CN112737011A - Energy-saving method and system for charger and storage medium - Google Patents
Energy-saving method and system for charger and storage medium Download PDFInfo
- Publication number
- CN112737011A CN112737011A CN202011481035.3A CN202011481035A CN112737011A CN 112737011 A CN112737011 A CN 112737011A CN 202011481035 A CN202011481035 A CN 202011481035A CN 112737011 A CN112737011 A CN 112737011A
- Authority
- CN
- China
- Prior art keywords
- charging
- module group
- preset
- power
- module
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 238000011217 control strategy Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 230000006872 improvement Effects 0.000 description 9
- 230000007774 longterm Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20945—Thermal management, e.g. inverter temperature control
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention discloses an energy-saving method, an energy-saving system and a storage medium for a direct current charger, wherein the energy-saving method comprises the following steps: acquiring the charging required power of all charging guns; controlling a power distribution switch to switch in an idle charging module group corresponding to the requirement to the charging gun bus; controlling a power switch to start the charging module group and the fan module group corresponding to the module group; and acquiring the required charging power periodically, controlling the charging module group to stop outputting and switching out the bus when the difference between the required power and the total output power of the switched module group is not less than the power sum of the single group or the plurality of groups of charging module groups, and finally disconnecting the switched-out charging module group and the power supply of the corresponding fan module group to enable the switched-out charging module group and the power supply of the corresponding fan module group to enter an idle and complete energy-saving state. The charging module and the exhaust fan of the direct current charger cannot be in a long-time standby power consumption state, the total noise of the fan is reduced, and the direct current charger is suitable for a direct current charging system with multiple guns or multiple charging module groups.
Description
Technical Field
The invention relates to the technical field of charging equipment, in particular to an energy-saving method and system for a charger and a storage medium.
Background
The multi-gun power distribution direct current charging system is more and more popular, and the output power of the whole machine and the number of charging guns also show more and more trends. As energy-using equipment, only national standards currently require that the standby power consumption of a direct current charger cannot be greater than 50 × N watts (N is the number of charging interfaces), and the main standby power consumption comes from a charging module and an exhaust fan. For the standby power consumption control of a high-power charger (generally more than 90kW), an alternating current contactor is arranged on the input power supply side, and the power supply of all modules and fans is turned off during standby. For a high-power charger, the size of the single or two alternating current contactors is large, the cost is high, the fault tolerance is avoided, and the maintenance is inconvenient.
In addition, the national standard does not make a regulation on the loss in the charging operation, so as long as the charging activity exists in the current charger, all charging modules and fans are in the power-on state, and as the multi-gun power distribution charging system with higher power (such as 360kW and 420kW) is adopted, a passenger vehicle is frequently charged, the highest power is less than 60kW, or the required resources are smaller when long-term trickle charging is carried out, because the exhaust system and the charging power of the direct-current charger are designed according to the full load, other charging module groups are still in the consumption of long-term standby power consumption, all fans are in high-speed operation, and the fan power consumption and the noise are higher.
Disclosure of Invention
The invention aims to provide an energy-saving method, an energy-saving system and a storage medium for a charger, and aims to solve the problems that in the prior art, a charging module group of the charger is in long-term standby power consumption, all fans are in high-speed operation, and the power consumption and the noise of the fans are high.
In order to solve the above problems, the present invention provides an energy saving method for a charger, where the energy saving method includes:
acquiring initial charging required power of all charging guns;
switching in a charging module group with the number of idle preset charging modules to a bus of the charging gun according to the initial charging demand power until no idle module group can be switched in or the total output power of the switched-in module group reaches the initial charging demand power, and defining the sum of the total output power of the switched-in charging module group of the charging gun as a first preset demand power threshold;
starting the control power supply of the switched charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage;
during charging, acquiring the charging demand power of all charging guns according to a first preset time period, and judging the charging demand power change value corresponding to the charging guns;
and if the reduction value of the first preset requirement threshold value is greater than the sum of the output power of one or more charging module groups switched corresponding to the charging gun, controlling the voltage and current output of the charging module groups to be reduced to zero, controlling the switches corresponding to the charging module groups to switch the charging module groups out of the direct current gun bus, and disconnecting the charging module groups and the power input switches of the corresponding bound exhaust fan modules to enable the charging module groups and the corresponding bound exhaust fan modules to enter a complete energy-saving state to become idle module groups and idle exhaust fan modules.
