CN102795529A - Elevator driving system - Google Patents
Elevator driving system Download PDFInfo
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- CN102795529A CN102795529A CN2012101598719A CN201210159871A CN102795529A CN 102795529 A CN102795529 A CN 102795529A CN 2012101598719 A CN2012101598719 A CN 2012101598719A CN 201210159871 A CN201210159871 A CN 201210159871A CN 102795529 A CN102795529 A CN 102795529A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The invention provides an elevator driving system. The small capacity of an electrical storage device is realized in the elevator driving system which uses the electrical storage device such as a storage battery or a capacitor to reduce the power of a commercial power supply. The commercial power supply (100) controls an electrical motor for driving (104) via a convertor (101), the capacitor (102), and an inverter (103), and the electrical storage device (107) is arranged. A charging and discharging device (108) is arranged between the capacitor (102) and the electrical storage device (107), and is controlled by a voltage controller (111) to enable the voltage of the capacitor (102) to approximate to a target value (Vref). The voltage target value (Vref) of the capacitor (102) is changed in a positive manner based on the charging quantity of the electrical storage device (107) and the power operation mode/regeneration operation mode of the elevator, in this way, the power peak and the power consumption of the commercial power supply (100) can be reduced and the miniaturization of the electrical storage device (107) can be realied.
Description
Technical field
The present invention relates to a kind of elevator drive system, especially relate to electrical storage devices such as a kind of use storage battery or cond, discharging and recharging of electrical storage device reduced from the elevator drive system of source power supply power supply through control.
Background technology
In the elevator drive system of existing use electrical storage device, for example disclosed as patent documentation 1 and patent documentation 2, the expected value of the vdc of inverter input side is set at the certain magnitude of voltage higher than the full-wave rectified voltage of source power supply.
In addition; In patent documentation 3 and patent documentation 4 disclosed elevator devices; Judge the power mode of operation (Power Operation Mode) of elevator and the operational mode of regeneration operational mode (Regenerative Operation Mode) etc. according to dc voltage value, carry out discharging and recharging of electrical storage device thus.
Technical literature formerly
Patent documentation
No. 4463912 patent of patent documentation 1 Japan
Patent documentation 2 spies of Japan open the 2001-139244 communique
Patent documentation 3 spies of Japan open the 2001-240326 communique
Patent documentation 4 spies of Japan open the 2001-240319 communique
Summary of the invention
Be set at the certain value higher if as patent documentation 1 and patent documentation 2 are disclosed, will be input to the vdc of the inverter that direct motor drive uses than the maximum voltage of source power supply; Then the charging of electrical storage device is carried out when the regeneration operation; Cause when use is carried out the electrical storage device of auxiliary power supply to inverter; Even,, also need use high-capacity electrical storage device all the time in order to reduce peak value electric power and power consumption in the occasion that continues to carry out the power operation.
In addition; If as patent documentation 3 and patent documentation 4 are disclosed, electrical storage device is set at and when carrying out the power operation, gets into discharge mode; When regenerating operation, get into charge mode; And do not consider the situation of the charge capacity of this electrical storage device, then in order to reduce peak value electric power and power consumption, need to use high-capacity electrical storage device equally.
The object of the present invention is to provide a kind of elevator drive system, this elevator drive system can dwindle the capacity of electrical storage device, and can reduce from the peak value electric power and the consumes power of source power supply supply.
As one aspect of the present invention, a kind of elevator drive system is provided, this elevator drive system is characterised in that to have: changer, said changer carries out rectification and it is transformed to direct current (DC) the alternating current from source power supply; Cond, said cond is connected with the DC side of said changer; Inverter, the DC side of said inverter is connected with said cond; The alternating-current motor/AC motor that elevator drive is used, the alternating-current motor/AC motor that said elevator drive is used is connected with the AC side of said inverter; Charge and discharge device, said charge and discharge device and said cond are connected in parallel; Electrical storage device, said electrical storage device is connected with said charge and discharge device; The charge capacity detecting unit, the charge capacity of the said electrical storage device of said charge capacity detection; The operational mode judging unit, the current operational mode of said operational mode judgment unit judges elevator is power mode of operation or regeneration operational mode; And control setup, elevator carry out power operation during, if the charge capacity of said electrical storage device is less than first threshold; Then said control setup is controlled said charge and discharge device; Make said cond voltage near be set the target voltage that forces down than the maximum electrical of said source power supply, promote charging thus to said electrical storage device, and; Elevator regenerate the operation during; If the charge capacity of said electrical storage device is greater than second threshold value, then said control setup is controlled said charge and discharge device, makes the voltage of said cond near being set highlyer than the maximum voltage of said source power supply target voltage; Utilizing regenerated electric power that said electrical storage device is carried out the electrically-charged while thus, suppressing electric power supply from said source power supply.
