CN101925528B - Elevator control system - Google Patents
Elevator control system Download PDFInfo
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- CN101925528B CN101925528B CN2008801254417A CN200880125441A CN101925528B CN 101925528 B CN101925528 B CN 101925528B CN 2008801254417 A CN2008801254417 A CN 2008801254417A CN 200880125441 A CN200880125441 A CN 200880125441A CN 101925528 B CN101925528 B CN 101925528B
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- speed
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
Abstract
In an elevator control system, the feed to a motor of a driving device for moving a cage is controlled by a controller. When the temperature of any predetermined apparatus targeted for control including the driving device reaches a predetermined temperature reference value, a temperature alarm signal is output from a temperature signal generator to the controller. When there is no reception of the temperature alarm signal, the controller performs a speed priority control with the maximum value of the rotating speed of the motor set as a predetermined speed by causing a weak field current to flow in the motor. On the other hand, when the controller is receiving the temperature alarm signal, it performs a torque priority control to lower the maximum value of the rotating speed of the motor than the predetermined speed within such a range that the output torque may be maximum with respect to the feed to the motor, by reducing the weak field current to the motor to a lower level than in the speed priority control.
Description
Technical field
The present invention relates to control the apparatus for controlling elevator that car moves.
Background technology
In the past, following elevator control gear had been proposed: for the predetermined structure not overload of equipment that makes elevator the continuous state of temperature of structural device is predicted computing, and control the running of elevator according to this state of temperature that dopes.In this elevator in the past,, in the scope of the temperature limit that can not surpass structural device, carry out the running (with reference to patent documentation 1) of elevator through switching at a high speed and low-tach velocity mode.
Patent documentation 1:WO2004/030627
But, estimate the detection error etc. of car internal loading for example and set the maximum speed and the acceleration/accel of velocity mode lower.Therefore, when carrying out the running of elevator, there is mobile car under the state of surplus at the power-handling capability of towing machine, thereby can not brings into play the power-handling capability of towing machine efficiently according to such velocity mode of setting lowlyer.Thus, the operating efficiency of elevator descends.
Summary of the invention
The present invention accomplishes in order to solve above-mentioned problem just, and its purpose is, the temperature that obtains preventing comprising the predetermine one equipment of actuating device reaches unusual high temperature and can suppress the apparatus for controlling elevator that the operating efficiency of elevator descends.
Apparatus for controlling elevator of the present invention has: control setup, and its control is to the power supply of the electrical motor that makes the actuating device that car moves; And the temperature signal generation device, when its temperature at the predetermined object-based device that comprises actuating device reaches the predetermined temperature a reference value, send the warning temperature signal to control setup; Control setup carries out speed and preferentially controls when stopping to receive the warning temperature signal; When receiving the warning temperature signal, carry out torque and preferentially control, wherein, in the preferential control of said speed; Make weak exciting current flow to electrical motor; Make the rotating speed peak of electrical motor become predetermined speed, in the preferential control of said torque, compare when preferentially controlling with speed; Reduce the weak exciting current that flows to electrical motor, in output torque the scope for maximum of electrical motor, make the rotating speed peak of electrical motor be lower than predetermined speed thus with respect to power supply.
Description of drawings
Fig. 1 is the constructional drawing that the elevator of embodiment 1 of the present invention is shown.
Fig. 2 is the diagram of circuit of acts of determination that is used for the speed limit portion of instruction diagram 1.
Fig. 3 illustrates speed command when the temperature signal generation device output temperature warning signal that stops from Fig. 1, and the cooresponding acceleration/accel of speed command, voltage instruction, weak exciting current, has or not the warning temperature signal, has or not the speed limit instruction separately and the diagram of curves of the relation between the time.
Fig. 4 illustrates speed command when from the temperature signal generation device output temperature warning signal of Fig. 1, and the cooresponding acceleration/accel of speed command, voltage instruction, weak exciting current, has or not the warning temperature signal, has or not the speed limit instruction separately and the diagram of curves of the relation between the time.
Fig. 5 is the diagram of circuit of calculating action of speed command that is used for the speed command generation portion of instruction diagram 1.
