WO2019066324A1 - 위상 제어를 이용한 전압 안정화장치 및 방법 - Google Patents
위상 제어를 이용한 전압 안정화장치 및 방법 Download PDFInfo
- Publication number
- WO2019066324A1 WO2019066324A1 PCT/KR2018/010743 KR2018010743W WO2019066324A1 WO 2019066324 A1 WO2019066324 A1 WO 2019066324A1 KR 2018010743 W KR2018010743 W KR 2018010743W WO 2019066324 A1 WO2019066324 A1 WO 2019066324A1
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- WO
- WIPO (PCT)
- Prior art keywords
- voltage
- control
- phase
- switching
- unit
- Prior art date
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
- G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
- G05F1/45—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load
- G05F1/455—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load with phase control
Definitions
- the present invention relates to a voltage stabilization apparatus, and more particularly, to a voltage stabilization apparatus that uses a phase control to supply a stable voltage to a load despite a change in an input voltage, and a voltage stabilization method using the same.
- the voltage stabilization method using phase control includes the steps of measuring an effective voltage of an input AC voltage, comparing the measured effective voltage with a target control voltage value, and comparing the measured effective voltage with a target control voltage value And performing a phase off control to generate an inductive kickback.
- FIG. 1 shows an embodiment of phase on control.
- FIG. 1 shows an embodiment of phase on control.
- FIG. 4 illustrates a voltage stabilization apparatus using phase control according to an embodiment of the present invention.
- Fig. 6 shows an embodiment of the discharge circuit portion 47.
- the switching element 472 of the discharge circuit unit 47 maintains the switching on state immediately after the OFF control time T72 and performs the switching off operation at the second zero crossing time T73.
- the control unit 46 controls the switching unit 472 of the discharging circuit unit 47 to perform the switching-on operation in order to prevent the inductive kickback caused thereby . Therefore, when the switching unit 45 performs the switching-off operation, the counter-electromotive force energy generated by the switching-off operation of the switching unit 45 is destroyed through the discharging device 471 of the discharging circuit unit 47.
- the switching element 472 of the discharge circuit unit 47 maintains the switching-on state immediately before or immediately after the OFF control timing T82, and performs the switching-off operation at the second zero crossing timing T83.
- the phase off control When the measured input effective voltage is higher than the target control voltage, it is determined whether the phase off control needs to be performed above the reference voltage (S95). When the phase off control is performed below the reference voltage, The inductive kickback is removed through the discharging circuit unit 47 (S96).
- control unit 46 monitors the voltage output through the output voltage measurement unit 48 in real time to check whether the voltage stabilization control is within the target control voltage.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims (5)
- 입력되는 교류 전압의 실효 전압을 측정하는 입력전압측정부;위상 오프 제어 시점에서 발생하는 인덕티브 킥백을 제거하는 방전회로부;입력되는 교류 전압을 부하에 공급하거나 차단하는 스위칭부; 및상기 스위칭부의 스위칭 동작을 이용하여 위상 오프 제어를 수행하되, 상기 입력전압 측정부에서 측정된 실효 전압 값에 따라 상기 스위칭부 및 상기 방전회로부를 제어하는 제어부를 포함하여 이루어지는 위상 제어를 이용한 전압 안정화장치.
- 제 1 항에 있어서,상기 위상 오프 제어시점의 전압이 기준전압 이상인 경우, 상기 제어부의 제어에 따라 전압 강하를 수행하는 전압분배부를 더 포함하여 이루어지는 위상 제어를 이용한 전압 안정화장치.
- 입력되는 교류 전압의 실효 전압을 측정하는 단계;상기 측정된 실효 전압을 목표 제어 전압 값과 비교하는 단계; 및상기 측정된 실효전압이 목표 제어 전압 값보다 작은 경우에, 위상 오프 제어를 수행하여 인덕티브 킥백을 발생시키는 단계를 포함하여 이루어지는 위상 제어를 이용한 전압 안정화방법.
- 제 3 항에 있어서,상기 측정된 실효 전압이 목표 제어 전압 값보다 큰 경우에, 위상 오프 제어를 수행하되, 위상 오프 제어에 의해 발생하는 인덕티브 킥백을 제거하는 단계를 포함하여 이루어지는 위상 제어를 이용한 전압 안정화방법.
- 제 4 항에 있어서,상기 위상 오프 제어를 수행하는 시점의 전압이 기준전압보다 높은 경우에, 전압강하를 수행하는 단계를 더 포함하는 위상 제어를 이용한 전압 안정화방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170125167A KR101839786B1 (ko) | 2017-09-27 | 2017-09-27 | 위상 제어를 이용한 전압 안정화장치 및 방법 |
KR10-2017-0125167 | 2017-09-27 |
Publications (1)
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WO2019066324A1 true WO2019066324A1 (ko) | 2019-04-04 |
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PCT/KR2018/010743 WO2019066324A1 (ko) | 2017-09-27 | 2018-09-13 | 위상 제어를 이용한 전압 안정화장치 및 방법 |
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KR (1) | KR101839786B1 (ko) |
WO (1) | WO2019066324A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003315388A (ja) * | 2002-04-18 | 2003-11-06 | Matsushita Electric Works Ltd | 位相調整装置及び位相調整装置を用いた電力計測装置 |
JP2008181790A (ja) * | 2007-01-25 | 2008-08-07 | Matsushita Electric Works Ltd | 位相制御装置 |
JP2012221497A (ja) * | 2011-04-06 | 2012-11-12 | Tai-Her Yang | 交流電圧の位相角を調整する調整回路 |
KR20160080719A (ko) * | 2014-12-30 | 2016-07-08 | 서울대학교산학협력단 | 한시적으로 동작하는 전력 시스템과 연결되도록 구성된 전력 제어 장치 및 전력 제어 방법 |
KR20160121851A (ko) * | 2015-04-13 | 2016-10-21 | 한국이미지시스템(주) | 전기기기를 위한 전력 감소장치 |
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2017
- 2017-09-27 KR KR1020170125167A patent/KR101839786B1/ko active IP Right Grant
-
2018
- 2018-09-13 WO PCT/KR2018/010743 patent/WO2019066324A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003315388A (ja) * | 2002-04-18 | 2003-11-06 | Matsushita Electric Works Ltd | 位相調整装置及び位相調整装置を用いた電力計測装置 |
JP2008181790A (ja) * | 2007-01-25 | 2008-08-07 | Matsushita Electric Works Ltd | 位相制御装置 |
JP2012221497A (ja) * | 2011-04-06 | 2012-11-12 | Tai-Her Yang | 交流電圧の位相角を調整する調整回路 |
KR20160080719A (ko) * | 2014-12-30 | 2016-07-08 | 서울대학교산학협력단 | 한시적으로 동작하는 전력 시스템과 연결되도록 구성된 전력 제어 장치 및 전력 제어 방법 |
KR20160121851A (ko) * | 2015-04-13 | 2016-10-21 | 한국이미지시스템(주) | 전기기기를 위한 전력 감소장치 |
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