Frequency converter peak voltage absorbing device and system

The utility model discloses a frequency converter peak voltage absorbing device and system; the absorbing device is connected in parallel with the motor; the absorbing device comprises a peak voltage detector, a switch element, and an electric energy-heat energy converter; the switch element is conn...

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Bibliographische Detailangaben
Hauptverfasser:	YANG JISHEN, SHEN ZHIDA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The utility model discloses a frequency converter peak voltage absorbing device and system; the absorbing device is connected in parallel with the motor; the absorbing device comprises a peak voltage detector, a switch element, and an electric energy-heat energy converter; the switch element is connected between a power input end of the motor and the electric energy-heat energy converter; the peak voltage detector detects the peak voltage of the power input end of the motor, when the peak voltage exceeds a detection threshold value, the peak voltage detector can trigger the conduction of the switch element, so the electric energy-heat energy converter can receive the peak voltage of the power input end of the motor, and the voltage is converted into heat energy. The frequency converter peak voltage absorbing device and system is simple in structure, low in cost, convenient in installation, no voltage drop is generated, torque of the motor is not affected; simultaneously the frequency converter is effectively