KR100774306B1 - Method for controlling an elevator driving converter system - Google Patents

Method for controlling an elevator driving converter system Download PDF

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Publication number
KR100774306B1
KR100774306B1 KR1020060084996A KR20060084996A KR100774306B1 KR 100774306 B1 KR100774306 B1 KR 100774306B1 KR 1020060084996 A KR1020060084996 A KR 1020060084996A KR 20060084996 A KR20060084996 A KR 20060084996A KR 100774306 B1 KR100774306 B1 KR 100774306B1
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South Korea
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input power
motor
converter system
voltage source
power
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KR1020060084996A
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Korean (ko)
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최윤영
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현대엘리베이터주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/0407—Driving gear ; Details thereof, e.g. seals actuated by an electrical linear motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
    • B66B1/302—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor for energy saving

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Elevator Control (AREA)

Abstract

A method for controlling an elevator driving converter system is provided to reduce power consumption and make the convert system smaller. 3-phase input power is detected(ST-2) in order to control a converter system that rectify the 3-phase input power to be supplied to a motor. It is determined if the voltage source is a positive input voltage source(ST-4). Switches are selectively operated according to the determination result. If the voltage source is the positive input voltage source, energy is supplied to the motor and thus a switch control signal is output such that the motor is driven. If the voltage source is a negative input voltage source, the switch control signal is output such that energy is retrieved from the motor.

Description

엘리베이터 구동용 컨버터시스템의 제어방법{Method for controlling an elevator driving converter system} Method for controlling an elevator driving converter system

도 1은 본 발명에 따른 엘리베이터 구동용 컨버터시스템의 개략적인 블록구성도이다.1 is a schematic block diagram of an elevator drive converter system according to the present invention.

도 2는 도 1의 구체적인 회로구성도이다.FIG. 2 is a detailed circuit diagram of FIG. 1.

도 3의 도 2의 스위칭 파형을 나타낸 도면이다.3 is a diagram illustrating a switching waveform of FIG. 2.

도 4는 본 발명에 따른 엘리베이터 구동용 컨버터시스템에서의 동작을 나타내는 흐름도이다.4 is a flowchart showing the operation of the elevator drive converter system according to the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

200: 전원공급부200: power supply

210: 센싱부210: sensing unit

220: 필터부220: filter unit

230: 양방향정류회로제어부230: bidirectional rectifier circuit control unit

240: 양방향정류회로부240: bidirectional rectifier circuit

260: 스위칭부260: switching unit

본 발명은 엘리베이터 구동용 컨버터시스템의 제어방법에 관한 것으로, 특히 컨버터부를 절연IGBT입력전원을 센싱하여 컨버터부에 연결된 게이트구동회로를 통해 컨버터부를 제어함으로써 엘리베이터 구동시에는 다이오드를 통해 DC전원을 생성하고 회생시에는 IGBT의 스위칭 제어를 통해 에너지를 전원측으로 환원함으로써 전력량을 감소시킬 수 있도록 하는 엘리베이터 구동용 컨버터시스템의 제어방법에 관한 것이다.The present invention relates to a control method of an elevator drive converter system, and in particular, the converter unit senses an insulated IGBT input power to control the converter unit through a gate driving circuit connected to the converter unit to generate DC power through a diode during elevator operation. In the regeneration, the present invention relates to a control method of an elevator drive converter system capable of reducing the amount of power by reducing energy to the power source through switching control of the IGBT.

엘리베이터 구동용 인버터에서 3상 다이오드 정류회로를 이용하여 교류(AC)전원을 직류(DC)전원으로 정류하는 방식은 에너지 회생이 불가능하여 제동저항이 필요하고 에너지 저장소자인 대용량의 전해 캐패시터가 사용되며 초기충전 회로를 필수적으로 필요로 하게 된다. 이러한 전해 캐패시터는 수명문제 뿐만아니라 입력전원단 전류의 고조파를 증대시키는 문제점이 있었다.In the inverter driving inverter, the method of rectifying AC power to DC power using three-phase diode rectifier circuit is impossible to regenerate energy, which requires braking resistance and uses a large capacity electrolytic capacitor which is an energy reservoir. There is a need for a charging circuit. The electrolytic capacitor has a problem of increasing the harmonics of the input power supply current as well as the lifetime problem.

또한 초기충전 전류를 억제하기 위해 초기충전회로를 필수적으로 수반하게 되므로 제품의 가격을 상승시키는 문제점이 있었다.In addition, since the initial charging circuit is necessarily accompanied to suppress the initial charging current, there was a problem of increasing the price of the product.