As a further improvement of the present invention, after the step of starting the control power supply switched into the charging module group and the fan module group corresponding to the preset number of fans and bound with the charging module group and entering the charging output control stage, the method further includes:
acquiring the real-time charging required power at intervals of a first preset time length, and judging whether the real-time charging required power is greater than a first preset required power threshold value or not;
if yes, switching in a charging module group with the number of idle preset charging modules to a bus of the charging gun according to the initial charging demand power until no idle module group can be switched in or the total output power of the switched-in module group reaches the initial charging demand power, and defining the sum of the total output power of the switched-in charging module group of the charging gun as a first preset demand power threshold;
and starting the control power supply of the switched charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage.
As a further improvement of the present invention, after the step of starting the control power supply switched into the charging module group and the fan module group corresponding to the preset number of fans and bound with the charging module group and entering the charging output control stage, the method further includes:
acquiring the real-time temperature of the monitoring area in the charger at intervals of a second preset time length, and judging whether the real-time temperature reaches a first preset temperature threshold value;
and if the real-time temperature reaches the first preset threshold, increasing the fan rotating speed of the started fan module group according to a first preset proportion.
As a further improvement of the present invention, after the step of increasing the rotation speed of the fan module group according to a first preset proportion if the real-time temperature reaches the first preset temperature threshold, the method further includes:
if the rotating speed of the fan module group reaches the maximum and still exceeds a first temperature preset threshold, additionally and sequentially starting other idle fan module groups;
acquiring the real-time temperature, and judging whether the real-time temperature reaches a second preset temperature threshold value;
if yes, the charging module group and the fan module group are all closed according to a preset control strategy or the output power of all the charging modules is reduced in proportion to meet the requirement of reducing the temperature, and alarm information is generated and sent to an external receiving end.
As a further improvement of the present invention, after the step of obtaining the real-time temperature of the internal temperature monitoring area of the charger at a second preset time interval and determining whether the real-time temperature reaches a first preset threshold, the method further includes:
and if the real-time temperature does not reach the first temperature preset threshold value, reducing the rotating speed of the fan module group according to a second preset proportion.
In order to solve the above problem, the present invention further provides an energy saving system for a charger, where the energy saving system includes:
the first acquisition module is used for acquiring the initial charging required power of all the charging guns;
the first switching module is used for switching in a charging module group with the number of idle preset charging modules to a bus of the charging gun according to the initial charging demand power until the total output power of the modules which can be switched in or switched into the module group without the idle module group reaches the initial charging demand power, and the sum of the total output power of the switched charging module groups of the charging gun is defined as a first preset demand power threshold;
the first starting module is used for starting the control power supply switched into the charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage;
the first judgment module is used for acquiring the charging demand power of all charging guns according to a first preset time period in charging and judging the charging demand power change value corresponding to the charging guns;
and the first control module is used for controlling the voltage and current output of the charging module group to be zero and controlling the switch corresponding to the charging module group to switch the charging module group out of the direct current gun bus if the reduction value of the first preset demand threshold is greater than the sum of the output power of one or more charging module groups switched corresponding to the charging gun, so that the charging module groups and the power input switches of the corresponding bound exhaust fan modules are disconnected, the charging module groups and the power input switches of the corresponding bound exhaust fan modules are enabled to enter a complete energy-saving state, and the charging module groups and the idle exhaust fan modules are formed.
As a further improvement of the present invention, the energy saving system further comprises:
the second acquisition module is used for acquiring the real-time charging required power at intervals of a first preset time length and judging whether the real-time charging required power is greater than a first preset required power threshold value or not;
the second switching module is used for switching in a charging module group with the number of idle preset charging modules to a bus of the charging gun according to the initial charging demand power if the real-time charging demand power is larger than the first preset demand power threshold value until no idle module group can be switched in or the total output power of the switched module group reaches the initial charging demand power, and defining the sum of the total output power of the switched charging module group of the charging gun as the first preset demand power threshold value;
and the second starting module is used for starting the control power supply switched into the charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage.
As a further improvement of the present invention, the energy saving system further comprises:
the second judgment module is used for acquiring the real-time temperature of the monitoring area in the charger at intervals of a second preset time length and judging whether the real-time temperature reaches a first preset temperature threshold value;
and the second starting module is used for increasing the fan rotating speed of the started power supply fan module group according to a first preset proportion if the real-time temperature reaches the first preset threshold value.
