MOTOR DRIVING INVERTER CONTROL DEVICE AND AIR CONDITIONER USE REACTOR AND CONDENSER OF SMALL CAPACITY

• Main Authors: MATSUSHIRO HIDEO, SUGIMOTO TOMOHIRO, KAWAJI MITSUO
• Format: Patent
• Language: English; Korean
• Published: 16.10.2004
• Edition: 7
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

PURPOSE: A motor driving inverter control device and an air conditioner using the same are provided to be small, light, and cheap and to drive continuously a motor by operating an inverter for keeping constant voltage applied on the motor by a motor voltage order correction unit even if DC(Direct Current) voltage of the inverter is changed. CONSTITUTION: A motor driving inverter control device is composed of an AC(Alternating Current) power unit(1) for supplying AC power; a rectification circuit(2) comprising diode bridges for rectifying and converting the AC power into DC power; a reactor(11) of the predetermined small capacity coupled to the rectification circuit to correct power-factor of the AC power; an inverter(3) for driving a motor(4) by converting the DC power into AC power; a condenser(12) of the predetermined small capacity coupled between DC buses of the inverter to absorb regenerative energy from the motor; a motor voltage order generating unit(14) for forming a motor voltage order value of the motor according to a speed order value of the motor applied from the outside; a PN voltage detecting unit(15) for detecting a DC voltage value of the inverter; a PN voltage correction unit(16) for outputting a PN voltage correction coefficient by drawing the ratio of the DC voltage detection value of the inverter obtained by the PN voltage detecting unit, for a pre-set DC voltage reference value of the inverter; and a motor voltage order correction unit(17) for generating the motor voltage order correction value of the motor.