CN106385101A - Method and device for realizing power supply for automatic rescue device of high-power type elevator - Google Patents
Method and device for realizing power supply for automatic rescue device of high-power type elevator Download PDFInfo
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- CN106385101A CN106385101A CN201610844377.4A CN201610844377A CN106385101A CN 106385101 A CN106385101 A CN 106385101A CN 201610844377 A CN201610844377 A CN 201610844377A CN 106385101 A CN106385101 A CN 106385101A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
-
- 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
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
-
- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a method and device for realizing power supply for an automatic rescue device of a high-power type elevator. The method includes the following steps that: whether an external power grid into which the elevator is connected is normal is detected based on a power grid detection module in the elevator; when the external power grid is abnormal, a contactor on the external power grid is switched off, and a backup power source in the automatic rescue device is adopted to supply power for the elevator, a low-voltage battery pack being adopted as the backup power source in the automatic rescue device; when the backup power source in the automatic rescue device is adopted to supply power, the backup power source is controlled to complete step-up processing through a three-phase six-bridge arm interleaved DCDC step-up module; and current and voltage which have been subjected to step-up processing are outputted to an inverter module. With the method and device provided by the embodiments of the present invention adopted, direct-current high voltage existing in an existing device for a long time is eliminated; the low-voltage battery pack is adopted to replace a small-capacity high-voltage battery, and therefore, battery performance can be improved, and higher output power can be achieved. The method and device can withstand impulse current energy and can be applied to the automatic rescue operation of middle and large-scale elevators of which the power are 40kW or above.
Description
Technical field
The present invention relates to elevator technology field, more particularly, to a kind of high-power type automatic rescue device for elevator realization power supply
Method and device.
Background technology
Fig. 1 shows existing direct power supply type medium-sized or large-scale power elevator automatic rescue device structural representation,
By corresponding automatic rescue device between external power grid and elevator, in civil power normal power supply, master control template contral connects outer suspension
Realize circuit ON with the electric shock device of escalator, be powered by external power grid, when civil power is unable to normal power supply, main control module control
Make the electric shock device disconnection that control connects outer suspension and escalator, the electric shock device of connection connection stand-by power supply and elevator is realized circuit and connect
Logical, it is powered by stand-by power supply.By electrical network, it generally detects that triggering main control module sends corresponding control instruction, standby
When power supply is powered, through the control output of management module of discharging, then inversion process input is realized to elevator by inversion module.
High-tension battery group direct inversion is usually used at present and exports to elevator supply, it is generally by low capacity high-tension battery
Group, set of cells charge and charge management module, pretrigger control module, inversion module, dc bus discharge resistance and control mould
Block, main control module and man machine interface composition.The lead-acid battery commonly used on the market at present or lithium battery etc., are connected into high-tension battery group
Its Charge Management and electric discharge complex management afterwards, life and reliability is difficult to ensure that；High direct voltage present in system, more so that tieing up
Shield is difficult.
Large-power High-Speed elevator automatic rescue device on the market is generally connected into using the battery of 40～48 7AH at present
Set of cells is reverse into three-phase and four-line AC380V, and it is left that its peak power output changes usually 10～12kW with battery dump energy
The right side, the ability that anti-impact swashs spike is generally determined by the super capacitor on dc bus；Its shortcoming mainly has：Connected with 48 batteries
Set of cells as a example set of cells output voltage range be DC480V～DC660V, inversion module need voltage stabilizing export, need adapt to
There is very big range of accommodation, excessive regulation depth can increase harmonic wave of output voltage distortion；Elevator powered on moment and startup fortune
Row moment has great current spike to produce, and elevator also can produce short time increase load, this automatic help when accelerating and slowing down
Device can only rely on the overcurrent capability of battery, or to be realized using more jumbo battery, and the lead-acid battery of high-quality is usual
Maximum also can only support that 3C discharges；Excessive battery series connection makes the complexity that battery charging and discharging management becomes, and increased single electricity
The probability leading to whole battery damage is damaged in pond.
