CN208938500U - A kind of elevator regenerated energy feedback net circuit - Google Patents
A kind of elevator regenerated energy feedback net circuit Download PDFInfo
- Publication number
- CN208938500U CN208938500U CN201821172499.4U CN201821172499U CN208938500U CN 208938500 U CN208938500 U CN 208938500U CN 201821172499 U CN201821172499 U CN 201821172499U CN 208938500 U CN208938500 U CN 208938500U
- Authority
- CN
- China
- Prior art keywords
- elevator
- phase
- inverter
- filter
- traction machine
- 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.)
- Expired - Fee Related
Links
Landscapes
- Elevator Control (AREA)
Abstract
The utility model discloses a kind of elevator regenerated energy feedback net circuit, the derrick of the elevator, carriage, counterweight frame is connected after being cut by aluminum profile by certain length and is made, the elevator regenerated energy feedback net circuit includes three-phase rectification bridge, frequency converter, traction machine, power inverter and LCL filter, three phase network power supply signal is rectified through three-phase rectification bridge, the DC inverter of output is to exchange electricity output to elevator traction machine by frequency converter, the output end of power inverter is connect with external three-phase AC grid, the LCL filter is connected between the three-phase output of power inverter and external three-phase AC grid.The utility model presents net circuit by designing regeneration energy on elevator model, make elevator model at runtime can be grid-connected by regenerative electric energy feedback, by the voltage of detection circuit a, b endpoint and watch the reading of ammeter two, the case where student can be made intuitively to understand regeneration energy, achieve the purpose that intuitively fast to drill, electrical principle is understood and grasped convenient for student.
Description
Technical field
The utility model relates to regenerative electric energy technical fields, are to be related to a kind of elevator regenerated energy feedback net circuit specifically.
Background technique
Currently, the School of High Profession Technology of a part offers elevator curricula, maintained with complying with modern architecture to elevator reparing
The demand of technical staff.Elevator working principle is understood and grasped for the ease of student, and applicant, which attempts to make one kind, to be exclusively used in teaching
The elevator model of rehearsal is learned, and has applied for Chinese invention patent (application number 2017100308603) on January 17th, 2017, it should
Patent application by PLC technology, multiple place obstacles a little be set on electric loop realize elevator reparing teaching rehearsal.Elevator
After model is made, inventor devises regeneration energy feedback net circuit, production when elevator model is run on the basis of elevator model
Raw energy is converted into electric energy, and combines theoretical knowledge in teaching and practice, and understands convenient for student and grasp is given lessons knowledge.
Utility model content
The purpose of the utility model is to overcome insufficient and defects in the prior art, provide a kind of apply in practice teaching
On use elevator model regeneration energy feedback net circuit, in order to students elevator controlling and regenerative electric energy in terms of know
Know, with overcome the deficiencies in the prior art.
To achieve the goals above, a kind of elevator regenerated energy feedback net circuit, the elevator designed by the utility model
Including derrick, carriage, traction machine is arranged in derrick top, and a wirerope is wound on traction machine, and wirerope one end connects carriage, the other end
Counterweight is connected, the counterweight includes counterweight frame, to pouring weight, and the derrick, carriage, counterweight frame press one by aluminum profile
Measured length is connected after cutting and is made, and the elevator regenerated energy feedback net circuit includes three-phase rectification bridge, frequency converter, traction machine, function
Rate inverter and LCL filter, three-phase rectification bridge, frequency converter, elevator traction machine, which are sequentially connected, to be connect, three phase network power supply signal warp
The DC inverter of output is exchange electricity output to elevator traction machine by three-phase rectification bridge rectification, frequency converter, power inverter with
The positive-negative output end of DC bus connects, and the output end of power inverter is connect with external three-phase AC grid, the LCL filtering
Device is connected between the three-phase output of power inverter and external three-phase AC grid.
The LCL filter is by net side filter inductance L21, L22, L23, filter capacitor C1, C2, C3 and inverter side
Filter inductance L11, L12, L13 composition, it is inverse that inverter side filter inductance L11, L12, L13 of LCL filter are separately connected power
Become device three-phase alternating current output end, grid-connected filter net side filter inductance L21, L22, the L23 of LCL respectively with external three-phase alternating current
Net is connected, and L11, L12, L13, L21, L22, L23 are separately connected interior resistance.
Capacitor C1 is arranged in DC bus side in the frequency converter.
Ammeter one is arranged in the front side of the three-phase rectification bridge, and ammeter two is arranged on rear side of the LCL filter.
