MOTOR CONTROLLER AND COMPRESSOR USING IT

MOTOR CONTROLLER AND COMPRESSOR USING IT

PROBLEM TO BE SOLVED: To provide a motor controller in which the power loss of a filter capacitor is reduced, the size of the filter capacitor can be made small and the reliability is improved by reduction of the loss, down-sizing and reduction of the noise. SOLUTION: The motor controller comprises...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: AMANO KATSUYUKI, TOTSUKA HIDEKAZU, SAITO KATSUHIKO
Format: Patent
Sprache: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:PROBLEM TO BE SOLVED: To provide a motor controller in which the power loss of a filter capacitor is reduced, the size of the filter capacitor can be made small and the reliability is improved by reduction of the loss, down-sizing and reduction of the noise. SOLUTION: The motor controller comprises a rectifier circuit part 21 which rectifies the AC power, a high power factor converter 22 which improves the power factor of the power supply, a dry filter capacitor 24 which filters the output voltage from the converter 22, an inverter 25 which drives a motor 28, a DC bus voltage detection means 29 which detects the DC bus voltage, a control 27 which controls the inverter circuit 25 and the high power factor converter circuit 22 based on the DC bus voltage detected by the DC bus voltage detection means 29.