CN208723616U - Emergency power supply unit and energy-feedback elevator applied to energy-feedback elevator - Google Patents
Emergency power supply unit and energy-feedback elevator applied to energy-feedback elevator Download PDFInfo
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- CN208723616U CN208723616U CN201821192392.6U CN201821192392U CN208723616U CN 208723616 U CN208723616 U CN 208723616U CN 201821192392 U CN201821192392 U CN 201821192392U CN 208723616 U CN208723616 U CN 208723616U
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
The utility model embodiment discloses a kind of emergency power supply unit applied to energy-feedback elevator and energy-feedback elevator, emergency power supply unit access uses in energy-feedback elevator as backup power supply, it include: the inverter module that backup battery exchange with the energy for being stored backup battery electricity output, the alternating current of the inverter module output is identical as mains frequency used in the elevator frequency converter in energy-feedback elevator and voltage range.In the utility model embodiment, the renewable sources of energy that elevator generates can rationally be utilized under the mode for not changing elevator frequency converter structure, to reduce the design requirement of elevator frequency converter, reduce the energy requirement of power failure emergency power supply, reduce cost.
Description
Technical field
The utility model relates to elevator technology field more particularly to a kind of emergency power supplies applied to energy-feedback elevator
Device and energy-feedback elevator.
Background technique
With the development of actuation techniques, emergency operating of the elevator after power failure becomes simple, it is only necessary to provide power to electricity
The control system of ladder, the frequency converter of elevator can control lift car to underloading, the operation of laborsaving direction low speed under low voltage situations.
Emergency operating of the elevator after power failure can be can be realized using low power emergency power supply.Reduce elevator rescue apparatus during stoppage of power supply
Power demand.With the development of technology and the development of permanent magnet synchronous motor, energy-feedback elevator can be in Elevator power generation shapes
State because the electricity that potential variation generates feeds back to external power grid, achievees the purpose that more elevators energy saving.Fig. 1 shows existing
The schematic illustration of energy-feedback lift appliance in technology is carried out between power supply and motor using energy back frequency converter
Power supply control, energy back frequency converter generally form main loop of power circuit by controllable rectifier module, drive module to realize elevator
Energy is fed back to external power grid when driving and Elevator power generation.
If the power supply that the elevator of the type after mains failure, is issued by elevator potential energy is because isolated island reason can not feedback
To power grid, then need to handle energy regeneration of the elevator under generating state after power failure in mating emergency power supply, it is mating common
The existing technical solution of emergency power supply is generally using increase discharge cell, increase electric discharge electricity on the DC bus of elevator frequency converter
Resistance is to consume the energy generated under Elevator power generation state.I.e. in the frequency changer of energy-feedback elevator is as shown in Fig. 1,
Since common emergency power supply unit can not consume the renewable sources of energy that energy-feedback elevator frequency converter generates, in mains isolation
These alternating currents can not be fed back in utility grid afterwards, and the generated renewable sources of energy can be in the DC bus of elevator frequency converter
Accumulation just needs to increase electrion resistance R0 and electric discharge on the DC bus of frequency converter when using common emergency power supply
Power tube V10 is controlled, preventing the renewable sources of energy from going on emergency power supply unit can not consume, and cause DC bus power supply excessively high, damage
Bad driving part, i.e., tank capacitance shown in FIG. 1, IGBT etc..
Fig. 2 is another structural schematic diagram of emergency mode of energy-feedback elevator in the prior art, which needs
Power supply is separately provided to control power supply, the band-type brake of elevator, access DC power supply and discharge resistance in the input terminal of frequency converter.When
When elevator needs electric operation, battery shown in Fig. 2 is female to the direct current of frequency converter by the diode of Q1 and the diode of Q6
Line power supply, driving motor operation, when elevator is in generating state, DC bus-bar voltage passes through the IGBT of Q2 and is increased after increasing
The resistance R1 release renewable sources of energy added.The method also needs to modify transducer drive mode of elevator under the conditions of emergency operating.
