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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 8. Отображено 8.
10-08-2017 дата публикации

MOTOR DRIVING DEVICE AND HOME APPLIANCE HAVING SAME

Номер: KR1020170091975A
Автор: MOON, JUNG SONG, JEON, JONG HYUN, KIM, SANG YOUNG
Принадлежит:

The present invention relates to a motor driving device and a home appliance having the same. According to an embodiment of the present invention, the motor driving device comprises: a direct current (DC) terminal capacitor storing a direct current power; an inverter having three-phase top switching element and bottom switching element, by a switching operation, converting the direct current power from the DC terminal capacitor into an alternating current power, and outputting a converted alternating current power to a motor; and a control part controlling the inverter. The controlling part, by a spatial vector based pulse width variation control, controls the switching element in the inverter, and controls the switching element to operate as a first mode in which a zero vector is removed from a voltage vector. Therefore, the current flowing into the capacitor which is disposed in the DC terminal can be reduced. COPYRIGHT KIPO 2017 ...

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Номер записи: 1
21-06-2017 дата публикации

MOTOR DRIVING APPARATUS AND HOME APPLIANCE INCLUDING SAME

Номер: KR101749530B1
Автор: JEON, JONG HYUN, MOON, JUNG SONG, KIM, SANG YOUNG
Принадлежит: LG ELECTRONICS INC.

The present invention relates to a motor driving apparatus and a home appliance including the same. According to an embodiment of the present invention, a motor driving apparatus comprises: a direct current (DC) terminal capacitor storing DC power; an inverter having a three-phase upper arm switching element and a lower arm switching element, converting DC power from the DC terminal capacitor to alternating current (AC) power and outputting the converted AC power on a motor; and a control unit controlling the inverter. The control unit controls a switching element in the inverter by variable control of the pulse width based on a space vector, and controls to shift turn-on time with respect to at least one three-phase switching element among the three-phase upper arm switching elements in the inverter. Accordingly, current flowing in a capacitor arranged on the DC terminal. COPYRIGHT KIPO 2017 ...

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Номер записи: 2
02-07-2015 дата публикации

MOTOR DRIVING DEVICE AND AIR CONDITIONER INCLUDING SAME

Номер: KR1020150074755A
Автор: PARK, TAE YOUNG, MOON, JUNG SONG, KIM, SANG YOUNG
Принадлежит:

The present invention relates to a motor driving device and an air conditioner including the same. According to an embodiment of the present invention, the motor driving device comprises: a rectifying unit rectifying input alternating current power source; a boost converter increasing power rectified from the rectifying unit and outputting the same; a converter control unit compensating phase to input voltage from the input alternating current power source, and outputting a converter switching control signal to control a switching element in a boost converter based on the phase compensated input voltage; and an inverter having a plurality of switching elements and outputting the converted alternating current power source to a motor by using the voltage from the boost converter. Accordingly, the motor driving device using a capacitor of low capacity can reduce input current distortion. COPYRIGHT KIPO 2015 (735) Fluctuating voltage control unit (740) Redirection compensating unit (730) Current ...

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Номер записи: 3
08-03-2018 дата публикации

MOTOR DRIVING APPARATUS AND HOME APPLIANCE INCLUDING SAME

Номер: KR1020180024959A
Автор: MOON, JUNG SONG, PARK, TAE YOUNG, KIM, SANG YOUNG
Принадлежит:

The present invention relates to a motor driving apparatus and a home appliance having the same. The motor driving apparatus according to an embodiment of the present invention comprises a dc-terminal capacitor for storing DC power, an inverter which has a three-phase upper arm switching element and a lower arm switching element, converts DC power from the dc-terminal capacitor into AC power, by a switching operation, and outputting the converted AC power to a motor, and a control part for controlling the inverter. The control part controls the switching elements in the inverter by a space vector-based pulse width variable control, and shifts a turn-on time so as to control the change of first and second switching cycles continuous to one switching cycle. Accordingly, when the inverter is switched, noise can be reduced while reducing switching loss. COPYRIGHT KIPO 2018 (510) Generating a voltage command value based on an output current (520) Determining a position of a voltage vector corresponding ...

