CN102185369A - Energy recovering method and device of inertial towing equipment - Google Patents
Energy recovering method and device of inertial towing equipment Download PDFInfo
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- CN102185369A CN102185369A CN2011101127769A CN201110112776A CN102185369A CN 102185369 A CN102185369 A CN 102185369A CN 2011101127769 A CN2011101127769 A CN 2011101127769A CN 201110112776 A CN201110112776 A CN 201110112776A CN 102185369 A CN102185369 A CN 102185369A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/50—Energy storage in industry with an added climate change mitigation effect
Abstract
The invention relates to an energy recovering method and an energy recovering device of inertial towing equipment. The method and the device can be used for collecting and saving waste energy consumption and unutilized energy consumption in production equipment of an industrial and mining enterprise, realizing secondary utilization of recovered energy, and achieving the purpose of energy saving and consumption reduction. In the method, the energy recovering device consisting of a storage battery pack, a high-capacity battery pack, a charging circuit connected between the high-capacity battery pack and a direct current bus of a frequency convertor, a discharging circuit controlled by a controller and an interference discharging circuit is adopted; the charging circuit is energized when an electric motor passively generates power; the voltage of the direct current bus is clamped within safe ranges by the storage battery pack; the high-capacity battery pack and the storage battery pack jointly participate in energy absorption and energy storage; the energy of the storage battery pack and the high-capacity battery pack participates in power supply of the electric motor when the motor turns into a non-generation state; the controller is used for monitoring the states of charging and discharging of the storage battery pack and preventing the storage battery pack from over charge or over discharge; electric energy is continuously provided by the high-capacity battery pack for illumination of operation above a well and wax resistance and heating of a well head during the working of the electric motor.
Description
Technical field
The present invention relates to a kind of inertia haulage gear energy reclaiming method and device.
Background technology
At present wasting in industrial and mining enterprises' production equipment can and add and not utilize energy consumption, the former as motor rated power greater than the average operate power of equipment, the available energy that the latter such as the generating of beam pumping unit down stroke motor produce.Because the capacity of frequency changer direct current bus filter capacitor is for factors such as costs, its capacity is little, can only play the effect that improves the direct current effect, can not make its magnitude of voltage in safe range in flat peak of long period.When producing regenerative voltage in the passive generating of motor, the voltage of this moment reaches 700-950V, is much higher than the normal voltage value, causes again and again protection and out of service of frequency converter, even has a strong impact on production operation because of overtension scaling loss related device.Though adopt current popular energy feedback device technology; but energy recuperation has little effect; the actual measurement rate of recovery only is 2-6%; only can play the effect of the regeneration overvoltage protector of frequency converter at most, not reach " energy-conservation, consumption reduction " and the requirement of " green novel energy source is used in development " that National Development and Reform Committee proposes far away.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind ofly wasting in industrial and mining enterprises' production equipment can and can not added and utilize energy consumption to be collected and store, realize the second use of recuperated energy, reach the inertia haulage gear energy reclaiming method and the device of energy-saving and cost-reducing purpose.
Technical scheme of the present invention is:
A kind of inertia haulage gear energy reclaiming method, its special character is: adopt by batteries, be connected in parallel on the large bulk capacitance group at batteries two ends, be connected on batteries anodal and and charge-discharge end between charging circuit and by the discharge circuit of controller control and be connected on the energy recycle device that the interference discharge circuit of charge-discharge end constitutes, charge-discharge end is connected on the frequency changer direct current bus, when by the passive generating of the motor of inverter supply being frequency changer direct current bus generation regenerative voltage, the charging circuit conducting, DC bus-bar voltage by the batteries clamper in safe range, large bulk capacitance group and batteries fellowship energy absorption and storage; When motor changes non-generating state over to, sending control signal by controller makes discharging circuit conduction also when large bulk capacitance group both end voltage is higher than frequency changer direct current bus voltage, the voltage of batteries and large bulk capacitance group oppositely ends the rectifier internal body diodes that is connected on the three-phase electricity and forbids three-phase electricity to the frequency converter conveying capacity, and this moment, the energy of batteries and large bulk capacitance group participated in the motor power supply; When the voltage drop of batteries and large bulk capacitance group is low to moderate the output voltage of rectifier, three-phase electricity is to the frequency converter conveying capacity, discharge and recharge the state of losing of winning by the monitoring control devices batteries, when batteries is crossed win, by controller control the win discharging circuit conduction was discharged, served as when losing and discharge circuit is turn-offed, thereby guaranteeing that batteries can not crossed to win loses by controller control; In the motor course of work, the large bulk capacitance group provides electric energy to continue to be used for aboveground operation illumination and the heating of well head wax control.