It can be seen that mating common emergency power supply then needs to change the existing structure of elevator, the design of frequency converter is modified,
Difficulty is increased to elevator frequency converter, the cost for increasing discharge cell is also relatively high.Emergency operating is done after power failure then to need to increase
IGBT, the discharge resistance for placing electric unit are having power failure emergency operation function to need to change with the case where uninterrupted operation function
The hardware design of elevator frequency converter causes the consistency of lift product not high, difficult in maintenance.Emergency operating of the elevator after power failure
On the one hand emergency power supply is needed to provide control power supply to elevator, the renewable sources of energy that when one side energy back issues need all to disappear
It consumes on resistance, the utilization rate of the renewable sources of energy is not high.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, the utility model provides a kind of applied to energy
The emergency power supply unit and energy-feedback elevator of feedback-type elevator only need accordingly to be set for emergency elevator device
It sets, haves no need to change elevator frequency converter structure, emergency power supply unit can be made to be directly connected to realize elevator on elevator frequency converter
Emergency plan.
To solve the above-mentioned problems, the utility model proposes a kind of emergency power supply dresses applied to energy-feedback elevator
Set, emergency power supply unit access uses in energy-feedback elevator as backup power supply, comprising: backup battery and will after
The energy that standby battery is stored carries out the inverter module of exchange electricity output, the alternating current and energy back of the inverter module output
Mains frequency used in elevator frequency converter in type elevator is identical with voltage range.
The emergency power supply unit further includes voltage detecting and controling circuit, and the voltage detecting and controling circuit is in emergency power supply
When device is energy-feedback elevator supply, the voltage shape on the acted on emergency power supply unit of energy-feedback elevator is detected
State, the test side of the voltage detecting and controling circuit are connected with the output end of inverter module.
The output end of the voltage detecting and controling circuit is connected with discharge loop, and/or DC charging module, the direct current
Charging module accesses in backup battery.
The backup battery is lead-acid accumulator or is lithium battery or is super capacitance cell.
The discharge loop includes discharge resistance and discharge power pipe.
The emergency power supply unit includes a rectification module, the input terminal of the rectification module and the output end of inverter module
It is connected.
It include a two-way DC converting module between the inverter module and backup battery.
Correspondingly, the utility model also proposed a kind of energy-feedback elevator, including elevator frequency converter, elevator motor,
Elevator control system and band-type brake, the energy-feedback elevator further include and emergency power supply unit described in any of the above embodiments,
Power grid detection module, major loop isolation module, emergency power supply export conversion module；The energy-feedback elevator is normal in alternating current
Lower access alternating current is powered to elevator device, and emergency power supply unit is accessed under alternating current abnormal conditions and is powered to elevator device.
In the utility model embodiment, elevator can be generated again under the mode for not changing elevator frequency converter structure
Raw Utilizing Energy Sources in Reason reduces the energy requirement of power failure emergency power supply to reduce the design requirement of elevator frequency converter, reduce at
This.Realize that exported power supply is consistent with the characteristic of alternating current based on emergency power supply unit, elevator can by dispatch from foreign news agency it is normal when
Mode run.Power grid detection module needs to monitor, identifies dispatch from foreign news agency network source, after dispatch from foreign news agency power failure, by emergency power supply unit
Inverter module output power supply it is identical with mains frequency, phase, amplitude range, one when the operational mode of elevator is normal with alternating current
It causes, driving motor operation；Elevator is controlled by communication module and enters emergency operating mode, is run to underloading, power generation direction；Elevator
Renewable sources of energy a part of sending is elevator interior uses, a part is by recharging backup power supply and backup power supply can not
It is consumed after recycling by discharge loop.When under alternating current supply model, the renewable sources of energy caused by energy-feedback elevator are straight
It is reversed to be fed on external power grid, the generated renewable sources of energy can how many in energy-feedback elevator using be can not be specific
Quantization, and the emergency power supply unit involved in the utility model under emergency rating supply of electrical energy to energy-feedback elevator
When, the renewable sources of energy can partly or completely digest in elevator device, be that can dissolve the renewable sources of energy with Specific amounts directly to answer
In elevator device for energy-feedback elevator, the energy supply to emergency power supply unit also may be implemented, due to regeneration
The energy can directly realize energy resource supply in elevator device, and the energy content of battery of digestion is come than the conventional means in background technique
It says, the energy content of battery consumption of storage is less.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure principle chart of the emergency operating of energy-feedback elevator in the prior art；
Fig. 2 is another emergency operating structure principle chart of energy-feedback elevator in the prior art；
Fig. 3 is the structure principle chart of the energy-feedback elevator in the utility model embodiment；
Fig. 4 is in the utility model embodiment based on the energy resource supply schematic illustration under energy-feedback elevator；
Fig. 5 is in the utility model embodiment based on another principle signal of energy resource supply under energy-feedback elevator
Figure；
Fig. 6 is another schematic illustration of energy resource supply under the bidirectional, dc conversion module in the utility model embodiment；
Fig. 7 is the method flow that emergency power supply unit is powered under the energy-feedback elevator in the utility model embodiment
Figure.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It is applied to the emergency power supply unit of energy-feedback elevator involved in the utility model embodiment, it is described to answer urgent telegram
Source device access uses in energy-feedback elevator as backup power supply, comprising: backup battery and is stored backup battery
The energy carry out the inverter module of exchange electricity output, the alternating current and the electricity in energy-feedback elevator of inverter module output
Mains frequency used in terraced frequency converter is identical with voltage range.
