CN207069597U - A kind of intelligent multi-function electric power system, elevator and steel mill oxygen lance electric power system - Google Patents
A kind of intelligent multi-function electric power system, elevator and steel mill oxygen lance electric power system Download PDFInfo
- Publication number
- CN207069597U CN207069597U CN201721733151.3U CN201721733151U CN207069597U CN 207069597 U CN207069597 U CN 207069597U CN 201721733151 U CN201721733151 U CN 201721733151U CN 207069597 U CN207069597 U CN 207069597U
- Authority
- CN
- China
- Prior art keywords
- electric power
- power system
- igbt module
- way
- converters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of intelligent multi-function electric power system, elevator and steel mill oxygen lance electric power system, including governor circuit, two-way DC/DC converters and frequency converter, the governor circuit includes micro-control unit, the micro-control unit respectively with power DC bus voltage detection unit, cell voltage detection unit and the connection of battery charging and discharging current detecting unit, the power DC bus voltage detection unit is connected with the output end of two-way DC/DC converters, cell voltage detection unit and the battery charging and discharging current detecting unit is connected with the battery pack of two-way DC/DC converters, the two-way DC/DC converters are connected by the first IGBT module with frequency changer direct current bus.The utility model is by designing a governor circuit and a two-way DC/DC converter, so that elevator power supply possesses a variety of different mode of operations, the problems such as the reasonable utilization of energy regenerating, electric energy when preferably resolving the civil power transition of elevator, emergency service, braking.
Description
Technical field
The utility model is related to can present power supply field, be to be related to a kind of intelligent multi-function electric power system, electricity specifically
Ladder and steel mill oxygen lance electric power system.
Background technology
China's elevator usage is huge at present, with its operating mode similar in industrial equipment quantity it is quite a few, such as steel mill oxygen lance etc..
The contingency management of elevator and same category of device is also outstanding day by day with power saving.There are several protrusions to ask during this kind equipment use
Topic：First, civil power has an electricity, but stoppage protection problem caused by civil power transition；Second, emergency service problem during commercial power interruption；
Third, energy regenerating when elevator brake is run；Fourth, whetheing there is technical measures further reduces the cost of use of elevator.
Before the solution of above mentioned problem is illustrated, also firstly the need of two states existing for the operation of clear and definite elevator：One
It is running status, second, on-position.Wherein running status needs to consume energy.On-position is when personnel in elevator and balancing weight weight
When amount does not wait, because Action of Gravity Field causes elevator to be in generating state.Because there is frequency converter elevator motor front end, if these are sent out
The energy gone out directly feeds back to frequency converter, then frequency changer direct current bus voltage can be caused to raise, until the device of breakdown frequency converter
Frequency converter is caused to damage.Therefore there must be energy absorbing device.
For present problems conventional solution have it is following several：
1st, stoppage protection problem caused by falling to civil power moment：The measure taken at present is configuration UPS and worked in
Line model.Battery is hung on dc bus always during due to UPS on-line operation patterns, and instantaneous drop type battery occurs in voltage
Energy can get on without the supplement of any interruption, therefore reliability is very high.But the problem of bringing is exactly UPS on-line operations
Efficiency is about 90%, therefore has larger loss.Simultaneously as the extra charges such as configuration UPS also brings along place, personnel safeguard.
Emergency service problem when the 2nd, for commercial power interruption, two kinds of measures are typically taken at present.First, increase UPS/EPS
Power supply is as back-up source, and battery is configured then depending on elevator use environment situation.The problem of this scheme is present is investment
It is larger, and address only emergency service problem, it is impossible to solve the problems, such as brake working condition energy regenerating.
Second method is to use emergency flat layer device.The general principle of its work is similar with UPS.Only because emergent supply
Electricity is only needed to flat bed, so battery configures very little, generally 12AH8 is only.Although this scheme solves the problems, such as emergency flat layer, but
It is can not solve important events elevator to still need the long-time powerup issue of operation and asking for brake working condition energy regenerating
Topic.
3rd, for the on-position energy regenerating problem of elevator, also there are two kinds of solution methods at present.First, using special
Frequency converter brake module and supporting resistance fall energy expenditure.Second, directly energy is directly fed back in power network.This
If the problem of scheme is front-end configuration UPS or EPS power supply, during emergency service, energy can not discharge, it is also necessary to be further added by
Braking resistor or other modes solve.And due to electric energy directly is fed back into power network, it is necessary to quickly track civil power, in equipment
During failure itself, new powerup issue is easily caused.