Wherein, the first threshold of preferred power run duration is greater than second threshold value of regeneration run duration.
In addition; Elevator carry out power operation during; If the charge capacity of said electrical storage device greater than said first threshold, is then preferably controlled said charge and discharge device by said control setup, make the voltage of said cond near being set highlyer target voltage than the maximum voltage of said source power supply; Promote thus from said electrical storage device delivered power operation electric power, to suppress electric power supply from said source power supply.
In addition; Elevator regenerate the operation during; If the charge capacity of said electrical storage device is less than said second threshold value; Then preferably control said charge and discharge device by said control setup, make said cond voltage near be set the target voltage that forces down than the maximum electrical of said source power supply, promote charging thus to said electrical storage device.
In addition; Obtain the current operational mode of elevator; According to the charge volume of electrical storage device and current operational mode; If the charge volume of electrical storage device is few, then set the target voltage values of said cond to such an extent that force down than the maximum electrical of source power supply, promote control with this charging to said electrical storage device.
In addition; Information according to the terraced passenger sensor of time of the call login information of call button through elevator and destination floor button settings, pick up camera, infradred sensor, ultrasonic transduter, safety door etc.; Predict the operational mode of next time moving after elevator stops by predicting unit; Decide the target voltage values of said cond thus,, can improve energy-saving effect through setting the threshold value of charge volume changeably.
In addition, in lift car with in the elevator lobby, the read out instrument that shows operational mode and discharge and recharge information such as action and charge capacity is set, shows energy-saving effect thus.
The invention effect
According to preferred implementation of the present invention, can realize a kind of elevator drive system, this elevator drive system can dwindle the capacity of electrical storage device, and can reduce from the peak value electric power and the consumes power of source power supply supply.
Other purpose of the present invention and characteristic are explained in following explanation to embodiment.
Description of drawings
Fig. 1 is the structural representation of the related elevator drive system of the first embodiment of the present invention.
Fig. 2 is related charge capacity of the first embodiment of the present invention and the instruction diagram that discharges and recharges control.
Fig. 3 is the structural representation of the related elevator drive system of the second embodiment of the present invention.
Fig. 4 is related charge capacity of the second embodiment of the present invention and the instruction diagram that discharges and recharges control.
Fig. 5 is the structural representation of the related elevator drive system of the third embodiment of the present invention.
Fig. 6 is related charge capacity of the third embodiment of the present invention and the instruction diagram that discharges and recharges control.
Fig. 7 is the structural representation of the related elevator drive system of the fourth embodiment of the present invention.
Fig. 8 is the structural representation of the related elevator drive system of the fifth embodiment of the present invention.
Fig. 9 is the structural representation of the related elevator drive system of the sixth embodiment of the present invention.
Nomenclature
110 ... Source power supply, 101 ... Changer, 102 ... Cond, 103 ... Inverter, 104 ... Electrical motor; 105 ... Lift car, 106 ... Counterbalanced weight, 107 ... Electrical storage device, 108 ... Charge and discharge device, 109 ... IGBT (upside); 110 ... IGBT (downside), 111 ... Voltage controller, 112 ... Cond target voltage setup unit, 113 ... The charge capacity detecting unit; 114 ... The running state acquiring unit, 115 ... The operation predicting unit, 116 ... Wait terraced occupant detection unit, 117 ... The maximum distance acquiring unit of going; 118 ... Read out instrument, 119 ... Current limiting unit, 120 ... Switch, 121 ... Discharging resistance
The specific embodiment
Followingly specific embodiment of the present invention is described with reference to accompanying drawing.
First embodiment
Fig. 1 is the structural representation of the related elevator drive system of the first embodiment of the present invention.In the related elevator drive system of the first embodiment of the present invention, have as power circuit: changer 101,101 pairs of alternating current from source power supply 100 of this changer carry out rectification and it are transformed to direct current (DC); Inverter 103, this inverter 103 is connected with the DC side of this changer 101; And drive motor 104, the electric power that this drive motor 104 is accepted from this inverter 103.In addition, the direct current section between said changer 101 and inverter 103 is connected with cond 102.