Energy-feedback elevator, including elevator frequency converter, elevator motor, elevator are answered involved in the utility model embodiment
Control system and band-type brake, the energy-feedback elevator further include emergency power supply unit, power grid detection module, major loop isolation mode
Block, emergency power supply export conversion module, and the emergency power supply unit access makes in energy-feedback elevator as backup power supply
With, comprising: backup battery exchange with the energy for being stored backup battery the inverter module of electricity output, the inverter module
The alternating current of output is identical as mains frequency used in the elevator frequency converter in energy-feedback elevator and voltage range.The energy
Normally lower access alternating current is to elevator and motor, elevator control system and band-type brake power supply in alternating current for feedback-type elevator, in city's electrical anomaly
In the case of access emergency power supply unit to elevator motor, elevator control system and band-type brake power.
Based on the above principles, the renewable sources of energy generated elevator under the mode for not changing elevator frequency converter structure are rationally sharp
With to reduce the design requirement of elevator frequency converter, the energy requirement of reduction power failure emergency power supply reduces cost.This is practical new
The power supply that emergency power supply unit involved in type is exported is consistent with the characteristic of alternating current, elevator can by dispatch from foreign news agency it is normal when
Mode is run.Power grid detection module needs to monitor, identifies dispatch from foreign news agency network source, after dispatch from foreign news agency power failure, by emergency power supply unit
The power supply of inverter module output is identical as mains frequency, phase, amplitude range, one when the operational mode and alternating current of elevator are normal
It causes, driving motor operation；Elevator is controlled by communication module and enters emergency operating mode, is run to underloading, power generation direction；Elevator
Renewable sources of energy a part of sending is elevator interior uses, a part is by recharging backup power supply and backup power supply can not
It is consumed after recycling by discharge loop.
Specifically, Fig. 3 shows the structure principle chart of the energy-feedback elevator in the utility model embodiment, elevator system
System is energy-feedback elevator device, includes elevator frequency converter, elevator motor, elevator control system and band-type brake etc., if
It is not related in the case of emergency power supply unit, elevator frequency converter is directly accessed by alternating current and provides driving power to elevator motor, it is real
Each function element normal power supply operating of existing elevator motor.Based on purpose involved in the utility model, it is not directed to elevator variable frequency
The transformation of device structure, for existing elevator frequency converter structure, the utility model embodiment is transformed in energy-feedback elevator
Emergency power supply unit and related ancillary equipment structural relation, energy-feedback elevator further include: power grid detection module, charging valve
Manage module, backup battery, inverter module, DC charging module, voltage detecting and controling circuit, rectification module, emergency power supply output
Conversion module, major loop isolation module etc., in which:
Elevator device energy-feedback elevator involved in the utility model embodiment can by alternating current supply of electrical energy,
Can be by emergency power supply unit supply of electrical energy, in the case where alternating current supply of electrical energy, alternating current is supplied to each function of elevator device
In module, the normal operation of elevator device is realized；In the case where emergency power supply unit supply of electrical energy, by emergency power supply unit
Inverter module output alternating current to elevator frequency converter carry out conversion output in each functional module of elevator device, realize elevator
The normal operation under emergency rating of system；
Alternating current, that is, industrial-frequency alternating current (AC) involved in the utility model embodiment commonly uses three amounts with alternating current come table
Sign: voltage, electric current, frequency are typically led to three-phase 380V for elevator device, and for the alternating current of 50HZ as power supply, alternating current uses phase
The power input mode answered, which is input on each device of elevator device, meets corresponding energy supply；
Power grid detection module is used to detect the electric network state on energy-feedback elevator, that is, detects the characteristic and monitoring of alternating current
Whether the state of alternating current, such as alternating current have a power failure, are abnormal etc., trigger and change to emergency rating, is i.e. power grid detection module detects city
When electricity has a power failure or is abnormal, emergency flight control signal is triggered, mains terminal is isolated by major loop isolation module, starts emergency power supply unit
Supply of electrical energy is to elevator device；After the completion of emergency operating and alternating current under normal circumstances, mains terminal is connected by major loop isolation module
To elevator device, by alternating current supply of electrical energy to elevator device；