4th, the cost of use of elevator is further reduced for whetheing there is technical measures, has no preferable solution at present.
Therefore for the power issue of existing elevator operation, above-mentioned solution all Shortcomings.
Utility model content
In order to solve the deficiencies in the prior art, the utility model provides a kind of intelligent multi-function electric power system, elevator
And steel mill oxygen lance electric power system, by designing a governor circuit and a two-way DC/DC converter so that elevator power supply has
Standby a variety of different mode of operations, energy regenerating, electricity when preferably resolving the civil power transition of elevator, emergency service, braking
The problems such as reasonable utilization of energy.
To achieve these goals, the technical solution of the utility model is as follows：
A kind of intelligent multi-function electric power system, including governor circuit, two-way DC/DC converters and frequency converter, the master
Control circuit includes micro-control unit, and the micro-control unit is examined with power DC bus voltage detection unit, cell voltage respectively
Survey unit and the connection of battery charging and discharging current detecting unit, the power DC bus voltage detection unit and two-way DC/DC
The output end connection of converter, cell voltage detection unit and the battery charging and discharging current detecting unit become with two-way DC/DC
The battery pack connection of parallel operation, the two-way DC/DC converters are connected by the first IGBT module with frequency changer direct current bus.
Further, the micro-control unit also with line voltage detection unit, frequency changer direct current bus voltage detecting list
Member connects with IGBT drive circuit.
Further, the mains electricity input end of the line voltage detection unit and frequency converter connects.
Further, the frequency changer direct current bus voltage detection unit is connected with frequency changer direct current bus.
Further, the two-way DC/DC converters include battery pack, inductance, the second IGBT module, the 3rd IGBT module
And electric capacity, the inductance are connected with battery anode, emitter stage, the colelctor electrode of the 3rd IGBT module of second IGBT module
It is connected with inductance, the colelctor electrode of second IGBT module is connected with the first IGBT module, the transmitting of the 3rd IGBT module
Pole is connected with battery electrode, and described electric capacity one end is connected with battery electrode, and the other end is connected with the first IGBT module.
Further, the IGBT drive circuit connects with the first IGBT module, the second IGBT module and the 3rd IGBT module
Connect.
Further, the model TMS320F2812 of the micro-control unit.
Further, the battery pack of the two-way DC/DC converters is lead-acid accumulator.
Further, the battery pack of the two-way DC/DC converters is also in parallel with DC/DC converters.
Further, the governor circuit is connected by main board power supply unit with DC/DC converters.
Further, the DC/DC converters are connected with 12/24V power supplys.
Compared with prior art, the beneficial effects of the utility model are：
(1) the utility model is controlled by governor circuit and two-way DC/DC converters to elevator power supply, for civil power
And elevator operating mode uses different mode of operations, while the elevator power supply possesses energy recovery function, preferably resolves elevator
Civil power transition, emergency service and braking when energy regenerating problem, there is good economic and social benefit.
(2) the utility model is taken in the case where battery configuration circle is between leveling device and the configuration of UPS/EPS batteries
Charge at night, daytime puts the power consumption of battery in the case of 70%, realizes the reasonable utilization of time-of-use tariffs, realizes saving expense
Purpose.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is power configuration UPS/EPS system diagram；
Fig. 2 is resistive braking schematic diagram；
Fig. 3 is Active braking schematic diagram；
Fig. 4 is the utility model elevator power supply schematic diagram；
Fig. 5 is the utility model governor circuit block diagram；
Fig. 6 is that the utility model brakes interruption subroutine figure；
Fig. 7 is the utility model paddy section charging subprogram block diagram.
Embodiment
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings.
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
In the utility model, term as " on ", " under ", "left", "right", "front", "rear", " vertical ", " level ",
The orientation or position relationship of the instructions such as " side ", " bottom " are based on orientation shown in the drawings or position relationship, only to facilitate chatting
The relative stated each part of the utility model or component structure relation and determined, not refer in particular in the utility model either component or
Element, it is impossible to be interpreted as to limitation of the present utility model.
In the utility model, term such as " affixed ", " connected ", " connection " should be interpreted broadly, and expression can be fixed
Connect or be integrally connected or be detachably connected；Can be joined directly together, the indirect phase of intermediary can also be passed through
Even.Related scientific research or technical staff for this area, it can determine above-mentioned term in the utility model as the case may be
Concrete meaning, it is impossible to be interpreted as to limitation of the present utility model.