Conventional high-power elevator direct power supply type power failure automatic rescue device generally adopts the direct inversion of high-tension battery at present
Produce required voltage, using high-tension battery group in which, management of charging and discharging is complicated, and battery performance is poor, bulky, due to
High-tension battery group is usually directly that high-power type elevator required voltage value is in more than 380V, the electricity of set of cells to elevator supply
Pressure substantially exceeds human safety voltage so that battery replacement cost is high, and due to there being uncontrolled high direct voltage sustainable existence
Lead to easily produce potential safety hazard when producing installation and battery maintenance.And the direct-furnish type that the middle low power elevator of routine uses has a power failure
Automatic rescue device, has because output, the reason such as current rush cannot use in high-power elevator.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, the invention provides a kind of automatic to high-power type elevator
Deliverance apparatus realize the method and device of power supply, and it achieves the cooperation of low tension battery group and replaces high-power elevator automatic help originally
The high-tension battery group of device, carries out boosting process by boost module, eliminates the deficiency of prior art, eliminates in existing apparatus
The long-time high direct voltage existing, the potential safety hazard that may lead to during eliminating the production maintenance bringing because of high direct voltage.
In order to solve the above problems, the present invention proposes the side that a kind of high-power type automatic rescue device for elevator realizes power supply
Method, comprises the steps：Detect whether the dispatch from foreign news agency that elevator accesses is normal based on the electrical network detection module in elevator, in detection dispatch from foreign news agency
When abnormal, disconnect the catalyst on external power grid, using stand-by power supply in automatic rescue device, high-power type elevator is supplied
Electricity, stand-by power supply in more than 40kW, described automatic rescue device for the described high-power type elevator rated power adopts low tension
Pond group, within described low tension battery group voltage is 100V；During in using emergency set, stand-by power supply is powered, control
Stand-by power supply completes boosting by three-phase six brachium pontis alternation parallel DC/DC boost module and processes；Electric current after boosting is processed and electricity
Pressure output, to inversion module, completes the power supply of high-power type elevator.
During in using automatic rescue device, stand-by power supply is powered to high-power type elevator, using outer voltage, electricity
Stream internal ring, constant voltage and current limiting mode controls boosting to process.
Described outer voltage, current inner loop and constant voltage and current limiting mode control output procedure to include：
Sampling and outputting voltage value and output current value；
Compared with reference voltage by output voltage values, and pass through the first pi regulator, produce output current reference value；
Judge whether described current reference value is more than current upper limit value, if described current reference value is more than higher limit, with
Described current upper limit value is as comparing output result, if during the non-higher limit of described current reference value, using current reference value as
Relatively output result；
Compare with the output current value of sampling and pass through the second pi regulator generation PWM reference based on comparing output result
Value；
Control signal in three-phase six brachium pontis alternation parallel DC/DC boost module is decoupled into according to PWM reference value.
Described boosting is processed after electric current and voltage output also include to inversion module：
Braking resistor electric discharge is driven based on PWM reference value..
Described three-phase six brachium pontis alternation parallel DC/DC boost module is by boost module power tube, transformator and rectification module group
Conjunction forms.
Methods described also includes：
Sample input voltage values and input current value；
Input voltage value based on sampling and input current value complete input power and calculate；
Input voltage value based on sampling and input current value complete battery power discharge management, the estimation of set of cells total electricity；
Sampling and outputting voltage value and output current value；
Output voltage values based on sampling and output current value complete output and calculate；
Efficiency calculation is completed based on input power and output.
Accordingly, the invention allows for a kind of automatic rescue device for elevator, including：
Based on the electrical network detection module in elevator, dispatch from foreign news agency detection module, for detecting that the dispatch from foreign news agency that high-power type elevator accesses is
No normal, described high-power type elevator rated power in more than 40kW,；
Automatic help control module, for when detecting that dispatch from foreign news agency is abnormal, after the catalyst on disconnecting external power grid, adopting
Stand-by power supply is powered to high-power type elevator, wherein：
Described stand-by power supply adopts low tension battery group, within described low tension battery group voltage is 100V；Described automatic help
Control module, during elevator is powered, controls stand-by power supply to pass through three-phase six brachium pontis alternation parallel DC/DC boost module
Complete boosting to process；Electric current after boosting is processed and voltage output are to inversion module.
Described automatic help control module in power supply process, using outer voltage, current inner loop, constant voltage and current limiting mode control
Boosting processed is processed.
Described automatic help control module includes：
Voltage output sampling module, for sampling and outputting voltage value；
Electric current exports sampling module, for sampled output current value；
Voltage loop module, for being compared with reference voltage by output voltage values, and is passed through the first pi regulator, produces defeated
Go out current reference value；
Current limliting module, for judging whether described current reference value is more than current upper limit value, if described current reference value is big
When higher limit, it is as comparing output result using described current upper limit value, if during the non-higher limit of described current reference value, with electricity
Stream reference value is as comparing output result；
Electric current loop module, for comparing based on the output current value comparing output result with sample and passing through the 2nd PI to adjust
Device produces PWM reference value；
PWM module, for the control being decoupled into according to PWM reference value in three-phase six brachium pontis alternation parallel DC/DC boost module
Signal.
Described automatic help control module also includes：
Voltage input sample module, for sample input voltage values；
Electric current input sample module, for input current value of sampling；
Input power module, completes input power for the input voltage value based on sampling and input current value and calculates；
Battery power discharge management module, completes battery power discharge for the input voltage value based on sampling and input current value
Management, the estimation of set of cells total electricity；
Output module, completes output for the output voltage values based on sampling and output current value and calculates；
Efficiency calculation module, for completing efficiency calculation based on input power and output.
In embodiments of the present invention, the cooperation replacement of low tension battery group can be realized in automatic rescue device for elevator originally big
The low capacity high-tension battery group of power elevator automatic rescue device, eliminates the long-time high direct voltage existing in existing apparatus,
The potential safety hazard that may lead to during eliminating the production maintenance bringing because of high direct voltage；Use Large Copacity low tension battery group instead to replace
Low capacity high-tension battery, improves battery performance, simplifies battery charging and discharging management, increases battery life, reduces battery cost.It is based on
Low tension battery group is realized boosting and is processed, it is possible to achieve bigger output, the energy of resistance to current rush, higher efficiency, can fit
Used with the elevator with medium-sized or large-scale power.
It is embodied as middle employing three-phase six brachium pontis alternation parallel DC/DC Boost topology, power tube moves under soft switching conditions
Make, solve power tube heating problem, (boost module up-time efficiency can reach more than 0.94, whole machine effect to improve work efficiency
Rate can reach more than 0.9)；6 frequency multiplication outputs can be realized, reduce the volume of filtering device；Using in outer voltage, electric current
Ring, current limliting Isobarically Control, solving the high current of electricity and converter startup moment presence on elevator, realizing power protection of pipe thus keeping away
Exempt to damage phenomenon.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is commonly medium-sized or large-scale power direct power supply type automatic rescue device for elevator structural representation of the prior art
Figure；
Fig. 2 is the medium-sized or large-scale power direct power supply type automatic rescue device for elevator structural representation in the embodiment of the present invention
Figure；
Fig. 3 is the three-phase six brachium pontis alternation parallel DC/DC boost topology schematic diagram in the embodiment of the present invention；
Fig. 4 is the circuit theory diagrams of the high-power type automatic rescue device for elevator realization power supply in the embodiment of the present invention；
Fig. 5 is the method flow diagram that high-power type automatic rescue device for elevator is realized with power supply in the embodiment of the present invention；
Fig. 6 is the automatic rescue device for elevator structural representation in the embodiment of the present invention；
Fig. 7 is the automatic help control module structural representation in the embodiment of the present invention；
Fig. 8 is another structural representation of automatic help control module in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Whether the dispatch from foreign news agency based on the electrical network detection module detection elevator access in elevator in the embodiment of the present invention is normal,
When detection dispatch from foreign news agency is abnormal, disconnect the catalyst on external power grid, using stand-by power supply in automatic rescue device to high-power type electricity
Ladder is powered, and stand-by power supply in more than 40kW, described automatic rescue device for the described high-power type elevator rated power is adopted
Use low tension battery group, within described low tension battery group voltage is 100V；In using automatic rescue device, stand-by power supply is supplied
In electric process, control stand-by power supply to complete boosting by three-phase six brachium pontis alternation parallel DC/DC boost module and process；At boosting
Electric current after reason and voltage output, to inversion module, complete the power supply of high-power type elevator.
