): 70-74. DOI: 10.13272/j.issn.1671-251x.2014.09.017

Research of power factor control of double-variable cycloconverter double-fed motor

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  • Mathematical model of double-fed motor was analyzed and relationship between stator current and rotor current of the motor was derived theoretically. Double-variable cycloconverter was used to provide frequency conversion excitation power for double-fed motor, and rotor current was controlled by controlling amplitude and frequency of output voltage of the converter. The impact of rotor current on stator power factor of double-fed motor was studied experimentally, and conclusions was derived that power factor of the motor can be adjusted by controlling rotor current.
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