KR20040042618A - Compressor Operating System - Google Patents
Compressor Operating System Download PDFInfo
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- KR20040042618A KR20040042618A KR1020020071179A KR20020071179A KR20040042618A KR 20040042618 A KR20040042618 A KR 20040042618A KR 1020020071179 A KR1020020071179 A KR 1020020071179A KR 20020071179 A KR20020071179 A KR 20020071179A KR 20040042618 A KR20040042618 A KR 20040042618A
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- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 230000018199 S phase Effects 0.000 claims description 13
- 229910001219 R-phase Inorganic materials 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
본 발명은 압축기 구동시스템에 관한 것으로서 압축기가 구동 가능하도록 3상 전류를 상기 압축기로 출력하는 인버터모듈과, 상기 인버터모듈이 구동 가능하도록 상기 인버터 모듈로 R,S,T 상의 전압을 인가하는 전압부를 포함하여 구성되는 압축기 구동시스템에 있어서, 상기 압축기 구동시스템은 상기 전압부에서 상기 인버터모듈로 R,S,T 상의 전압을 공급하는 공급라인에 연결되며 상기 인버터모듈에 내장된 커패시터의 충전 정도에 따라 온/오프되는 복수개의 스위치로 이루어진 스위칭부로 구성되어, 압축기에서 전류가 누설됨에 따라 발생하는 대기전력의 소모를 방지하는 동시에 압축기 구동시스템의 안정성을 확보할 수 있는 효과가 있다.The present invention relates to a compressor driving system, and an inverter module for outputting a three-phase current to the compressor so that the compressor can be driven, and a voltage unit for applying voltages of R, S, and T to the inverter module to enable the inverter module to be driven. In the compressor drive system comprising a, the compressor drive system is connected to a supply line for supplying a voltage on the R, S, T from the voltage unit to the inverter module, depending on the degree of charge of the capacitor embedded in the inverter module It is composed of a switching unit consisting of a plurality of switches on / off, it is possible to prevent the consumption of standby power generated by leakage of current in the compressor and at the same time has the effect of ensuring the stability of the compressor drive system.
Description
본 발명은 압축기 구동시스템에 관한 것으로서, 특히 압축기를 구동하는 인버터모듈 중 3상 전압에 의해 구동되는 인버터모듈에서 발생하는 누설전류를 제거할 수 있는 압축기 구동시스템에 관한 것이다.The present invention relates to a compressor driving system, and more particularly, to a compressor driving system capable of removing a leakage current generated in an inverter module driven by a three-phase voltage among inverter modules driving a compressor.
압축기 구동시스템은 외부에서 입력되는 교류 전원을 DC 전압이나 3상 전압으로 변환한 후, 도 1에 도시된 바와 같이 구동하고자 하는 압축기(C)로 3상 전류(R,S,T상)를 공급함으로서 압축기를 필요에 따라 제어하는 것이 일반적이다.The compressor driving system converts an AC power input from the outside into a DC voltage or a three-phase voltage, and then supplies three-phase currents R, S, and T phases to the compressor C to be driven as shown in FIG. 1. It is common to control the compressor as necessary.
특히, 상기한 압축기 구동시스템 중 압축기로 3상 전류를 공급하는 인버터모듈은 보통 DC 전압이나 3상 전압으로 제어되는데, 3상 전압이 입력되는 인버터모듈의 경우 도 2에 도시된 바와 같이 그 내부에 다이오드(D1)나 커패시터(C1), 3상 전류 공급부(2)를 포함하여 구성된다.In particular, the inverter module for supplying a three-phase current to the compressor of the compressor drive system is usually controlled by a DC voltage or a three-phase voltage, in the case of the inverter module is a three-phase voltage input as shown in Figure 2 The diode D1, the capacitor C1, and the three-phase current supply part 2 are comprised.