The driving of going up and down of the lift car 105 that 104 pairs of said drive motors are hung as the well-bucket shape and counterbalanced weight 106.
Be connected with charge and discharge device 108 between two terminals of said cond 102, between said cond 102 and electrical storage device 107, carry out the exchange of electric power thus.This charge and discharge device 108 is configured at two IGBT109 that are connected in parallel with cond 102,110 circuit series, this circuit series be connected in series a little and the direct current negative terminal between be connected with the circuit series of reactor and electrical storage device 107.And the IGBT109 through the control upside can control from the charging of 102 pairs of electrical storage devices 107 of cond, and the IGBT110 through the control downside can control from the discharge of 107 pairs of conies 102 of electrical storage device.
On the other hand, as control circuit, in charge and discharge device 108, have voltage controller (AVR) 111, control through this voltage controller, the voltage Vdc that makes cond 102 is near given target voltage values Vref.In addition, also has the charge capacity detecting unit 113 that is used for setting the cond target voltage setup unit 112 of this target voltage and is used for detecting the charge capacity Qb of electrical storage device 107.
Fig. 2 is related charge capacity of the first embodiment of the present invention and the instruction diagram that discharges and recharges control.As shown in Figure 2, cond target voltage setup unit 112 is set the command value Vref of cond target voltage according to the charge capacity Qb that obtains from charge capacity detecting unit 113.The maximum voltage Vsp and the relation between the Vref of source power supply 100 are following.
(1) pattern 152:
When charge capacity scope Qtmax＞Qb >=Qt1,, the command value Vref of cond target voltage is set at Vref＞Vsp for the exchange of only between electrical storage device 107 and inverter 103, carrying out electric power is discharged promoting.
(2) pattern 153:
When charge capacity scope Qtmin＜Qb＜Qt1, for from source power supply 100 to electrical storage device 107 and inverter 103 power supplies promoting charging, the command value Vref of cond target voltage is set at Vref＜Vsp.
(3) pattern 154:
At charge capacity Qb is in the zone of Qb >=Qtmax, has excessive charge capacity in order to prevent electrical storage device 107, and the IGBT109 of the upside of charge and discharge device 108 is fixed on the OFF state to stop charging.Simultaneously, the command value Vref that preferably improves the cond target voltage is to promote discharge.
(4) pattern 155:
At charge capacity Qb is in the zone of Qb≤Qtmin; If raising condenser voltage; Then have excessive electric current and flow into charge and discharge device 108, thus the IGBT110 of downside is fixed on the OFF state stopping discharge, and the command value Vref that reduces the cond target voltage at the same time is to promote charging.
So; Through the cond 102 set according to charge capacity by cond target voltage setup unit 112 target voltage command value Vref with respect to the voltage controller (AVR) 111 of charge and discharge device 108; Discharging and recharging of appropriateness can be realized thus, thereby the capacity of charge and discharge device 108 can be dwindled.
In Fig. 1, owing to use cond as electrical storage device, so can obtain charge capacity according to voltage.And under the situation of using battery, can obtain charge capacity from the controller of battery.
When the difference between the voltage Vdc of the maximum voltage Vsp of source power supply 100 and cond 102 becomes big, have excessive electric current and flow into changer 101.In order to prevent this situation, be provided with current limiting unit 119, the position is set also can be built in the changer 101 at DC side in the source power supply side of changer 101 of current limiting unit 119.
In Fig. 1,, use reactor as current limiting unit 119.Become in the big scope if Vref is set in difference between the voltage Vdc of the maximum voltage that can not cause source power supply and cond 102, then only need to utilize the impedance of wiring to get final product, and current limiting unit 119 needn't be set.
Second embodiment
Fig. 3 is the structural representation of the related elevator drive system of the second embodiment of the present invention.The difference of the elevator drive system of first embodiment of the elevator drive system of second embodiment and Fig. 1 is; The elevator drive system of second embodiment has the running state acquiring unit 114 that obtains the current running state of elevator, and the running state of being obtained is reflected in the cond target voltage setup unit 112.As the method for obtaining the current running state of elevator, charge capacity in the detection lift car 105 and lift car are at the situation of movement of above-below direction.
Fig. 4 is related charge capacity of the second embodiment of the present invention and the instruction diagram that discharges and recharges control.As shown in Figure 4, the operational mode of the current power mode of operation of the elevator that cond target voltage setup unit 112 obtains according to the charge capacity Qb that is obtained by charge capacity detecting unit 113 with by running state acquiring unit 114 and regeneration operational mode etc. is set the expected value Vref of condenser voltage Vdc.