As background technology is introduced, elevator caused stoppage protection in civil power transition in the prior art be present and ask
Topic, emergency service problem during commercial power interruption, energy regenerating during running under braking and the cost of use for further reducing elevator
The problem of, in order to solve technical problem as above, present applicant proposes a kind of intelligent multi-function electric power system, elevator and steel mill
Oxygen rifle electric power system, by designing a governor circuit and a two-way DC/DC converter so that elevator power supply possesses a variety of
Different mode of operations, the conjunction of energy regenerating, electric energy when preferably resolving the civil power transition of elevator, emergency service, braking
The problems such as reason utilizes.
The conventional solution of present problems has following several：
1st, stoppage protection problem caused by falling to civil power moment：The measure taken at present is configuration UPS and worked in
Line model.Battery is hung on dc bus always during due to UPS on-line operation patterns, and instantaneous drop type battery occurs in voltage
Energy can get on without the supplement of any interruption, therefore reliability is very high.Specific circuit theory is as shown in figure 1, still band
The problem of coming is exactly that the efficiency of UPS on-line operations is about 90%, therefore has larger loss.Simultaneously as configuration UPS also can band
Carry out the extra charges such as place, personnel's maintenance.
Emergency service problem when the 2nd, for commercial power interruption, two kinds of measures are typically taken at present.First, increase UPS/EPS
Power supply is as back-up source, and battery is configured then depending on elevator use environment situation.The problem of this scheme is present is investment
It is larger, and address only emergency service problem, it is impossible to solve the problems, such as brake working condition energy regenerating.
Second method is to use emergency flat layer device, and the general principle of its work is similar with UPS.Only because emergent supply
Electricity is only needed to flat bed, so battery configures very little, generally 12AH8 is only.Although this scheme solves the problems, such as emergency flat layer, but
It is can not solve important events elevator to still need the long-time powerup issue of operation and asking for brake working condition energy regenerating
Topic.
3rd, for the on-position energy regenerating problem of elevator, also there are two kinds of solution methods at present.First, using special
Frequency converter brake module and supporting resistance fall energy expenditure, and concrete principle is as shown in Figure 2.It is second, directly that energy is direct
Feed back in power network, concrete principle is as shown in Figure 3.If the problem of this scheme, is front-end configuration UPS or EPS power supply,
During emergency service, energy can not discharge, it is also necessary to be further added by braking resistor or other modes solve.And due to electric energy is straight
Take back and be fed to power network, it is necessary to quickly track civil power, in equipment failure itself, easily cause new powerup issue.
During using UPS/EPS, due to that can not be recovered energy in battery powered, therefore braking resistor can only be used, caused
The increase of investment and maintenance cost, while the reliability of equipment is also affected.
Therefore, as shown in Figure 4 and Figure 5, the utility model provides a kind of intelligent multi-function electric power system, including master control
Circuit, two-way DC/DC converters and frequency converter, the governor circuit include micro-control unit, the micro-control unit respectively with
Power DC bus voltage detection unit, cell voltage detection unit and the connection of battery charging and discharging current detecting unit, it is described
Power DC bus voltage detection unit is connected with the output end of two-way DC/DC converters, the cell voltage detection unit and
Battery charging and discharging current detecting unit is connected with the battery pack of two-way DC/DC converters, and the two-way DC/DC converters pass through
First IGBT module is connected with frequency changer direct current bus.
The micro-control unit also with line voltage detection unit, frequency changer direct current bus voltage detection unit and IGBT
Drive circuit connects.
The mains electricity input end of the line voltage detection unit and frequency converter connects.
The frequency changer direct current bus voltage detection unit is connected with frequency changer direct current bus.
The two-way DC/DC converters include battery pack, inductance L1, the second IGBT module, the 3rd IGBT modules and electric capacity
C2, the inductance L1 are connected with battery anode, the emitter stage of second IGBT module, the colelctor electrode of the 3rd IGBT module with
Inductance is connected, and the colelctor electrode of second IGBT module is connected with the first IGBT modules, the emitter stage of the 3rd IGBT module
It is connected with battery electrode, described electric capacity C2 one end is connected with battery electrode, and the other end is connected with the first IGBT module.