Specific Fig. 2 shows the medium-sized or large-scale power direct power supply type elevator automatic help dress in the embodiment of the present invention
Put structural representation, for the theory structure in Fig. 1, charged and charge management module, direct current liter by low tension battery group, set of cells
Die block, inversion module, main control module and man machine interface composition, improve the set of cells that in automatic rescue device, stand-by power supply is powered
For low tension battery group, exported after being processed using boost module on output electric energy is to inversion module.Here adopt low tension
Pond group and a special boost module instead of commonly medium-sized or large-scale power elevator direct power supply type power failure automatic rescue device
High-tension battery group and pretrigger module, reduce volume, reduces cost；Using low tension battery group, battery can be effectively improved
Life and reliability, reduces charge and discharge control difficulty, also improve change battery install, the safety in maintenance process.
Specifically, show in Fig. 3 in the embodiment of the present invention by three-phase six brachium pontis alternation parallel DC/DC Boost topology
Structural representation, by boost module power tube (VS1, VS2, VS3, VS4, VS5, VS6, VS7, VS8, VS9, VS10, VS11,
VS12), the composition such as transformator (T1, T2, T3), rectification module, inductance L1, electric capacity E2, electric capacity E3, power tube is by three groups of carrier waves
Phase contrast is 120 full-bridge circuit of shifting to, and is connected with three-phase full-bridge rectifier, each is shifted to after transformer secondary Y-connection
Full-bridge advanced arm (VS1VS3, VS5VS7, VS9VS11) ZVS (ZVT) action, each shifts to full-bridge lagging leg
(VS2VS4, VS6VS8, VS10VS12) ZCS (Zero Current Switch) action；Exported by 6 frequencys multiplication, reduce the body of filtering device
Long-pending (L1E2E3).The voltage of one isolation can be provided for inversion module in automatic rescue device inverter operation based on this structure
Reliable and stable DC voltage for 600V, can support positive backward current, it is possible to provide medium-sized or large-scale power automatic help runs
Power demand, also can tackle on elevator electricity, the short-time current spike producing in start-up course.
Fig. 4 shows that the high-power type automatic rescue device for elevator in the embodiment of the present invention realizes the circuit theory of power supply
Figure, including three-phase six brachium pontis alternation parallel DC/DC boost module, discharge resistance control module, input and output voltage current sample mould
Block, accessory power supply etc..Power tube works under soft switching conditions, can export relatively high power for a long time；Using outer voltage, electricity
Stream internal ring, current limliting Isobarically Control, there is very strong anti-short-time current spike ability and overload capacity, solve common middle low power electricity
Terraced automatic rescue device output is not enough, anti-current impulse scarce capacity and high-power elevator drawback cannot be dragged.Solve electricity
On ladder, the high current of electricity and converter startup moment presence, leads to power protection of pipe or damages phenomenon, by gathering output voltage
Signal, by comparing with reference voltage, and by the pi regulator in Voltage loop, produces output current reference value；Work as reference value
During more than higher limit, electric current is limited at higher limit, prevents outside impulse from leading to overcurrent damage or protection phenomenon；The output producing
The pi regulator that current reference value is compared with output current sampled value and passes through in electric current loop produces PWM reference value；According to generation
PWM reference value be decoupled into the control signal of VS1～V13, the product of whole output current and output voltage is output.Electricity
Cell voltage sampling and battery current are using being mainly used to complete battery discharge management function and calculate input power.Dispatch from foreign news agency normal or
During test starting, main control module obtains electric, startup optimization, and the such as normal then main control module of dispatch from foreign news agency enters Charge Management program, and battery is filled
Electricity is managed, and shows correlation behavior；When outer electrical anomaly is more than 3s or test starting, main control module enters automatic help fortune
Row state, and start inversion module and boost module using contact signal, main control module receives starting module by RS485 signal
With the running status of boost module, and in display module show.
In specific implementation process, high-speed dsp is set in whole automatic rescue device for elevator, inside has more than 6 groups independent PWM
Output channel, controls 12 power tubes of 3 groups of misphase 120 phase-shifting full-bridges topology work respectively, more than 5 groups analog digital conversion passages,
Sampling battery voltage, battery current, output voltage, output current, radiator temperature respectively.
In specific implementation process, Fig. 5 shows real to high-power type automatic rescue device for elevator in the embodiment of the present invention
The method flow diagram now powered, comprises the following steps that：
Whether S501, the dispatch from foreign news agency based on the electrical network detection module detection elevator access in elevator are normal, if dispatch from foreign news agency is normal, by
Dispatch from foreign news agency is powered, and continues intervention detection, if dispatch from foreign news agency is abnormal, enters into S502；
S502, detect dispatch from foreign news agency abnormal when, disconnect external power grid on catalyst, using standby electricity in automatic rescue device
Source is powered to elevator,
In specific implementation process, the stand-by power supply in this automatic rescue device adopts low tension battery group；Using automatically rescuing
During stand-by power supply is powered in shaking apparatus, stand-by power supply is controlled to pass through three-phase six brachium pontis alternation parallel DC/DC boost module
Complete boosting to process；Electric current after boosting is processed and voltage output are to inversion module.
S503, startup outer voltage, current inner loop, constant voltage and current limiting mode controls boosting to process.
S504, sampling and outputting voltage value and output current value；
S505, compared with reference voltage by output voltage values, and by the pi regulator in Voltage loop, produce output electricity
Stream reference value；
S506, judge that whether current reference value is more than current upper limit value；
In specific implementation process, if described current reference value is more than higher limit, it is defeated as comparing using current upper limit value
Go out result, if during the non-higher limit of current reference value, using current reference value as comparing output result；
S507, the pi regulator being compared based on the output current value comparing output result with sample and passing through in electric current loop are produced
Raw PWM reference value；
S508, the control signal being decoupled into according to PWM reference value in three-phase six brachium pontis alternation parallel DC/DC boost module；
S509, control stand-by power supply complete boosting by three-phase six brachium pontis alternation parallel DC/DC boost module and process；To rise
Electric current after pressure process and voltage output, to inversion module, complete the power supply of high-power type elevator.
In specific implementation process, it is also based on PWM reference value and drives braking resistor electric discharge.Elevator runs toward underloading direction
When, such as elevator carries energy feedback function, automatic rescue device voltage can be led to raise when energy is sufficiently large, inversion module
Output voltage to be ensured is constant will to be transferred to this portion of energy on dc bus, ultimately result in DC bus-bar voltage and raise.
At this time it is accomplished by braking resistor and discharges this part electricity, decoupling pwm signal out is converted into the control signal control of IGBT
Braking resistor electric discharge processed.
In specific implementation process, this three-phase six brachium pontis alternation parallel DC/DC boost module is by boost module power tube, transformation
Device and rectification module combine.
In specific implementation process, also relate to sample input voltage values and input current value；Input voltage based on sampling
Value and input current value complete input power and calculate；Input voltage value based on sampling and input current value complete battery power discharge
Management, the estimation of set of cells total electricity；Sampling and outputting voltage value and output current value；Output voltage values based on sampling and output electricity
Flow valuve completes output and calculates；Efficiency calculation is completed based on input power and output.
Accordingly, Fig. 6 also show the automatic rescue device for elevator structural representation in the embodiment of the present invention, and this elevator is certainly
Dynamic deliverance apparatus include：
Based on the electrical network detection module in elevator, dispatch from foreign news agency detection module, for detecting that the dispatch from foreign news agency that high-power type elevator accesses is
No normal, this high-power type elevator rated power is in more than 40kW；
Automatic help control module, for when detecting that dispatch from foreign news agency is abnormal, after the catalyst on disconnecting external power grid, adopting
Stand-by power supply is powered to high-power type elevator, wherein：
This stand-by power supply adopts low tension battery group, within this low tension battery group voltage is 100V, such as 100V, 98V, 24V
Etc. low tension battery group；Described automatic help control module, during elevator is powered, controls stand-by power supply to pass through three-phase
Six brachium pontis alternation parallel DC/DC boost modules complete boosting and process；Electric current after boosting is processed and voltage output are to inversion mould
Block.
In specific implementation process, this automatic help control module in power supply process, using outer voltage, current inner loop,
Constant voltage and current limiting mode controls boosting to process.
In specific implementation process, Fig. 7 also show the automatic help control module structural representation in the embodiment of the present invention,
This automatic help control module includes：
Voltage output sampling module, for sampling and outputting voltage value；
Electric current exports sampling module, for sampled output current value；
Voltage loop module, for being compared with reference voltage by output voltage values, and is passed through the first pi regulator, produces defeated
Go out current reference value；
Current limliting module, for judging whether described current reference value is more than current upper limit value, if described current reference value is big
When higher limit, it is as comparing output result using described current upper limit value, if during the non-higher limit of described current reference value, with electricity
Stream reference value is as comparing output result；
Electric current loop module, for comparing based on the output current value comparing output result with sample and passing through the 2nd PI to adjust
Device produces PWM reference value；
PWM module, for the control being decoupled into according to PWM reference value in three-phase six brachium pontis alternation parallel DC/DC boost module
Signal.
In specific implementation process, in specific implementation process, the automatic help that Fig. 8 also show in the embodiment of the present invention controls
Another structural representation of module, based in the structure shown in Fig. 7, this automatic help control module also includes：
Voltage input sample module, for sample input voltage values；
Electric current input sample module, for input current value of sampling.
Input power module, completes input power for the input voltage value based on sampling and input current value and calculates；
Battery power discharge management module, completes battery power discharge for the input voltage value based on sampling and input current value
Management, the estimation of set of cells total electricity；
Output module, completes output for the output voltage values based on sampling and output current value and calculates；
Efficiency calculation module, for completing efficiency calculation based on input power and output.
In embodiments of the present invention, have the ability voluntarily detecting each operational factor of all modules and by internal system
RS485 bus shows in display module, can upload data by the WIFI function in display module if necessary.
Two-stage type automatic rescue device for elevator conventional on the market at present, rated power typically in 1～4kW, imitate by its work
Rate usually less than 85% it is adaptable on the market middle low speed elevator be suitable for that (rated power is less than 40kW, and load-carrying is 1.6～2 tons, fortune
Scanning frequency degree is 1.75～2.5m/s)；(rated power is more than 50kW, and load-carrying is 1.6～2 tons, fortune for powerful high speed object use
Scanning frequency degree is more than 6m/s), it normally runs power and is usually more than 6kW, the short time can reach 10kW in the case of acceleration or deceleration
More than, conventional automatic rescue device for elevator generally cannot use.The present invention is worked using Sofe Switch mode, rated power up to
To more than 6kW, have the ability that extremely strong anti-impact swashs spike, peak power output can reach more than 10kW and can support high-power height
Fast elevator automatic help runs.
During concrete application, 40 can be substituted for using 8 high capacity cells set of cells in parallel and boost module～
The set of cells of 48 battery series connection, it has and the type automatic rescue device identical fan-out capability and overload on current market
Ability, has the ability that higher anti-impact swashs spike；Reduce number of batteries, optimize battery life；Reduce overload capacity to electricity
The dependence of pond group, finds in actual test that 24AH battery can meet basic output and momentary overload exports (48 7AH batteries
Series battery is protected suitable with 8 42AH battery series connection containing electricity), used set of cells can be adjusted according to actual needs and hold
Amount, reduces cost；Stabilize DC bus-bar voltage, after modification, DC bus-bar voltage is stablized in 540～600V.
In embodiments of the present invention, the cooperation replacement of low tension battery group can be realized in automatic rescue device for elevator originally big
The low capacity high-tension battery group of power elevator automatic rescue device, eliminates the long-time high direct voltage existing in existing apparatus,
The potential safety hazard that may lead to during eliminating the production maintenance bringing because of high direct voltage；Use low tension battery group instead and replace high-tension electricity
Pond, improves battery performance, simplifies battery charging and discharging management, increases battery life, reduces battery cost.Real based on low tension battery group
Now boosting is processed, it is possible to achieve bigger output, the energy of resistance to current rush, higher efficiency, applicable and medium-sized or
The elevator of large-scale power uses.It is embodied as middle employing three-phase six brachium pontis alternation parallel DC/DC Boost topology, power tube is opened soft
Action under the conditions of pass, solves power tube heating problem；6 frequency multiplication outputs can be realized, reduce the volume of filtering device；Using electricity
Pressure outer shroud, current inner loop, current limliting Isobarically Control, solve the high current that electricity and converter on elevator start moment and exist, realize work(
Rate protection of pipe is thus avoid damaging phenomenon.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completed with the hardware instructing correlation by program, this program can be stored in a computer-readable recording medium, storage
Medium can include：Read only memory (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
In addition, the method that the above high-power type automatic rescue device for elevator that the embodiment of the present invention is provided realizes power supply
And device is described in detail, specific case used herein is set forth to the principle of the present invention and embodiment,
The explanation of above example is only intended to help and understands the method for the present invention and its core concept；Simultaneously for this area one
As technical staff, according to the present invention thought, all will change in specific embodiments and applications, to sum up institute
State, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. a kind of method that high-power type automatic rescue device for elevator realizes power supply, comprises the steps：
Detect whether the dispatch from foreign news agency that elevator accesses is normal, when detecting that dispatch from foreign news agency is abnormal, breaks based on the electrical network detection module in elevator
Over catalyst on electrical network, using stand-by power supply in automatic rescue device, high-power type elevator is powered, described big work(
Rate type elevator rated power in more than 40kW it is characterised in that：
Stand-by power supply in described emergency set adopts low tension battery group, within described low tension battery group voltage is 100V；Adopting
With stand-by power supply in automatic rescue device during being powered, stand-by power supply is controlled to pass through three-phase six brachium pontis crisscross parallel
DCDC boost module completes boosting and processes；Electric current after boosting is processed and voltage output, to inversion module, complete high-power type
The power supply of automatic rescue device for elevator.
2. high-power type automatic rescue device for elevator as claimed in claim 1 realizes the method for power supply it is characterised in that adopting
During in automatic rescue device, stand-by power supply is powered to elevator, using outer voltage, current inner loop, constant voltage and current limiting side
Formula controls boosting to process.
3. high-power type automatic rescue device for elevator as claimed in claim 2 realizes the method for power supply it is characterised in that described
Outer voltage, current inner loop and constant voltage and current limiting mode control output procedure to include：
Sampling and outputting voltage value and output current value；
Compared with reference voltage by output voltage values, and pass through the first pi regulator, produce output current reference value；
Judge whether described current reference value is more than current upper limit value, if described current reference value is more than higher limit, with described
Current upper limit value is as comparing output result, if during the non-higher limit of described current reference value, using current reference value as comparing
Output result；
Compare with the output current value of sampling and pass through the second pi regulator generation PWM reference value based on comparing output result；
Control signal in three-phase six brachium pontis alternation parallel DC/DC boost module is decoupled into according to PWM reference value.