As a further improvement of the present invention, the energy saving system further comprises:
the third starting module is used for additionally and sequentially starting the rest idle fan module groups if the rotating speed of the fan module group reaches the maximum and still exceeds the first temperature preset threshold;
the third acquisition module is used for acquiring the real-time temperature and judging whether the real-time temperature reaches a second preset temperature threshold value;
and the closing module is used for completely closing the charging module group and the fan module group or reducing the output power of all the charging modules in proportion to meet the requirement of reducing the temperature according to a preset control strategy if the real-time temperature reaches a second temperature preset threshold value, and generating alarm information to be sent to an external receiving end.
As a further improvement of the present invention, the energy saving system further comprises:
and the second control module is used for reducing the rotating speed of the fan module group according to a second preset proportion if the real-time temperature does not reach the first temperature preset threshold value.
In order to solve the above problem, the present invention also provides a storage medium, on which program data are stored, which when executed by a processor implement the steps in the energy saving method of the charger as described above.
According to the invention, the required charging power is obtained periodically, when the difference between the required power and the total output power of the switched module group is not less than the total power of the single or multiple groups of charging module groups, the charging module group is controlled to stop outputting and switch out the bus, and finally, the switched-in and switched-out charging module group and the power supply of the corresponding fan module group are disconnected, so that the charging module group and the corresponding fan module group enter an idle and complete energy-saving state. The charging module and the exhaust fan of the direct current charger are ensured not to be in a long-time standby power consumption state, the noise of the fan is reduced, and the direct current charging system is suitable for a direct current charging system with multiple guns or multiple charging module groups.
Drawings
Fig. 1 is a schematic flow chart illustrating steps of an embodiment of an energy saving method for a charger according to the present invention;
fig. 2 is a flow step schematic diagram of an embodiment of an energy saving method for a charger according to the present invention;
FIG. 3 is a flow chart illustrating steps of an embodiment of an energy saving method for a charger according to the present invention;
fig. 4 is a functional module schematic diagram of an embodiment of an energy saving system for a charger according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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.
Fig. 1 and fig. 2 show an embodiment of an energy saving method of a charger of the present invention, and referring to fig. 1, in this embodiment, the energy saving method includes the following steps:
in step S1, the initial charging demand power of all the charging guns is obtained.
And step S2, switching in the charging module groups with the preset number of idle charging modules to the bus of the charging gun according to the initial charging demand power until the total output power of no idle module group can be switched in or the switched module groups reaches the initial charging demand power, and defining the sum of the total output power of the switched charging module groups of the charging gun as a first preset demand power threshold.
And step S3, starting the control power supply switched into the charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage.
And step S4, in the charging process, acquiring the charging demand power of all the charging guns according to a first preset duration period, judging the charging demand power change value corresponding to the charging guns, and if the reduction value of the first preset demand threshold value is larger than the sum of the output powers of one or more charging module groups switched corresponding to the charging guns, executing step S5.
And step S5, controlling the voltage and current output of the charging module group to be reduced to zero, controlling the corresponding switch of the charging module group to switch the charging module group out of the direct current gun bus, and disconnecting the charging module group and the power input switch of the exhaust fan module group correspondingly bound to enable the charging module group and the exhaust fan module group to enter a complete energy-saving state to become an idle module group and an idle exhaust fan module group.
Specifically, referring to fig. 2, after step S3, the method further includes:
step S40, obtaining the real-time charging demand power at intervals of a first preset duration, determining whether the real-time charging demand power is greater than a first preset demand power threshold, and if so, executing step S50.
And step S50, switching in the charging module groups with the preset number of idle charging modules to the bus of the charging gun according to the initial charging demand power until the total output power of no idle module group can be switched in or the switched module groups reaches the initial charging demand power, and defining the sum of the total output power of the switched charging module groups of the charging gun as a first preset demand power threshold.
And step S60, starting the control power supply switched into the charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage.
In this embodiment, the required charging power is obtained periodically, and when the difference between the required power and the total output power of the switched module group is not less than the total power of the single or multiple charging module groups, the charging module group is controlled to stop outputting and switch out the bus, and finally the switched-in and switched-out charging module group and the power supply of the corresponding fan module group are disconnected, so that the charging module group and the corresponding fan module group enter an idle and complete energy-saving state. The charging module and the exhaust fan of the direct current charger are ensured not to be in a long-time standby power consumption state, the noise of the fan is reduced, and the direct current charging system is suitable for a direct current charging system with multiple guns or multiple charging module groups.