The IGBT drive circuit is connected with the first IGBT module, the second IGBT module and the 3rd IGBT module.
The model TMS320F2812 of the micro-control unit.
The battery pack rated voltage Ubat of the two-way DC/DC converters is 96V, i.e. standard configuration 8 saves 12V, 700AH
Lead-acid accumulator, when the crash time in short-term, can also be configured 100AH lithium battery.
The two-way DC/DC converter output terminals Udc rated voltages are 540V.
The battery pack of the two-way DC/DC converters is also in parallel with DC/DC converters.
The governor circuit is connected by main board power supply unit with DC/DC converters.
The DC/DC converters are connected with 12/24V power supplys, for elevator control circuit and governor circuit power supply.
The utility model to the 3rd IGBT module when carrying out PWM controls, it is possible to achieve boosting, when to the second IGBT module
When carrying out PWM controls, it is possible to achieve decompression, so as to realize the different working modes of elevator power supply.
Mode of operation of the present utility model includes：
1st, solves the mode of operation of problem one
PWM controls are carried out to the first IGBT module when civil power is normal, the first IGBT module is in copped wave state, first, ensureing
Power DC bus voltage Udc is in normal condition, second, providing energy to two-way DC/DC converters, it is worked in decompression
State, de minimis energy is supplemented to battery pack.Simultaneity factor monitors civil power Ua, Ub, Uc and DC bus-bar voltage Udcbus's in real time
Value, is analyzed instantaneous value, and when Udcbus occurs abnormal, power supply can judge the different of DC bus-bar voltage in 2ms
Often, if falling, power supply can close the first IGBT module immediately, control two-way DC/DC to be in pressure-increasning state, digital feedback
System is rapidly performed by the IGBT module of PID adjustment controls the 3rd, and DC bus-bar voltage is risen into 540V, passes through the first IGBT moulds
Diode is powered to frequency changer direct current bus inside block, ensures to be followed by the normal work of load.So as to avoid civil power instantaneous
Fall the influence to elevator operation.After system detectio civil power and Udcbus recover normal, automatically restore to and supplemented to battery pack
The state of electricity.If detecting, instantaneously there is the peak voltage of higher-energy in civil power, and power supply can keep the first IGBT module to beat
Open state, controls two-way DC/DC to be in decompression state, and digital feedback system is rapidly performed by the IGBT moulds of PID adjustment controls the 2nd
Block, peak voltage is released to battery pack, ensure to be followed by the normal work of load.When system detectio civil power and Udcbus recover just
Chang Hou, automatically restore to the state to battery pack supplement electricity.
2nd, solves the mode of operation of problem two
If there is commercial power interruption, power supply can close the first IGBT module immediately, control two-way DC/DC to be in pressure-increasning state,
Digital feedback system quickly realizes the IGBT module of PID adjustment controls the 3rd, and output DC bus-bar voltage is increased into 540V, protected
Hold the uninterrupted continuous firing of frequency converter.Behind city power recovery, power up original normal operating conditions.
3rd, solves the mode of operation of problem three
Whether civil power is normal, (the judgement mark of corresponding 380V electric power systems when detecting that motor is in generating state
When standard is higher than 700VDC for DC bus-bar voltage Udcbus), the first IGBT module keeps open-minded, and digital feedback system is quickly real
Existing PID the second IGBT modules of adjustment control, power supply can control two-way DC/DC circuits to enter decompression state, by energy storage to electricity
Chi Zhong, and power supply can ensure that braking energy can fill according to actually measured DC bus-bar voltage state by PI regulations
Divide and absorb.It is as shown in Figure 6 to brake interruption subroutine flow chart.
Under this mode of operation, because two-way DC/DC circuits Bu Yu cities electrically connect, it is not necessary to complicated by energy feedback to electricity
Such as three-phase voltage current detection of net, lock equality circuit, reliability greatly improve.And Brake energy recovery is to battery, together
Under the sample crash time, compared with configuring UPS, it is possible to reduce battery configures.Assuming that 20% is can present state, therefore battery needs
The crash time for really providing energy is 1-20% × 0.95 (charge efficiency) -20% × 0.95 (discharging efficiency)=62%, because
This battery is configured to 62% routinely configured, and great amount of investment can be saved when the crash time is longer and place takes.
In order to ensure that battery is at receiving all the time the state of whole energy, battery then must after absorbing primary energy
It must discharge once.The method of release is when civil power is normal, by controlling output voltage Udc voltages to be higher than commercial power rectification voltage
Udcbus realizes, direct battery discharge during commercial power interruption.