(1) pattern 252:
During the charge capacity scope Qtmax＞Qb when power moves >=Qt1, for only from electrical storage device 107 to inverter 103 power supplies promoting discharge, the value of Vref is set at Vref＞Vsp.
(2) pattern 253:
During the charge capacity scope Qtmin1≤Qb when power moves＜Qt1, for from source power supply 100 to inverter 103 and electrical storage device 107 power supplies promoting charging, the value of Vref is set at Vref＜Vsp.
(3) pattern 256:
When the charge capacity scope Qtmax＞Qb in when operation regeneration >=Qt2, charge in order to promote the regenerated electric power that is used to from inverter 103, Vref is set at Vref＞Vsp with the cond target voltage.That is to say,, can stop inflow, can utilize the regenerated electric power that will surpass target voltage Vref that electrical storage device 107 is charged from the electric power of power supply 100 through condenser voltage Vdc is remained on high potential.
(4) pattern 257:
When the charge capacity scope Qtmin2≤Qb in when operation regeneration＜Qt2, in order to promote from source power supply 100 to inverter 103 and electrical storage device 107 power supplies promoting charging, the value of Vref is set at Vref＜Vsp.
That is to say; Through condenser voltage Vdc is remained on low voltage; Can promote inflow, can utilize the regenerated electric power that will surpass the target voltage Vref that sets lowly and electrical storage device 107 is charged from the electric power of power supply from the electric power of power supply 100 and inverter 103.
(5) pattern 255:
At charge capacity Qb is in the zone of Qb＞Qtmax, becomes excessive for fear of the charge capacity of electrical storage device 107, and the IGBT109 of the upside of charge and discharge device 108 is fixed on the OFF state to stop charging.Simultaneously, preferably improving cond target voltage Vref discharges from electrical storage device with promotion.
(6) pattern 254,258:
Charge capacity Qb when the charge capacity Qb when power moves is the regional of Qb＜Qtmin1 and regeneration operation is in the zone of Qb＜Qtmin2; If raising condenser voltage; Then have excessive electric current and flow into charge and discharge device 108; So the IGBT110 of downside is fixed on the OFF state stopping discharge, and reduces target voltage command value Vref by the strong hand electrical storage device is promoted charging.
So, the target voltage Vref that sets cond 102 by cond target voltage setup unit 112 according to the charge capacity and the current operational mode of elevator of electrical storage device.
In a second embodiment; Owing to can when the regeneration operation, charge to electrical storage device 107; So charge capacity threshold value Qt1 when moving less than power through charge capacity threshold value Qt2 is set for; Consumes electric power can be further suppressed, thereby energy-saving effect can be further improved from source power supply 100.
The 3rd embodiment
Fig. 5 is the structural representation of the related elevator drive system of the third embodiment of the present invention.The difference of the elevator drive system of second embodiment of the elevator drive system of the 3rd embodiment and Fig. 3 is; The elevator drive system of the 3rd embodiment has operation predicting unit 115; This operation predicting unit is predicted the operational mode that elevator moves next time according to the load information of direction informations such as call information and destination floor information and elevator; In addition, the operational mode of being obtained is reflected in the cond target voltage setup unit 112.
Cond target voltage setup unit 112; As shown in Figure 6; The same with second embodiment; The operational mode of the current power mode of operation of the elevator that obtains according to the charge capacity Qb that obtains from charge capacity detecting unit 113 with from running state acquiring unit 114 and regeneration operational mode etc. and by the operational mode of operation next time that operation predicting unit 115 predicts is set the expected value Vref of condenser voltage Vdc according to charge capacity Qb.
Fig. 6 is related charge capacity of the third embodiment of the present invention and the instruction diagram that discharges and recharges control.In the 3rd embodiment, the action of pattern (1)～(6) of pattern 252～258 and second embodiment during with the regeneration operation of power when operation is identical.
Below the control method of elevator stopping period is described.
(7) pattern 259:
During the charge volume scope Qtmax＞Qb under halted state >=Qt3, the IGBT109 of upside is fixed on OFF to stop charging.
(8) pattern 260:
During the charge volume scope Qtmin2≤Qb under halted state＜Qt3, because the electric power storage electric power of electrical storage device 107 is few, so, preferably utilize 100 pairs of storage batterys 107 of source power supply to charge in order to tackle operation next time.Therefore, cond target voltage Vref is set at Vref＜Vsp.