In order to prevent the temperature of the charging module group and the fan from exceeding the standard, on the basis of the above embodiment, referring to fig. 3, in this embodiment, after step S3, the method further includes:
and S400, acquiring the real-time temperature of the monitoring area in the charger at intervals of a second preset time length, judging whether the real-time temperature reaches a first preset temperature threshold value, and executing S500 if the real-time temperature reaches the first preset threshold value.
Step S500, increasing the fan rotating speed of the started fan module group according to a first preset proportion.
Further, after step S400, the method further includes:
step S600, if the rotation speed of the fan module set reaches the maximum and still exceeds the first preset temperature threshold, additionally and sequentially turning on the remaining idle fan module sets.
Step S700, acquiring the real-time temperature, judging whether the real-time temperature reaches a second preset temperature threshold value, and if so, executing step S800;
step S800, the charging module group and the fan module group are completely closed according to a preset control strategy or the output power of all the charging modules is reduced in proportion to meet the requirement of reducing the temperature, and alarm information is generated and sent to an external receiving end.
And S900, if the real-time temperature does not reach the first preset temperature threshold, reducing the rotating speed of the fan module group according to a second preset proportion.
Preferably, the second preset proportion may be decreased according to the proportion of the temperature exceeding the second preset threshold.
In the embodiment, the real-time temperature of the charging module group is monitored, and the rotating speed of the fan is increased or reduced or the additional fan is turned on or off according to the interval of the real-time temperature, so that the real-time temperature of the charging module group is within a preset range, and the service life and the stability of the charger are ensured.
Fig. 3 shows an embodiment of the energy saving system for a charger according to the present invention, and referring to fig. 3, in this embodiment, the energy saving system includes a first obtaining module 1, a first switching module 2, a first starting module 3, a first judging module 4, and a first control module 5.
The first obtaining module 1 is used for obtaining the initial charging required power of all charging guns; the first switching module 2 is used for switching in a charging module group with the number of idle preset charging modules to a bus of the charging gun according to the initial charging demand power until no idle module group can be switched in or the total output power of the switched module group reaches the initial charging demand power, and defining the sum of the total output power of the switched charging module group of the charging gun as a first preset demand power threshold; the first starting module 3 is used for starting the control power supply switched into the charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage; the first judgment module 4 is used for acquiring the charging demand power of all the charging guns according to a first preset time period in the charging process, and judging the charging demand power change value corresponding to the charging guns; the first control module 5 is configured to control the voltage and current outputs of the charging module groups to be reduced to zero, control switches corresponding to the charging module groups to switch the charging module groups out of the dc gun bus, and disconnect the charging module groups and power input switches corresponding to the bound exhaust fan modules to enable the charging module groups and the bound exhaust fan modules to enter a complete energy saving state to become an idle module group and an idle exhaust fan module if a reduction value of the first preset demand threshold is greater than a sum of output powers of one or more of the charging module groups switched corresponding to the charging gun.
Further, the energy saving system further comprises a second obtaining module 6, a second switching module 7 and a second starting module 8.
The second obtaining module 6 is configured to obtain the real-time charging demand power at intervals of a first preset duration, and determine whether the real-time charging demand power is greater than a first preset demand power threshold; the second switching module 7 is configured to, if the real-time charging demand power is greater than the first preset demand power threshold, switch in a charging module group with a preset number of idle charging modules to a bus of the charging gun according to the initial charging demand power until no idle module group can be switched in or the total output power of the switched module group reaches the initial charging demand power, and define the sum of the total output powers of the switched charging module groups of the charging gun as the first preset demand power threshold; the second starting module 8 is used for starting the control power supply switched into the charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage.
Further, the energy saving system further comprises a second judging module 9 and a second starting module 10.
The second judging module 9 is configured to obtain a real-time temperature of a monitoring area inside the charger at intervals of a second preset time length, and judge whether the real-time temperature reaches a first preset temperature threshold; the second starting module 10 is configured to increase the fan rotation speed of the powered fan module set according to a first preset ratio if the real-time temperature reaches a first preset threshold.