본 발명의 목적은 상기한 바와 같은 종래 기술에서의 문제점을 개선하기 위하여 제안된 것으로서, 에너지 회생이 가능하며 소비전력을 줄일 수 있고 제동저항과 전해 캐패시터 및 초기충전회로를 제거한 새로운 형태의 엘리베이터 구동용 컨버터시스템의 제어방법을 제공함에 있다.An object of the present invention has been proposed to improve the problems in the prior art as described above, it is possible to regenerate energy, reduce power consumption, and to drive a new type of elevator that eliminates the braking resistor, electrolytic capacitor and initial charging circuit. The present invention provides a control method of a converter system.

상기한 바와 같은 목적을 달성하기 위한 본 발명의 바람직한 실시예에 따르면, 3상입력전원을 정류하여 모터에 공급하는 엘리베이터 구동용 컨버터시스템의 제어방법에 있어서, 상기 3상 입력전원을 센싱하는 단계; 센싱된 입력전원이 (+)입력전원인지를 판단하는 단계; 상기 판단결과에 따라 스위치들을 선택적으로 동작시키는 단계;를 포함하여 이루어지며, 상기 센싱된 입력전원의 판단결과 입력전원이 (+)입력전원인 경우에는 모터로 에너지가 공급되어 모터가 가동되도록 스위치 제어신호를 출력하는 단계와, 센싱된 입력전원의 판단결과 입력전원이 (-)입력전원인 경우에는 모터로부터 에너지가 전원으로 회생되도록 스위치 제어신호를 출력하는 단계;를 더 포함하여 이루어진 것을 특징으로 하는 엘리베이터 구동용 컨버터시스템의 제어방법이 제공된다.According to a preferred embodiment of the present invention for achieving the above object, a control method of an elevator drive converter system for rectifying the three-phase input power supply to the motor, comprising: sensing the three-phase input power; Determining whether the sensed input power is a positive input power; And selectively operating switches according to the determination result. When the input power is a positive input power as a result of the sensing of the sensed input power, energy is supplied to the motor to control the switch to operate the motor. Outputting a signal, and outputting a switch control signal to regenerate energy from a motor when the input power is a negative input power as a result of the sensing of the sensed input power. A control method of an elevator drive converter system is provided.

이하 본 발명에 따른 엘리베이터 구동용 컨버터시스템의 제어방법을 첨부도면을 참조로 상세히 설명한다.Hereinafter, a control method of an elevator drive converter system according to the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 엘리베이터 구동용 컨버터시스템의 개략적인 블록구성도이고, 도 2는 도 1의 구체적인 회로구성도이고, 도 3의 도 2의 스위칭 파형을 나타낸 도면이고, 도 4는 본 발명에 따른 엘리베이터 구동용 컨버터시스템에서의 동작을 나타내는 흐름도이다.1 is a schematic block diagram of an elevator drive converter system according to the present invention, FIG. 2 is a detailed circuit diagram of FIG. 1, and shows a switching waveform of FIG. 2 of FIG. 3, and FIG. 4 is an embodiment of the present invention. Is a flowchart showing the operation in the elevator drive converter system according to the present invention.

도 1 및 도 2를 참조하면, 본 발명에 따른 엘리베이터 구동용 컨버터시스템 은 전원을 공급하는 전원공급부(200)와, 상기 전원공급부(200)에 연결되며 전원공급부(200)에 공급된 전원을 감지하는 센싱부(210)를 포함하여 이루어진다.1 and 2, the elevator drive converter system according to the present invention detects the power supplied to the power supply unit 200 and the power supply unit 200 and the power supply unit 200 to supply power. The sensing unit 210 is made to include.

참조부호 230은 양방향정류회로제어부를 나타낸 것으로서, 상기 센싱부(21)로부터 출력된 센싱신호에 따라 후술하는 양방향정류회로부(240)의 특정스위치중 하나를 제어하기 위한 제어신호들을 출력한다.Reference numeral 230 denotes a bidirectional rectifying circuit control unit, and outputs control signals for controlling one of the specific switches of the bidirectional rectifying circuit unit 240 to be described later according to the sensing signal output from the sensing unit 21.

참조부호 220은 필터부를 나타낸 것으로서, 상기 전원공급부(200)로부터 출력된 전원을 필터링하여 정류회로부로 공급한다.Reference numeral 220 denotes a filter unit, which filters the power output from the power supply unit 200 and supplies the filtered power to the rectifier circuit unit.

