JP2777605B

PURPOSE:To control a converter to hold its output voltage at an optimum value by correcting an input voltage command of the converter by a quantity of state of a load. CONSTITUTION:The AC power of an AC power source 10 is converted by a converter 30 into DC power, and the DC power is converted by an...

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Hauptverfasser:	NANTO KENJI, SUZUKI TOSHIO, SAKAI KEIJIRO, MUTO NOBUYOSHI, FUJII HIROSHI
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 OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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creator	NANTO KENJI SUZUKI TOSHIO SAKAI KEIJIRO MUTO NOBUYOSHI FUJII HIROSHI
description	PURPOSE:To control a converter to hold its output voltage at an optimum value by correcting an input voltage command of the converter by a quantity of state of a load. CONSTITUTION:The AC power of an AC power source 10 is converted by a converter 30 into DC power, and the DC power is converted by an inverter 50 into AC power output to be supplied to an AC motor 60. The inverter 50 is controlled through a PWM control circuit by a magnetic flux command PHIS and an inverter angular frequency command omega1S given from potentiometers 90, 91 respectively. In accordance with the effective component current Iq detected by an effective component current detector 70, a converter output voltage command EDR is corrected. The corrected value is compared with the converter voltage in a subtractor 110 through a converter output voltage command generator 100. The output of the subtractor 110 is inputted to an operational amplifier 130, whose output controls the converter 30 to hold its output voltage in the optimum value.
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CONSTITUTION:The AC power of an AC power source 10 is converted by a converter 30 into DC power, and the DC power is converted by an inverter 50 into AC power output to be supplied to an AC motor 60. The inverter 50 is controlled through a PWM control circuit by a magnetic flux command PHIS and an inverter angular frequency command omega1S given from potentiometers 90, 91 respectively. In accordance with the effective component current Iq detected by an effective component current detector 70, a converter output voltage command EDR is corrected. The corrected value is compared with the converter voltage in a subtractor 110 through a converter output voltage command generator 100. 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CONSTITUTION:The AC power of an AC power source 10 is converted by a converter 30 into DC power, and the DC power is converted by an inverter 50 into AC power output to be supplied to an AC motor 60. The inverter 50 is controlled through a PWM control circuit by a magnetic flux command PHIS and an inverter angular frequency command omega1S given from potentiometers 90, 91 respectively. In accordance with the effective component current Iq detected by an effective component current detector 70, a converter output voltage command EDR is corrected. The corrected value is compared with the converter voltage in a subtractor 110 through a converter output voltage command generator 100. The output of the subtractor 110 is inputted to an operational amplifier 130, whose output controls the converter 30 to hold its output voltage in the optimum value.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects	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 OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
title	JP2777605B
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