CN109104893A - The control device of elevator and the control method of elevator - Google Patents
The control device of elevator and the control method of elevator Download PDFInfo
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- CN109104893A CN109104893A CN201680083523.4A CN201680083523A CN109104893A CN 109104893 A CN109104893 A CN 109104893A CN 201680083523 A CN201680083523 A CN 201680083523A CN 109104893 A CN109104893 A CN 109104893A
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- Prior art keywords
- elevator
- current
- threshold value
- idle current
- value
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
- Rectifiers (AREA)
- Inverter Devices (AREA)
Abstract
Have: current transformer and controller, the switching that the controller passes through execution current transformer while alternating current ingredient is separated into effective current and idle current progress power factor controlling, thus DC power supply corresponding with target value is supplied to the motor of traction machine, controller is when generating idle current instruction value, when elevator is in power running, elevator will be made to be set as threshold value with setting value compared to the power running for being difficult to flow through idle current in regeneration operating in power running, thus generate idle current instruction value, and when elevator is in regeneration operating, elevator will be made to be set as threshold value with setting value compared to the regeneration operating for easily flowing through idle current in power running in regeneration operating, thus generate idle current instruction value.
Description
Technical field
The present invention relates to for realizing in the distinctive traveling control of the elevator in frequent transitions power running and regeneration operating
The control device of the elevator of the raising of control performance and the control method of elevator.
Background technique
With with the appearance for the high-speed switching devices that SiC (silicon carbide) is representative, the switching frequency of inverter and current transformer
(switching frequency) just becomes high frequency.High frequency, energy are carried out by the switching frequency to inverter and current transformer
Enough reduce the capacity of the inductor rectified to the electric current after switching.As a result, such height can applied by having
In the control device of the elevator of fast switching control the advantages of miniaturization of the apparatus.
On the other hand, short circuit short-circuit between preventing device is equipped in the control device of such elevator prevents time Td.
Due to the relationship between inverter and the stabilized driving of current transformer, short circuit prevents time Td can not be with the high frequency of switching frequency
Proportionally shorten.
In the case where can not reduce short circuit prevents time Td, in current transformer, exist power side occur superfluous output,
And occur to export insufficient project in regeneration side.For such project, there are a kind of prior arts, have following knot
Structure: power running and regeneration operating are judged according to the instruction value of effective current ingredient, change makes power factor controlling with invalid electricity
Stream starts the threshold value of flowing (for example, referring to patent document 1).
By having such structure, patent document 1 realize the increase for inhibiting stringing voltage in regeneration operating and
Inhibit the reduced movement of stringing voltage when power running.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 4-285472 bulletin
Summary of the invention
Subject to be solved by the invention
But there are following projects for the prior art.
Based on following viewpoint, structure as patent document 1 is applied to the continually switching kinetics operating as elevator
Current transformer with regeneration operating is inappropriate.That is, in the control device of elevator, if poor, the nothing of following characteristic of conversion
Method, which obtains desired output improvement performance, will then damage the traveling characteristics of carriage in addition, if conversion is unsmooth, to need
Further improve control performance.
The present invention is completed to solve project as described above, and its object is to obtain one kind to improve power
The control device of the elevator of characteristic and elevator traveling characteristics and the control method of elevator are followed in operating and the conversion of regeneration operating.
Means for solving the problems
The control device of elevator of the invention has: current transformer is converted to the AC power source provided via reactor
DC power supply, and DC power supply is supplied to the motor of the traction machine driven to elevator；And controller, by inciting somebody to action
The alternating current ingredient of AC power source is separated into effective current and idle current come execution while control power factor
Thus DC power supply corresponding with target value is supplied to motor by the switching of current transformer, wherein controller determines that elevator is to be in
In power running or in regeneration operating, when generating the idle current instruction value for controlling idle current, in power running
When middle, so that setting the 1st threshold value compared to the mode for being difficult to flow through idle current in regeneration operating in power running and generating
Idle current instruction value, and when in regeneration operating, so that invalid compared to being easily flowed through in power running in regeneration operating
The mode of electric current sets the 2nd threshold value and generates idle current instruction value.
In addition, the control method of elevator of the invention is applied to the control device of the elevator with current transformer and controller,
It is executed by controller, the AC power source provided via reactor is converted to DC power supply by current transformer, and DC power supply is mentioned
The motor of the traction machine driven to elevator is supplied, controller by the alternating current ingredient of AC power source by being separated into
Effect electric current and idle current, thus will be corresponding with target value come the switching of execution current transformer while control power factor
DC power supply be supplied to motor, include: that step 1 is rapid in the control method of elevator, in the step 1 is rapid, determine elevator be
In power running or in regeneration operating；And second step, in the second step, when generation is for controlling idle current
Idle current instruction value when, when in power running, so that compared to being difficult to flow through nothing in regeneration operating in power running
The mode of effect electric current sets the 1st threshold value and generates idle current instruction value, and so that in regeneration operating when in regeneration operating
In set the 2nd threshold value compared to the mode for easily flowing through idle current in power running and generate idle current instruction value.
Invention effect
According to the present invention, has following structure:, can in the primary traveling from starting starting until stopping
The switch instant for judging power running state and regeneration operating state generates idle current appropriate according to each operating condition and refers to
It enables.As a result, can obtain can improving the conversion of power running/regeneration operating follows characteristic and elevator traveling characteristics
The control device of elevator and the control method of elevator.
Detailed description of the invention
Fig. 1 is the circuit structure diagram of the control device comprising the PWM converter in embodiments of the present invention 1.
Fig. 2 is the figure for showing the internal structure of the idle current reference circuit in embodiments of the present invention 1.
Fig. 3 is the overall structure figure of the elevator device of the control device of the elevator comprising embodiments of the present invention 1.
Fig. 4 is the effective electricity in controlling of advancing for showing the control device of the elevator of embodiments of the present invention 1 and being carried out
Stream instruction IP* the figure of time change.
Fig. 5 is invalid in the controller shown by the inclusion of the control device of the elevator in embodiments of the present invention 1
The figure for the threshold value exception processes that current control circuit executes.
Fig. 6 is invalid in the controller shown by the inclusion of the control device of the elevator in embodiments of the present invention 1
The figure of threshold value exception processes that current control circuit executes, different from Fig. 5 of front.
Specific embodiment
In the following, using attached drawing to the preferred embodiment of the control device of elevator of the invention and the control method of elevator into
Row explanation.
Embodiment 1.
Fig. 1 is the circuit structure diagram of the control device comprising the PWM converter in embodiments of the present invention 1.Although not
Diagram in detail, but PWM converter 1 is exchanged by constituting with the diode bridge circuit connecting from arc extinction type switch element inverse parallel
Input side is via AC reactor 2 and AC power source VACConnection.In addition, the DC output side in PWM converter 1 is connected in parallel to filter
Wave capacitor 4 and load 5.
The DC voltage V of the detection PWM converter 1 of current detection circuit 6.7 comparison voltage of voltage control circuit instruct V* and
DC voltage V, and export effective current instruction IP*, so that the deviation reduces.
Phase detecting circuit 9 is according to the voltage output phase signal θ of AC power sourcePS.Current detection circuit 17 is according to by electricity
Alternating current IR, IS that current sensor 12R, 12S are detected and the supply voltage V detected by phase detecting circuit 9ACPhase
Signal θPSOperation, separation and the effective current I for exporting the effective component as alternating currentPWith the invalid electricity as invalid components
Flow IQ。
In addition, in Fig. 1, the case where instantiating the electric current using R phase and S phase in current detector detection three-phase, but
It is that the present invention is not limited to such structures.Using the structure of the electric current of any two-phase or whole three-phases in detection three-phase, also can
Enough obtain identical effect.
Effective current control circuit 14 instructs I according to the effective current exported from voltage control circuit 7P* it is examined with by electric current
The effective current I that slowdown monitoring circuit 17 calculatesPBetween deviation, calculate PWM converter 1 effective voltage instruct eP*.On the other hand,
Idle current control circuit 15 instructs I according to by the calculated idle current of aftermentioned idle current reference circuit 18Q* and by electricity
The idle current I that current detection circuit 17 calculatesQBetween deviation, calculate PWM converter 1 dead voltage instruct eQ*。
Pwm control circuit 16 instructs e according to effective voltageP*, dead voltage instructs eQ* with supply voltage VACPhase letter
Number θPSExport the switching command SW to the self-extinguishing type switch element of PWM converter 1.
In addition, in Fig. 1, voltage control circuit 7, effective current control circuit 14, idle current control circuit 15, PWM
Control circuit 16 and idle current reference circuit 18, which are equivalent to, exports switching command SW's according to the testing result of each detection circuit
The internal structure of controller 30.
In the control device of the elevator constituted in this way, the present application is technically characterized in that the invalid electricity of above-mentioned utilization
It flows reference circuit 18 and calculates idle current instruction IQ* gimmick is described in detail it using Fig. 2.
Fig. 2 is the figure for showing the internal structure of the idle current reference circuit 18 in embodiments of the present invention 1.This implementation
Idle current reference circuit 18 in mode 1 be configured to have threshold decision circuit 18a, quadratic sum ingredient counting circuit 18b and
Power factor control circuit 18c.
When effective current instructs IPWhen being * more than or equal to 0, that is, when PWM converter 1 carries out AC power direct transform being straight
When the power running of galvanic electricity power, threshold decision circuit 18a is calculated in the power factor controlling of rear class by using following formula (1)
The threshold value used, when effective current instructs IP* it is negative, that is, when PWM converter 1 carries out direct current power being inversely transformed into alternating current
When the regeneration operating of power, the threshold value used in the power factor controlling of rear class is calculated by using following formula (2).
Work as IPWhen *≤0, threshold value=Vlim (1)
Work as IP* when < 0, threshold value=Vlim- Δ Vd (2)
Wherein, Vlim is the ingredient that the voltage limit that can be exported by PWM converter 1 determines.In addition, Δ Vd is up and down
Short circuit prevents the correction voltage ingredient of time Td, such as (3) calculate according to the following formula.
Δ Vd=DC bus-bar voltage [V] × upper and lower short circuit prevents the time [sec] × switching frequency [Hz] (3)
Quadratic sum ingredient counting circuit 18b calculates effective voltage and instructs eP* e is instructed with dead voltageQ* quadratic sum.So
Afterwards, power factor control circuit 18c is according to by the calculated threshold value of threshold decision circuit 18a and by quadratic sum ingredient counting circuit
Deviation between the calculated quadratic sum of 18b instructs I to generate idle currentq*。
As described above, when being compared with quadratic sum ingredient, so that Vlim, Δ Vd also become with quadratic sum into split-phase
Mode with dimension calculates threshold value.In addition, when being compared with a square root sum square signal, so that Vlim, Δ Vd
Also become and calculate threshold value with the mode of square root signal identical dimensional.
In general, the Td correction in PWM converter 1 is changed into remaining output in power running side, and in regeneration side as defeated
Deficiency plays a role out.In addition, flowing through idle current to improve the voltage utilization of PWM converter 1, carry out being equivalent to electricity
The operation of the so-called weak excitation con-trol of machine.
Here, when PWM converter 1 is by high switching frequency, the ratio of Td correction voltage is got higher, and leads to voltage utilization
Reduction.Therefore, in the present application, determine that PWM converter 1 is gone back in power running according to effective current instruction value etc.
It is dynamically to change the power factor controlling threshold that Td correction voltage is considered in setting according to result is determined in regeneration operating
Value.
It by having such structure, can be difficult to flow through idle current in power side, and be easy stream in regeneration side
Cross idle current.As a result, it is compared with the past, it can follow and precisely accordingly be given birth to power running/regeneration operating
I is instructed at idle currentP*, it can be improved the voltage utilization of current transformer.
In other words, by using the idle current reference circuit 18 being illustrated in Fig. 1, Fig. 2, using SiC that
When the high-speed switching devices of sample act PWM converter with high switching frequency, in addition to can be realized AC reactor 2 miniaturization it
Outside, additionally it is possible to carry out electrical power conversion in the case where deteriorating voltage utilization necessity degree with Shangdi.
Next, hereinafter, being applied to elevator to by the control device of the PWM converter of present embodiment 1 shown in FIG. 1
The case where control, is described in detail.
Fig. 3 is the overall structure figure of the elevator device of the control device of the elevator comprising embodiments of the present invention 1.This
In, the controller 30 in Fig. 3 is equivalent to the controller 30 of front control PWM converter 1 shown in FIG. 1.In addition, negative in Fig. 1
Carry 5 motors for being equivalent to traction machine 31.In addition, hereinafter, the motor of traction machine 31 being referred to as traction machine 31 and is illustrated.
Carriage 35 is connected by main rope 33, and main rope 33 is winded on traction machine 31, is connected via deflector sheave 32 and counterweight 34
It connects.Traction machine 31 obtains driving instruction 39 from controller 30 and goes up and down carriage 35.
Driving instruction 39 is by being located at each stop operation panel 38a~38c or sedan-chair of stop 40a~40c by passenger operation
Operation panel 36 in carriage in compartment 35 and be set direction of travel so that carriage 35 goes to the stop as target, driving instruction
39 are issued from controller 30.
In addition, the meausring apparatus 37 for being set to carriage etc. detects the load in carriage 35, so as to determine the movement of carriage
It is power or regeneration.Then, controller 30 can determine that elevator is with dynamic according to the load in direction of travel and carriage 35
Power operating is activated or is activated with regeneration operating.
Also, the threshold decision circuit 18a in 30 pairs of front idle current reference circuits 18 shown in Fig. 2 of controller is sent
Power/regenerated judgement result.That is, on startup, idle current reference circuit 18 can be according to based on direction of travel and carriage
The judgement result of load in 35, which is known, to be activated with power running or is activated with regeneration operating.
Here, it as the distinctive movement of elevator, generates at the time of the interior switching kinetics operating of primary traveling and regeneration operating.
Therefore, in such conversion, by suitably setting change power factor as described above by idle current reference circuit 18
Control threshold value, to also be able to suppress the reduction of voltage utilization in the case where executing elevator controlling with high switching frequency.
Fig. 4 is the effective current instruction I shown in the traveling control of the elevator of embodiments of the present invention 1P* time becomes
The figure of change.More specifically, shown in the Fig. 4 current transformer current instruction value in following two operation mode A, B when
Between change.
Operation mode A: in starting since the 1st floor the 2nd floor of direction is by power running, when the 2nd floor of arrival
When be converted to from power running regeneration operating state operation mode
Operation mode B: in starting since the 2nd floor the 3rd floor of direction is by regeneration operating, when the 3rd floor of arrival
When be converted to from regeneration operating power running state operation mode
It is divided into the control of the controller 30 when step 1~step 3 pair executes such operation mode A or operation mode B below
System is illustrated.
< step 1 >: processing when starting
Controller 30 can be according to the direction of travel of load and carriage 35 in the carriage 35 detected by meausring apparatus 37
Combination judge that carriage is to be activated as power running or be activated as regeneration operating.Specifically, controller 30
Situation can be divided into 1~situation of situation 4 below to judge power running or regeneration operating.
Situation 1: when loading the weight for being more than or equal to counterweight 34 in carriage and direction of travel is ascent direction, it is determined as
Power running
Situation 2: when loading the weight for being lower than counterweight 34 in carriage and direction of travel is ascent direction, it is judged to regenerating
Operating
Situation 3: when duty factor counterweight 34 is again in carriage and direction of travel is descent direction, it is determined as regeneration operating
Situation 4: when loading the weight for being less than or equal to counterweight 34 in carriage and direction of travel is descent direction, it is determined as
Power running
Traveling control until < step 2 > starts until slowing down
Start starting after until starting for the deceleration stopped in destination, 30 use of controller in step
The corresponding threshold value of the power running or regeneration operating determined in rapid 1 generates idle current and instructs IQ*, the traveling of elevator is executed
Control.
Traveling after < step 3 > deceleration starts controls
Controller 30 is converted to deceleration regime from acceleration or constant speed state, thus estimates that front is shown in Fig. 4 and transports from power
At the time of walking around at the time of being changed to regeneration operating or be converted to power running from regeneration operating.In addition, controller 30 can root
At the time of estimating operating condition switching according to the information of operation mode, in addition, as illustrated by Fig. 2 using front, also
I can be instructed according to effective currentP* positive and negative values are detected.
Then, controller 30 uses above formula (1) in power running, above formula (2) is used in regeneration operating, according to operating
State switching threshold generates idle current instruction appropriate.
Fig. 5 be show include embodiments of the present invention 1 elevator control device controller 30 in invalid electricity
The figure of threshold value exception processes performed by flow control circuit 18.Specifically, show front it is shown in Fig. 4 with operation mode A,
The result of the corresponding threshold value exception processes of B.
As shown in figure 5, the controller 30 in present embodiment 1 will be equivalent to up and down according to above formula (1) in power running
Short circuit prevents the Δ Vd of the correction voltage ingredient of time Td to be added with Vlim, thus dynamically changes given threshold.On the other hand,
In regeneration operating, controller 30 subtracts Δ Vd from Vlim according to above formula (2), thus dynamically changes given threshold.
As a result, even if the deceleration in primary advance generates elevator as the change of polarity of exchange of electric power when starting
In distinctive control environment, also idle current appropriate can be executed according to operating condition and controlled, in power running/regeneration operating
Conversion when also can be realized and good follow characteristic.
In addition, Fig. 6 be show include embodiments of the present invention 1 elevator control device controller 30 in nothing
It imitates performed by current control circuit 18, the figure of the threshold value exception processes different from Fig. 5 of front.Specifically, in Fig. 6 institute
In the threshold value exception processes shown, other than the processing of prior figures 5, also by making it be changed to ramp function in switching threshold
Shape or low pass filtered are wavy, to realize the further improvement of control characteristic.
In this way, by implementing ramp function or the processing based on low-pass filtering, threshold value can be prevented quickly stepwise
Switching, changes of threshold amount per unit time can be limited within feasible value.As a result, due to threshold smoothing cutting
It changes, therefore there is the generation for inhibiting to bring unhappy vibration to carriage 35, so as to realize the effect of smoothly carriage movement.
As described above, according to embodiment 1, can a kind of offer idle current control circuit, idle current control electricity
Road is compared with the past in the operating of continually switching kinetics and the control of the elevator of regeneration operating to realize high-precision controlling
Energy.That is, realizing following structure: in elevator traveling, can predict power/regeneration operating switch instant, and being capable of root
Idle current instruction appropriate is generated according to operating condition.
Specifically, on startup, determining that power running or regeneration are transported according to load in carriage and direction of travel
Turn.In addition, the value instructed according to the information of operation mode or effective current is when slowing down come the predictive conversion moment.Also, have
Following structure: in switch instant, when setting is for generating the power factor controlling threshold value of idle current instruction, to being based on
Being equivalent to upper and lower short circuit prevents the plus and minus calculation of correcting value of value of the correction voltage ingredient of time from switching over.
As a result, it is possible to obtain to be dynamically generated idle current instruction appropriate according to operating condition to execute row
Into control, the control dress that the elevator of characteristic and elevator traveling characteristics is followed in the conversion of power running/regeneration operating can be improved
Set the control method with elevator.
In addition, in the above-described embodiment, enumerating an example of SiC as high-speed switching devices, still, it is greater than as band gap
The wide band gap semiconducter of silicon, other than SiC, there are also for example gallium nitride material or diamonds.
It is such by wide band gap semiconducter formed from arc extinction type switch element and the bridge circuit being made of diode
Voltage-resistent characteristic is high, and allowable current density is also high.Therefore, the miniaturization that can be realized bridge circuit, by using miniaturization
Bridge circuit can be realized the miniaturization for being assembled with the semiconductor module of bridge circuit.
Further, since heat resistance is also high, therefore it can be realized miniaturization and the water cooling portion of the radiating fin of radiator
Air-cooledization, therefore can be realized miniaturising for semiconductor module.
Further, since power loss is low, therefore can be realized the high efficiency from arc extinction type switch element and diode, into
And it can be realized the high efficiency of semiconductor module.
Further, since can carry out high frequency to switching frequency can be realized companion thus, it is possible to reduce the capacity of inductor
With AC reactor miniaturization, the further miniaturization of control device as elevator.
In addition, though wishing to be formed from arc extinction type switch element and diode both sides by wide band gap semiconducter, but can also be with
It is to be formed from the either side in arc extinction type switch element and diode by wide band gap semiconducter.In this case, it can also obtain
Obtain said effect.