참조부호 240은 양방향정류회로부를 나타낸 것으로서, 상기 필터부(220)를 통해 전달된 전원을 스위칭부(260)를 통해 모터(motor)에 전달하는 역할을 수행한다.Reference numeral 240 denotes a bidirectional rectifying circuit unit, and serves to transfer the power transmitted through the filter unit 220 to the motor through the switching unit 260.

상기 양방향정류회로부(240)는 능동스위치(IGBT)로 이루어지며, 엘리베이터가 구동시 다이오드를 통해 전원(직류전원)이 공급되며 회생시 양방향정류회로부(240)인 능동스위치(IGBT)를 통해 전원이 회생된다. 상기 능동스위치(IGBT)의 구성은 일반적으로 공지된 사항이므로 구체적인 설명은 생략하기로 한다. 본 발명의 특징은 상기 능동스위치를 센싱된 전원에 따라 제어하여 이용하는 점에 있다. 편의상 상기 능동스위치의 각각의 게이트 스위치번호를 나열하면 1,2,3,4,5,6이 되고, 1과 4, 2와 5 및 3과 6번이 쌍을 이루며 해당 전원에 따라 작동된다. 이는 본 발명에서 3상 전원을 사용하므로 위상차가 발생되는 관계로 위상차에 따라 각각 스위치들이 구비되었고 또한 센싱된 전원의 양음상태에 대응하기 위하여 각각 한 쌍의 스위치가 하나의 상에 대응되도록 구비되었다.The bidirectional rectifier circuit 240 is composed of an active switch (IGBT), the power supply (direct current power) is supplied through the diode when the elevator is driven, the power is supplied via the active switch (IGBT), which is a bidirectional rectifier circuit 240 when regeneration. Is regenerated. Since the configuration of the active switch IGBT is generally known, a detailed description thereof will be omitted. The present invention is characterized in that the active switch is controlled and used according to the sensed power. For convenience, when the gate switch numbers of the active switches are listed, 1,2,3,4,5,6, 1, 4, 2, 5, and 3 and 6 are paired and operated according to the corresponding power source. Since the phase difference is generated in the present invention, since the phase difference is generated, switches are provided according to the phase difference, and a pair of switches are provided to correspond to one phase in order to correspond to the sensed positive state of the sensed power.

그 중 한 쌍에 대한 설명이 도 3에 도시되었고, 이를 통해 보면, 입력전원(Ea)을 센싱부(210)를 통해 센싱하여 입력전원이 양(+)일 경우 구동회로제어부(230)를 통해 1번 스위치인 (top)스위치(Gate_A+)를 온(ON) 하고, 입력전원이 음(-)일 경우 4번 스위치인 바텀(Bottom)스위치(Gate_A-)를 온(ON) 하여 제어한다.A description of one pair of them is illustrated in FIG. 3, and when the input power is sensed through the sensing unit 210, the input power is positive through the driving circuit controller 230. It is controlled by turning on the top switch (Gate_A +) which is the 1st switch and turning on the bottom switch (Gate_A-) which is the 4th switch when the input power is negative.

도 4를 통해보면, 먼저 3상 입력전원이 센싱되는 단계가 수행된다(ST-2). 이후 각각의 편의상 3상을 각각 120도의 위상차를 가진 Ea, Eb, Ec(Ia,Ib,Ic참조)이라고 가정하면, 먼저 Ea상에 대해 해당 입력전원이 (+)입력전원인지를 구동회로제어부(230)에서 판단한다(ST-4). 이 과정은 Eb 및 Ec상에 대해서는 동일하게 진행되므로 중복 설명은 생략하기로한다(ST-6,ST-8).Referring to FIG. 4, first, a three-phase input power is sensed (ST-2). Thereafter, for convenience, assuming that the three phases are Ea, Eb, and Ec (see Ia, Ib, and Ic) each having a phase difference of 120 degrees, first, it is determined whether the corresponding input power is a positive input power for the Ea phase. 230) (ST-4). This process is the same for the Eb and Ec phase, so duplicate description will be omitted (ST-6, ST-8).