Further, the energy saving system further comprises a third starting module 11, a third obtaining module 12 and a closing module 13.
The third opening module 11 is configured to additionally sequentially open the remaining idle fan module groups if the rotation speed of the fan module group reaches the maximum and still exceeds the first preset temperature threshold;
the third obtaining module 12 is configured to obtain the real-time temperature, and determine whether the real-time temperature reaches a second preset temperature threshold;
and the closing module 13 is configured to, if the real-time temperature reaches a second preset temperature threshold, completely close the charging module group and the fan module group according to a preset control strategy or reduce the output power of all the charging modules in proportion to meet the requirement of reducing the temperature, and generate alarm information to send to an external receiving end.
Further, the economizer system also includes a second control module 14.
The second control module 14 is configured to reduce the rotation speed of the fan module set according to a second preset ratio if the real-time temperature does not reach the first preset temperature threshold.
The invention also provides a storage medium on which program data are stored, and when the program data are executed by a processor, the steps in the energy-saving method of the charger are realized.
The storage medium in this embodiment may be a read-only memory, a static storage device capable of storing static information and instructions, a random access memory, or a dynamic storage device capable of storing information and instructions, and may also be an electrically erasable programmable read-only memory, a read-only optical disc, or other optical disc storage, magnetic disc storage medium, or other magnetic storage device.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-based embodiments, since they are substantially similar to the method embodiments, detailed descriptions thereof are omitted, and reference may be made to some descriptions of the method embodiments for relevant points.
The embodiments of the present invention have been described in detail, but the present invention is only exemplary and is not limited to the embodiments described above. It will be apparent to those skilled in the art that any equivalent modifications or substitutions can be made within the scope of the present invention, and thus, equivalent changes and modifications, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.
Claims (11)
1. An energy-saving method for a direct current charger is characterized by comprising the following steps:
acquiring initial charging required power of all charging guns;
switching in a charging module group with the number of idle preset charging modules to a bus of the charging gun according to the initial charging demand power until no idle module group can be switched in or the total output power of the switched-in module group reaches the initial charging demand power, and defining the sum of the total output power of the switched-in charging module group of the charging gun as a first preset demand power threshold;
starting the control power supply of the switched charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage;
during charging, acquiring the charging demand power of all charging guns according to a first preset time period, and judging the charging demand power change value corresponding to the charging guns;
and if the reduction value of the first preset requirement threshold value is greater than the sum of the output power of one or more charging module groups switched corresponding to the charging gun, controlling the voltage and current output of the charging module groups to be reduced to zero, controlling the switches corresponding to the charging module groups to switch the charging module groups out of the direct current gun bus, and disconnecting the charging module groups and the power input switches of the corresponding bound exhaust fan modules to enable the charging module groups and the corresponding bound exhaust fan modules to enter a complete energy-saving state to become idle module groups and idle exhaust fan modules.
2. The energy saving method according to claim 1, wherein the step of starting the control power supply for the switched-in charging module group and the fan module group with the corresponding preset number of fans bound with the charging module group, and entering a charging output control phase further comprises:
acquiring the real-time charging required power at intervals of a first preset time length, and judging whether the real-time charging required power is greater than a first preset required power threshold value or not;
if yes, switching in a charging module group with the number of idle preset charging modules to a bus of the charging gun according to the initial charging demand power until no idle module group can be switched in or the total output power of the switched-in module group reaches the initial charging demand power, and defining the sum of the total output power of the switched-in charging module group of the charging gun as a first preset demand power threshold;
and starting the control power supply of the switched charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage.
3. The energy saving method according to claim 1, wherein the step of starting the control power supply for the switched-in charging module group and the fan module group with the corresponding preset number of fans bound with the charging module group, and entering a charging output control phase further comprises:
acquiring the real-time temperature of the monitoring area in the charger at intervals of a second preset time length, and judging whether the real-time temperature reaches a first preset temperature threshold value;
and if the real-time temperature reaches the first preset threshold, increasing the fan rotating speed of the started fan module group according to a first preset proportion.
4. The energy saving method according to claim 3, wherein after the step of increasing the rotation speed of the fan module set according to a first preset ratio if the real-time temperature reaches the first preset temperature threshold, the method further comprises:
if the rotating speed of the fan module group reaches the maximum and still exceeds a first temperature preset threshold, additionally and sequentially starting other idle fan module groups;
acquiring the real-time temperature, and judging whether the real-time temperature reaches a second preset temperature threshold value;
if yes, the charging module group and the fan module group are all closed according to a preset control strategy or the output power of all the charging modules is reduced in proportion to meet the requirement of reducing the temperature, and alarm information is generated and sent to an external receiving end.