즉, 상기 인버터모듈(1)로 공급되는 3상 전압이 R,S,T 상인 경우 상기 R상 전압의 공급라인은 항상 상기 인버터모듈(1)과 연결되어 있다. 반면, 상기 S상 전압 및 T상 전압의 공급라인은 도시된 바와 같이 S 상의 공급라인과 직렬 연결된 S상 직렬스위치(S1)와, T 상의 공급라인과 직렬 연결된 T상 저항(T1)과, 상기 T상 저항(T1)과 직렬 연결된 T상 직렬스위치(T2)와, 상기 T상 저항(T2)과 병렬 연결된 T상 병렬스위치(T3)가 연결되어 있다. 여기서, 상기 S상과 T상의 상기 스위치(S1,T2,T3)가 평시에는 오프되어 있다가 압축기(C)가 구동 시에만 온 된다.That is, when the three-phase voltage supplied to the inverter module 1 is R, S, T phase, the supply line of the R phase voltage is always connected to the inverter module 1. On the other hand, the supply line of the S-phase voltage and the T-phase voltage is an S-phase series switch (S1) connected in series with the supply line of the S phase, a T-phase resistor (T1) connected in series with the supply line of the T phase, and The T-phase series switch T2 connected in series with the T-phase resistor T1 and the T-phase parallel switch T3 connected in parallel with the T-phase resistor T2 are connected. Here, the switches S1, T2, and T3 of the S phase and the T phase are normally turned off, but are turned on only when the compressor C is driven.
그러나, 상기와 같은 압축기 구동시스템은 R상의 공급라인이 인버터모듈(1)과 항시 연결되어 있으므로 점선 화살표에 도시된 바와 같이 압축기에서 누설전류가 발생한 경우 그 대기전력이 소모된다는 문제점이 있다. 또한, 누설전류가 발생하지 않더라도 상기 커패시터에 DC 전압이 충전되므로 압축기 구동시스템의 안정성이 문제된다.However, the compressor driving system as described above has a problem in that the standby power is consumed when a leakage current occurs in the compressor as shown in a dotted arrow because the supply line on the R is always connected to the inverter module 1. In addition, even if a leakage current does not occur, since the DC voltage is charged to the capacitor, the stability of the compressor driving system is problematic.
본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 그 목적은 3상 전압을 공급받아 압축기를 구동시키는 압축기 구동시스템에서 누설전류로 인한 대기전력의 소모를 방지하고 그 안정성을 증가시킬 수 있는 압축기 구동시스템을 제공하는데 있다.The present invention has been made to solve the above-mentioned problems of the prior art, the object of which is to prevent the consumption of standby power due to leakage current in the compressor drive system that is supplied with a three-phase voltage to drive the compressor to increase its stability To provide a compressor drive system that can be.
도 1은 압축기의 외관이 도시된 도,1 is a view showing the appearance of a compressor;
도 2는 종래 압축기 구동시스템의 구성이 도시된 도,Figure 2 is a diagram showing the configuration of a conventional compressor drive system,
도 3은 본 발명에 따른 압축기 구동시스템의 구성이 도시된 도이다.3 is a diagram illustrating a configuration of a compressor driving system according to the present invention.
<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>
10 : 인버터모듈 11 : 3상전류 공급부10: inverter module 11: three-phase current supply unit
20 : 스위칭부20: switching unit
상기한 과제를 해결하기 위한 본 발명에 의한 압축기 구동시스템의 특징에 따르면, 압축기가 구동 가능하도록 3상 전류를 상기 압축기로 출력하는 인버터모듈과, 상기 인버터모듈이 구동 가능하도록 상기 인버터 모듈로 R,S,T 상의 전압을 인가하는 전압부를 포함하여 구성되는 압축기 구동시스템에 있어서, 상기 압축기 구동시스템은 상기 전압부에서 상기 인버터모듈로 R,S,T 상의 전압을 공급하는 공급라인에 연결되며 상기 인버터모듈 내장된 커패시터의 충전 정도 및 상기 인버터모듈로의 3상 전압 공급여부에 따라 온/오프되는 복수개의 스위치로 이루어진 스위칭부로 구성된다.According to a feature of the compressor driving system according to the present invention for solving the above problems, an inverter module for outputting a three-phase current to the compressor to drive the compressor, and the inverter module to drive the inverter module R, In the compressor driving system comprising a voltage unit for applying a voltage on the S, T, the compressor driving system is connected to a supply line for supplying the voltage on the R, S, T from the voltage unit to the inverter module and the inverter It consists of a switching unit consisting of a plurality of switches on / off depending on the degree of charge of the capacitor embedded in the module and whether the three-phase voltage supplied to the inverter module.