이후 만약 입력전원이 (+)입력전원인 경우에는 게이트 1을 동작시킨다(ST-14). 만약 입력전원이 (+)가 아닌 경우 즉(-)입력전원인 경우에는 게이트 4를 동작시킨다(ST-15). 이와 같은 동작은 Eb 및 Ec상에 대해서도 유사하게 진행된다. 다만 동작되는 게이트에 있어서 각각 Eb에 대해서는 (+)입력전원인 경우에는 게이트 3이(ST-24), (-)입력전원인 경우에는 게이트 6이 동작되며(ST-25), Ec에 대해서는 (+)입력전원인 경우에는 게이트 5가(ST-34), (-)입력전원인 경우에는 게이트 2이 동작된다(ST-35).After that, if the input power is a positive input power, gate 1 is operated (ST-14). If the input power is not (+), that is, if it is a (-) input power, gate 4 is operated (ST-15). This operation proceeds similarly for Eb and Ec phases. However, when the gate is operated, gate 3 is operated in case of (+) input power for Eb and gate 6 in case of (-) input power (ST-25), and for Ec ( In the case of +) input power, gate 5 is operated (ST-34). In case of (-) input power, gate 2 is operated (ST-35).

상기 각각의 게이트들이 동작함으로써 양방향정류부 즉 IGBT가 동작된다(ST-40). 이후 전원측으로 에너지가 환원된다(ST-50).By operating the respective gates, the bidirectional rectifier, that is, the IGBT, is operated (ST-40). After that, the energy is reduced to the power supply side (ST-50).

상기 설명된 바와 같이, 본 발명에 따른 엘리베이터 구동용 컨버터시스템의 제어방법에 의하면, 회생에너지를 전원측으로 전달하면 소비전력을 줄일 수 있을 뿐만 아니라 제동저항과 전해 캐패시터, 초기충전회로를 제거하여 시스템을 소형저가로 구현할 수 있는 효과가 있다.As described above, according to the control method of the elevator drive converter system according to the present invention, by transmitting the regenerative energy to the power supply side can not only reduce the power consumption but also eliminate the braking resistor, electrolytic capacitor, initial charging circuit system There is an effect that can be implemented at a low cost.

Claims (1)

3상입력전원을 정류하여 모터에 공급하는 엘리베이터 구동용 컨버터시스템의 제어방법에 있어서,In the control method of the elevator drive converter system for rectifying the three-phase input power supply to the motor, 상기 3상 입력전원을 센싱하는 단계;Sensing the three-phase input power; 센싱된 입력전원이 (+)입력전원인지를 판단하는 단계;Determining whether the sensed input power is a positive input power; 상기 판단결과에 따라 스위치들을 선택적으로 동작시키는 단계;를 포함하여 이루어지며,And selectively operating the switches according to the determination result. 상기 센싱된 입력전원의 판단결과 입력전원이 (+)입력전원인 경우에는 모터로 에너지가 공급되어 모터가 가동되도록 스위치 제어신호를 출력하는 단계와, 센싱된 입력전원의 판단결과 입력전원이 (-)입력전원인 경우에는 모터로부터 에너지가 전원으로 회생되도록 스위치 제어신호를 출력하는 단계;를 더 포함하여 이루어진 것을 특징으로 하는 엘리베이터 구동용 컨버터시스템의 제어방법.If the input power is positive input power as a result of the determination of the sensed input power, outputting a switch control signal such that energy is supplied to the motor to operate the motor; In the case of input power, the control method of the elevator drive converter system characterized in that it further comprises; outputting a switch control signal so that energy from the motor to the power supply.
KR1020060084996A 2006-09-05 2006-09-05 Method for controlling an elevator driving converter system KR100774306B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160074138A (en) 2014-12-18 2016-06-28 현대엘리베이터주식회사 Elevator system

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Publication number Priority date Publication date Assignee Title
JPS59153478A (en) 1983-02-18 1984-09-01 Hitachi Ltd Controller for ac elevator
JPH04371464A (en) * 1991-06-20 1992-12-24 Toshiba Corp Control device for elevator
JPH0632546A (en) * 1992-07-15 1994-02-08 Toshiba Corp Control device for four quadrant operation loading device
JPH07242376A (en) * 1994-03-07 1995-09-19 Toshiba Corp Power failure landing device for elevator control device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153478A (en) 1983-02-18 1984-09-01 Hitachi Ltd Controller for ac elevator
JPH04371464A (en) * 1991-06-20 1992-12-24 Toshiba Corp Control device for elevator
JPH0632546A (en) * 1992-07-15 1994-02-08 Toshiba Corp Control device for four quadrant operation loading device
JPH07242376A (en) * 1994-03-07 1995-09-19 Toshiba Corp Power failure landing device for elevator control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160074138A (en) 2014-12-18 2016-06-28 현대엘리베이터주식회사 Elevator system

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