CN210297270U - Energy recovery device and elevator - Google Patents
Energy recovery device and elevator Download PDFInfo
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- CN210297270U CN210297270U CN201921050388.0U CN201921050388U CN210297270U CN 210297270 U CN210297270 U CN 210297270U CN 201921050388 U CN201921050388 U CN 201921050388U CN 210297270 U CN210297270 U CN 210297270U
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- 238000011084 recovery Methods 0.000 title claims abstract description 49
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 230000009466 transformation Effects 0.000 claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000001172 regenerating effect Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of motor regenerative braking, and provides an energy recovery device and an elevator, wherein the energy recovery device comprises a monitoring ammeter, a control processing module, a rectification module, an inversion module, a recovery module and a transformation module, and after the rectification processing and the inversion processing are carried out on a power signal output by a power grid, the power is supplied to a motor; the heat generated by the motor is recovered and converted into electric energy; and then, after voltage conversion is carried out on the electric energy, the electric energy is fed back to a power grid and is combined with the power utilization condition of the load to supply power to the load. Therefore, the regenerative braking energy is recycled, and the effect of saving electric energy is achieved; and the electricity utilization condition of the load is monitored in real time through the monitoring ammeter, so that the electric energy after the recovered heat is converted is just consumed by the load, and the problem that the regenerated energy cannot be utilized to cause great waste of the electric energy in the traditional elevator technology is solved.
Description
Technical Field
The utility model belongs to the technical field of the motor regenerative braking, especially, relate to an energy recuperation device and elevator.
Background
The existing elevator driving principle is as follows: the elevator car or its counterweight connected to it by a supporting cable is lifted or lowered by a linear motor. In the running process of the elevator, due to the weight difference value of the elevator car and the counterweight, some regenerated energy can be generated, for example, when the elevator car is in heavy load descending or the elevator car is in light load ascending. This part of the energy is usually released in the form of thermal resistance consumption, which is very wasteful and also causes high temperature problems.
Therefore, the conventional elevator technology has a problem that the regenerated energy cannot be utilized, resulting in a great waste of electric energy.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an energy recuperation device and elevator aims at solving traditional elevator technique and has the problem that regenerative energy can't be utilized to lead to the very big waste of electric energy.
The utility model discloses a first aspect provides an energy recovery device, include:
the monitoring ammeter is connected with the load and used for acquiring the power utilization condition of the load in real time;
the control processing module is connected with the monitoring ammeter and used for outputting corresponding control signals according to the power utilization condition of the load;
the rectification module is connected with a power grid and used for rectifying a power supply signal output by the power grid;
the inversion module is connected with the rectification module and used for performing inversion processing on the rectified power supply signal so as to supply power to the motor;
the recovery module is connected with the rectification module and the inversion module and used for recovering heat generated by the motor according to the control signal and converting the heat into electric energy to be output; and
and the voltage transformation module is connected with the recovery module and the power grid and used for feeding back the electric energy to the power grid to supply power to the load after voltage transformation is carried out on the electric energy.
A second aspect of the present invention provides an elevator, including a motor, the elevator further including an energy recovery device as described above.
The utility model provides an energy recovery device and an elevator, wherein the energy recovery device comprises a monitoring ammeter, a control processing module, a rectifying module, an inverting module, a recovery module and a voltage transformation module, and after the power signal output by a power grid is rectified and inverted, the motor is powered; the heat generated by the motor is recovered and converted into electric energy; and then, after voltage conversion is carried out on the electric energy, the electric energy is fed back to a power grid and is combined with the power utilization condition of the load to supply power to the load. Therefore, the regenerative braking energy is recycled, the effect of saving electric energy is achieved, and the problem that the regenerative energy cannot be utilized to cause great waste of the electric energy in the traditional elevator technology is solved.
Drawings
Fig. 1 is a schematic diagram of a module structure of an energy recovery device according to an embodiment of the present invention.
Fig. 2 is a circuit diagram illustrating an example of an energy recovery device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The energy recovery device comprises a monitoring ammeter, a control processing module, a rectifying module, an inverting module, a recovery module and a voltage transformation module, wherein the power supply signal output by a power grid is subjected to rectifying processing and inverting processing and then is used for supplying power to a motor; the heat generated by the motor is recovered and converted into electric energy; and then, after voltage conversion is carried out on the electric energy, the electric energy is fed back to a power grid and is combined with the power utilization condition of the load to supply power to the load. Therefore, the regenerative braking energy is recycled, and the effect of saving electric energy is achieved.
Fig. 1 shows a module structure of an energy recovery device provided by an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment are shown, which are detailed as follows:
the energy recovery device comprises a monitoring ammeter 101, a control processing module 102, a rectifying module 104, an inverting module 105, a recovery module 108 and a transforming module 107.
The monitoring meter 101 is connected to the load 109, and is configured to obtain the power consumption of the load 109 in real time.
The control processing module 102 is connected to the monitoring meter 101, and is configured to output a corresponding control signal according to a power consumption condition of the load 109.
The rectification module 104 is connected to the power grid 103, and is configured to rectify a power signal output by the power grid 103.
The inverting module 105 is connected to the rectifying module 104, and is configured to perform inverting processing on the rectified power signal to supply power to the motor 106.
The recovery module 108 is connected to the rectification module 104 and the inversion module 105, and is configured to recover heat generated by the motor 106 according to the control signal, convert the heat into electric energy, and output the electric energy.
The transformation module 107 is connected to the recovery module 108 and the power grid 103, and configured to perform voltage transformation on the electric energy, and feed the electric energy back to the power grid 103 to supply power to the load 109.
As an embodiment of the present invention, the energy recovery device further includes a heat consumption module (not shown in fig. 1), which is connected to the rectification module 104 and the inversion module 105, and is used for consuming the excess energy generated during the operation of the elevator by using the heating mode of the resistor, and reducing the adverse effect on the elevator system.
As an embodiment of the present invention, since the energy recovery device is provided with the monitoring meter 101 and the recovery module 108, when the motor 106 is operated, some redundant energy may be generated due to the weight difference between the elevator car and the counterweight, for example, when the elevator car is in heavy load downward or the elevator car is in light load upward; the recovery module 108 recovers energy generated by the motor 106 and feeds the energy back to the power grid for use by other loads; meanwhile, after the voltage transformation module 107 transforms the voltage of the electric energy, the electric energy can be subjected to voltage boosting or voltage reducing, and the power is correspondingly supplied to the load 109 according to the power utilization condition of the load 109, so that the effects of energy conservation and power saving are achieved. Specifically, the load 109 may be a single electric device or may be a plurality of electric devices.
The monitoring electricity meter 101 can monitor the electricity utilization condition of each load 109 (or a single load 109) in real time, and feed back data to the control processing module 102, and after the control processing module 102 obtains the pre-judgment information, the control processing module adjusts how much energy is recovered from the circuit by the recovery module 108, and how much electricity is recovered by the load 109, so that the recovered energy can be fully used by the load 109, and the power grid 103 cannot be affected. Then, the recycling module 108 feeds the electric quantity meeting the current electric demand back to the power grid 103 to supply to other electric appliances, so that the part of energy is just consumed by the electric appliances.
Furthermore, the electrical energy fed back to the grid 103 is not stored but is sent via the grid 103 to other loads 109 that require electrical power. If no load 109 exists on the power grid, the power grid 103 cannot receive feedback electric energy, and at the moment, the feedback electric energy is still consumed through the thermal resistor; meanwhile, the electric energy recovered by the recovery module 108 is fed back to the power grid 103 and cannot reverse the monitoring meter 101.
By adopting the scheme, energy can be effectively recovered in real time, the electric energy regeneration is inverted into sine wave electric energy meeting the national power grid requirement and is recycled, the recovered energy is fed back to the power grid for power utilization of peripheral equipment of the local area network, and a part of energy wasted on the energy consumption resistor is fed back to the power grid, so that the electric energy is effectively saved, the energy-saving effect is remarkable, and considerable social and economic benefits can be obtained; meanwhile, the power distribution capacity of the customer can be reduced, and the service efficiency of a power distribution system can be improved. In addition, as partial energy is recycled, the use of resistance heating elements is greatly reduced, the temperature of the machine room is reduced, the power consumption of the air conditioner of the machine room can be saved, and the better power-saving effect is achieved.
Fig. 2 shows an example circuit of an energy recovery device according to an embodiment of the present invention, and for convenience of description, only the portion related to the embodiment is shown, and the detailed description is as follows:
as an embodiment of the present invention, the above rectifier module 104 is implemented by a rectifier bridge.
As an embodiment of the present invention, the inverter module 105 is implemented by an inverter or a field effect transistor.
As an embodiment of the present invention, the recycling module 108 includes a first switch tube Q1, a second switch tube Q2, a third switch tube Q3, a fourth switch tube Q4, a fifth switch tube Q5, a sixth switch tube Q6, a first capacitor C1, a first diode D1, and a second diode D2.
The input end of the first switch tube Q1 is connected to the output end of the second switch tube Q2, the input end of the third switch tube Q3 is connected to the output end of the fourth switch tube Q4, the input end of the fifth switch tube Q5 is connected to the output end of the sixth switch tube Q6, the output end of the first switch tube Q1, the output end of the third switch tube Q3, the output end of the fifth switch tube Q5, the first end of the first capacitor C1 and the cathode of the first diode D1 are connected in common, the anode of the first diode D1 is used as the first input end of the recovery module 108, the input end of the second switch tube Q2, the input end of the fourth switch tube Q4, the input end of the sixth switch tube Q6, the second end of the first capacitor C1 and the anode of the second diode D2 are connected in common, and the cathode of the second diode D2 is used as the second input end of the recovery module 108.
The first switch tube Q1, the second switch tube Q2, the third switch tube Q3, the fourth switch tube Q4, the fifth switch tube Q5 and the sixth switch tube Q6 all include a triode or a field effect transistor.
As an embodiment of the utility model, above-mentioned vary voltage module 107 includes power frequency isolation transformer, owing to adopt power frequency isolation transformer, can not have common mode interference, can eliminate direct current bias current.
As an embodiment of the present invention, the heat dissipation module is implemented by using a resistor R1.
As an embodiment of the present invention, the control processing module 102 is implemented by using an existing controller.
A second aspect of the present invention provides an elevator, comprising an electric motor 106, said elevator further comprising an energy recovery device as described above.
Because the energy recovered in the operation of the elevator in the traditional scheme is lost through the heating of the heat consumption resistor, the recovery module and the power frequency isolation transformer are added in the scheme, and the controller controls the recovery module to supply part of the recovered energy to the load around the local area network through the feed network at a proper time, so that the energy waste is reduced. The monitoring ammeter obtains the power consumption of load according to the number and the real-time power consumption of current load, and control module obtains the power consumption of load through prejudging, and corresponding electric quantity (guaranteeing that the electric quantity that energy recuperation device retrieved is consumed by other loads completely, and the ammeter that can not frequent appearance is presented the net record) is retrieved from the circuit to the recovery module of controlling again, and remaining electric quantity still passes through the thermal resistance loss, can reduce the electric quantity of loss, and the reduction is generated heat.
To sum up, the embodiment of the utility model provides an energy recovery device and elevator, this energy recovery device includes control ammeter, control processing module, rectifier module, contravariant module, recovery module and vary voltage module, through carrying out rectification processing and contravariant processing to the mains signal of electric wire netting output, supply power to the motor; the heat generated by the motor is recovered and converted into electric energy; and then, after voltage conversion is carried out on the electric energy, the electric energy is fed back to a power grid and is combined with the power utilization condition of the load to supply power to the load. Therefore, the regenerative braking energy is recycled, the effect of saving electric energy is achieved, and the problem that the regenerative energy cannot be utilized to cause great waste of the electric energy in the traditional elevator technology is solved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. An energy recovery device, comprising:
the monitoring ammeter is connected with the load and used for acquiring the power utilization condition of the load in real time;
the control processing module is connected with the monitoring ammeter and used for outputting corresponding control signals according to the power utilization condition of the load;
the rectification module is connected with a power grid and used for rectifying a power supply signal output by the power grid;
the inversion module is connected with the rectification module and used for performing inversion processing on the rectified power supply signal so as to supply power to the motor;
the recovery module is connected with the rectification module and the inversion module and used for recovering heat generated by the motor according to the control signal and converting the heat into electric energy to be output; and
and the voltage transformation module is connected with the recovery module and the power grid and used for feeding back the electric energy to the power grid to supply power to the load after voltage transformation is carried out on the electric energy.
2. The energy recovery device of claim 1, further comprising:
and the heat consumption module is connected with the rectification module and the inversion module and is used for consuming redundant energy generated in the running process of the motor.
3. The energy recovery device of claim 2, wherein the heat dissipation module is implemented by resistive heating.
4. The energy recovery device of claim 1 wherein said rectifier module is implemented using a rectifier bridge.
5. The energy recovery device of claim 1, wherein the inverter module is implemented by an inverter or a field effect transistor.
6. The energy recovery device of claim 1, wherein the recovery module comprises:
the first switch tube, the second switch tube, the third switch tube, the fourth switch tube, the fifth switch tube, the sixth switch tube, the first capacitor, the first diode and the second diode;
the input termination of first switch tube the output of second switch tube, the input termination of third switch tube the output of fourth switch tube, the input termination of fifth switch tube the output of sixth switch tube, the output of first switch tube the output of third switch tube the output of fifth switch tube the first end of first electric capacity and the cathode of first diode is in common, the positive pole of first diode is as retrieve the first input of module, the input of second switch tube the input of fourth switch tube the input of sixth switch tube the second end of first electric capacity and the anode of second diode is in common, the cathode of second diode is as retrieve the second input of module.
7. The energy recovery device according to claim 6, wherein the first switch tube, the second switch tube, the third switch tube, the fourth switch tube, the fifth switch tube and the sixth switch tube each comprise a triode or a field effect transistor.
8. The energy recovery device of claim 1, wherein the transformation module comprises a line frequency isolation transformer.
9. Elevator comprising an electric motor, characterized in that the elevator also comprises an energy recovery device according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921050388.0U CN210297270U (en) | 2019-07-05 | 2019-07-05 | Energy recovery device and elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921050388.0U CN210297270U (en) | 2019-07-05 | 2019-07-05 | Energy recovery device and elevator |
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| CN210297270U true CN210297270U (en) | 2020-04-10 |
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| CN201921050388.0U Active CN210297270U (en) | 2019-07-05 | 2019-07-05 | Energy recovery device and elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113291939A (en) * | 2021-04-08 | 2021-08-24 | 上海新时达电气股份有限公司 | Elevator dispatching method, device, electronic equipment and storage medium |
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- 2019-07-05 CN CN201921050388.0U patent/CN210297270U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113291939A (en) * | 2021-04-08 | 2021-08-24 | 上海新时达电气股份有限公司 | Elevator dispatching method, device, electronic equipment and storage medium |
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Address after: 518000 1903a, block a, Zhongguan Times Square, 4168 Liuxian Avenue, Pingshan community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee after: REPOWER TECHNOLOGY Co.,Ltd. Address before: 4 / F, No.2 factory building, tongfuyu industrial town, Liuxian Avenue, Nanshan District, Shenzhen City, Guangdong Province Patentee before: REPOWER TECHNOLOGY Co.,Ltd. |
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Address after: 518000 floor 11, building A3, Nanshan Zhiyuan, No. 1001, Xueyuan Avenue, Changyuan community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee after: REPOWER TECHNOLOGY Co.,Ltd. Address before: 518000 1903a, block a, Zhongguan Times Square, 4168 Liuxian Avenue, Pingshan community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Patentee before: REPOWER TECHNOLOGY Co.,Ltd. |