KR820001651Y1 - Elevator speed controller - Google Patents
Elevator speed controller Download PDFInfo
- Publication number
- KR820001651Y1 KR820001651Y1 KR2019820004057U KR820004057U KR820001651Y1 KR 820001651 Y1 KR820001651 Y1 KR 820001651Y1 KR 2019820004057 U KR2019820004057 U KR 2019820004057U KR 820004057 U KR820004057 U KR 820004057U KR 820001651 Y1 KR820001651 Y1 KR 820001651Y1
- Authority
- KR
- South Korea
- Prior art keywords
- output
- speed
- elevator
- control device
- motor
- Prior art date
Links
Classifications
-
- 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
- B66B1/306—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 with DC powered elevator drive
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래 엘리베이터의 속도 제어장치를 표시한 구성도.1 is a configuration diagram showing a speed control device of a conventional elevator.
제2도는 제1도의 엘리베이터실 속도, 자계제어장치 출력 전압 및 유도 전동기 입력전류의 특성곡선도.2 is a characteristic curve diagram of the elevator room speed, the magnetic field controller output voltage and the induction motor input current of FIG.
제3도는 본 고안에 의한 엘리베이터의 속도 제어장치의 1실시예를 표시한 구성도.Figure 3 is a block diagram showing an embodiment of the speed control device of the elevator according to the present invention.
제4도는 제3도의 가산기, 제한장치 및 자계제어장치의 회로도.4 is a circuit diagram of the adder, limiting device and magnetic field control device of FIG.
제5도는 제3도 및 제4도의 제하장치의 입출력 특성곡선도.5 is an input / output characteristic curve of the unloading device of FIGS. 3 and 4;
제6도는 제3도에 의한 엘리베이터실 속도, 자계제어장치 출력전압 및 유도전동기 입력전류의 특성곡선도.6 is a characteristic curve of elevator room speed, magnetic field controller output voltage and induction motor input current according to FIG.
본 고안은 엘리베이터의 속도를 제어하는 장치의 개량에 관한 것이다.The present invention relates to an improvement of an apparatus for controlling the speed of an elevator.
종래 엘리베이터의 속도 제어에는 제1도 및 제2도에 표시하는 방식을 사용해 왔다.Conventionally, the method shown in FIG. 1 and FIG. 2 has been used for speed control of an elevator.
제1도중 (1)은 엘리베이터실, (2)는 균형추, (3)은 로우프, (4)는 활차, (6)은 권상용 직류전동기의 전기자, (7)은 직류 전동기의 전기자, (8)은 유도전동기, (9)는 속도계용 발전기, (10)은 발전기계자, (11)은 계자제어장치로써 (11a)는 그 출력, (12)는 속도지령장치, (13)은 가산기(可算器), (13a)는 그 출력인 편차신호, (14)는 전원차단기, I는 유도전동기(8)의 입력전류이다.(1) is the elevator room, (2) the balance weight, (3) the rope, (4) the pulley, (6) the armature of the hoisting DC motor, (7) the armature of the DC motor, (8) Is an induction motor, 9 is a speedometer generator, 10 is a generator field, 11 is a field control device, 11a is its output, 12 is a speed command device, and 13 is an adder. And (13a) are deviation signals which are outputs thereof, (14) is a power circuit breaker, and I is an input current of the induction motor 8.
제2도중, V는 엘리베이터실(1)의 속도,In the second, V is the speed of the elevator room 1,
Vm은 엘리베이터실(1)의 최고속도, (11a1)(11a2)는 부하하중이 변화할 때의 유동전동기(8)의 입력전류이다.Vm is the maximum speed of the elevator room 1, and 11a 1 and 11a 2 are the input currents of the flow motor 8 when the load load changes.
유동전동기(8)는 직류발전기의 전기자(7)를 구동시키고 전기자(7)가 발생하는 직류전력은 직류전동기의 전기자(6)에 공급된다. 전기자(6)는 이 전력에 의해 회전하고, 활차(4)를 통하여 엘리베이터실(1)을 구동시킨다.The flow motor 8 drives the armature 7 of the DC generator, and the DC power generated by the armature 7 is supplied to the armature 6 of the DC motor. The armature 6 rotates by this electric power, and drives the elevator room 1 via the pulley 4.
속도 지령장치(12)의 출력인 속도지령신호와, 속도 계용발전기(9)의 출력인 속도신호는 가산기(13)로 가산되며, 편차신호(13a)는 계자제어장치(11)에 입력된다.The speed command signal that is the output of the speed command device 12 and the speed signal that is the output of the speed meter generator 9 are added to the adder 13, and the deviation signal 13a is input to the field control device 11.
계자제어장치(11)는 편차신호(13a)에 대응하는 출력(11a)을 발생하며, 이출력(11a)에 의해 발전기계자(10)는 제어된다. 이와 같이하여 전기자(6)의 속도는 자동제어되어, 엘리베이터실(1)의 속도는 높은 정밀도로 제어된다.The field control device 11 generates an output 11a corresponding to the deviation signal 13a, and the generator field 10 is controlled by this output 11a. In this way, the speed of the armature 6 is automatically controlled, and the speed of the elevator room 1 is controlled with high precision.
지금, 엘리베이터실(1)의 부하하중이 정격부하로서, 엘리베이터실(1)이 상승운전될 경우의 계자제어장치(11)의 출력(11a) 및 유도 전동기(8)의 입력전류 I를 각각 곡선(11a1), I1이라 하면, 과부하에서 상승운전할 경우는 각각 곡선(11a2), I2와 같이 된다.Now, the load load of the elevator room 1 is the rated load, and the output 11a of the field control device 11 and the input current I of the induction motor 8 when the elevator room 1 is driven up are curved, respectively. In the case of 11a 1 and I 1 , in the case of ascending operation under an overload, the curves 11a 2 and I 2 are respectively obtained.
일반적으로, 엘리베이터는 엘리베이터실내의 부하하중이 정격부하 이상이되면 그 주행을 저지하기 위한 과부하 검출장치가 설치된다. 그런데, 이 과부하검출장치는 ±10%정도의 동작오차를 갖고 있기 때문에 정격부하에 있어서 운전을 저해하지 않기 위해서 과부하 검출장치는 정격부하의 110% 정도로 설정하게 된다. 그러므로, 최악의 경우에는 정격부하의 120%로 상승운전하게 되며, 이 경우 계자제어장치(11)의 출력(11a) 및 유동전동기(8)의 입력전류 I는 각 곡선(11a2), I2와 같이 대단히 크게 된다.In general, an elevator is provided with an overload detection device for preventing the running of the load when the load in the elevator room exceeds the rated load. However, since the overload detection device has an operating error of about 10%, the overload detection device is set at about 110% of the rated load in order not to impede operation at the rated load. Therefore, in the worst case, the motor is driven up to 120% of the rated load. In this case, the output 11a of the field controller 11 and the input current I of the flow motor 8 are each curve 11a 2 , I 2. It becomes very large.
하강 운전시는 부하하중이 없을 경우, (무부하)에 최대전력을 필요로 하게되나, 주지하는 바와 같이 엘리베이터에 있어서는 정격부하하중의 약절반의 균형추(2)를 채용하고 있으므로, 무부하 하강운전시의 전력은 정격부하상승운전시와 대체로 동일하다.When there is no load during the descent operation, maximum power is required for (no load) .However, as the elevator uses, a counterweight (2) of about half of the rated load is employed. The power is largely the same as in rated load operation.
따라서, 엘리베이터로서의 전력은 과부하 상승운전시에 최대로 된다.Therefore, the electric power as an elevator becomes maximum at the time of overload raising operation.
종래 계자제어장치(11)의 출력포화치는 부하하중이 허용과부 하율내(率內), 즉 약 120% 부하 이하가 되면 엘리베이터가 정상 가속될 수 있도록 선정되어 있다.The output saturation value of the conventional field control device 11 is selected so that the elevator can be normally accelerated when the load load falls within the allowable overload rate, that is, about 120% load or less.