4. high-power type automatic rescue device for elevator as claimed in claim 3 realizes the method for power supply it is characterised in that described
Electric current after boosting is processed and voltage output also include to inversion module：
Braking resistor electric discharge is driven based on PWM reference value.
5. high-power type automatic rescue device for elevator as claimed in claim 1 realizes the method for power supply it is characterised in that described
Three-phase six brachium pontis alternation parallel DC/DC boost module is combined by boost module power tube, transformator and rectification module.
6. the method that the high-power type automatic rescue device for elevator as described in any one of claim 1 to 5 realizes power supply, its feature
It is, methods described also includes：
Sample input voltage values and input current value；
Input voltage value based on sampling and input current value complete input power and calculate；
Input voltage value based on sampling and input current value complete battery power discharge management, the estimation of set of cells total electricity；
Sampling and outputting voltage value and output current value；
Output voltage values based on sampling and output current value complete output and calculate；
Efficiency calculation is completed based on input power and output.
7. a kind of automatic rescue device for elevator is it is characterised in that include：
Dispatch from foreign news agency detection module, for the dispatch from foreign news agency based on the electrical network detection module detection high-power type elevator access in elevator whether just
Often, described high-power type elevator rated power is in more than 40kW；
Emergency flight control module, for when detecting that dispatch from foreign news agency is abnormal, after the catalyst on disconnecting external power grid, using stand-by power supply
High-power type elevator is powered, wherein：
Described stand-by power supply adopts low tension battery group, within described low tension battery group voltage is 100V；Described automatic help controls
Module, during elevator is powered, controls stand-by power supply to complete by three-phase six brachium pontis alternation parallel DC/DC boost module
Boosting is processed；Electric current after boosting is processed and voltage output are to inversion module.
8. automatic rescue device for elevator as claimed in claim 7 is it is characterised in that described automatic help control module is in power supply
During, using outer voltage, current inner loop, constant voltage and current limiting mode controls boosting to process.
9. automatic rescue device for elevator as claimed in claim 8 is it is characterised in that described automatic help control module includes：
Voltage output sampling module, for sampling and outputting voltage value；
Electric current exports sampling module, for sampled output current value；
Voltage loop module, for comparing with reference voltage by output voltage values, and passes through the first pi regulator, produces output electricity
Stream reference value；
Current limliting module, for judging whether described current reference value is more than current upper limit value, if described current reference value is more than upper
During limit value, it is as comparing output result using described current upper limit value, if during the non-higher limit of described current reference value, with electric current ginseng
Examine value conduct and compare output result；
Electric current loop module, for comparing based on the output current value comparing output result with sample and passing through the second pi regulator to produce
Raw PWM reference value；
PWM module, for the control letter being decoupled into according to PWM reference value in three-phase six brachium pontis alternation parallel DC/DC boost module
Number.
10. automatic rescue device for elevator as claimed in claim 9 is it is characterised in that described automatic help control module is also wrapped
Include：
Voltage input sample module, for sample input voltage values；
Electric current input sample module, for input current value of sampling；
Input power module, completes input power for the input voltage value based on sampling and input current value and calculates；
Battery power discharge management module, completes battery power discharge pipe for the input voltage value based on sampling and input current value
Reason, the estimation of set of cells total electricity；
Output module, completes output for the output voltage values based on sampling and output current value and calculates；
Efficiency calculation module, for completing efficiency calculation based on input power and output.
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| CN112850407B (en) * | 2021-01-25 | 2023-01-06 | 广东寰宇电子科技股份有限公司 | Method and system for controlling elevator car to move under emergency condition of elevator |
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