That is to say; Through condenser voltage Vdc is remained on low voltage; Can promote to flow into cond 102, can utilize the electric power that will surpass the target voltage Vref that sets lowly that flows into from power supply 100 that electrical storage device 107 is charged from the electric power of power supply 100.
Wherein, Be at elevator under the situation of halted state; Operating to when operation regeneration predicting through operation predicting unit 115 next time; Cond target voltage setup unit 112 comes the charging stop area of extension mode 259 through reducing threshold value Qt3, comes the zone from source power supply 100 power supplies in the suppression mode 260 thus.Followingly describe with reference to concrete example.
(A) as prerequisite, suppose that the building is the building of 10 floors, counterbalanced weight 106 and charge capacity are that 50% o'clock lift car total weight keeps balance.And supposing that elevator is current rests in 5 layers, and elevator door is in closed condition.Certainly, there is not the passenger in the elevator.
(B) at this moment, suppose that elevator passenger operated the entrance hall button of down direction at 5 layers elevator lobby, at this moment, elevator door is opened, and elevator passenger begins to take advantage of into lift car.
(C) time of back ladder passenger takes advantage of into lift car in succession, has surpassed a half of ultimate load in the charge capacity of lift car, and operation predicting unit 115 can be predicted as the regeneration operational mode with the operational mode of moving next time.Corresponding therewith, cond target voltage setup unit 112 reduces the value of the threshold value Qt3 of Fig. 6.For this reason, enlarge the scope of above-mentioned (7) pattern 259, that dwindles (8) pattern 260 is undertaken electrically-charged regional 260 by power supply.Thus, on the way the IGBT109 with upside is fixed on the OFF state, stops to charge with source power supply 100 with this.
As stated, cond target voltage setup unit 112 is adjusted threshold value Qt3 according to the operational mode of current operational mode and operation next time.Therefore if the operational mode of operation can know then that for the regeneration operational mode charge volume to electrical storage device 107 will increase soon next time, stop charging when low-level just be at charge capacity Qb.So, charge from 100 pairs of electrical storage devices of source power supply through stopping in advance, can further reduce consumes electric power from source power supply 100.
The 4th embodiment
Fig. 7 is the structural representation of the related elevator drive system of the fourth embodiment of the present invention.The difference of the elevator drive system of the 3rd embodiment of the elevator drive system of the 4th embodiment and Fig. 5 is; The elevator drive system of the 4th embodiment has the time ladder occupant detection unit 116 that pick up camera, infradred sensor, ultrasonic transduter, safety door or piezoelectricity pad etc. are arranged on elevator lobby, and this testing result of waiting terraced occupant detection unit 116 is reflected in the operation predicting unit 115.
The operational mode of power mode of operation that the elevator that cond target voltage setup unit 112 obtains according to the charge capacity Qb that obtains from charge capacity detecting unit 113, from running state acquiring unit 114 is current and regeneration operational mode etc. and from operation predicting unit 115 obtain elevator is stopped after the predicting the outcome of running state of operation next time, adjust the expected value of the voltage of cond according to charge capacity Qb shown in Figure 6.
That is to say that the action of the pattern 252～258 of the action of the pattern 252～258 of power mode of operation and regeneration operational mode and stopping period and Fig. 4 and second embodiment shown in Figure 6 and the 3rd embodiment is identical.
Elevator regenerate the operation during; Be judged as when operating to the regeneration operation according to the testing result of waiting terraced occupant detection unit 116 in operation predicting unit 115 next time; Cond target voltage setup unit 112 reduces the threshold value Qt2 of Fig. 6, to suppress from source power supply 100 power supplies.Followingly describe with reference to concrete example.
(A) suppose that the building is the building of 10 floors, and the hypothesis elevator is in fully laden and towards 1 layer of operation that descends (operation of regenerating).Counterbalanced weight 106 is the same with a last example, with charge capacity be that 50% o'clock lift car total weight is suitable.
(B) suppose to be pressed, and the hall call buttons of other floor is not pressed in the hall call buttons of 10 layers of down direction in building.In addition, 1 layer elevator lobby does not wait the passenger of elevator.Do not wait terraced passenger and take advantage of possibility through waiting terraced occupant detection unit 116, can being judged as into elevator.
(C) 115 predictions of operation predicting unit operate to the regeneration operation next time.Cond target voltage setup unit 112 reduces the value of the threshold value Qt2 of Fig. 6.Therefore,, also become the state of above-mentioned (3), stop to charge from source power supply 100 even in the occasion of above-mentioned (4).