Charge management module is used to the state of backup battery being sent to elevator device or the by corresponding communication module
Tripartite's managing and control system, to understand backup battery charge condition；Backup battery can be lead acid storage battery for storing electric energy
Pond or lithium battery or for the compound backup battery such as super capacitance cell, the electric energy stored is used in emergency rating
It is down elevator device supply of electrical energy；
Inverter module is used for after municipal power failure, and the electric energy in backup battery is converted into exchange electricity output, the inversion mould
The alternating current of block output is identical as mains frequency used in the elevator frequency converter in energy-feedback elevator and voltage range；
Emergency power supply exports conversion module for when alternating current supply of electrical energy is to elevator device, isolation emergency power supply unit to be defeated
Electric energy forms a power path under emergency rating, inverter module is formed by exchange electricity output extremely to elevator device out
Elevator device；
Major loop isolation module is used for when alternating current supply of electrical energy is to elevator device, a power path is formed, by alternating current
Alternating current is isolated to elevator device to elevator device in output under emergency rating；
Rectification module rectifies the renewable sources of energy that the alternating current that inverter exports and elevator device are fed back, due to
What inverter module was exported is the alternating current under normal alternating current, and elevator device goes out by the carried out energy back of elevator frequency converter
The renewable sources of energy are also the alternating current of same-phase same frequency, and elevator device carries out that entirety can be raised when energy back under emergency rating
Effective amplitude of alternating voltage can obtain the voltage of direct current by rectification module here, should under energy back continued case
After D. C. value increases, the utilization again and consumption to the renewable sources of energy can be realized detected by voltage detecting and controling circuit；
Which is connected rectification modules for voltage detecting and controling circuit, for detecting the direct current state of value on rectification module, i.e., electric
When emergency power supply unit is energy-feedback elevator supply, detection energy-feedback elevator is acted on pressure detection control circuit
The test side of voltage status on emergency power supply unit, the voltage detecting and controling circuit is connected with rectification module；Voltage detecting
Control module starts connected DC charging module to standby electricity when detecting that voltage status is greater than preset first threshold
Pond charging, to consume the extra renewable sources of energy, when detecting that voltage status is greater than preset second threshold, starting is connected
Discharge loop the extra renewable sources of energy are consumed.Here setting value is carried out according to the direct current state of value on rectification module
Setting, it can refer to as follows: the D. C. value one i.e. when standard output stablizes the voltage in AC380, on rectification module
As be DC540V, a certain value when more than DV540V is set as first threshold (for example setting DC620V as first threshold), Yi Ji
Two threshold values (second threshold here is generally higher than first threshold, second threshold 680V)；
DC charging module is used to charge under the control of voltage detecting and controling circuit to backup battery；
Discharge loop is for consuming the extra renewable sources of energy under the control of voltage detecting and controling circuit, discharge loop
Including discharge resistance, discharge power pipe etc..
Fig. 4 is shown in the utility model embodiment based on the energy resource supply schematic illustration under energy-feedback elevator,
That is technical solution involved in the utility model haves no need to change the structure of elevator frequency converter, in alternating current supply, alternating current
Electric energy supply is carried out to elevator frequency converter, elevator motor, elevator control system, band-type brake etc.；Here K1 (i.e. major loop isolation mode
Block), K2 (i.e. emergency power supply output conversion module) etc. be controlled by the control of energy-feedback elevator, or by emergency power supply unit
It completes to control accordingly, i.e., energy-feedback elevator or emergency power supply unit are based on the detection of power grid detection module, monitoring city
Electric input state closes the switch to control K1, K2, alternating current normally input (i.e. alternating current be normally able to satisfy energy-feedback elevator fortune
Row), alternating current forms a power input channel by K1 to elevator frequency converter, and K2 disconnects the electricity in isolation emergency power supply unit
Source enters in elevator frequency converter；When city's electrical anomaly, the electric energy in emergency power supply unit forms one by K2 to elevator frequency converter
A power input channel, and K1 disconnects isolation alternating current and enters in elevator frequency converter, avoids mains terminal from forming elevator device dry
Disturb effect.Entire alternating current is detected the state of mains terminal to the switching control of emergency power supply unit by power grid detection module first
And trigger, K1, K2 are controlled by emergency power supply unit system to form corresponding energy resource supply channel.