The utility model is with following the utility model has the advantages that car cab, transmission system, the motor of elevator are elevator machine portions
The important composition divided, the counterweight of elevator in the process of running, for being balanced to part carrying weight and carriage body self weight, promote
It is balanced the weight of traction sheave two sides, the weight ratio of counterweight G1 and carriage G2 are 2: 1.The counterweight of elevator model of the invention
Block is also the setting of simulant elevator counterweight, and electric power is exported by frequency converter, drives motor rotation, when elevator underloading or unloaded uplink
When, G1 is greater than G2 gravity, and the gravity of counterweight has played guiding function, drawn threephase asynchronous, and at this moment motor is in renewable hair
Electricity condition.The present invention presents net circuit by energy, realizes the reasonable utilization to the regeneration energy.Pass through detection a, b endpoint
Voltage and the reading for watching ammeter two, reach and intuitively fast drill the case where student can be made intuitively to understand regeneration energy
Purpose understands convenient for student and grasps electrical principle.
Detailed description of the invention
Fig. 1 is the elevator model schematic perspective view of the utility model.
Fig. 2 is the schematic perspective view of the elevator model other direction of the utility model.
Fig. 3 is the functional block diagram of the elevator regenerated energy feedback net circuit of the utility model.
Fig. 4 is the circuit diagram of the elevator regenerated energy feedback net circuit of the utility model.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to Fig. 1-2, elevator model of the present invention includes derrick, carriage 2, and traction machine 1, traction machine is arranged in derrick top
On be wound with a wirerope 4, wirerope one end connects carriage 2, and the other end connects counterweight.The back of elevator is arranged in counterweight
Face, including counterweight frame 3, to pouring weight 5.Derrick, carriage 2, counterweight frame are connected after being cut by aluminum profile by certain length and are made, former
Material is readily available on the market, and lower cost.An elevator is fixedly mounted on counterweight frame top (and to be cut out by aluminum profile
Cut to obtain), the elevator and counterweight frame fix (not shown out) by triangle gusset and bolt, the wirerope on traction machine
Rope is tightly on elevator.Pouring weight is fixed on the bottom beam of counterweight frame.A column is arranged in the side of derrick, for counterweight frame
Guiding is slided up and down, two curb girders of counterweight frame are fixed with guide wheel mechanism, and the idler wheel of guide wheel mechanism is sliding along a wherein facade for column
It is dynamic, make that pouring weight is kept vertically moving.
7, No. two doors 8 of the No.1 door being arranged in carriage 2.Door mobile device include motor (not shown), a pair of of pulley 9,
Belt 10.The belt is wound on the pulley, and No.1 door 7 is fixed on the upper section of belt 10, No. two by the first connector 11
Door 8 is fixed on the lower section of belt 10 by the second connector 12, therefore, when a pair of of pulley 9 is lived clockwise together with belt 10
When dynamic, one, No. two door can be made to move towards and make shutdown trend, on the contrary, one, No. two door makees enabling trend to movement opposite to each other.
Derrick is provided with crossbeam for every layer of floor by simulation, is arranged U-shaped deceleration inductive switch 6 on the crossbeam, described U-shaped to subtract
Fast inductive switch and master control borad communication connection.When the U-shaped deceleration inductive switch for simulating floor senses that carriage is passed through, to master control
Whether plate sending electric signal, master control borad reception electric signal, the position of more U-shaped deceleration inductive switch and effective target floor position
Meet the deceleration conditions of setting, if so, master control borad driving traction machine runs slowly until carriage arrival has into deceleration subprogram
Destination is imitated, traction machine is out of service.Into after deceleration subprogram, bistable state inductive switch is mobile with carriage, will be by every
The inductive signal of layer magnet ring is sent to master control borad, and master control borad judges carriage traffic direction according to magnet ring inductive signal, when having received
When imitating one group of magnet ring inductive signal of destination, control traction machine stops.
Elevator model for practice teaching is in the front of derrick setting training operation bench (not shown), training operation bench
Multiple control buttons are installed, master control borad is installed in platform, display screen is also set up on derrick.
Referring to Fig. 3-4, elevator regenerated energy feedback net circuit includes three-phase rectification bridge 21, frequency converter 22, elevator traction machine hair
Motivation 23, power inverter 24 and LCL filter 25, capacitor C1 is arranged in DC bus side in frequency converter 22, in three-phase rectification bridge 1
Ammeter 1 is arranged in front side, and ammeter 2 27 is arranged on rear side of LCL filter 25.