이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 발명에 의한 압축기 구동시스템은 도 3에 도시된 바와 같이, 압축기(C)와, 상기 압축기(C)가 구동 가능하도록 상기 압축기(C)로 마이컴(미도시) 등의 제어에 따라 3상 전류를 출력하는 인버터모듈(10)을 포함하여 구성되며, 상기 인버터모듈(10)이 구동 가능하도록 상기 인버터모듈(10)로 R,S,T의 3상 전압이 입력된다.As shown in FIG. 3, the compressor driving system according to the present invention has a three-phase current under the control of a compressor C and a microcomputer (not shown) to the compressor C such that the compressor C can be driven. It is configured to include an inverter module 10 for outputting, the three-phase voltage of R, S, T is input to the inverter module 10 so that the inverter module 10 can be driven.
또한, 본 발명에 의한 압축기 구동시스템은 상기 인버터모듈(10)로 R,S,T의 3상 전압이 입력 시 상기 압축기(C)에서 발생하는 누설전류로 인한 대기전력의 소모가 방지되도록 온/오프되는 복수개의 스위치로 구성되는 스위칭부(20)를 더 포함하여 구성된다.In addition, the compressor driving system according to the present invention is on / to prevent the consumption of standby power due to leakage current generated in the compressor (C) when the three-phase voltage of R, S, T to the inverter module 10 is inputted It further comprises a switching unit 20 composed of a plurality of switches to be off.
여기서, 상기 인버터모듈(10)은 도 3에 도시된 바와 같이, 다이오드(D10)와, DC 전압이 충전 가능한 커패시터(C10) 및 상기 압축기(C)로 실질적으로 3상 전류를 공급하는 3상전류 공급부(11)를 포함하여 구성된다. 상기 3상전류 공급부(11)는 통상 압축기 구동시스템의 마이컴에 의하여 제어된다. 상기 마이컴은 상기 인버터모듈과 연결된 일반적인 압축기 구동시스템의 마이컴으로서 상기 마이컴의 제어신호에 따라 상기 3상전류 공급부(11)를 통해 상기 압축기(C)로 공급되는 3상 전류가 결정된다.Here, the inverter module 10, as shown in Figure 3, a three-phase current supply unit for supplying a substantially three-phase current to the diode (D10), the capacitor (C10) chargeable DC voltage and the compressor (C) (11) is comprised. The three-phase current supply unit 11 is usually controlled by the microcomputer of the compressor drive system. The microcomputer is a microcomputer of a general compressor driving system connected to the inverter module, and the three-phase current supplied to the compressor C is determined through the three-phase current supply unit 11 according to the control signal of the microcomputer.
따라서, 상기 3상전류 공급부(11)가 3상 전류를 상기 압축기(C)로 상기 마이컴이 제어신호에 의해 제어함에 따라, 상기 압축기(C)는 궁극적으로 상기 마이컴의 제어신호에 의하여 그 구동이 제어된다.Thus, as the three-phase current supply unit 11 controls the three-phase current to the compressor (C) by the micom control signal, the compressor (C) is ultimately controlled by the control signal of the micom do.