When supplying power supply to elevator device by emergency power supply unit, DC/AC, that is, inverter module output and city's electrical characteristics phase
Same power supply, the renewable sources of energy E0 gone out from elevator motor institute's feedback may be implemented electricity through elevator frequency converter and feed back to emergency power supply dress
It sets in elevator device, i.e. E0 caused by elevator motor can enter elevator system by the elevator frequency converter partial regeneration energy
On elevator control system and band-type brake in system, i.e. partial regeneration energy E1 in E0 is entered in elevator control system and band-type brake,
Electric energy, which is carried out, for elevator control system and band-type brake uses consumption.In the case that the renewable sources of energy caused by E0 are smaller, regeneration
The consumption of the energy, which uses, only to be needed to supply use on elevator device.
Voltage detecting and controling circuit involved in this embodiment is energy-feedback elevator supply in emergency power supply unit
When, detect the voltage status on the acted on emergency power supply unit of energy-feedback elevator, it can detect rectification shown in Fig. 4
DC voltage value in module is detected, if the D. C. value on rectification module is greater than preset first threshold, can be passed through
DC/DC, that is, DC charging module enters partial regeneration energy E2 in the battery of emergency power supply to charge, to consume E0
In the extra renewable sources of energy.If the D. C. value on rectification module is greater than preset second threshold, can be disappeared by discharge loop
Consume renewable sources of energy E3.Here DC/DC module, can not in the case where efficiency requirements are not high back to the circuit of emergency cell
It needs, then emergency power supply unit needs to increase discharge resistance and the power of control of discharge pipe needs to be greater than E2+E3, entire energy
Amount consumption is similarly less than E0.
Fig. 5 is shown in the utility model embodiment based on another principle signal of energy resource supply under energy-feedback elevator
Figure, i.e. technical solution involved in the utility model, have no need to change the structure of elevator frequency converter, in alternating current supply,
City supplies electricity to elevator frequency converter, elevator motor, elevator control system, band-type brake etc. and carries out electric energy supply；Here K1 (i.e. major loop every
From module), K2 (i.e. emergency power supply output conversion module) etc. be controlled by the elevator control system in energy type feedback elevator, that is, exist
The detection of power grid detection module, monitoring alternating current input state close the switch to control K1, K2, and alternating current normally inputs that (i.e. alternating current is normal
It is able to satisfy the operation of energy-feedback elevator), alternating current forms a power input channel by K1 to elevator frequency converter, and K2 is disconnected
The power supply opened in isolation emergency power supply unit enters in elevator frequency converter；Electric energy when city's electrical anomaly, in emergency power supply unit
A power input channel is formed by K2 to elevator frequency converter, and K1 disconnects isolation alternating current and enters in elevator frequency converter, keeps away
Exempt from mains terminal and disturbing effect is formed to elevator device.Entire alternating current is examined by power grid first to the switching control of emergency power supply unit
It surveys module to trigger detecting the state of mains terminal, controls K1, K2 by entire elevator device to form corresponding energy resource supply
Channel.
When supplying power supply to elevator device by emergency power supply unit, DC/AC, that is, inverter module output and city's electrical characteristics phase
Same power supply, the renewable sources of energy E0 gone out from elevator motor institute's feedback may be implemented electricity through elevator frequency converter and feed back to emergency power supply dress
It sets in elevator device, i.e. E0 caused by elevator motor can enter elevator system by the elevator frequency converter partial regeneration energy
On elevator control system and band-type brake in system, i.e. partial regeneration energy E1 in E0 is entered in elevator control system and band-type brake,
Electric energy, which is carried out, for elevator control system and band-type brake uses consumption.In the case that the renewable sources of energy caused by E0 are smaller, regeneration
The consumption of the energy, which uses, only to be needed to supply use on elevator device.
Fig. 5 and DC/DC module shown in fig. 6 are designed using bidirectional, dc conversion module, and the DC/DC module is in motoring condition
Lower to provide battery to the energy to inverter module, generating state charges to battery, then reduces the route of rectifying part, and elevator generates
The renewable sources of energy can be charged by two-way DC/DC into emergency cell, partially need to consume by discharge loop.Consume energy
Discharge loop may be coupled to the high-voltage end or low-pressure end of two-way DC/DC module, then subtracted using two-way DC/DC converter technique
Additional rectification module is lacked, the discharge loop of same available low-power consumption realizes the emergency operating of elevator.It is involved in the present embodiment
And voltage detecting and controling circuit emergency power supply unit be energy-feedback elevator supply when, detect energy-feedback elevator institute
The voltage status on emergency power supply unit is acted on, i.e., is detected for the DC voltage value in DC/DC module, if DC/DC
D. C. value in module is greater than preset first threshold, and partial regeneration energy E2 can be made to enter by DC/DC module and answered
Urgent telegram is charged in pond, to consume the renewable sources of energy extra in E0.If D. C. value in DC/DC module is greater than preset the
Two threshold values can consume renewable sources of energy E3 by discharge loop.Here DC/DC module back to emergency cell circuit,
It can not needed in the case where efficiency requirements are not high, then emergency power supply unit needs to increase discharge resistance and control of discharge pipe
Power needs to be greater than E2+E3, and entire energy consumption is similarly less than E0.
It can be seen that by the same alternating current of power grid characteristic that emergency power supply unit is exported, elevator is not required in emergency operating
Consider that the generated renewable sources of energy can not discharge under generating state, the generated renewable sources of energy can feed back emergency power supply
It uses, be even consumed as the energy in device and elevator device, without changing elevator frequency converter structure.When elevator is raw
When the generated feedback of ENERGY E 0 arrives emergency power supply when power generation, a part of power supply can be supplied to needed for elevator device oneself work
The energy E1 wanted is used on elevator control system and band-type brake, the part energy E2 having more can by DC/DC module back to
The battery of emergency power supply charges, and two parts are unable to the renewable sources of energy E3 run out of again by the dead resistance on emergency power supply
To consume extra energy.It compares in the prior art, also reduces the energy requirements of discharge loop, using common emergency power supply
Required increased discharge resistance R0, V10 have to be larger than the ENERGY E 0 that can consume Elevator power generation generation, increase inside emergency power supply
The discharge resistance and discharge power pipe added then only needs that ENERGY E 3 can be consumed.Because the electricity that elevator generates under generating state can return
It fills and is stored to emergency cell, reduce the energy demand of emergency power supply, reduce the standby energy cost of emergency cell.
Based on hardware principle possessed by the utility model embodiment, one kind being realized based on the energy-feedback elevator
The method of elevator emergency means of power, which includes emergency power supply unit and elevator frequency converter, this is answered
Urgent telegram source device includes backup battery and inverter module, and method includes: the energy turn that inverter module is stored backup battery
It changes exchange electricity output into be powered into elevator device, in the alternating current and energy-feedback elevator of the inverter module output
Elevator frequency converter used in mains frequency it is identical with voltage range.Further, this method further includes: being based on voltage detecting control
Voltage status on circuit detection the acted on emergency power supply unit of energy-feedback elevator processed, and energy is controlled based on voltage status
It measures the renewable sources of energy caused by feedback-type elevator to charge to backup battery, and/or control discharge loop disappears to the renewable sources of energy
Consumption.
It powers specifically, Fig. 7 shows emergency power supply unit under the energy-feedback elevator in the utility model embodiment
Method flow diagram, specifically comprise the following steps:
In S601, the elevator device by alternating current normal supply electric energy to energy-feedback elevator；
Based on Fig. 3 to energy-feedback elevator shown in fig. 6, alternating current supply of electrical energy can be used or used and answered
Urgent telegram source device supply of electrical energy, in the case where alternating current supply of electrical energy, by each functional module of alternating current supply elevator device, including
Elevator frequency converter, elevator motor, band-type brake, elevator control system etc. realize the normal operation of elevator device；It is filled in emergency power supply
In the case where setting supply of electrical energy, convert by inverter module output alternating current to the elevator frequency converter in emergency power supply unit defeated
Out in each functional module of elevator device, the normal operation under emergency rating of elevator device is realized.
Whether S602, power grid detection module detect mains-supplied exception, enter if detecting that mains-supplied is abnormal
S603 needs to continue S602 if mains-supplied is normal；
In specific implementation process, power grid detection module detects the electric network state on energy-feedback elevator, i.e. detection alternating current
Characteristic and monitoring alternating current state, for example whether alternating current have a power failure, be abnormal etc., triggers and changes to emergency rating, i.e., power grid detects
When module detects mains failure or exception, emergency flight control signal is triggered, mains terminal, starting are isolated by major loop isolation module
Emergency power supply unit supply of electrical energy is to elevator device；Completed in emergency operating and detect that dispatch from foreign news agency restores normal, by major loop every
From module connection mains terminal to elevator device, by civil power module supply of electrical energy to elevator device.
S603, starting elevator device enter emergency operating mode；
In specific implementation process, after starting elevator device enters contingency mode, alternating current is isolated to electricity in major loop isolation module
The channel of terraced system, emergency power supply unit export electric energy to elevator device, and emergency power supply exports conversion module under emergency rating
The power path by inverter module to elevator frequency converter is formed, inverter module is formed by exchange electricity output to elevator device.
The energy conversion that S604, inverter module are stored backup battery is exported at alternating current to be supplied into elevator device
Electricity；
Inverter module is used for after municipal power failure, and the electric energy in backup battery is converted into exchange electricity output, the inversion mould
The alternating current of block output is identical as the mains frequency and voltage range that the elevator frequency converter in energy-feedback elevator leads to.
S605, the electricity on the acted on emergency power supply unit of energy-feedback elevator is detected based on voltage detecting and controling circuit
Pressure condition；
In specific implementation process, Regenerated energy that rectification module is fed back the alternating current that inverter exports and elevator device
Source is rectified, and what is exported by inverter module is alternating current under normal alternating current, and elevator device passes through elevator frequency converter institute
The alternating current that the renewable sources of energy that energy back goes out are also same-phase same frequency is carried out, elevator device carries out energy under emergency rating
Effective amplitude of whole alternating voltage can be raised when feedback, can obtain the voltage of direct current, energy by rectification module here
It feeds back under continued case, after which increases, can realize detected by voltage detecting and controling circuit to the renewable sources of energy
Utilization again and consumption.The bidirectional, dc between inverter module and backup battery can also be detected based on voltage detecting and controling circuit
Voltage status on conversion module realizes (circuit diagram as shown in Figure 5 and Figure 6).
S606, it detects whether voltage status is greater than preset first threshold, then enters step if more than first threshold
In S607 and 608, otherwise continue S606；
S607, starting DC charging module charge to backup battery；
S608, it detects whether voltage status is greater than preset second threshold, then enters S609 if more than second threshold, it is no
Then continue S608；
S609, star t-up discharge circuit consume the extra renewable sources of energy.
In specific implementation process, voltage detecting and controling circuit can detecte the direct current state of value or two-way on rectification module
Voltage status in DC converting module, i.e. voltage detecting and controling circuit are energy-feedback elevator supply in emergency power supply unit
When, detect the voltage status on the acted on emergency power supply unit of energy-feedback elevator, the inspection of the voltage detecting and controling circuit
End is surveyed to be connected with rectification module；Voltage detection control module is opened when detecting that voltage status is greater than preset first threshold
Dynamic connected DC charging module charges to backup battery, to consume the extra renewable sources of energy, is detecting voltage status
When greater than preset second threshold, starts connected discharge loop and consume the extra renewable sources of energy.
Based on the above method, the renewable sources of energy that can be generated elevator under the mode for not changing elevator frequency converter structure are closed
Reason utilizes, to reduce the design requirement of elevator frequency converter, reduces the energy requirement of power failure emergency power supply, reduces cost.It is based on
Emergency power supply unit realizes that exported power supply is consistent with the characteristic of alternating current, elevator can by when dispatch from foreign news agency is normal in the way of transport
Row.Power grid detection module needs to monitor, identifies dispatch from foreign news agency network source, after dispatch from foreign news agency power failure, by the inversion mould in emergency power supply unit
The power supply of block output is identical with mains frequency, phase, amplitude range, and when operational mode and normal alternating current of elevator is consistent, drives
Motor operation；Elevator is controlled by communication module and enters emergency operating mode, is run to underloading, power generation direction；What elevator issued
Renewable sources of energy a part uses in elevator interior, a part is by recharging backup power supply and after backup power supply can not recycle
It is consumed by discharge loop.When under alternating current supply model, the renewable sources of energy caused by energy-feedback elevator are directly to feed back
Arrived on external power grid, the generated renewable sources of energy can how many in energy-feedback elevator using being specifically to quantify
, and the emergency power supply unit involved in the utility model is under emergency rating when supply of electrical energy to energy-feedback elevator,
Its renewable sources of energy can partly or completely digest in elevator device, be that can dissolve the renewable sources of energy with Specific amounts to directly apply to
In the elevator device of energy-feedback elevator, the energy supply to emergency power supply unit also may be implemented, due to the renewable sources of energy
Can directly realize energy resource supply in elevator device, the energy content of battery of digestion than the conventional means in background technique for,
Its energy content of battery stored consumption is less.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: read-only memory (ROM, ReadOnly Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
In addition, above to the emergency power supply unit for being applied to energy-feedback elevator provided by the utility model embodiment
It is described in detail with energy-feedback elevator, specific case used herein is to the principles of the present invention and embodiment party
Formula is expounded, the method and its core concept of the above embodiments are only used to help understand the utility model；Together
When, for those of ordinary skill in the art, based on the idea of the present invention, in specific embodiments and applications
It will change, in conclusion the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. a kind of emergency power supply unit applied to energy-feedback elevator, which is characterized in that the emergency power supply unit access
It is used in energy-feedback elevator as backup power supply, comprising: backup battery and the energy for being stored backup battery carry out
Exchange the inverter module of electricity output, the alternating current of the inverter module output and the elevator frequency converter institute in energy-feedback elevator
Mains frequency is identical with voltage range.