Three-phase rectification bridge 21, frequency converter 22, elevator traction machine engine 23 are sequentially connected and connect, three phase network power supply signal warp
Three-phase rectification bridge 21 rectifies, and by DC bus capacitor filtering C1 pressure stabilizing output, the DC inverter of output is exchange by frequency converter 22
Electricity output to elevator traction machine, frequency converter 22 connects three phase network after power inverter 24 simultaneously；The LCL filter point
It is not connect with power inverter output end and three phase network.Frequency converter 22 and power inverter 24 are by six switching tubes (IGBT)
Composition.Three phase mains L1, L2, L3, it powers by ammeter one to three phase converter, first passes through three-phase rectification bridge rectification, electric current device
C1 filters inversion of direct current, loads at the inverter bridge both ends being made of switching tube (IGBT) T1-T6.When needing driving motor to rotate,
Inverter bridge drive part in frequency converter generates the three-phase of corresponding voltage and frequency by driving each bridge arm Push And Release of inverter bridge
Exchange electric drive motor.Realize VVVF speed regulation.The weight ratio of counterweight G1 and carriage G2 when due to elevator assembly are 2: 1, work as electricity
When ladder underloading or unloaded uplink, G1 is greater than G2 gravity, and the gravity of counterweight has played guiding function, and drawing elevator traction machine, (three is different
Walk motor), at this moment motor is in regenerative power generation state.High direct voltage is generated at capacitor both ends.When elevator is heavily loaded or fully loaded
When downlink, G2 is greater than G1 gravity, and the gravity that carriage generates plays guiding function, and vertical pulling threephase asynchronous is in regenerative electric power
State.Equally high direct voltage is generated at the both ends capacitor C1.
When a, b two o'clock detect high direct voltage, is opened by inverter internal driving chip EXB841 and opened by high-power
The three phase full bridge inverter bridge leg for closing pipe (IGBT) T7-T12 composition, carries out SPWM pulsewidth modulation.It is filtered using LCL filter
Wave, (R11, R12, R13, R21, R22, R23 are interior resistance) are then carried out by ammeter two grid-connected.
When elevator is in underloading uplink, heavily loaded downlink or braking, traction motor is in generating state, the regeneration energy of generation
Rectified to be converted to direct current, the one-way conduction characteristic of rectification module makes this Partial DC electricity can only be to DC bus lateral capacitance
Charging, DC bus lateral capacitance voltage pump rise, this portion of energy are three-phase main-frequency alternating current through power inverter inversion.Using
LCL filter carries out higher hamonic wave to the three-phase main-frequency alternating current that power inverter inversion generates and filters out, and makes grid-connected current harmonic wave
Reach standard, and networking electric current is consistent with electric network voltage phase, reaches with the same phase of frequency, filtered electric energy feedback to three phase network
In.LCL type filter is good to the inhibitory effect of higher hamonic wave.
LCL filter by grid side filter inductance L11, L12, L13, filter capacitor C1, C2, C3, damping resistance R11,
R12, R13, R21, R22, R23 and inverter side filter inductance L21, L22, L23 composition, the inverter side filter of LCL filter
Wave inductance L11, L12, L13 are separately connected the three-phase alternating current output end of power inverter, LCL filter grid side filter inductance
L11, L12, L13, L21, L22, L23 are connected with the three of external three-phase AC grid respectively, resistance R11, R12, R13 connection
L11, L12, L13, resistance R21, R22, R23 connect L21, L22, L23.
While there has been shown and described that the embodiments of the present invention, those skilled in the art should understand that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are limited by claim and its equivalent replacement, without changing made by creative work
Into etc., it should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of elevator regenerated energy presents net circuit, the elevator includes derrick, carriage, and traction machine, traction machine is arranged in derrick top
On be wound with a wirerope, wirerope one end connects carriage, and the other end connects counterweight, the counterweight include counterweight frame,
To pouring weight, the derrick, carriage, counterweight frame are connected after being cut by aluminum profile by certain length and are made, it is characterised in that: described
Elevator regenerated energy feedback net circuit includes three-phase rectification bridge, frequency converter, traction machine, power inverter and LCL filter, and three-phase is whole
Stream bridge, frequency converter, elevator traction machine are sequentially connected and connect, and three phase network power supply signal is rectified through three-phase rectification bridge, and frequency converter will be defeated
DC inverter out is exchange electricity output to elevator traction machine, and the positive-negative output end of power inverter and DC bus connects,
The output end of power inverter is connect with external three-phase AC grid, and the LCL filter is connected to the three-phase of power inverter
Between output and external three-phase AC grid.