Above-mentioned inertia haulage gear energy reclaiming method, described energy recycle device reclaims the unit by many groups and forms, every group of large bulk capacitance group two ends of reclaiming in the unit link to each other with emergent inverter by on-line execute diode, a cache accumulator, wherein the on-line execute diode is connected between the positive pole of large bulk capacitance group and cache accumulator, emergent inverter is drawn online power supply output termination three-phase and four-line power consumption equipment, is used for realizing the power supply of part producing, life, office occasion.
Above-mentioned inertia haulage gear energy reclaiming method, described discharge circuit is formed by being connected on anti-reverse diode of first between batteries positive pole and the charge-discharge end and control switch K1, described charging circuit is made up of the control switch K2 and the second anti-reverse diode that are connected between charge-discharge end and the batteries positive pole, and wherein control switch K1, control switch K2 link to each other with controller.
Above-mentioned inertia haulage gear energy reclaiming method, described charging circuit is made up of the diode that is connected between charge-discharge end and the batteries positive pole, described discharge circuit is formed by being connected on batteries control switch K4 anodal and charge-discharge end, and described control switch K4 links to each other with controller.
It is to be made of the discharge resistance and the control switch K3 that are connected between charge-discharge end and the dc bus negative terminal that above-mentioned inertia haulage gear energy reclaiming method, described mistake are won discharge circuit, and described control switch K3 links to each other with controller.
A kind of inertia haulage gear energy recycle device, comprise batteries, charge-discharge end, its special character is: be parallel with the large bulk capacitance group at the batteries two ends, between batteries positive pole and charge-discharge end, be connected to discharge circuit, between charge-discharge end and batteries positive pole, be connected to charging circuit, also be connected to the win discharge circuit in charge-discharge end, the power supply output is drawn at described large bulk capacitance group two ends.
Above-mentioned inertia haulage gear energy recycle device, described batteries, large bulk capacitance group, discharge circuit, charging circuit, cross the win discharge circuit for many groups and form one respectively and reclaim the unit, every group of large bulk capacitance group two ends of reclaiming in the unit link to each other with emergent inverter by on-line execute diode, cache accumulator respectively, wherein the on-line execute diode is connected between the positive pole of large bulk capacitance group and cache accumulator, and emergent inverter is drawn online power supply output.
Above-mentioned inertia haulage gear energy recycle device, described discharge circuit is formed by being connected on anti-reverse diode of first between batteries positive pole and the charge-discharge end and control switch K1, and described charging circuit is made up of the control switch K2 and the second anti-reverse diode that are connected between charge-discharge end and the batteries positive pole.
Above-mentioned inertia haulage gear energy recycle device, described discharge circuit are to be made of the control switch K4 that is connected between batteries positive pole and the charge-discharge end, and described charging circuit is made up of the diode that is connected between charge-discharge end and the batteries positive pole.
Above-mentioned inertia haulage gear energy recycle device, described mistake are won discharge circuit and are made up of the discharge resistance and the control switch K3 that connect.
The present invention can be applicable to the aboveground operation of oil exploitation, centrifuge drippings etc. have the inertia haulage gear, the lighting and the anti-wax deposition heating of well head of the energy that reclaims except that can do aboveground production operation the time, can also many frequency converter The parallel combined be worked by a plurality of on-line execute diodes, the energy that multiple devices are reclaimed is in order to realize part producing, life, the power supply of office occasion etc., as being collected and be stored towards energy under the oil pumper, when oil pumper upstroke state, this energy is offered motor or other purposes, thereby realize that actual effect truly is energy-conservation, i.e. frequency conversion power saving, variable jig frequency economize on electricity, intermittently wait the synthesis energy saving measure that oil economizes on electricity and the down stroke energy utilizes again towards terminal point down.