The specific embodiment
Below, with reference to accompanying drawing, preferred implementation of the present invention is described.
Fig. 1 is the constructional drawing that the elevator of embodiment 1 of the present invention is shown.In the drawings, in hoistway 1, car 2 and counterweight 3 suspend in midair through main rope 4.Be provided with on the top of hoistway 1 and be used to towing machine (actuating device) 5 that car 2 and counterweight 3 are moved.The drive pulley 7 that towing machine 5 has electrical motor 6 and rotates through electrical motor 6.
In car 2, be provided with cage operating panel 9.On cage operating panel 9, be provided with a plurality of car call button 10 that are used to call out registration.In addition, the stop at each layer is provided with stop operation board 11.On stop operation board 11, be provided with a plurality of hall call buttons 12 that are used to call out registration.
On electrical motor 6, be provided with the speed detector (for example coder etc.) 13 of the rotating speed that is used to detect drive pulley 7.Detect the value of the electric current (motor current) that provides to electrical motor 6 from power inverter 8 through current probe (CT) 14, as motor current value.
In electrical motor 6, be provided with Temperature Detector 15.Thus, electrical motor 6 becomes the object-based device of being measured temperature by Temperature Detector 15.In advance Temperature Detector 15 has been set predetermined temperature reference value.The output temperature warning signal stopped the output temperature warning signal when Temperature Detector 15 reached predetermined temperature reference value in the temperature of electrical motor 6 when the temperature of electrical motor 6 is lower than predetermined temperature reference value.That is, Temperature Detector 15 compares with predetermined temperature reference value through the temperature to electrical motor 6, and can judgement the output temperature warning signal.
Warning temperature signal from Temperature Detector 15 is taken into receptor 16.Export the warning temperature signal that receptor 16 is taken into from receptor 16 as-is conditions.And temperature signal generation device 17 has Temperature Detector 15 and receptor 16.
Be sent to the control setup 18 of control elevator running respectively from the information of cage operating panel 9, stop operation board 11, speed detector 13, current probe 14 and temperature signal generation device 17.Control setup 18 from the information of cage operating panel 9, stop operation board 11, speed detector 13, current probe 14 and temperature signal generation device 17, is controlled power inverter 8 according to respectively.And control setup 18 carries out calculation process according to each execution cycle ts.
Control setup 18 has operation control part 19, speed command generation portion 20, mobile control division 21 and speed limit portion 22.
Operation control part 19 from the information of cage operating panel 9 and stop operation board 11, generates the operation management information relevant with the elevator running (for example, the destination of car 2 or the advance information of instructing etc.) according to respectively.
Speed command generation portion 20 is according to the operation management information of coming self-operating control part 19, obtains the speed command of the speed that is used to control car 2.
Mobile control division 21 is according to the speed command from speed command generation portion 20, and control is to the power supply of electrical motor 6.Thus, control car 2 moves.Through the control of 21 pairs of power inverters 8 of mobile control division, control is to the power supply of electrical motor 6.In addition, mobile control division 21 has speed controller 23 and current controller 24.
Speed controller 23 is obtained from poor with from the information of the rotating speed of speed detector 13 of the speed command of speed command generation portion 20, as velocity deviation information, the velocity deviation information of obtaining is outputed to current controller 24.
Current controller 24 produces the control command of control power inverter 8 according to from the velocity deviation information of speed controller 23 with from each information of the information of the motor current of current probe 14.That is, current controller 24 is according to obtaining the motor current expected value from the velocity deviation information of speed controller 23, and control power inverter 8 is so that consistent with the motor current expected value by current probe 14 detected motor current value.
Control command comprises the current-order that is used to regulate the motor current that offers electrical motor 6, the voltage instruction that is used to regulate the voltage that offers electrical motor 6.In addition, voltage instruction comprises the information of the duty cycle of switching of the voltage that is directed against electrical motor 6.
And, the bus voltage of power inverter 8, motor current value, current instruction value, voltage instruction value and relevant with the output of electrical motor 6 to the duty cycle of switching of the voltage of electrical motor 6, thereby become and the cooresponding activation bit of the output of electrical motor 6.