2. elevator regenerated energy according to claim 1 presents net circuit, it is characterised in that: the LCL filter is by net side
Filter inductance L21, L22, L23, filter capacitor C1, C2, C3 and inverter side filter inductance L11, L12, L13 composition, LCL
Inverter side filter inductance L11, L12, L13 of filter are separately connected the three-phase alternating current output end of power inverter, and LCL is grid-connected
Filter net side filter inductance L21, L22, L23 are connected with external three-phase AC grid respectively, L11, L12, L13, L21,
L22, L23 are separately connected interior resistance.
3. elevator regenerated energy according to claim 2 presents net circuit, it is characterised in that: the frequency converter is in DC bus
Capacitor C1 is arranged in side.
4. elevator regenerated energy according to claim 3 presents net circuit, it is characterised in that: the front side of the three-phase rectification bridge
Ammeter one is set, ammeter two is set on rear side of the LCL filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172499.4U CN208938500U (en) | 2018-07-23 | 2018-07-23 | A kind of elevator regenerated energy feedback net circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172499.4U CN208938500U (en) | 2018-07-23 | 2018-07-23 | A kind of elevator regenerated energy feedback net circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208938500U true CN208938500U (en) | 2019-06-04 |
Family
ID=66716520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821172499.4U Expired - Fee Related CN208938500U (en) | 2018-07-23 | 2018-07-23 | A kind of elevator regenerated energy feedback net circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208938500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597349A (en) * | 2018-07-23 | 2018-09-28 | 顺德职业技术学院 | A kind of elevator regenerated energy feedback net circuit |
-
2018
- 2018-07-23 CN CN201821172499.4U patent/CN208938500U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597349A (en) * | 2018-07-23 | 2018-09-28 | 顺德职业技术学院 | A kind of elevator regenerated energy feedback net circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101917020B (en) | Lift energy feedback, reactive compensation and switched-off emergency running method and system | |
| CN103663067A (en) | Elevator multi-fold door operator device | |
| CN101237185A (en) | Energy feedback and harmonic wave passive compensation system applicable to commutation device | |
| CN208938500U (en) | A kind of elevator regenerated energy feedback net circuit | |
| CN107623466A (en) | A kind of brake apparatus and braking method for handing over orthogonal traction drive | |
| CN102001558A (en) | Control system integrating elevator control, driving and energy feedback | |
| CN205051584U (en) | Three -phase - single -phase potential device of no frequency transformer | |
| CN106364335B (en) | A kind of sagging coefficient automatic adjusting device and method of Bidirectional variable-flow type feedback device | |
| CN101964598A (en) | Traction convertor of mining electric locomotive of alternating current (AC) drive trolley type | |
| CN114465259A (en) | Novel energy feedback system for hybrid energy storage of elevator | |
| CN201222711Y (en) | Electric energy feedback device for electric control system of industrial sewing machine | |
| CN108597349A (en) | A kind of elevator regenerated energy feedback net circuit | |
| Kulkarni et al. | A comparative evaluation of fine regenerative and nonregenerative vector controlled drives for AC gearless elevators | |
| CN219611628U (en) | Synchronous energy-saving control system of ultra-long stroke oil pumping unit | |
| CN107544471A (en) | The power assembly test system of electric automobile and its electrical driving unit | |
| CN201808977U (en) | Multi-level four-quadrant elevator driving system | |
| CN201201829Y (en) | Energy resource feedback system for elevator | |
| CN104935168B (en) | Multifunction transformer for traction drive | |
| CN208603562U (en) | It is a kind of can self power generation staircase | |
| CN204324652U (en) | Machine-roomless lift | |
| CN202285156U (en) | Improved motor and automatic control experimental device | |
| CN204454215U (en) | The escalator of two permanent-magnet synchronous host driven or footway control system | |
| CN201898454U (en) | Vehicle-mounted power supply inverter | |
| CN206945837U (en) | A kind of locomotive converter test system | |
| CN101976957A (en) | Four-quadrant converter circuit and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210315 Address after: 511400 302, No. 93, Shizhong 1st Road, Dashi street, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou xiaoruntong Technology Co.,Ltd. Address before: 93 Desheng East Road, Shunde District, Foshan City, Guangdong Province Patentee before: Shunde Polytechnic |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190604 Termination date: 20210723 |