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Номер записи: 4
29-01-2018 дата публикации

모터 구동장치 및 이를 구비하는 홈 어플라이언스

Номер: KR0101822897B1
Автор: 문정송, 전종현, 김상영
Принадлежит: 엘지전자 주식회사

... 본 발명은 모터 구동장치 및 이를 구비하는 홈 어플라이언스에 관한 것이다. 본 발명의 실시예에 따른 모터 구동장치는, 직류 전원을 저장하는 dc단 커패시터와, 삼상의 상암 스위칭 소자와 하암 스위칭 소자를 구비하며, 스위칭 동작에 의해, dc단 커패시터로부터의 직류 전원을 교류 전원으로 변환하고, 변환된 교류 전원을 모터에 출력하는 인버터와, 인버터를 제어하는 제어부를 구비하고, 제어부는, 공간 벡터 기반의 펄스폭 가변 제어에 의해, 인버터 내의 스위칭 소자를 제어하며, 전압 벡터 내에 영 벡터가 제거된 제1 모드로 동작하도록 제어한다. 이에 따라, dc단에 배치되는 커패시터에 유입되는 전류를 저감할 수 있게 된다.

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Номер записи: 5
16-05-2018 дата публикации

모터 구동장치 및 이를 구비하는 홈 어플라이언스

Номер: KR0101858696B1
Автор: 문정송, 박태영, 김상영
Принадлежит: 엘지전자 주식회사

... 본 발명은 모터 구동장치 및 이를 구비하는 홈 어플라이언스에 관한 것이다. 본 발명의 실시예에 따른 모터 구동장치는, 직류 전원을 저장하는 dc단 커패시터와, 삼상의 상암 스위칭 소자와 하암 스위칭 소자를 구비하며, 스위칭 동작에 의해, dc단 커패시터로부터의 직류 전원을 교류 전원으로 변환하고, 변환된 교류 전원을 모터에 출력하는 인버터와, 인버터를 제어하는 제어부를 구비하고, 제어부는, 공간 벡터 기반의 펄스폭 가변 제어에 의해, 인버터 내의 스위칭 소자를 제어하되, 턴 온 시간을 시프트시켜, 연속하는 제1 및 제2 스위칭 주기가 하나의 스위칭 주기로 가변되도록 제어한다. 이에 따라, 인버터 스위칭시, 스위칭 손실을 저감하면서, 소음을 저감할 수 있게 된다.

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Номер записи: 6
19-09-2016 дата публикации

MOTOR DRIVING DEVICE AND AIR CONDITIONER INCLUDING MOTOR DRIVING DEVICE

Номер: KR1020160107670A
Автор: MOON, JUNG SONG, KIM, SANG YOUNG, AN, JOON SIK
Принадлежит:

The present invention relates to a motor driving device and an air conditioner including the same. The motor driving device according to an embodiment of the present invention comprises: a rectification unit which rectifies input alternating current power; a boost converter which raises the voltage of the power rectified from the rectification unit and outputs the power; a capacitor which stores DC stage voltage pulsating from the boost converter; an output current detection unit which detects output current flowing in a motor; a DC stage voltage detection unit which detects pulsation DC stage voltage at both ends of the capacitor; an inverter which includes a plurality switching devices, and outputs the converted alternating current power to the motor by using the pulsation DC stage voltage; and a control which controls the inverter on the basis of the detected instantaneous value of the pulsation DC stage voltage and the output current. Accordingly, it is possible to improve driving efficiency ...

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Номер записи: 7
04-05-2016 дата публикации

MOTOR DRIVING DEVICE AND AIR CONDITIONER INCLUDING SAME

Номер: KR1020160048426A
Автор: KIM, KYUNG MIN, KIM, SANG YOUNG, MOON, JUNG SONG
Принадлежит:

The present invention relates to a motor driving device and an air conditioner including the same. According to an embodiment of the present invention, the motor driving device includes: a rectifier which rectifies an input AC power source; a boost converter which boosts and outputs the power source rectified by the rectifier; a capacitor which stores a ripple voltage outputted from the boost converter; an inverter which includes multiple switching devices and uses the ripple voltage to output the converted AC power to a motor; and a converter control unit which controls the boost converter to reduce a peak value of the ripple voltage by using high frequency waves corresponding to the phase of the input voltage. Accordingly, the motor driving device, which uses the boost converter and the low capacity capacitor, can reduce the maximum voltage on a DC end. COPYRIGHT KIPO 2016 (705) Phase detection unit (722) Vaild value computation unit (725) Voltage control unit (727) Harmonic wave generation ...

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Номер записи: 8