Claims (7)
1. a kind of control device of elevator, the control device of the elevator have:
The AC power source provided via reactor is converted to DC power supply, and the DC power supply is supplied to by current transformer
To the motor for the traction machine that elevator is driven；And
Controller, by the way that the alternating current ingredient of the AC power source is being separated into effective current and idle current come to function
Rate factor executes the switching of the current transformer while control, thus provide the DC power supply corresponding with target value
To the motor, wherein
The controller determines that the elevator is in power running or in regeneration operating, when generation is for controlling the nothing
When imitating the idle current instruction value of electric current, when in the power running, so that in the power running compared to described in again
The mode for being difficult to flow through the idle current in raw operating sets the 1st threshold value and generates the idle current instruction value, and in institute
When stating in regeneration operating, the idle current is easily flowed through so that comparing in the power running in the regeneration operating
Mode sets the 2nd threshold value and generates the idle current instruction value.
2. the control device of elevator according to claim 1, wherein
The threshold value for being used to generate the idle current instruction value is switched to the 2nd threshold from the 1st threshold value by the controller
When being switched to 1 threshold value when value or from the 2nd threshold value, so that variable quantity per unit time is in feasible value
Within mode apply limitation and execute threshold value exception processes.
3. the control device of elevator according to claim 1 or 2, wherein
The short circuit up and down of switch element in the current transformer of the controller in view of executing the switching prevents the time from coming
Set the 1st threshold value and the 2nd threshold value.
4. the control device of elevator according to claim 3, wherein
Set the voltage limit that the current transformer can export as Vlim, it is described up and down short circuit prevent the correction voltage of time at
When Δ Vd being divided to prevent the time [sec] × switching frequency [Hz] for Δ Vd=DC bus-bar voltage [V] × upper and lower short circuit, the control
1st threshold value and the 2nd threshold calculations be by device
1 threshold value=Vlim
2 threshold values=Vlim- Δ Vd,
And generate the idle current instruction value.
5. the control device of elevator according to claim 3 or 4, wherein
The switch element in the current transformer is formed by wide band gap semiconducter.
6. the control device of elevator according to claim 5, wherein
The wide band gap semiconducter is silicon carbide, gallium nitride material or diamond.
7. a kind of control method of elevator, the control method of the elevator is applied to the control of the elevator with current transformer and controller
Device is executed by the controller, and the AC power source provided via reactor is converted to DC power supply by the current transformer, and
The DC power supply is supplied to the motor of the traction machine driven to elevator, the controller passes through by the alternating current
The alternating current ingredient in source is separated into effective current and idle current to execute the change while control power factor
The switching for flowing device, is thus supplied to the motor for the DC power supply corresponding with target value,
Include: in the control method of the elevator
Step 1 is rapid, in the step 1 is rapid, determines that the elevator is in power running or in regeneration operating；And
Second step, in the second step, when generating the idle current instruction value for controlling the idle current, described
When in power running, it is difficult to flow through the side of the idle current in the regeneration operating so that comparing in the power running
Formula sets the 1st threshold value and generates the idle current instruction value, and when in the regeneration operating, so that in regeneration fortune
It sets the 2nd threshold value compared to the mode for easily flowing through the idle current in the power running in turning and generates the idle current
Instruction value.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/058992 WO2017163312A1 (en) | 2016-03-22 | 2016-03-22 | Elevator control device and elevator control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109104893A true CN109104893A (en) | 2018-12-28 |
| CN109104893B CN109104893B (en) | 2020-06-23 |
Family
ID=59900099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680083523.4A Active CN109104893B (en) | 2016-03-22 | 2016-03-22 | Elevator control device and elevator control method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6611909B2 (en) |
| CN (1) | CN109104893B (en) |
| WO (1) | WO2017163312A1 (en) |
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- 2016-03-22 JP JP2018506656A patent/JP6611909B2/en active Active
- 2016-03-22 CN CN201680083523.4A patent/CN109104893B/en active Active
- 2016-03-22 WO PCT/JP2016/058992 patent/WO2017163312A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2017163312A1 (en) | 2018-12-20 |
| JP6611909B2 (en) | 2019-11-27 |
| WO2017163312A1 (en) | 2017-09-28 |
| CN109104893B (en) | 2020-06-23 |
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