또한, 상기 스위칭부(20)는 도시된 바와 같이 상기 압축기 구동시스템으로 3상 전원을 공급하는 전원과 연결되는 3상 전압 공급라인에 연결되며, 3상 전압 공급라인 중 R상 전압이 공급되는 공급라인에 직렬 연결되는 R상 저항(R21)과, 상기 R상 저항(R21)과 직렬 연결되는 R상 직렬스위치(R22)와, 상기 R상 저항(R21)과 병렬 연결되는 R상 병렬스위치(R23)로 구성된다.In addition, the switching unit 20 is connected to a three-phase voltage supply line connected to a power supply for supplying three-phase power to the compressor driving system, as shown, the supply of the R-phase voltage of the three-phase voltage supply line An R-phase resistor R21 connected in series to a line, an R-phase series switch R22 connected in series with the R-phase resistor R21, and an R-phase parallel switch R23 connected in parallel with the R-phase resistor R21. It is composed of
그 외에도, 상기 스위칭부(20)는 상기 3상 전압 공급라인 중 S상 전압이 공급되는 공급라인에 직렬 연결되는 S상 직렬스위치(S21)와, 상기 3상 전압 공급라인 중 T상 전압이 공급되는 공급라인에 직렬 연결되는 T상 저항(T21)과, 상기 T상 저항(T21)과 직렬 연결되는 T상 직렬스위치(T22)와, 상기 T상 저항(T21)과 병렬 연결되는 T상 병렬스위치(T23)로 구성된다.In addition, the switching unit 20 is provided with an S-phase series switch S21 connected in series to a supply line to which an S-phase voltage is supplied among the three-phase voltage supply lines, and a T-phase voltage of the three-phase voltage supply lines. T-phase resistor T21 connected in series to the supply line, a T-phase series switch T22 connected in series with the T-phase resistor T21, and a T-phase parallel switch connected in parallel with the T-phase resistor T21. It consists of (T23).
여기서, 상기 인버터모듈(10)로 전압이 인가되기 전에 상기 R상 병렬스위치(R23), S상 직렬스위치(S21), T상 병렬스위치(T23)는 오프된 상태이며, 상기 R상 직렬스위치(R22), T상 직렬스위치(T22)는 대기상태이다. 따라서, 상기 인버터모듈(10)로 인가되는 전압은 없으며 누설전류가 차단되므로 대기전력의 소모가 방지된다.Here, before the voltage is applied to the inverter module 10, the R phase parallel switch R23, the S phase series switch S21, and the T phase parallel switch T23 are in an off state, and the R phase series switch ( R22) and the T-phase series switch T22 are in a standby state. Therefore, no voltage is applied to the inverter module 10 and leakage current is blocked, thereby preventing the consumption of standby power.
그 후, 상기 인버터모듈(10)로 전압이 인가되는 경우 상기 R상 직렬스위치(R22)와, T상 직렬스위치(T22)는 온되며, 상기 R상 직렬스위치(R22) 및 T상 직렬스위치(T22)가 온됨에 따라 상기 인터터모듈(10) 내부에 존재하는 커패시터(C10)에는 DC 전압이 충전된다.Thereafter, when voltage is applied to the inverter module 10, the R-phase series switch R22 and the T-phase series switch T22 are turned on, and the R-phase series switch R22 and the T-phase series switch ( As the T22 is turned on, the DC voltage is charged in the capacitor C10 existing in the intermodule 10.
이 때, 상기 인버터모듈(10)을 제어하는 마이컴은 상기 커패시터(C10)에 충전되는 DC 전압의 비율을 측정한다. 이는 압축기 구동시스템의 안정성을 위한 것으로 상기 마이컴은 상기 커패시터(C10)에 DC 전압이 기준비율, 바람직하게는 60% 이상 충전되는 경우 상기 복수개의 스위치(R22,R23,S21,T22,T23)의 온/오프를 제어한다.At this time, the microcomputer controlling the inverter module 10 measures the ratio of the DC voltage charged in the capacitor (C10). This is for the stability of the compressor drive system. The microcomputer turns on the plurality of switches R22, R23, S21, T22, and T23 when the DC voltage is charged to the capacitor C10 at a reference ratio, preferably 60% or more. Control on / off.