5. The energy saving method according to claim 3, wherein after the step of obtaining the real-time temperature of the internal temperature monitoring area of the charger at a second preset time interval and judging whether the real-time temperature reaches a first preset threshold value, the method further comprises:
and if the real-time temperature does not reach the first temperature preset threshold value, reducing the rotating speed of the fan module group according to a second preset proportion.
6. An energy-saving system for a charger, characterized in that the energy-saving system comprises:
the first acquisition module is used for acquiring the initial charging required power of all the charging guns;
the first switching module is used for switching in a charging module group with the number of idle preset charging modules to a bus of the charging gun according to the initial charging demand power until the total output power of the modules which can be switched in or switched into the module group without the idle module group reaches the initial charging demand power, and the sum of the total output power of the switched charging module groups of the charging gun is defined as a first preset demand power threshold;
the first starting module is used for starting the control power supply switched into the charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage;
the first judgment module is used for acquiring the charging demand power of all charging guns according to a first preset time period in charging and judging the charging demand power change value corresponding to the charging guns;
and the first control module is used for controlling the voltage and current output of the charging module group to be zero and controlling the switch corresponding to the charging module group to switch the charging module group out of the direct current gun bus if the reduction value of the first preset demand threshold is greater than the sum of the output power of one or more charging module groups switched corresponding to the charging gun, so that the charging module groups and the power input switches of the corresponding bound exhaust fan modules are disconnected, the charging module groups and the power input switches of the corresponding bound exhaust fan modules are enabled to enter a complete energy-saving state, and the charging module groups and the idle exhaust fan modules are formed.
7. The economizer system of claim 6 further comprising:
the second acquisition module is used for acquiring the real-time charging required power at intervals of a first preset time length and judging whether the real-time charging required power is greater than a first preset required power threshold value or not;
the second switching module is used for switching in a charging module group with the number of idle preset charging modules to a bus of the charging gun according to the initial charging demand power if the real-time charging demand power is larger than the first preset demand power threshold value until no idle module group can be switched in or the total output power of the switched module group reaches the initial charging demand power, and defining the sum of the total output power of the switched charging module group of the charging gun as the first preset demand power threshold value;
and the second starting module is used for starting the control power supply switched into the charging module group and the fan module group which is bound with the charging module group and corresponds to the preset number of fans, and entering a charging output control stage.
8. The economizer system of claim 6 further comprising:
the second judgment module is used for acquiring the real-time temperature of the monitoring area in the charger at intervals of a second preset time length and judging whether the real-time temperature reaches a first preset temperature threshold value;
and the second starting module is used for increasing the fan rotating speed of the started power supply fan module group according to a first preset proportion if the real-time temperature reaches the first preset threshold value.
9. The economizer system of claim 8 further comprising:
the third starting module is used for additionally and sequentially starting the rest idle fan module groups if the rotating speed of the fan module group reaches the maximum and still exceeds the first temperature preset threshold;
the third acquisition module is used for acquiring the real-time temperature and judging whether the real-time temperature reaches a second preset temperature threshold value;
and the closing module is used for completely closing the charging module group and the fan module group or reducing the output power of all the charging modules in proportion to meet the requirement of reducing the temperature according to a preset control strategy if the real-time temperature reaches a second temperature preset threshold value, and generating alarm information to be sent to an external receiving end.
10. The economizer system of claim 8 further comprising:
and the second control module is used for reducing the rotating speed of the fan module group according to a second preset proportion if the real-time temperature does not reach the first temperature preset threshold value.