In addition; Elevator carry out power operation during; Be judged as and operate to when operation regeneration next time through waiting terraced occupant detection unit 116 in operation predicting unit 115, cond target voltage setup unit 112 reduces the threshold value Qt1 of Fig. 6, to suppress the power supply from source power supply 100.Followingly describe with reference to concrete example.
(A) suppose equally with previous concrete example, the building is the building of 10 floors, and counterbalanced weight 106 and charge capacity are that 50% o'clock lift car total weight keeps balance.And suppose elevator towards 1 layer of decline, owing to have only a passenger in the lift car, elevator is carrying out the power operation.
(B) 10 layers hall call buttons supposing the building is pressed, and the hall call buttons of other floor is not pressed.Not waiting terraced passenger at 1 layer elevator lobby waits before elevator.At this moment, do not wait terraced passenger and take advantage of possibility through waiting terraced occupant detection unit 116, can being judged as into elevator.
(C) 115 predictions of operation predicting unit operate to the regeneration operation next time.Cond target voltage setup unit 112 reduces the value of the threshold value Qt1 of Fig. 6.Therefore, even above-mentioned (2) pattern 253 pass through the zone that power supply charges and drives, under this situation, also become the state of above-mentioned (1) pattern 252, stop to charge from source power supply 100.
As stated; Predict the outcome the adjustment threshold value Qt1 or the threshold value Qt2 of the operational mode of operation next time after cond target voltage setup unit 112 stops according to current operational mode and elevator; Charge with the electric power of inhibition as much as possible, so can cut down consumes electric power with source power supply 100.
Wait terraced occupant detection unit 116 through being provided with, can correctly predict the patronage of taking advantage of into elevator, thus the precision of prediction of the operational mode that elevator is moved next time can be improved, thus can cut down the consumes electric power when moving.
The 5th embodiment
Fig. 8 is the structural representation of the related elevator drive system of the fifth embodiment of the present invention.The difference of the elevator drive system of the elevator drive system of the 5th embodiment and first embodiment shown in Figure 1 is, the elevator drive system of the 5th embodiment has according to stopping layer information and obtains the maximum of the maximum operating range of the elevator distance acquiring unit 117 of going.
For example, the height of the floor of stopping at elevator is when the height in the building that this elevator is set over half, and maximum is gone, and to be judged as the elevator operating range short for distance acquiring unit 117.Under the short situation of maximum operating range, because of a power operation little from the electric weight of electrical storage device 107 outflows.Therefore, the charge capacity that must guarantee does not need a lot, and cond target voltage setup unit 112 reduces threshold value Qt1 shown in Figure 2 according to the maximum range information that goes, and can suppress from the power supply of source power supply 100 thus.
As stated, cond target voltage setup unit 112 is adjusted threshold value Qt1 according to charge capacity and maximum operating range, can reduce the charging of 100 pairs of electrical storage devices 107 of source power supply, so can further cut down the consumes electric power from source power supply 100.
The 6th embodiment
Fig. 9 is the structural representation of the related elevator drive system of the sixth embodiment of the present invention.The difference of the elevator drive system of the elevator drive system of the 6th embodiment and second embodiment shown in Figure 3 is, the elevator drive system of the 6th embodiment has the read out instrument 118 of the information such as charge capacity of the charging and discharging state that shows elevator operation mode and charge and discharge device 108 and electrical storage device 107.
Show that in read out instrument 118 elevator is in running state or halted state; Show power mode of operation, regeneration operational mode and various operational modes such as out of service; Show and currently still electrical storage device is charged, and show the charge capacity of electrical storage device from electrical storage device discharge.Thus, can let the user understand the energy-saving effect of elevator, and can notify the state of charge and discharge device 108 and electrical storage device 107 to operating personal.
In above-mentioned first embodiment to the, six embodiment, can make the threshold value Qt1～Qt3 of charge capacity have hysteresis quality in order to tackle the provisional change of charge capacity.
Claims (11)
1. elevator drive system is characterized in that having:
Changer, said changer carries out rectification and it is transformed to direct current (DC) the alternating current from source power supply;
Cond, said cond is connected with the DC side of said changer;
Inverter, the DC side of said inverter is connected with said cond;
The alternating-current motor/AC motor that elevator drive is used, the alternating-current motor/AC motor that said elevator drive is used is connected with the AC side of said inverter;
Charge and discharge device, said charge and discharge device and said cond are connected in parallel;
Electrical storage device, said electrical storage device is connected with said charge and discharge device;
The charge capacity detecting unit, the charge capacity of the said electrical storage device of said charge capacity detection;
The operational mode judging unit, the current operational mode of said operational mode judgment unit judges elevator is power mode of operation or regeneration operational mode; And
Control setup; Elevator carry out power operation during; If the charge capacity of said electrical storage device is less than first threshold, then said control setup is controlled said charge and discharge device, make said cond voltage near be set the target voltage that forces down than the maximum electrical of said source power supply; Promote charging thus to said electrical storage device, and
Elevator regenerate the operation during; If the charge capacity of said electrical storage device is greater than second threshold value; Then said control setup is controlled said charge and discharge device; Make the voltage of said cond near being set highlyer target voltage, utilizing regenerated electric power that said electrical storage device is carried out the electrically-charged while thus, suppress electric power supply from said source power supply than the maximum voltage of said source power supply.
2. elevator drive system is characterized in that having:
Changer, said changer carries out rectification and it is transformed to direct current (DC) the alternating current from source power supply;
Cond, said cond is connected with the DC side of said changer;
Inverter, the DC side of said inverter is connected with said cond;
The alternating-current motor/AC motor that elevator drive is used, the alternating-current motor/AC motor that said elevator drive is used is connected with the AC side of said inverter;
Charge and discharge device, said charge and discharge device and said cond are connected in parallel;
Electrical storage device, said electrical storage device is connected with said charge and discharge device;
The charge capacity detecting unit, the charge capacity of the said electrical storage device of said charge capacity detection;
The operational mode judging unit, the current operational mode of said operational mode judgment unit judges elevator is power mode of operation or regeneration operational mode; And
Control setup; Elevator carry out power operation during; If the charge capacity of said electrical storage device is less than first threshold, then said control setup is controlled said charge and discharge device, make said cond voltage near be set the target voltage that forces down than the maximum electrical of said source power supply; Promote charging thus to said electrical storage device, and
Elevator regenerate the operation during; If the charge capacity of said electrical storage device is greater than second threshold value littler than said first threshold; Then said control setup is controlled said charge and discharge device; Make the voltage of said cond near being set highlyer target voltage, utilizing regenerated electric power that said electrical storage device is carried out the electrically-charged while thus, suppress electric power supply from said source power supply than the maximum voltage of said source power supply.
3. like claim 1 or 2 described elevator drive systems, it is characterized in that,
Elevator carry out power operation during; If the charge capacity of said electrical storage device is greater than said first threshold; Then said control setup is controlled said charge and discharge device; Make the voltage of said cond near being set highlyer target voltage, promote thus from said electrical storage device delivered power operation electric power, to suppress electric power supply from said source power supply than the maximum voltage of said source power supply.
4. like claim 1 or 2 described elevator drive systems, it is characterized in that,
Elevator regenerate the operation during; If the charge capacity of said electrical storage device is less than said second threshold value; Then said control setup is controlled said charge and discharge device; Make said cond voltage near be set the target voltage that forces down than the maximum electrical of said source power supply, promote charging thus to said electrical storage device.
5. like claim 1 or 2 described elevator drive systems, it is characterized in that having current limiting unit, said current limiting unit suppresses electric current flows to said changer from said source power supply DC side.
6. like claim 1 or 2 described elevator drive systems, it is characterized in that,
At the elevator stopping period, if the charge capacity of said electrical storage device greater than the 3rd threshold value, then said control setup is controlled said charge and discharge device, make to stop to said electrical storage device charging,
At the elevator stopping period; If the charge capacity of said electrical storage device is less than said the 3rd threshold value; Then said control setup is controlled said charge and discharge device, make said cond voltage near be set the target voltage that forces down than the maximum electrical of said source power supply, promote thus to charge to said electrical storage device from said source power supply; And
Have operational mode predicting unit and switch unit,
The operational mode that said operational mode predicting unit prediction elevator moves next time is power mode of operation or regeneration operational mode,
Said switch unit switches said the 3rd threshold value according to the operational mode that is predicted by said operational mode predicting unit.
7. elevator drive system as claimed in claim 6 is characterized in that,
Said operational mode predicting unit is predicted the operational mode that elevator moves next time according to the output of the weight sensor of call login information and lift car.
8. elevator drive system as claimed in claim 6 is characterized in that,
Said operational mode predicting unit basis comprises from the information of the information of the time ladder passenger's who detects elevator lobby time ladder occupant detection unit predicts the operational mode of next time moving after elevator stops.
9. like claim 1 or 2 described elevator drive systems, it is characterized in that,
Have operational mode predicting unit and change unit,
Said operational mode predicting unit predicts that according to the destination floor information and the call login information of elevator the operational mode of next time moving after elevator stops is power mode of operation or regeneration operational mode,
Said Request for Change unit changes at least one threshold value in the said first threshold and second threshold value according to current operational mode of elevator and the operational mode of operation next time that is predicted.
10. like claim 1 or 2 described elevator drive systems, it is characterized in that,
Have the elevator maximum go distance acquiring unit with the change unit,
Said elevator maximum is gone distance acquiring unit from the maximum operating range of the elevator in the service range information acquisition services scope of elevator,
Said Request for Change unit changes at least one threshold value in the said threshold value according to the length of the said maximum operating range of the operational mode of elevator and elevator.
11. like claim 1 or 2 described elevator drive systems, it is characterized in that,
In lift car or in the elevator lobby, be provided with read out instrument, said read out instrument shows at least a information in the charge capacity that discharges and recharges running-active status and said electrical storage device of the operational mode of said elevator, said electrical storage device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011118646A JP5335855B2 (en) | 2011-05-27 | 2011-05-27 | Elevator drive system |
| JP2011-118646 | 2011-05-27 |
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| Publication Number | Publication Date |
|---|---|
| CN102795529A true CN102795529A (en) | 2012-11-28 |
| CN102795529B CN102795529B (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210159871.9A Expired - Fee Related CN102795529B (en) | 2011-05-27 | 2012-05-22 | Elevator driving system |
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| Country | Link |
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| JP (1) | JP5335855B2 (en) |
| CN (1) | CN102795529B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104030112A (en) * | 2013-03-08 | 2014-09-10 | 东芝电梯株式会社 | Elevator control device and elevator control method |
| CN106006252A (en) * | 2015-03-31 | 2016-10-12 | 东芝电梯株式会社 | Control device for elevator |
| CN106560339A (en) * | 2015-10-06 | 2017-04-12 | 奥迪股份公司 | Method For Operating Motor Vehicle And Corresponding Motor Vehicle |
| CN109496197A (en) * | 2016-06-28 | 2019-03-19 | 通力股份公司 | Electric device |
| CN109823933A (en) * | 2019-03-29 | 2019-05-31 | 北京索德电气工业有限公司 | The four-quadrant elevator converter plant and topological structure of integrated emergency power supply |
| CN111463881A (en) * | 2019-01-21 | 2020-07-28 | 株式会社岛津制作所 | Power supply device for X-ray tube and X-ray device |
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| JP5684338B2 (en) * | 2013-07-10 | 2015-03-11 | 東芝エレベータ株式会社 | Elevator control device and elevator control method |
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| JP6199429B2 (en) * | 2016-03-16 | 2017-09-20 | 東芝エレベータ株式会社 | Elevator control device and elevator control method |
| JP6222857B2 (en) * | 2016-03-22 | 2017-11-01 | 東芝エレベータ株式会社 | Elevator control device and elevator control method |
| KR101878216B1 (en) * | 2016-04-22 | 2018-07-13 | 현대엘리베이터주식회사 | Elevator power control apparatus and elevator system having the same |
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| CN104030112A (en) * | 2013-03-08 | 2014-09-10 | 东芝电梯株式会社 | Elevator control device and elevator control method |
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| CN106560339B (en) * | 2015-10-06 | 2018-10-30 | 奥迪股份公司 | Method for running motor vehicle and corresponding motor vehicle |
| CN109496197A (en) * | 2016-06-28 | 2019-03-19 | 通力股份公司 | Electric device |
| CN109496197B (en) * | 2016-06-28 | 2022-01-04 | 通力股份公司 | Electric power device |
| CN111463881A (en) * | 2019-01-21 | 2020-07-28 | 株式会社岛津制作所 | Power supply device for X-ray tube and X-ray device |
| CN111463881B (en) * | 2019-01-21 | 2023-04-18 | 株式会社岛津制作所 | Power supply device for X-ray tube and X-ray device |
| CN109823933A (en) * | 2019-03-29 | 2019-05-31 | 北京索德电气工业有限公司 | The four-quadrant elevator converter plant and topological structure of integrated emergency power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5335855B2 (en) | 2013-11-06 |
| JP2012246095A (en) | 2012-12-13 |
| CN102795529B (en) | 2014-12-03 |
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