4th, solves the mode of operation of problem four
Power supply can control battery discharge (to avoid electric energy from all releasing, to cause by chance to meet at the end of electricity price crest segment is fast
To emergency function failure during power-off, battery only release capacity 70%), charged when electricity price paddy section just starts, therefore can be with
Small-scale storage energy operation is realized using peak valley section electricity price difference, saves the electricity charge.Illustrate：Calculated and put by configuration 700AH batteries
Go out capacity 70% calculates, and the section 700AH batteries of 15kW motors configuration 8 can be 5 hours with emergency operating, then year can during storage energy operation
(electricity price between peak and valley) × 15 (kw) × 3.5 (h) × 0.95 (charge efficiency) × 0.95 (discharging efficiency) of power cost saving about 0.7 ×
365 (my god)=12106 yuan.
Battery configuration need to verify battery charge power, meet the requirement that charging maximum current is 0.3C.If the crash time compared with
It is short, then lithium battery can be used, its charging current can reach 1.5C, fully meet the needs that can be presented.
In order to avoid that can not be met an urgent need when battery, which thoroughly discharges, causes to occur commercial power interruption, system can learn elevator operation automatically
Rule, reaching paddy section (22:00-8:00) just discharged before at the time of, and be only discharged to 70% capacity.
When battery charges, the rectifier that can be carried in the time dead that elevator is not run using frequency converter is realized high-power
Charging, equally saves the investment of charger.Paddy section charging subprogram block diagram is as shown with 7.If elevator is run, can stop filling
Electricity to frequency converter normal operation in order to avoid impact.Can also low current supplement electricity.
Above circuit is having the application of frequency converter occasion of on-position, such as oxygen rifle lifting device of steel mill etc. can be adopted
With the technical program, reach the outstanding advantages for reducing investment, reducing operating cost.Two-way DC/DC circuits can be according to actually making
The pattern of isolation is taken with environment.
Intelligent multi-function power supply and routine techniques measure performance contrast piece table 1.
Table 1
Explanation：√ expressions can realize this function, × represent that this function can not be realized.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
It is not new to this practicality although above-mentioned specific embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deformation still in protection model of the present utility model
Within enclosing.
Claims (10)
- A kind of 1. intelligent multi-function electric power system, it is characterised in that：Including governor circuit, two-way DC/DC converters and frequency conversion Device, the governor circuit include micro-control unit, the micro-control unit respectively with power DC bus voltage detection unit, electricity Cell voltage detection unit and the connection of battery charging and discharging current detecting unit, the power DC bus voltage detection unit with it is double To DC/DC converters output end connect, cell voltage detection unit and the battery charging and discharging current detecting unit with it is two-way The battery pack connection of DC/DC converters, the two-way DC/DC converters are connected by the first IGBT module and frequency changer direct current bus Connect.
- A kind of 2. intelligent multi-function electric power system as claimed in claim 1, it is characterised in that the micro-control unit also with Line voltage detection unit, frequency changer direct current bus voltage detection unit, main board power supply unit connect with IGBT drive circuit.
- A kind of 3. intelligent multi-function electric power system as claimed in claim 1 or 2, it is characterised in that the line voltage inspection The mains electricity input end for surveying unit and frequency converter connects, the frequency changer direct current bus voltage detection unit and frequency changer direct current bus Connection, the main board power supply unit are connected by DC/DC converters with 12/24V power supplys.
- A kind of 4. intelligent multi-function electric power system as claimed in claim 1, it is characterised in that the two-way DC/DC conversion Device includes battery pack, inductance, the second IGBT module, the 3rd IGBT module and electric capacity, and the inductance is connected with battery anode, institute State the emitter stage of the second IGBT module, the colelctor electrode of the 3rd IGBT module is connected with inductance, the current collection of second IGBT module Pole is connected with the first IGBT module, and the emitter stage of the 3rd IGBT module is connected with battery electrode, described electric capacity one end with Battery electrode is connected, and the other end is connected with the first IGBT module.
- A kind of 5. intelligent multi-function electric power system as described in claim 2 or 4, it is characterised in that the IGBT drivings electricity Road is connected with the first IGBT module, the second IGBT module and the 3rd IGBT module.