11. A storage medium, on which program data are stored, characterized in that, when being executed by a processor, the program data implement the steps in the energy saving method of the charger according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011481035.3A CN112737011B (en) | 2020-12-15 | 2020-12-15 | Energy saving method, system and storage medium for charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011481035.3A CN112737011B (en) | 2020-12-15 | 2020-12-15 | Energy saving method, system and storage medium for charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112737011A true CN112737011A (en) | 2021-04-30 |
| CN112737011B CN112737011B (en) | 2024-01-09 |
Family
ID=75602393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011481035.3A Active CN112737011B (en) | 2020-12-15 | 2020-12-15 | Energy saving method, system and storage medium for charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112737011B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895273A (en) * | 2021-08-31 | 2022-01-07 | 深圳市车电网络有限公司 | Charging method of direct current charging system and direct current charging system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457335A (en) * | 2013-09-17 | 2013-12-18 | 山东鲁能智能技术有限公司 | Intelligent integrated charger device for electric automobile |
| CN106253286A (en) * | 2015-06-11 | 2016-12-21 | 苏州宝时得电动工具有限公司 | Power transfer and control method, electric power system |
| CN110103746A (en) * | 2018-01-05 | 2019-08-09 | 郑州宇通客车股份有限公司 | A kind of matrixing network formula charger system |
| CN110861518A (en) * | 2019-12-25 | 2020-03-06 | 思源清能电气电子有限公司 | Intelligent heat dissipation control method for multi-gun high-power direct-current charging pile |
| CN111162343A (en) * | 2019-12-24 | 2020-05-15 | 成都广通汽车有限公司 | Heat dissipation method and device for power battery in vehicle, storage medium and processor |
-
2020
- 2020-12-15 CN CN202011481035.3A patent/CN112737011B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457335A (en) * | 2013-09-17 | 2013-12-18 | 山东鲁能智能技术有限公司 | Intelligent integrated charger device for electric automobile |
| CN106253286A (en) * | 2015-06-11 | 2016-12-21 | 苏州宝时得电动工具有限公司 | Power transfer and control method, electric power system |
| CN110103746A (en) * | 2018-01-05 | 2019-08-09 | 郑州宇通客车股份有限公司 | A kind of matrixing network formula charger system |
| CN111162343A (en) * | 2019-12-24 | 2020-05-15 | 成都广通汽车有限公司 | Heat dissipation method and device for power battery in vehicle, storage medium and processor |
| CN110861518A (en) * | 2019-12-25 | 2020-03-06 | 思源清能电气电子有限公司 | Intelligent heat dissipation control method for multi-gun high-power direct-current charging pile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895273A (en) * | 2021-08-31 | 2022-01-07 | 深圳市车电网络有限公司 | Charging method of direct current charging system and direct current charging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112737011B (en) | 2024-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110962693A (en) | Fuel cell automobile energy management method based on finite state layering | |
| CN110341543B (en) | High-voltage power-off control method, alternating-current charging system and electric automobile | |
| CN112193126B (en) | Charging control method and system for electric automobile | |
| CN108808762B (en) | Power supply control system | |
| KR20160135646A (en) | Battery module with cell balancing function and Battery System having that battery module | |
| CN110661278A (en) | Energy storage air conditioning system and control method and control device thereof | |
| AU2020333583B2 (en) | Direct current load response control method and device, and a direct current electric appliance | |
| WO2014154167A1 (en) | Method and system for controlling electric power supply of vehicle and vehicle comprising the system | |
| CN111725879A (en) | Light-storage combined power supply mobile energy storage system and control method thereof | |
| CN112737011B (en) | Energy saving method, system and storage medium for charger | |
| CN218415833U (en) | Household energy storage generator access system | |
| CN109760517B (en) | Garbage truck, loading system of garbage truck and control method of loading system | |
| CN111370738A (en) | Self-adaptive load control system and method for fuel cell power generation system | |
| CN110783989A (en) | Control method for parallel operation of battery packs and related device | |
| CN116080478A (en) | Battery charge and discharge control method and device, battery equalization equipment and storage medium | |
| KR20110075152A (en) | Battery management method using learning dark current | |
| CN115257458A (en) | Control method and control device of DCDC converter and vehicle | |
| CN113872196A (en) | Air conditioning system power supply control method and device and air conditioning system | |
| CN113824182A (en) | Passive equalization method and passive equalization system with self-variable period | |
| CN115871524A (en) | Control method and device for fuel cell module of vehicle and vehicle | |
| KR20210085095A (en) | Backup power supply device for precise sensor | |
| CN213027539U (en) | Distribution circuit and distributor | |
| EP4286209A1 (en) | Power replenishment wake-up apparatus and method for low-voltage battery | |
| CN210003460U (en) | of increase motor heat dissipation function drags two frequency conversion air compressor machine systems | |
| CN116388138B (en) | Power consumption control method and device of energy system and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |