CN206878736U - A kind of energy conserving system of elevator - Google Patents
A kind of energy conserving system of elevator Download PDFInfo
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- CN206878736U CN206878736U CN201720158093.XU CN201720158093U CN206878736U CN 206878736 U CN206878736 U CN 206878736U CN 201720158093 U CN201720158093 U CN 201720158093U CN 206878736 U CN206878736 U CN 206878736U
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- elevator
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- frequency converter
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- driving frequency
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Abstract
The utility model belongs to energy-conserving elevator technical field, discloses a kind of energy conserving system of elevator, and the system includes：For realizing the two-way flow of energy, the IGBT (PCC) powers of rectifier bridge are done using IGBT；For producing SVPWM control pulses, on the one hand the power factor of adjustment input, eliminates the harmonic pollution to power network；On the other hand by the anti-dsp controller for being sent to power network of energy caused by electromotor feedback；For adjusting the driving frequency converter of the speed of service above and below elevator；It is connected with driving frequency converter, runs the braking resistor of inertia up and down for elevator brake；It is connected with driving frequency converter, for the motor for driving elevator to run up and down.The electricity of the utility model energy-conservation is used for the equipment such as public illumination, fan, air-conditioning, water pump inside owner, and using four-quadrant product of the present utility model, owner can save more than 30% electricity charge every month.
Description
Technical field
The utility model belongs to energy-conserving elevator technical field, more particularly to a kind of energy conserving system of elevator.
Background technology
Common frequency converter mostly converts alternating current to direct current using diode rectifier bridge, then using IGBT inversion transformation techniques
Direct current is changed into all adjustable alternating current control ac motor of electric voltage frequency.This frequency converter can only operate in electronic shape
State, so referred to as two quadrant frequency converters.Because two quadrant frequency converters use diode rectifier bridge, the two-way of energy can not be realized
Flowing, so having no idea to send the energy of motor feedback system back to power network.
Hoist ropes (steel wire rope) both ends are ined succession car and counterweight respectively, are wrapped on traction sheave and directive wheel, traction is electronic
Machine, by tractive force caused by hoist ropes and traction sheave friction, realizes that the lifting of car and counterweight is transported by driving traction sheave to rotate
It is dynamic, reach transport purpose.
Motor in quick docking process (when namely deceleration or jerk), due to effect of inertia, can be produced
Substantial amounts of regenerative electric energy, the intermediate dc part of frequency converter is directly acted on, frequency converter can be caused if do not consumed this part electric energy
Report failure or frequency converter damage.Conventional elevator consumes this part electric energy using braking resistor.
In some motor want the application of feedback energy, such as elevator, elevator, centrifuge system, oil pumper etc., only
Resistive braking unit can be increased on two quadrant frequency converters, the energy expenditure of electromotor feedback is fallen.In addition, diode rectifier bridge
Serious harmonic pollution can be produced to power network.
In summary, the problem of prior art is present be：Elevator can not realize the two-way flow of energy, have no idea electricity
The energy of machine feedback system sends power network back to, and the energy expenditure of electromotor feedback is fallen, and controls two poles in the frequency converter of elevator
Pipe rectifier bridge can produce serious harmonic pollution to power network.
The content of the invention
To solve the problems, such as that prior art is present, the purpose of this utility model is to provide a kind of energy conserving system of elevator.
The utility model is achieved in that a kind of energy conserving system of elevator, and the energy conserving system of the elevator includes：
For realizing the two-way flow of energy, the IGBT (PCC) powers of rectifier bridge are done using IGBT；
For producing SVPWM control pulses, on the one hand the power factor of adjustment input, eliminates the harmonic pollution to power network；
On the other hand by the anti-dsp controller for being sent to power network of energy caused by electromotor feedback；
For adjusting the driving frequency converter of the speed of service above and below elevator；
It is connected with driving frequency converter, runs the braking resistor of inertia up and down for elevator brake；
It is connected with driving frequency converter, for the motor for driving elevator to run up and down.
Further, the energy conserving system of the elevator also includes：
Lift car for bearing goods；
It is connected by steel wire with elevator cab, for adjusting the balance weight body of running status above and below lift car.
The IGBT (PCC) powers are connected by wire with dsp controller；The IGBT (PCC) powers are by wire with driving
Dynamic frequency converter connection；The motor is connected by wire with dsp controller.
The energy conserving system and power-economizing method of elevator provided by the utility model, the electricity of energy-conservation are used for public photograph inside owner
The equipment such as bright, fan, air-conditioning, water pump, using four-quadrant product of the present utility model, owner can save more than 30% every month
The electricity charge.Situations below is saved and become apparent from：The higher elevator of floor, braking is frequent, and energy-conservation is more；2. the electricity newly installed and used
Ladder, machinery inertial is big, and energy-conservation is more；The more long elevator of usage time, frictional force is big, and energy-conservation is more；The faster elevator of speed, system
Dynamic frequent, energy-conservation is more；Using more frequently elevator, braking is frequent, and energy-conservation is more.The utility model is fast according to different ladders are measured
It is as follows with the result of load-carrying, average power saving rate：When unloaded up, economize on electricity 45.82%；When 25% payload ratings are up, economize on electricity
30.63%；During 40% payload ratings up (descending), economize on electricity 22.76%；During 50% payload ratings up (descending), economize on electricity
20.89%；When 75% payload ratings are descending, economize on electricity 36.64%；100% it is fully loaded descending when, economize on electricity 47.52%.Integrated power-saving
Rate 30.04%.
Brief description of the drawings
Fig. 1 is view when the car that the utility model embodiment provides is fully loaded with descending；
View when Fig. 2 is the car empty down that the utility model embodiment provides；
Fig. 3 is view when the car that the utility model embodiment provides is fully loaded with up；
Fig. 4 is view when the car of the utility model embodiment offer is unloaded up.
In figure：1st, car；2nd, balance weight body；3rd, motor；4th, IGBT (PCC) powers；5th, dsp controller；6th, frequency conversion is driven
Device；7th, braking resistor.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this practicality
It is new, it is not used to limit the utility model.
The energy conserving system for the elevator that the utility model embodiment provides, the energy conserving system of the elevator include：
For realizing the two-way flow of energy, the IGBT (PCC) powers 4 of rectifier bridge are done using IGBT；
For producing SVPWM control pulses, on the one hand the power factor of adjustment input, eliminates the harmonic pollution to power network；
On the other hand by the anti-dsp controller 5 for being sent to power network of energy caused by electromotor feedback；
For adjusting the driving frequency converter 6 of the speed of service above and below elevator；
It is connected with driving frequency converter, runs the braking resistor 7 of inertia up and down for elevator brake；
It is connected with driving frequency converter, for the motor 3 for driving elevator to run up and down.
Further, the energy conserving system of the elevator also includes：
Lift car 1 for bearing goods；
It is connected by steel wire with lift car, for adjusting the balance weight body 2 of running status above and below lift car.
The IGBT (PCC) powers 4 are connected by wire with dsp controller 5；The IGBT (PCC) powers 4 by wire with
Driving frequency converter 6 connects；The motor 6 is connected by wire with dsp controller 5.
Below in conjunction with the accompanying drawings and specific embodiment is explained in detail to structure of the present utility model.
The power-economizing method for the elevator that the utility model embodiment provides, including：
The two-way flow of energy is realized using IGBT power module, rectifier bridge is done using IGBT, with high speed, high computing energy
The DSP of power produces SVPWM control pulses；
On the one hand the power factor of adjustment input, eliminates the harmonic pollution to power network；On the other hand electromotor feedback is produced
Raw energy is counter to be sent to power network.
The utility model embodiment provides a kind of energy conserving system of elevator, including IGBT power module and DSP controllers.
The power-economizing method for the elevator that the utility model embodiment provides, if car mass is P, payload ratings quality is Q；Match somebody with somebody
Weight weight is P+0.5Q；
As shown in Figure 1, when car 1 is fully loaded with descending, car 1 is fully loaded with the mass of quality ＞ balance weight bodies 2；Unnecessary 0.5Q quality
For generating electricity；And feed back in power network；Car 1 is driven to run by motor 3.
As shown in Fig. 2 when 1 empty down of car, the mass of 1 empty mass ＜ balance weight bodies of car 2；Now the elevator is in
Use electricity condition；Car 1 is driven to run by motor 3.
As shown in figure 3, when car 1 is fully loaded with up, car 1 is fully loaded with the mass of quality ＞ balance weight bodies 2；Now the elevator is in
Use electricity condition；Car 1 is driven to run by motor 3.
As shown in figure 4, when car 1 is unloaded up, the mass of 1 empty mass ＜ balance weight bodies of car 2；Unnecessary 0.5Q quality
For generating electricity；And feed back in power network；Car 1 is driven to run by motor 3.
Application principle of the present utility model is further described with reference to specific embodiment.
UN-5000 power saving rate test statisticses in the utility model embodiment：
Test equipment：Every elevator respectively installs 1 mechanical electricity meter and electronic electricity meter；
Mechanical electricity meter feature：Stem-winder rotates forward under elevator power consumption state, and numeral is cumulative, and generating state is in elevator
When stem-winder invert, numeral successively decreases；
Electronic electricity meter feature：It is no matter cumulative in elevator power consumption state and generating state, numeral；
Generated energy computational methods are：{ (Current electronic formula ammeter numeral-last time electronic digital table)-(Current mechanical formula electricity
Table numeral-mechanical electricity meter numeral) }/2；
The computational methods of power consumption are：Current mechanical formula ammeter numeral-last time mechanical electricity meter numeral+generated energy is current
Electronic electricity meter numeral-last time electronic digital table-generated energy；
Power saving rate computational methods are：Generated energy/(power consumption+generated energy) * 100%；
It is as follows to survey power saving rate computational methods：
Generated energy computational methods are：{ (Current electronic formula ammeter numeral-last time electronic digital table)-(Current mechanical formula electricity
Table numeral-mechanical electricity meter numeral) }/2={ (166-63)-(51-11) }/2=(103-40)=31.5；
Power consumption is:166-63-31.5=71.5；
Power saving rate is：Power saving rate computational methods are：Generated energy/(power consumption+generated energy) * 100%=31.5/ (71.5+
31.5) * 100%=30.5%.
The electricity of the utility model energy-conservation is used for public illumination inside owner, fan, air-conditioning, the equipment such as water pump, therefore for
It is to save electricity for whole system, that is to say, that if under same operating mode, using four-quadrant product, owner can save every month
Save more than 30% electricity charge.Situations below is saved and become apparent from：
1. the higher elevator of floor, braking is frequent, and energy-conservation is more；2. the elevator newly installed and used, machinery
2. inertia is big, energy-conservation is more；
3. the more long elevator of usage time, frictional force is big, and energy-conservation is more；
4. the faster elevator of speed, braking is frequent, and energy-conservation is more；
5. using more frequently elevator, braking is frequent, and energy-conservation is more.
The utility model is as follows according to the result for measuring different ladder speed and load-carrying, average power saving rate：
When unloaded up, economize on electricity 45.82%；When 25% payload ratings are up, economize on electricity 30.63%；On 40% payload ratings
During row (descending), economize on electricity 22.76%；During 50% payload ratings up (descending), economize on electricity 20.89%；75% payload ratings are descending
When, economize on electricity 36.64%；100% it is fully loaded descending when, economize on electricity 47.52%.Integrated power-saving rate 30.04%.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of energy conserving system of elevator, it is characterised in that the energy conserving system of the elevator includes：
For realizing the two-way flow of energy, the IGBT (PCC) powers of rectifier bridge are done using IGBT；
For producing SVPWM control pulses, on the one hand the power factor of adjustment input, eliminates the harmonic pollution to power network；It is another
Aspect is by the anti-dsp controller for being sent to power network of energy caused by electromotor feedback；
For adjusting the driving frequency converter of the speed of service above and below elevator；
It is connected with driving frequency converter, runs the braking resistor of inertia up and down for elevator brake；
It is connected with driving frequency converter, for the motor for driving elevator to run up and down.
2. the energy conserving system of elevator as claimed in claim 1, it is characterised in that the energy conserving system of the elevator also includes：
Lift car for bearing goods；
It is connected by steel wire with lift car, for adjusting the balance weight body of running status above and below lift car.
3. the energy conserving system of elevator as claimed in claim 1, it is characterised in that the IGBT (PCC) powers by wire with
Dsp controller connects；The IGBT (PCC) powers are connected by wire with driving frequency converter；The motor by wire with
Dsp controller connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720158093.XU CN206878736U (en) | 2017-02-22 | 2017-02-22 | A kind of energy conserving system of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720158093.XU CN206878736U (en) | 2017-02-22 | 2017-02-22 | A kind of energy conserving system of elevator |
Publications (1)
| Publication Number | Publication Date |
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| CN206878736U true CN206878736U (en) | 2018-01-12 |
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ID=61326412
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720158093.XU Active CN206878736U (en) | 2017-02-22 | 2017-02-22 | A kind of energy conserving system of elevator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788090A (en) * | 2017-02-22 | 2017-05-31 | 联盟电梯（苏州）有限公司 | The energy conserving system and power-economizing method of a kind of power-generating elevator |
| CN115159316A (en) * | 2022-06-22 | 2022-10-11 | 常熟理工学院 | Elevator energy-saving device and method with bidirectional buffering function |
-
2017
- 2017-02-22 CN CN201720158093.XU patent/CN206878736U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788090A (en) * | 2017-02-22 | 2017-05-31 | 联盟电梯（苏州）有限公司 | The energy conserving system and power-economizing method of a kind of power-generating elevator |
| CN115159316A (en) * | 2022-06-22 | 2022-10-11 | 常熟理工学院 | Elevator energy-saving device and method with bidirectional buffering function |
| CN115159316B (en) * | 2022-06-22 | 2023-11-28 | 常熟理工学院 | Elevator energy-saving device and method with bidirectional buffer function |
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