2. being applied to the emergency power supply unit of energy-feedback elevator as described in claim 1, which is characterized in that the emergency
Power supply device further includes voltage detecting and controling circuit, and the voltage detecting and controling circuit is energy-feedback in emergency power supply unit
When elevator supply, the voltage status on the acted on emergency power supply unit of energy-feedback elevator, the voltage detecting control are detected
The test side of circuit processed is connected with the output end of inverter module.
3. being applied to the emergency power supply unit of energy-feedback elevator as claimed in claim 2, which is characterized in that the voltage
The output end of detection control circuit is connected with discharge loop, and/or DC charging module, after the DC charging module accesses to
In standby battery.
4. being applied to the emergency power supply unit of energy-feedback elevator as described in claim 1, which is characterized in that the standby
Battery is lead-acid accumulator or is lithium battery or is super capacitance cell.
5. being applied to the emergency power supply unit of energy-feedback elevator as claimed in claim 3, which is characterized in that the electric discharge
Circuit includes discharge resistance and discharge power pipe.
6. such as the emergency power supply unit described in any one of claim 1 to 5 applied to energy-feedback elevator, feature exists
In the emergency power supply unit includes a rectification module, and the input terminal of the rectification module is connected with the output end of inverter module
It connects.
7. such as the emergency power supply unit described in any one of claim 1 to 5 applied to energy-feedback elevator, feature exists
In including a two-way DC converting module between the inverter module and backup battery.
8. a kind of energy-feedback elevator, which is characterized in that including elevator frequency converter, elevator motor, elevator control system and embrace
Lock, the energy-feedback elevator further includes and emergency power supply unit as described in any one of claim 1 to 7, power grid are examined
It surveys module, major loop isolation module, emergency power supply and exports conversion module；The energy-feedback elevator is in alternating current normally lower access
Alternating current is powered to elevator device, and emergency power supply unit is accessed under alternating current abnormal conditions and is powered to elevator device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192392.6U CN208723616U (en) | 2018-07-25 | 2018-07-25 | Emergency power supply unit and energy-feedback elevator applied to energy-feedback elevator |
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| CN201821192392.6U CN208723616U (en) | 2018-07-25 | 2018-07-25 | Emergency power supply unit and energy-feedback elevator applied to energy-feedback elevator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988477A (en) * | 2018-07-25 | 2018-12-11 | 广东寰宇电子科技股份有限公司 | The method and device and elevator that emergency power supply unit is powered under energy-feedback elevator |
| CN114123271A (en) * | 2021-10-29 | 2022-03-01 | 日立电梯（中国）有限公司 | Elevator control system |
-
2018
- 2018-07-25 CN CN201821192392.6U patent/CN208723616U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108988477A (en) * | 2018-07-25 | 2018-12-11 | 广东寰宇电子科技股份有限公司 | The method and device and elevator that emergency power supply unit is powered under energy-feedback elevator |
| CN108988477B (en) * | 2018-07-25 | 2024-09-13 | 广东寰宇电子科技股份有限公司 | Method and device for supplying power to emergency power supply device under energy feedback type elevator and elevator |
| CN114123271A (en) * | 2021-10-29 | 2022-03-01 | 日立电梯（中国）有限公司 | Elevator control system |
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