즉, 상기 마이컴은 상기 커패시터(C10)에 DC 전압이 60% 이상 충전된 경우 상기 R상 직렬스위치(R22) 및 T상 직렬스위치(T22)를 오프시키는 동시에 상기 R상 병렬스위치(R23), T상 병렬스위치(T23) 및 S상 직렬스위치(S21)를 온시킨다.That is, when the DC voltage is charged to the capacitor C10 by 60% or more, the microcomputer turns off the R-phase series switch R22 and the T-phase series switch T22 and at the same time, the R-phase parallel switch R23 and T. The phase parallel switch T23 and the S phase series switch S21 are turned on.
상기와 같이 구성되는 본 발명의 압축기 구동시스템은 압축기가 구동 가능하도록 3상 전류를 상기 압축기로 출력하는 인버터모듈과, 상기 인버터모듈이 구동 가능하도록 상기 인버터 모듈로 R,S,T 상의 전압을 인가하는 전압부를 포함하여 구성되는 압축기 구동시스템에 있어서, 상기 압축기 구동시스템은 상기 전압부에서 상기 인버터모듈로 R,S,T 상의 전압을 공급하는 공급라인에 연결되며 상기 인버터모듈에 내장된 커패시터의 충전 정도에 따라 온/오프되는 복수개의 스위치로 이루어진 스위칭부로 구성되어, 압축기에서 전류가 누설됨에 따라 발생하는 대기전력의 소모를 방지하는 동시에 압축기 구동시스템의 안정성을 확보할 수 있는 효과가 있다.Compressor drive system of the present invention configured as described above is applied to the inverter module for outputting the three-phase current to the compressor to drive the compressor, and the voltage on the R, S, T to the inverter module to drive the inverter module In the compressor driving system is configured to include a voltage unit, the compressor driving system is connected to a supply line for supplying a voltage on the R, S, T from the voltage unit to the inverter module, the charge of the capacitor embedded in the inverter module It is composed of a switching unit consisting of a plurality of switches on / off depending on the degree, there is an effect that can prevent the consumption of standby power caused by leakage of current in the compressor and at the same time ensure the stability of the compressor drive system.
Claims (4)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020071179A KR20040042618A (en) | 2002-11-15 | 2002-11-15 | Compressor Operating System |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020020071179A KR20040042618A (en) | 2002-11-15 | 2002-11-15 | Compressor Operating System |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100924590B1 (en) * | 2003-05-12 | 2009-10-30 | 엘지전자 주식회사 | Compressor drive system and drive method |
| KR101272078B1 (en) * | 2012-12-27 | 2013-06-07 | 김영덕 | Heater jacket monitoring device and heater jacket with the same |
| KR101340966B1 (en) * | 2006-05-24 | 2013-12-13 | 페어차일드코리아반도체 주식회사 | 3 phase inverter module, motor driving apparatus using the same, and inverter integrated circuit package |
| WO2023163349A1 (en) * | 2022-02-24 | 2023-08-31 | 한온시스템 주식회사 | Residual voltage control apparatus and electric compressor including same |
-
2002
- 2002-11-15 KR KR1020020071179A patent/KR20040042618A/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100924590B1 (en) * | 2003-05-12 | 2009-10-30 | 엘지전자 주식회사 | Compressor drive system and drive method |
| KR101340966B1 (en) * | 2006-05-24 | 2013-12-13 | 페어차일드코리아반도체 주식회사 | 3 phase inverter module, motor driving apparatus using the same, and inverter integrated circuit package |
| KR101272078B1 (en) * | 2012-12-27 | 2013-06-07 | 김영덕 | Heater jacket monitoring device and heater jacket with the same |
| WO2023163349A1 (en) * | 2022-02-24 | 2023-08-31 | 한온시스템 주식회사 | Residual voltage control apparatus and electric compressor including same |
| US12535072B2 (en) | 2022-02-24 | 2026-01-27 | Hanon Systems | Residual voltage controller and electric compressor including the same |
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