결국, 제2도(b)에 표시한 바와 같이, 과부하 상승운전시 계자제어장치(11)의 출력(11a)의 최대치보다 높은 전압 V1에 계자제어장치(11)의 출력포화치를 선정하여 왔다. 이 경우, 엘리베이터실(1)은 부하하중이 과부하의 경우에도 정격부하의 경우와 동일한 가속도로 가속되나, 반면에 제2도(c)에 표시한 바와 같이 유도 전동기(8)의 입력전류 I2도 대단히 커진다. 이 때문에, 엘리베이터기기는 과부하 상승운전시의 피이크출력에 충분히 견딜 수 있도록 하여야 한다.As a result, as shown in Fig. 2 (b), the output saturation value of the field control device 11 has been selected at a voltage V 1 higher than the maximum value of the output 11a of the field control device 11 during the overload rising operation. . In this case, the elevator compartment 1 is accelerated with the same acceleration as that of the rated load even when the load is overload, whereas the input current I 2 of the induction motor 8 is as shown in FIG. Is also very large. For this reason, elevator equipment should be able to withstand the peak output during overload ascent operation.
특히, 유동전동기(8)에 있어서는 그 피이크 출력의 부족이 런어웨이(Run away)라는 위험사태를 초래하고, 그리고 피이크 출력은 전원전압의 저하에 의해 감소하기 때문에 전원변동을 고려하여 충분히 큰 피이크 출력을 발생할 수 있는 것을 사용하였던 것이다.In particular, in the floating motor 8, the shortage of the peak output causes a risk of run away, and since the peak output is reduced by the decrease in the power supply voltage, the peak output is sufficiently large in consideration of power fluctuation. I used to be able to occur.
그렇지만 엘리베이터에 있어서는, 전원전압이 저하한 상태에서 과부하 상승운전하는 기회는 극히적고, 이 극히적은 기회를 위해서, 엘리베이터기기를 대용량화하는 것은 비경제적이며, 또한 에너지의 절약이란 견지에서도 바람직하지 못하다.However, in elevators, the chance of overloading up and down operation in the state of low power supply voltage is extremely small, and for this extremely small opportunity, it is uneconomical to increase the capacity of elevator equipment, and it is not preferable in terms of energy saving.
본 고안은 위와 같은 점을 감안하여 안출된 것으로, 유도전동기의 피이크출력을 감소하고, 에너지절약면과 경제적인 엘리베이터의 속도제어장치를 제공하는데 그 목적이 있다.The present invention has been devised in view of the above, and its purpose is to reduce the peak output of an induction motor, and to provide an energy saving surface and an economical speed control device for an elevator.
이하, 제3도 내지 제6도에 의해 본 발명의 1실시예에 대하여 설명한다.3 to 6, one embodiment of the present invention will be described.
제3도중, (15)는 가산기(13)의 출력인 편차신호(13a)가 소정치를 넘으면 그 이후의 출력을 일정치로 유지하는 제어장치이다. 다른 것은 제1도와 동일하다.In Fig. 3, reference numeral 15 denotes a control device which maintains the subsequent output at a constant value when the deviation signal 13a which is the output of the adder 13 exceeds a predetermined value. The other is the same as FIG.
제4도중, A1,A2는 연산증폭기, A3는 전력증폭기, +Vp1, -Vn1는 연산증폭기 A1,A2용 전원, +Vp2, -Vn2는 전력증폭기 A3용 전원, R1~R7, R9~R11는 저항, R8은 가변저항기, C는 콘덴서, D는 다이오드, (131)은 속도지령장치(12)에 접속하는 단자, (132)는 속도 계용발전기(9)에 접속하는 단자, (111)은 계자제어장치(11)의 출력단자이다.In Figure 4, A 1 and A 2 are operational amplifiers, A 3 is power amplifiers, + Vp 1 , -Vn 1 is power supply for operational amplifiers A 1 and A 2 , + Vp 2 and -Vn 2 is power amplifier for A 3 Power supply, R 1 to R 7 , R 9 to R 11 are resistors, R 8 is a variable resistor, C is a capacitor, D is a diode, 131 is a terminal connected to the speed command device 12, 132 is a speed Terminal 111 connected to the system generator 9 is an output terminal of the field control device 11.
제5도 및 제6도중, V2는 제어장치(15)의 출력포화치, (11a2'), I2'는 각각 과부하상승운전시의 계자제어장치(11)의 출력전압 및 유도 전동계(8)의 입력전류이다.5 and 6, V 2 is the output saturation value of the control device 15, (11a 2 '), I 2 ' is the output voltage and induction motor of the field control device 11 at the time of overload rising operation ( 8) is the input current.
속도 지령장치(12)의 출력은 단자(131)에 입력되고, 속도 계용발전기(9)의 출력은 단자(132)에 입력되며, 연산증폭기 A1에서 가산, 증폭된다.The output of the speed command device 12 is input to the terminal 131, the output of the speed meter generator 9 is input to the terminal 132, and is added and amplified by the operational amplifier A 1 .
제한장치(15)는 저항 R8의 가동탭 전위가 영이하에서 다이오드 D가 비도통 될 경우, 단순한 반전증폭기로서 작용되지만 저항 R8의 가동 탭전위가 영을 넘어 다이오드 D가 도통하면 강력한 귀환작용을 하여 그 이후의 출력 V2을 일정하게 유지하게 된다.Restrictor 15 when the diode D nonconductive under zero the movable tap the potential of the resistor R 8, when acting as a simple inverting amplifier, but D is conducting a movable tap the potential of the resistor R 8 diodes beyond the spirit strong return action The output V 2 after that is kept constant.
제한장치(15)는 엘리베이터실(1)의 정격부하상승운전 또는 무부하하강 운전에는 작동되지 않으며, 과부하 상승운전으로 가산기(13)의 출력(13a)이 증가될 때에 동작하도록 저항 R8의 가동탭을 조정하여 동작점을 결정한다.The limiting device 15 does not operate during the rated load raising operation or the no load lowering operation of the elevator room 1, and the movable tap of the resistor R 8 to operate when the output 13a of the adder 13 is increased by the overload raising operation. To adjust the operating point.
엘리베이터실(1)의 정격부하 상승 운전 또는 무부하하강운전시 계자제어장치(11)의 출력전압은 제6도(b)의 곡선(11a1)에 표시한 바와 같이 제2도(b)와 동일하게 되나 과부하 상승운전시 위와 같이 다이오드 D가 도통하여 출력(15a)이 일정하게 유지되면 곡선(11a)에 표시한 바와 같이 된다.The output voltage of the field control device 11 during the rated load raising operation or the no load lowering operation of the elevator room 1 is the same as that of FIG. 2 (b) as indicated by the curve 11a 1 of FIG. However, as shown in the curve 11a when the diode D is conducting as described above and the output 15a is kept constant during the overload rising operation.
결국, 가속도중에서 계자제어장치(11)의 출력전압이 V2에 제한되기 때문에, 발전기계자(10)의 여자량이 부족하게 된다. 그 결과, 제6도(a)에 표시한 바와 같이 가속도가 감소한다. 그렇지만, 제6도 (c)에 표시한 바와 같이 유동전동기(8)의 입력 전류도 곡선 I2와 같이 그 피이크치가 억압되기 때문에, 유동전동기(8)의 피이크 출력은 감소하며, 엘리베이터실의 최고속도 Vm가 확보된다.As a result, since the output voltage of the field control device 11 is limited to V 2 during acceleration, the excitation amount of the generator field 10 becomes insufficient. As a result, the acceleration decreases as shown in Fig. 6A. However, as shown in Fig. 6 (c), since the peak value of the input current of the flow motor 8 is also suppressed as shown in the curve I 2 , the peak output of the flow motor 8 is reduced, and the peak of the elevator room is reduced. The speed Vm is secured.
또, 계자제어장치(11)는 일반적으로 제4도에 표시한 바와 같이 제어특성을 안정하게 하기 위해서 저항R10및 콘덴서 c로 구성되는 지연회로를 설치하였다.In addition, the field controller 11 is provided with a delay circuit composed of a resistor R 10 and a capacitor c in order to stabilize the control characteristics as generally shown in FIG.
제한장치(15)는 콘덴서 c를 과충전하지 않도록 하기만하면 어디에 설치하여도 좋다.The limiting device 15 may be provided anywhere as long as it does not overcharge the capacitor c.
예컨데, 가산기(13) 또는 계자제어장치(11)내에 설치하여도 위와 같은 기능을 얻을 수가 있다.For example, the above functions can be obtained even when installed in the adder 13 or the field control device 11.
이상 설명한 바와같이 본 발명은 속도지령신호와 속도신호의 편차신호가 소정치에 달하면 계자제어장치의 출력을 일정치로 제한하여 발전기계자를 그 이상 여자하지 않도록 하기 때문에, 발전기를 구동하는 유도전동기의 입력전류의 피이크치를 억제할 수 있고, 엘리베이터기기의 과부하내량(耐量)을 적게하여 경제적으로 구성할 수 있다.As described above, the present invention limits the output of the field control device to a constant value when the speed command signal and the deviation signal of the speed signal reach a predetermined value so that the generator field is not excited any more. The peak value of the input current can be suppressed, and the overload capacity of the elevator equipment can be reduced and economical construction can be achieved.
또 특히 유동전동기에 있어서는 전원전압이 저하하여 그 피이크 출력이 감소하여도 런어웨이 현상의 염려없이 안전하게 엘리베이터를 운전하는 것이 가능하다.In particular, in the case of a floating motor, even if the power supply voltage is lowered and its peak output is reduced, the elevator can be operated safely without fear of runaway phenomenon.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019820004057U KR820001651Y1 (en) | 1982-05-24 | 1982-05-24 | Elevator speed controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019820004057U KR820001651Y1 (en) | 1982-05-24 | 1982-05-24 | Elevator speed controller |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019770002700 Division | 1977-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR820001651Y1 true KR820001651Y1 (en) | 1982-08-11 |
Family
ID=19225548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019820004057U KR820001651Y1 (en) | 1982-05-24 | 1982-05-24 | Elevator speed controller |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR820001651Y1 (en) |
-
1982
- 1982-05-24 KR KR2019820004057U patent/KR820001651Y1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR870001022Y1 (en) | Control device of AC elevator | |
| US6710574B2 (en) | Reversible DC motor drive including a DC/DC converter and four quadrant DC/DC controller | |
| FI86053B (en) | FOERFARANDE OCH ANORDNING FOER STYRNING AV EN LYFTMOTOR. | |
| US4484664A (en) | Emergency drive device for an A.C. elevator | |
| US4269286A (en) | Speed control apparatus for elevator system | |
| US5089760A (en) | DC bus voltage regulation by controlling the frequency in a variable frequency inverter | |
| KR900001580B1 (en) | Automatic landing devices of ac elevator in interruption of electric power time | |
| KR820001651Y1 (en) | Elevator speed controller | |
| KR850005819A (en) | Elevator speed controller | |
| US2493607A (en) | Eddy current preloaded controllable speed motor | |
| US4932069A (en) | Elevator motor control | |
| CA1234933A (en) | Elevator system | |
| US3560822A (en) | Motor control having a feedback stablilized generator | |
| US8104584B2 (en) | Elevator drive control strategy | |
| US2280991A (en) | Motor control system | |
| GB988338A (en) | Electric motor control system | |
| US4460862A (en) | Electronic speed and slowing down control with intrinsic safety | |
| KR830002444B1 (en) | Elevator speed control device | |
| GB1319684A (en) | Hoists | |
| KR930009955B1 (en) | Elevator control | |
| SU1324976A1 (en) | D.c.electric drive of mine hoist | |
| US4357996A (en) | Speed control device for an elevator | |
| SU803094A1 (en) | Adjustable dc electric drive | |
| SU98104A1 (en) | Electric drive | |
| SU989719A2 (en) | Electric drive for hoisting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UA0105 | Converted application for utility model registration |
Patent event date: 19820524 Patent event code: UA01011R05D Comment text: Application for Conversion into Application for Utility Model Registration |
|
| UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19820708 |
|
| UE0701 | Decision of registration |
Patent event date: 19821023 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
| UR0701 | Registration of establishment |
Patent event date: 19821102 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
| UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 5 Payment date: 19860607 |
|
| UR1001 | Payment of annual fee |
Payment date: 19870623 Start annual number: 6 End annual number: 6 |
|
| UR1001 | Payment of annual fee |
Payment date: 19880122 Start annual number: 7 End annual number: 9 |
|
| UC1801 | Expiration of term |
Termination category: Others Termination date: 19900629 |