Description of drawings
Fig. 1 is the circuit block diagram of the present invention's (separate unit operation);
Fig. 2 is circuit theory diagrams of the present invention (corresponding embodiment 1);
Fig. 3 is circuit theory diagrams of the present invention (corresponding embodiment 2);
Fig. 4 is the circuit block diagram of the present invention's (machine operation of many All-China Federation of Taiwan Compatriots).
Among the figure: batteries 1, power supply output 2,3, charge-discharge end 4, discharge circuit 5, charging circuit 6 is crossed win discharge circuit 7, controller 8, frequency converter 9, large bulk capacitance group C, filter capacitor C1, the first anti-reverse diode D1, the second anti-reverse diode D2, diode D3, on-line execute diode D4, control switch K1, the second control switch K2, control switch K3, control switch K4, discharge resistance R1, three-phase rectifier DR1, power output inverter transistor MT, three-phase electricity A, B, C, cache accumulator BAT, emergent inverter EPS, online power supply output EA, EB, EC and EN.
Embodiment
As shown in Figure 1, the present invention includes a batteries 1, charge-discharge end 4, be parallel with large bulk capacitance group C at batteries 1 two ends, between the positive pole of batteries 1 and charge-discharge end 4, be connected to the discharge circuit 5 that the first anti-reverse diode D1 and control switch K1 by series connection constitute, the second control switch K2 and second that is connected between the positive pole of charge-discharge end 4 and batteries 1 by series connection prevents the charging circuit 6 that reverse diode D2 constitutes, be connected to by what the discharge resistance R1 of series connection and control switch K3 formed in charge-discharge end 4 and cross win discharge circuit 7, described mistake connects the dc bus negative terminal when winning the other end use of discharge circuit 7.The power supply output 2,3 that is used for recuperated energy is drawn at the two ends of described large bulk capacitance group C.Described control switch K1, K2, K3 can adopt mechanical switch, electric contact, switching tube, VMOS, IGBT, thyristor etc., and present embodiment is an example to adopt switching tube.
During physical cabling, the control end of control switch K1, K2, K3 can adopt PLC, RTU, single-chip microcomputer etc. with controller 8() link to each other, the input of controller 8 links to each other with the dc bus anode that batteries 1 reaches the frequency converter of being made up of three-phase rectifier DR1, filter capacitor C1, power output inverter transistor MT 9, charge-discharge end 4 links to each other with the dc bus anode of frequency converter 9, and illuminating lamp and/or the well head anti-wax deposition heater of power supply output during with aboveground production operation links to each other.
When the passive generating of motor D (frequency changer direct current bus generation regenerative voltage), controller 8 output control signals make control switch K2 conducting, its energy (DC bus-bar voltage) by batteries 1 clamper in safe range, large bulk capacitance group C and batteries 1 fellowship energy absorption and storage; When motor D changes non-generating state over to, sending control signal by controller 8 makes control switch K1 open-minded, as long as large bulk capacitance group C both end voltage is higher than the output voltage of the three-phase rectifier DRI of frequency converter 9 inside, the voltage of batteries 1 and large bulk capacitance group C oppositely ends rectifier DRI internal body diodes and forbids that three-phase electricity is to frequency converter 9 conveying capacities, have only this moment the energy of batteries 1 and large bulk capacitance group C to participate in motor D power supply, when its voltage drop is low to moderate the output voltage of three-phase rectifier DRI, just allow three-phase electricity A, B, C is to frequency converter 9 conveying capacities, discharge and recharge the state of losing of winning by controller 8 monitoring batteries 1, when batteries 1 is crossed win, by controller 8 controls 7 conductings of win discharge circuit were discharged, served as when losing and made discharge circuit 5 shutoffs, guaranteed that batteries 1 can super-charge super-discharge by controller 8 controls.In the motor D course of work, large bulk capacitance group C provides that electric energy is sustainable to be used for the heating of aboveground operation illumination and well head wax control.
As shown in Figure 2, the present invention includes a batteries 1, charge-discharge end 4, be parallel with large bulk capacitance group C at batteries 1 two ends, between the positive pole of batteries 1 and charge-discharge end 4, be connected to the discharge circuit 5 that constitutes by diode D3, between the positive pole of charge-discharge end 4 and batteries 1, be connected to the charging circuit 6 that constitutes by control switch K4, be connected to by what the discharge resistance R1 of series connection and control switch K3 formed in charge-discharge end 4 and cross win discharge circuit 7, described mistake connects the dc bus negative terminal when winning the other end use of discharge circuit 7.The power supply output 2,3 that is used for recuperated energy is drawn at the two ends of described large bulk capacitance group C.Described control switch K3, K4 can adopt mechanical switch, electric contact, switching tube, VMOS, IGBT, thyristor etc., and present embodiment is an example to adopt switching tube.
During physical cabling, the control end of control switch K3, K4 can adopt PLC, RTU, single-chip microcomputer etc. with controller 8() link to each other, the input of controller 8 links to each other with the dc bus anode that batteries 1 reaches the frequency converter of being made up of three-phase rectifier DR1, filter capacitor C1, power output inverter transistor MT 9, charge-discharge end 4 links to each other with the dc bus of frequency converter 9, and illuminating lamp and/or the well head anti-wax deposition heater of power supply output during with aboveground production operation links to each other.
When the passive generating of motor D (frequency changer direct current bus generation regenerative voltage), controller 8 output control signals make control switch K4 conducting, its energy (DC bus-bar voltage) by batteries 1 clamper in safe range, large bulk capacitance group C and batteries 1 fellowship energy absorption and storage; When motor D changes non-generating state over to, as long as large bulk capacitance group C both end voltage is higher than the output voltage of the three-phase rectifier DRI of frequency converter 9 inside, the voltage of batteries 1 and large bulk capacitance group C oppositely ends rectifier DRI internal body diodes and forbids that three-phase electricity is to frequency converter 9 conveying capacities, have only this moment the energy of batteries 1 and large bulk capacitance group C to participate in motor D power supply, when its voltage drop is low to moderate the output voltage of three-phase rectifier DRI, just allow three-phase electricity to frequency converter 9 conveying capacities, discharge and recharge the state of losing of winning by controller 8 monitoring batteries 1, when batteries 1 is crossed win, by controller 8 controls 7 conductings of win discharge circuit were discharged, served as when losing and made discharge circuit 5 shutoffs, guaranteed that batteries 1 can super-charge super-discharge by controller 8 controls.In the motor D course of work, large bulk capacitance group C provides that electric energy is sustainable to be used for the heating of aboveground operation illumination and well head wax control.
As shown in Figure 4, the present invention includes many groups and reclaim unit, every group is reclaimed the unit as described in embodiment 1, the embodiment 2, respectively by a batteries 1, large bulk capacitance group C, and charging circuit 6, discharge circuit 5 and cross win discharge circuit 7 and form.Described large bulk capacitance group C draws at two ends unit power supply output 2,3, every group of large bulk capacitance group C two ends of reclaiming in the unit link to each other with the emergent inverter EPS that is used to produce the power frequency electricity consumption by on-line execute diode D4, a cache accumulator BAT respectively, wherein on-line execute diode D4 is connected between the positive pole of the positive pole 2 of batteries 1 and cache accumulator BAT, and described emergent inverter EPS output is and is used for online power supply output EA, EB, EC and the EN of recuperated energy.
During physical cabling, the dc bus anode of the input of controller 8 and batteries 1 and the frequency converter 9 is made up of three-phase rectifier DR1, filter capacitor C1, power output inverter transistor MT links to each other, and charge-discharge end 4 is continuous with the dc bus of corresponding frequency converter 9 respectively.Separate unit power supply output 2,3 illuminating lamp and/or the anti-wax deposition heater of well head during with aboveground production operation links to each other, and online power supply output EA, EB, EC and EN connect the three-phase and four-line power consumption equipment.
During work, during the passive generating of motor D (frequency changer direct current bus generation regenerative voltage), its energy (DC bus-bar voltage) by batteries 1 clamper in safe range, large bulk capacitance group C and batteries 1 fellowship energy absorption and storage; When motor D changes non-generating state over to, send control signal by controller 8 and make discharge circuit 5 conductings, as long as large bulk capacitance group C both end voltage is higher than the output voltage of the three-phase rectifier DRI of frequency converter 9 inside, the voltage of batteries 1 and large bulk capacitance group C oppositely ends rectifier DRI internal body diodes and forbids that three-phase electricity is to frequency converter 9 conveying capacities, have only this moment the energy of batteries 1 and large bulk capacitance group C to participate in motor D power supply, when its voltage drop is low to moderate the output voltage of three-phase rectifier DRI, just allow three-phase electricity to frequency converter 9 conveying capacities, discharge and recharge the state of losing of winning by controller 8 monitoring batteries 1, assurance batteries 1 can not crossed to win and lose.In the motor D course of work, large bulk capacitance group C provides that electric energy is sustainable to be used for the heating of aboveground operation illumination and well head wax control; Pass through on-line execute diode D4 simultaneously with many frequency converters 9 on-line executes, voltage from each large bulk capacitance group C is sent on the storage battery BAT by corresponding on-line execute diode D4, like this, originally have or not indefinite desultory electric energy under becoming steady and constant under the effect of cache accumulator BAT and storing, this energy converts the power frequency electricity to and outwards provides " can utilize power supply " by emergent inverter EPS, gives three-phase and four-line power consumption equipment (power supply of production, life, office occasion etc.) power supply.
Claims (10)
1. inertia haulage gear energy reclaiming method, it is characterized in that: adopt by batteries, be connected in parallel on the large bulk capacitance group at batteries two ends, be connected between batteries and the charge-discharge end charging circuit and by the discharge circuit of controller control and be connected on the energy recycle device that the interference discharge circuit of charge-discharge end constitutes, charge-discharge end is connected on the frequency changer direct current bus, when by the passive generating of the motor of inverter supply being frequency changer direct current bus generation regenerative voltage, the charging circuit conducting, DC bus-bar voltage by the batteries clamper in safe range, large bulk capacitance group and batteries fellowship energy absorption and storage; When motor changes non-generating state over to, sending control signal by controller makes discharging circuit conduction also when large bulk capacitance group both end voltage is higher than frequency changer direct current bus voltage, the voltage of batteries and large bulk capacitance group oppositely ends the rectifier internal body diodes that is connected on the three-phase electricity and forbids three-phase electricity to the frequency converter conveying capacity, and this moment, the energy of batteries and large bulk capacitance group participated in the motor power supply; When its voltage drop is low to moderate the output voltage of rectifier, three-phase electricity is to the frequency converter conveying capacity, discharge and recharge the state of losing of winning by the monitoring control devices batteries, when batteries is crossed win, by controller control the win discharging circuit conduction was discharged, served as when losing and discharge circuit is turn-offed, thereby guaranteeing that batteries can not crossed to win loses by controller control; In the motor course of work, the large bulk capacitance group provides electric energy to continue to be used for aboveground operation illumination and the heating of well head wax control.
2. inertia haulage gear energy reclaiming method according to claim 1, it is characterized in that: described energy recycle device reclaims the unit by many groups and forms, every group of large bulk capacitance group two ends of reclaiming in the unit link to each other with emergent inverter by on-line execute diode, a cache accumulator, wherein the on-line execute diode is connected between the positive pole of large bulk capacitance group and cache accumulator, emergent inverter is drawn online power supply output termination three-phase and four-line power consumption equipment, is used for realizing the power supply of part producing, life, office occasion.
3. inertia haulage gear energy reclaiming method according to claim 1 and 2, it is characterized in that: described discharge circuit is formed by being connected on anti-reverse diode of first between batteries positive pole and the charge-discharge end and control switch K1, described charging circuit is made up of the control switch K2 and the second anti-reverse diode that are connected between charge-discharge end and the batteries positive pole, and wherein control switch K1, control switch K2 link to each other with controller.
4. inertia haulage gear energy reclaiming method according to claim 1 and 2, it is characterized in that: described charging circuit is made up of the diode that is connected between charge-discharge end and the batteries positive pole, described discharge circuit is formed by being connected on batteries control switch K4 anodal and charge-discharge end, and described control switch K4 links to each other with controller.
5. inertia haulage gear energy reclaiming method according to claim 1, it is characterized in that: it is to be made of the discharge resistance and the control switch K3 that are connected between charge-discharge end and the dc bus negative terminal that described mistake is won discharge circuit, and described control switch K3 links to each other with controller.
6. inertia haulage gear energy recycle device, comprise batteries, charge-discharge end, it is characterized in that: be parallel with the large bulk capacitance group at the batteries two ends, between batteries positive pole and charge-discharge end, be connected to discharge circuit, between charge-discharge end and batteries positive pole, be connected to charging circuit, also be connected to the win discharge circuit in charge-discharge end, the power supply output is drawn at described large bulk capacitance group two ends.
7. inertia haulage gear energy recycle device according to claim 5, it is characterized in that: described batteries, large bulk capacitance group, discharge circuit, charging circuit, cross the win discharge circuit for many groups and form one respectively and reclaim the unit, every group of large bulk capacitance group two ends of reclaiming in the unit link to each other with emergent inverter by on-line execute diode, a cache accumulator, wherein the on-line execute diode is connected between the positive pole of large bulk capacitance group and cache accumulator, and emergent inverter is drawn online power supply output.
8. according to claim 6 or 7 described inertia haulage gear energy recycle devices, it is characterized in that: described discharge circuit is formed by being connected on anti-reverse diode of first between batteries positive pole and the charge-discharge end and control switch K1, and described charging circuit is made up of the control switch K2 and the second anti-reverse diode that are connected between charge-discharge end and the batteries positive pole.
9. according to claim 6 or 7 described inertia haulage gear energy recycle devices, it is characterized in that: described discharge circuit is to be made of the control switch K4 that is connected between batteries positive pole and the charge-discharge end, and described charging circuit is made up of the diode that is connected between charge-discharge end and the batteries positive pole.
10. inertia haulage gear energy recycle device according to claim 6 is characterized in that: described mistake is won discharge circuit and is made up of the discharge resistance and the control switch K3 that connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101127769A CN102185369B (en) | 2011-05-03 | 2011-05-03 | Energy recovering method and device of inertial towing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101127769A CN102185369B (en) | 2011-05-03 | 2011-05-03 | Energy recovering method and device of inertial towing equipment |
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| CN102185369A true CN102185369A (en) | 2011-09-14 |
| CN102185369B CN102185369B (en) | 2013-10-02 |
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| CN2011101127769A Active CN102185369B (en) | 2011-05-03 | 2011-05-03 | Energy recovering method and device of inertial towing equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3005536A1 (en) * | 2013-05-07 | 2014-11-14 | Sofineco | DEVICE FOR RECOVERING, STORING AND RESTITUTING ELECTRICAL ENERGY FOR A HANDLING DOOR |
| CN108152750A (en) * | 2017-12-26 | 2018-06-12 | 深圳先进技术研究院 | The battery charging and discharging parameter identification method and system of a kind of electric vehicle |
| CN108574316A (en) * | 2017-08-03 | 2018-09-25 | 中国国际海运集装箱(集团)股份有限公司 | Carry control system |
| CN113873836A (en) * | 2021-09-24 | 2021-12-31 | 珠海格力电器股份有限公司 | Temperature and humidity control method and device of frequency converter, frequency converter and air conditioning unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR3005536A1 (en) * | 2013-05-07 | 2014-11-14 | Sofineco | DEVICE FOR RECOVERING, STORING AND RESTITUTING ELECTRICAL ENERGY FOR A HANDLING DOOR |
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| CN108574316A (en) * | 2017-08-03 | 2018-09-25 | 中国国际海运集装箱(集团)股份有限公司 | Carry control system |
| CN108152750A (en) * | 2017-12-26 | 2018-06-12 | 深圳先进技术研究院 | The battery charging and discharging parameter identification method and system of a kind of electric vehicle |
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| CN113873836A (en) * | 2021-09-24 | 2021-12-31 | 珠海格力电器股份有限公司 | Temperature and humidity control method and device of frequency converter, frequency converter and air conditioning unit |
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| Publication number | Publication date |
|---|---|
| CN102185369B (en) | 2013-10-02 |
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