- A kind of 6. intelligent multi-function electric power system as claimed in claim 1, it is characterised in that the type of the micro-control unit Number it is TMS320F2812.
- A kind of 7. intelligent multi-function electric power system as claimed in claim 1, it is characterised in that the two-way DC/DC conversion The battery pack of device is lead-acid accumulator.
- A kind of 8. intelligent multi-function electric power system as claimed in claim 1, it is characterised in that the two-way DC/DC conversion The battery pack of device is also in parallel with DC/DC converters.
- 9. a kind of elevator supply system, including the intelligent multi-function electric power system as described in any claim 1-8.
- 10. a kind of steel mill oxygen lance electric power system, including the intelligent multi-function electric power system as described in any claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721733151.3U CN207069597U (en) | 2017-12-13 | 2017-12-13 | A kind of intelligent multi-function electric power system, elevator and steel mill oxygen lance electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721733151.3U CN207069597U (en) | 2017-12-13 | 2017-12-13 | A kind of intelligent multi-function electric power system, elevator and steel mill oxygen lance electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207069597U true CN207069597U (en) | 2018-03-02 |
Family
ID=61514681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721733151.3U Active CN207069597U (en) | 2017-12-13 | 2017-12-13 | A kind of intelligent multi-function electric power system, elevator and steel mill oxygen lance electric power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207069597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113949056A (en) * | 2021-10-25 | 2022-01-18 | 西子电梯科技有限公司 | Elevator energy conversion system and conversion method thereof |
-
2017
- 2017-12-13 CN CN201721733151.3U patent/CN207069597U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113949056A (en) * | 2021-10-25 | 2022-01-18 | 西子电梯科技有限公司 | Elevator energy conversion system and conversion method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108162989B (en) | Traction-assisted integrated vehicle-mounted energy storage system for urban rail transit vehicle | |
| CN103117552B (en) | Hybrid energy storage system based on ordered energy control | |
| CN102361334B (en) | Photovoltaic energy storage electric automobile charging station system and method for switching state of energy storage system | |
| CN205081480U (en) | Battery energy storage system | |
| CN107222029B (en) | Combined modularized mobile energy storage system | |
| CN110571915A (en) | Intelligent energy storage power supply vehicle uninterrupted power supply system device and control method thereof | |
| CN104065157A (en) | Uninterruptible power supply with improved power supply reliability | |
| CN102280912B (en) | Equalization circuit of charge and discharge circuit of battery pack | |
| CN106080243A (en) | Electric car electrical system and method for supplying power to | |
| CN106253314A (en) | Communication base station ferric phosphate lithium cell echelon utilizes charge-discharge system and control method | |
| CN203780389U (en) | Moveable emergency power supply vehicle | |
| CN103595071A (en) | Energy system of micro-grid | |
| CN204681125U (en) | A kind of charging system for electric automobile based on solar energy | |
| CN106505685A (en) | A kind of distributed energy storage charging pile | |
| CN105656067B (en) | Multistage online mobile energy storage power supply system and control method thereof | |
| CN203491707U (en) | Energy storage system based on cascade utilization of power battery | |
| CN205945204U (en) | Modular emergent guarantee power | |
| CN105610190B (en) | Rail traffic vehicles renewable sources of energy feedback comprehensive utilization device and system | |
| CN108448700A (en) | Tackling system mixed tensor energy storage device, system and control method | |
| CN203261050U (en) | Integrally self assembling and disassembling type energy storage square cabin charging station | |
| CN107352338B (en) | Energy-saving device of elevator and its control operation method based on dual energy memory module | |
| CN104333107A (en) | Direct-current screen power source device utilizing hybrid power sources | |
| CN207069597U (en) | A kind of intelligent multi-function electric power system, elevator and steel mill oxygen lance electric power system | |
| CN205960753U (en) | Battery charge and discharge is utilized to communication base station lithium iron phosphate battery echelon | |
| CN203306867U (en) | Ultra-capacitor energy storage type elevator rescue device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210913 Address after: 250098 2523, building 1, Aosheng building, 1166 Xinluo street, Jinan area, China (Shandong) pilot Free Trade Zone, Jinan City, Shandong Province Patentee after: Shandong lockside Electronic Technology Co.,Ltd. Address before: 265400 No. 302, unit 2, building 5, Hexi village, Zhaoyuan City, Yantai City, Shandong Province Patentee before: Jun min Su |
|
| TR01 | Transfer of patent right |