Speed limit portion 22 can output to speed command generation portion 20 with the speed limit instruction of the rotating speed that is used to suppress electrical motor 6.In addition, speed limit portion 22 receive information (warning temperature signal) from temperature signal generation device 17, from the information (voltage instruction) of current controller 24 and from the information (speed command) of speed command generation portion 20.And from the information of temperature signal generation device 17, current controller 24 and speed command generation portion 20, can judgement output speed restriction instruction according to respectively in speed limit portion 22.Promptly; The all conditions that the value that rises, receives warning temperature signal and voltage instruction with constant acceleration when the speed that satisfies car 2 surpasses predefined limits value Vlim (promptly; The instruction output condition) time; Speed limit portion 22 outputs to speed command generation portion 20 with the speed limit instruction, when discontented toe makes output condition, stops output speed restriction instruction.
Here, when the terminal voltage Vt of electrical motor 6 increases, surpass power inverter 8 producible maximum voltages, motor voltage produces distortion.Consequently, because motor current also produces distortion, cause producing noise, under the worst situation, causing sometimes can not the control motor.Therefore, for the rotating speed at control motor 6 under higher speed, need to reduce the terminal voltage Vt of electrical motor 6.
In addition, the adjusting of motor current is to carry out with the adjusting of the invalid components (d axle composition) that the generation torque is not had act on through the effective constituent (q axle composition) that produces torque.Voltage equation during stable state on the d-q coordinate of permanent magnet motor is represented by formula (1).
Here; Id, iq are the d axle and the q axle compositions of the armature current of electrical motor; Vd, vq are the d axle and the q axle compositions of the armature voltage of electrical motor; Ra is the winding resistance of armature; ω is an electric angle speed, and Ld, Lq are the d axle and the q axle inductance of winding,
be the armature interlinkage flux that the permanent magnetism on the d-q coordinate produces.
According to formula (1), the terminal voltage Vt of electrical motor 6 is represented by formula (2).
According to formula (2), can reduce the terminal voltage Vt of electrical motor 6 through the d shaft current (weak exciting current) that flows through negative sense.Therefore, control can improve the peak of the rotating speed of electrical motor 6 thus to the power supply (that is, carrying out weak excitation control) of electrical motor 6 when making weak exciting current flow to electrical motor 6.
On the other hand, when making weak exciting current flow to electrical motor 6, the power factor of electrical motor 6 worsens.That is, compare when not carrying out weak excitation control, produce identical torque when carrying out weak excitation control and the electric current that needs is bigger.Therefore, compare when not carrying out weak excitation control, the heating of electrical motor 6 is bigger when carrying out weak excitation control.
The peak Vmax of the setting speed that calculates according to operation management information is the accessible speed of the speed of car 2 through electrical motor 6 being carried out weak excitation control.That is, based on the peak Vmax of the setting speed of operation management information be the inaccessiable speed of speed of car 2 under stopping to the state of the weak excitation control of electrical motor 6.
Speed command generation portion 20 is when stopping inbound pacing restriction instruction; Calculate with based on the corresponding speed command of the setting speed of running management information; In inbound pacing when instruction restriction, the peak that calculates the speed that makes car 2 is lower than the speed command based on the peak Vmax of the setting speed of running management information.In addition, the speed command of the accelerated service termination that makes car 2 calculates through inbound pacing restriction instruction in speed command generation portion 20.
When calculating with the corresponding speed command of setting speed, because the speed of car 2 is in the preset range of the peak Vmax that comprises setting speed, therefore the control to the power supply of electrical motor 6 becomes weak excitation control.On the other hand, speed command generation portion 20 inbound pacings restriction instruction and the speed command that calculates is to reduce the speed command maximum with respect to the output torque of power supply that weak exciting current makes electrical motor 6.In this example, calculate the speed command that stops to provide weak exciting current to electrical motor 6 by speed command generation portion 20.In addition, the accelerated service of car 2 is ended in the 20 inbound pacings restriction instruction of speed command generation portion thus, and the peak of the speed of car 2 is lower than the peak Vmax of setting speed.
That is, control setup 18 carries out speed when stopping from temperature signal generation device 17 reception warning temperature signals preferentially controls, and when receiving the warning temperature signal, carries out torque and preferentially controls; In the preferential control of said speed; Make weak exciting current flow to electrical motor 6, the peak that makes the rotating speed of electrical motor 6 is the predetermined speed value of the rotating speed of the cooresponding electrical motor 6 of peak Vmax of setting speed (that is, with); In the preferential control of said torque; Compare when preferentially controlling, reduce the weak exciting current that flows to electrical motor 6, in the scope of output torque for maximum of electrical motor 6, make the peak of the rotating speed of electrical motor 6 be lower than predetermined speed with speed.
Then, action is described.When having carried out through any at least one operation of cage operating panel 9 and stop operation board 11 calling out registration, the information of calling out registration is sent to control setup 18.Then, when enabled instruction is input to control setup 18, carries out the power supply of 8 pairs of electrical motors 6 of power inverter and be used to stop the releasing of drg of the rotation of drive pulley 7 through the control of control setup 18.Begin moving of car 2 thus.Then, through the speed that car 2 is regulated in the control of 18 pairs of power inverters 8 of control setup, car 2 moves to having carried out calling out the destination of registering.
The action of control setup 18 then, is described.In control setup 18, by speed limit portion 22 according to respectively from the information of temperature signal generation device 17, current controller 24 and speed command generator 20, can judgement output speed restriction instruction.
When the information of calling out registration is input to control setup 18, by the information generating run management information of operation control part 19 according to the calling registration.Then, when speed command generation portion 20 stops to receive the speed limit instruction from speed limit portion 22, calculate the setting speed obtained through predetermined formula according to operation management information as speed command by speed command generation portion 20.In addition, when speed command generation portion 20 receives from the instruction of the speed limit of speed limit portion 22, by speed command generation portion 20 calculate be lower than setting speed speed as speed command.Speed command generation portion 20 carries out speed command according to each execution cycle ts and calculates.
Then, according to the speed command that calculates, by mobile control division 21 control power inverters 8.Thus, control is controlled the speed of car 2 to the power supply of electrical motor 6.
The acts of determination of speed limit portion 22 then, is described.Fig. 2 is the diagram of circuit of acts of determination that is used for the speed limit portion 22 of instruction diagram 1.As shown in the figure, speed limit portion 22 is according to the information from speed command generation portion 20, judges it whether is (S1) in the constant acceleration of car 2.When car 2 does not move with constant acceleration, stop the judgement (S2) of output speed restriction instruction.
When car 2 moved with constant acceleration, speed limit portion 22 judged to have or not to receive warning temperature signal (S3) according to the information from temperature signal generation device 17.When not receiving the warning temperature signal, stop the judgement (S2) of output speed restriction instruction.
When receiving the warning temperature signal, speed limit portion 22 judges according to the information from current controller 24 whether voltage instruction value surpasses limits value Vlim (S4).When voltage instruction value is limits value Vlim when following, stop the judgement (S5) of output speed restriction instruction.On the other hand, when voltage instruction value surpasses limits value Vlim, carry out the judgement (S6) of output speed restriction instruction.
Then, the speed command of the speed command generation portion 20 when stopping from temperature signal generation device 17 output temperature warning signals describes.Fig. 3 illustrates speed command when the temperature signal generation device 17 output temperature warning signals that stop from Fig. 1, and the cooresponding acceleration/accel of speed command, voltage instruction, weak exciting current, has or not the warning temperature signal, has or not the speed limit instruction separately and the diagram of curves of the relation between the time.
And; In the drawings, to establish no enabled instruction input and speed command be 0 state (halted state) for the state of MODE=1, acceleration/accel＞0 and acceleration＞0 be that the state of MODE=2, acceleration/accel＞0 and acceleration=0 is that the state of MODE=3, acceleration/accel＞0 and acceleration＜0 is that the state of MODE=4, constant speed is that the state of MODE=5, acceleration/accel＜0 and acceleration＜0 is that the state of MODE=6, acceleration/accel＜0 and acceleration=0 is that the state of MODE=7, acceleration/accel＜0 and acceleration＞0 is MODE=8.Acceleration/accel when in addition, the acceleration/accel during MODE=3 is predefined peak acceleration α a, MODE=7 is predefined maximum deceleration α d.
In this case, as shown in Figure 3, in all MODE=1～8, speed limit portion 22 stops the judgement of output speed restriction instruction.Therefore, speed command generation portion 20 can inbound pacing restriction instruction.Thus, directly calculate the setting speed obtained through predefined formula as speed command by speed command generation portion 20.That is, the speed command that is calculated by speed command generation portion 20 is the value of the former state that goes out according to the operation management information calculations, not limited by the judgement of speed limit portion 22.In addition, in this case, when MODE=3, when voltage instruction surpasses limits value Vlim,, make the weak excitation control that is controlled to be to the power supply of electrical motor 6 for the speed that makes car 2 further rises.
Then, the speed command of the speed command generation portion 20 to from temperature signal generation device 17 output temperature warning signals the time describes.Fig. 4 illustrates speed command when from the temperature signal generation device 17 output temperature warning signals of Fig. 1, and the cooresponding acceleration/accel of speed command, voltage instruction, weak exciting current, has or not the warning temperature signal, has or not the speed limit instruction separately and the diagram of curves of the relation between the time.
In this case, as shown in Figure 4, when MODE=3, when voltage instruction surpasses limits value Vlim, the 22 output speeds restriction instruction of speed limit portion.Thus, ratio calculates based on the low speed command of the setting speed of operation management information in speed command generation portion 20.In addition, in this case, stop weak excitation control to electrical motor 6.
Then, the calculating action to the speed command of speed command generation portion 20 describes.Fig. 5 is the diagram of circuit of calculating action of speed command that is used for the speed command generation portion 20 of instruction diagram 1.As shown in the figure, at first, speed command generation portion 20 judges whether enabled instruction is input to control setup 18 (S11).Do not import under the situation of enabled instruction, setting acceleration alpha=0, speed V=0 and MODE=1 (S12) for.Then, speed command generation portion 20 degree of will speed up α=0 and speed V=0 substitution formula (3), computation speed instruction V (S13) thus.
V＝V+α·ts...(3)
Then, speed command generation portion 20 outputs to speed controller 23 (S14) with the speed command V that calculates, and finishes the computing in this cycle.
When the input of enabled instruction occurring, whether speed command generation portion 20 judges MODE=1 (S15).Under the situation of MODE=1, become the initial computing after enabled instruction is imported, thereby set MODE=2 for.In addition, through type this moment (4) is set acceleration alpha, and through type (5) is set the migration velocity Va (S16) when MODE=3 transfers to MODE=4.
α＝α+j·ts...(4)
Va＝Vmax-α
2/(2·j)...(5)
Here, j is an acceleration, and Vmax is the peak of setting speed.
Then, speed command generation portion 20 passes through the speed command V substitution formula (3) of acceleration alpha and computing last time, thereby calculates the speed command V (S13) that makes new advances.Then, speed command generation portion 20 outputs to speed controller 23 (S14) with the speed command V that calculates, and finishes the computing in this cycle.
On the other hand, when being not MODE=1, speed command generation portion 20 judges whether be MODE=2 (S17).Under the situation of MODE=2, speed command generation portion 20 judges whether acceleration alpha is peak acceleration α a (S18).Through type under the situation that is not peak acceleration α a (4) is set acceleration alpha, and through type (5) is set migration velocity Va.Keep MODE=2 (S16) this moment.
In addition, when acceleration alpha is peak acceleration α a, keep acceleration alpha and migration velocity Va, and set MODE=3 (S19) for.
Then, speed command generation portion 20 passes through the speed command V substitution formula (3) of acceleration alpha and computing last time, thereby calculates speed command V (S13).Then, speed command generation portion 20 outputs to speed controller 23 (S14) with the speed command V that calculates, and finishes the computing in this cycle.
When being not MODE=2, speed command generation portion 20 judges whether be MODE=3 (S20).Under the situation of MODE=3, speed command generation portion 20 judges that whether to meet speed command V be migration velocity Va and receives any one (S21) in the speed limit instruction.When all not meeting, keep acceleration alpha and migration velocity Va, and keep MODE=3.
When meeting speed command V is that migration velocity Va and speed command generation portion 20 receive any a time in the speed limit instruction, and through type (6) is set acceleration alpha, sets MODE=4 (S22) for.
α＝α-j·ts...(6)
Then, speed command generation portion 20 passes through the speed command V substitution formula (3) of acceleration alpha and computing last time, thereby calculates speed command V (S13).Then, speed command generation portion 20 outputs to speed controller 23 (S14) with the speed command V that calculates, and finishes the computing in this cycle.
Under the situation that is not MODE=3, speed command generation portion 20 judges whether be MODE=4 (S23).Under the situation of MODE=4, whether the absolute value that acceleration alpha are judged by speed command generation portion 20 is below the absolute value of the product of acceleration j and execution cycle ts.That is, speed command generation portion 20 judges whether satisfy formula (7) (S24).
|α|≤|j·ts|...(7)
Under the situation that does not satisfy formula (7), through type (6) is set acceleration alpha, keeps MODE=4 (S22).In addition, under the situation that satisfies formula (7), degree of will speed up α is set as 0, and sets MODE=5 (S25) for.
Then, the speed command V substitution formula (3) of 20 degree of will speed up α of speed command generation portion and computing last time, thus calculate speed command V (S13).Then, speed command generation portion 20 outputs to speed controller 23 (S14) with the speed command V that calculates, and finishes the computing in this cycle.
When being not MODE=4, speed command generation portion 20 judges whether be MODE=5 (S26).Under the situation of MODE=5, speed command generation portion 20 judges whether car 2 is positioned at deceleration starting position (S27).When not reaching the deceleration starting position, acceleration alpha keeps 0, and keeps MODE=5 (S25).In addition, when reaching the deceleration starting position, through type (6) is set acceleration alpha, and sets MODE=6 (S28) for.
Then, speed command generation portion 20 passes through the speed command V substitution formula (3) of acceleration alpha and computing last time, thereby calculates speed command V (S13).Then, speed command generation portion 20 outputs to speed controller 23 (S14) with the speed command V that calculates, and finishes the computing in this cycle.
When being not MODE=5, speed command generation portion 20 judges whether be MODE=6 (S29).Under the situation of MODE=6, speed command generation portion 20 judges whether acceleration alpha is maximum deceleration α d (S30).When not being maximum deceleration α d, through type (6) is set acceleration alpha, and keeps MODE=6 (S28).In addition, be under the situation of maximum deceleration α d when acceleration alpha, degree of will speed up α sets maximum deceleration α d for, and sets MODE=7 (S31) for.
Then, speed command generation portion 20 passes through the speed command V substitution formula (3) of acceleration alpha and computing last time, thereby calculates speed command V (S13).Then, speed command generation portion 20 outputs to speed controller 23 (S14) with the speed command V that calculates, and finishes the computing in this cycle.
When being not MODE=6, speed command generation portion 20 judges whether be MODE=7 (S32).Under the situation of MODE=7, speed command generation portion 20 judges whether car 2 is positioned at stop starting position (S33).When not reaching under the situation of stopping the starting position, acceleration alpha keeps maximum deceleration α d, and keeps MODE=7 (S31).Then, speed command generation portion 20 passes through the speed command V substitution formula (3) of acceleration alpha and computing last time, thereby calculates speed command V (S13).Then, speed command generation portion 20 outputs to speed controller 23 (S14) with the speed command V that calculates, and finishes the computing in this cycle.
In addition, when arriving under the situation of stopping the starting position, speed command generation portion 20 arrives the distance calculation speed command V of stop position according to car 2, and sets MODE=8 (S34) for.Then, speed command generation portion 20 outputs to speed controller 23 (S14) with the speed command V that calculates, and finishes the computing in this cycle.
In this apparatus for controlling elevator; When the temperature of electrical motor 6 reaches predetermined temperature reference value; Send the warning temperature signal from temperature signal generation device 17 to control setup 18; Control setup 18 is when stopping to receive the warning temperature signal; Utilize to the weak excitation control of electrical motor 6 speed that the rotating speed peak of electrical motor 6 is made as predetermined speed is preferentially controlled, when receiving the warning temperature signal, carry out the torque maximum with respect to the output torque of power supply of electrical motor 6 preferentially being controlled through reducing weak exciting current; Therefore, also can suppress the heating of electrical motor 6 efficiently and can not reduce the maximum speed of car 2 significantly even the temperature of electrical motor 6 rises and becomes high temperature.Therefore, can prevent that the temperature of electrical motor 6 from becoming unusual high temperature, and can suppress the operating efficiency reduction of elevator.
In addition; 22 pairs of voltage instructions of speed limit portion and limits value compare, and when receiving warning temperature signal and car 2 acceleration, voltage instruction surpasses limits value; Thus to the 20 output speeds restriction instruction of speed command generation portion; The speed command of the accelerated service termination that makes car 2 is calculated in the 20 inbound pacings restriction instruction of speed command generation portion thus, therefore can reduce the output torque of electrical motor 6 is not had the idle current value of effect.Therefore, can prevent that the temperature of electrical motor 6 from becoming unusual high temperature, and can suppress the operating efficiency reduction of elevator.
And; In above-mentioned example; Be that voltage instruction and limits value are compared; But be not limited to voltage instruction, also can be, output to the current instruction value of power inverter 8 and compare with limits value from control setup 18 to any one the duty cycle of switching of the voltage of electrical motor 6 in order to regulate motor current to the motor current value of the current value of the value of the terminal voltage of the bus voltage of power inverter 8, electrical motor 6, expression electrical motor 6.Whether saturated with respect to bus voltage these information also be terminal voltage the judge index of electrical motor 6, therefore these information and limits value compared, and can judgement instruct in the output speed restriction, can reduce the running of idle current value thus.Therefore, can prevent that the temperature of electrical motor 6 from becoming unusual high temperature, and can suppress the operating efficiency reduction of elevator.
And; In above-mentioned example, the object-based device that Temperature Detector 15 is measured temperature is an electrical motor 6, but is not limited to electrical motor 6; So long as because the power supply of power inverter 8 causes heat-producing equipment to get final product, for example also can be with power inverter 8 or speed detector 13 etc. as object-based device.
In addition, in above-mentioned example, be to utilize Temperature Detector 15 directly to measure the temperature of electrical motor 6, but also can change, estimate the temperature of electrical motor 6 according to the time of current probe 14 detected electric currents.Promptly; Also can following temperature estimator be connected with current probe 14; This temperature estimator changed according to the time of the electric current of inflow motor 6; Estimate the temperature of electrical motor 6, when the temperature of the electrical motor that estimates 6 reaches the predetermined temperature a reference value, to speed limit portion 22 output temperature warning signals.
Claims (3)
1. an apparatus for controlling elevator is characterized in that,
This apparatus for controlling elevator has:
Control setup, its control is to the power supply of the electrical motor that makes the actuating device that car moves; And
The temperature signal generation device when its temperature at the predetermined object-based device that comprises said actuating device reaches the predetermined temperature a reference value, sends the warning temperature signal to said control setup,
Said control setup carries out speed and preferentially controls when stopping to receive said warning temperature signal; When receiving said warning temperature signal, carry out torque and preferentially control, wherein, in the preferential control of said speed; Make weak exciting current flow to said electrical motor; Make the rotating speed peak of said electrical motor become predetermined speed, in the preferential control of said torque, compare when preferentially controlling with said speed; Reduce the said weak exciting current that flows to said electrical motor, in the scope of output torque for maximum of said electrical motor, make the rotating speed peak of said electrical motor be lower than said predetermined speed thus.
2. apparatus for controlling elevator according to claim 1 is characterized in that,
Said control setup has:
Speed command generation portion, its calculating is used for speed command that the speed of said car is controlled; And
Speed limit portion; It is to comparing with cooresponding activation bit of the output of said actuating device and predefined limits value; Receiving said warning temperature signal and said car when quickening, said activation bit surpasses said limits value, thus; To the output speed restriction instruction of said speed command generation portion
Said speed command generation portion receives said speed limit instruction, calculates the accelerated service of ending said car thus and makes the rotating speed peak of said electrical motor be lower than the said speed command of said predetermined speed.
3. apparatus for controlling elevator according to claim 2 is characterized in that,
Said activation bit is the bus voltage of the power inverter that said electrical motor is supplied power of the control through said control setup; The motor voltage value of representing the magnitude of voltage of said electrical motor; The motor current value of representing the current value of said electrical motor; Output to the current instruction value of said power inverter from said control setup in order to regulate motor current; Output to the voltage instruction value of said power inverter from said control setup in order to regulate motor voltage; And to any one in the duty cycle of switching of the voltage of said electrical motor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2008/055865 WO2009118858A1 (en) | 2008-03-27 | 2008-03-27 | Elevator control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101925528A CN101925528A (en) | 2010-12-22 |
| CN101925528B true CN101925528B (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801254417A Active CN101925528B (en) | 2008-03-27 | 2008-03-27 | Elevator control system |
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| Country | Link |
|---|---|
| EP (1) | EP2256077B1 (en) |
| JP (1) | JP5404606B2 (en) |
| KR (1) | KR101189883B1 (en) |
| CN (1) | CN101925528B (en) |
| WO (1) | WO2009118858A1 (en) |
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| FI123563B (en) * | 2012-09-04 | 2013-07-15 | Kone Corp | Method and system for increasing the usability of a floor-standing elevator when not in use |
| RU2553619C1 (en) * | 2013-12-06 | 2015-06-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Сибирский государственный индустриальный университет" | Protection device of mining hoisting units against rope slippage |
| CN104860149B (en) * | 2015-04-21 | 2017-11-17 | 深圳市海浦蒙特科技有限公司 | Building hoist load testing method and frequency converter |
| CN105173955A (en) * | 2015-09-22 | 2015-12-23 | 苏州润吉驱动技术有限公司 | Brake temperature measurement device of elevator traction machine |
| CN105923483B (en) * | 2016-07-19 | 2018-05-11 | 宁夏电通物联网科技股份有限公司 | Elevator degree of operating steadily diagnoses and maintenance system and method |
| CN108249237A (en) * | 2017-11-30 | 2018-07-06 | 上海贝思特电气有限公司 | A kind of algorithm for realizing elevator automatic fall-back in undertension |
| WO2019163133A1 (en) * | 2018-02-26 | 2019-08-29 | 三菱電機株式会社 | Elevator safety control device |
| CN110963380A (en) * | 2019-12-27 | 2020-04-07 | 重庆威斯特电梯有限公司 | Elevator controller, elevator and elevator control method |
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| CN1767995A (en) * | 2004-03-30 | 2006-05-03 | 三菱电机株式会社 | Elevator control device |
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| WO2007013141A1 (en) * | 2005-07-26 | 2007-02-01 | Mitsubishi Denki Kabushiki Kaisha | Control device for elevator |
| KR100994582B1 (en) | 2006-05-16 | 2010-11-15 | 미쓰비시덴키 가부시키가이샤 | Control device for elevator |
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| CN1176933A (en) * | 1996-02-28 | 1998-03-25 | 株式会社日立制作所 | Control device for controlling AC motor such as that in elevator with high driving efficiency |
| CN1767995A (en) * | 2004-03-30 | 2006-05-03 | 三菱电机株式会社 | Elevator control device |
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| CN101925528A (en) | 2010-12-22 |
| KR20100094592A (en) | 2010-08-26 |
| JP5404606B2 (en) | 2014-02-05 |
| JPWO2009118858A1 (en) | 2011-07-21 |
| WO2009118858A1 (en) | 2009-10-01 |
| EP2256077A1 (en) | 2010-12-01 |
| EP2256077B1 (en) | 2016-09-28 |
| KR101189883B1 (en) | 2012-10-10 |
| EP2256077A4 (en) | 2014-07-02 |
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