CN108879850B - Power distribution device and method - Google Patents
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- CN108879850B CN108879850B CN201810757002.3A CN201810757002A CN108879850B CN 108879850 B CN108879850 B CN 108879850B CN 201810757002 A CN201810757002 A CN 201810757002A CN 108879850 B CN108879850 B CN 108879850B
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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
- 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
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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
- 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
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T90/10—Technologies relating to charging of electric vehicles
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Abstract
The invention provides a power distribution device and a power distribution method. According to the power distribution device and the power distribution method, one or more switch module groups contained in one or more power regulating units respectively contained in two power distribution units which are connected in parallel and are connected in parallel can be controlled to be closed/opened according to the number of the remaining power modules which are not called in the same power module group and the number of the power modules in the same power module group, the maximum output power output by one power distribution unit and the required power transmitted by one or more power output ports. The total power that function distribution device can provide at this moment is the sum of the maximum output power that two power distribution units output, under the circumstances of guaranteeing the charging efficiency, charges for more equipment of waiting to charge simultaneously, when single equipment charges, can more high-efficient completion charge to two power distribution units can be simultaneously for the equipment of waiting to charge that the demand of charging is greater than the maximum power that single power distribution unit can provide.
Description
Technical Field
The invention relates to the technical field of charging, in particular to a power distribution device and a power distribution method.
Background
With the improvement of society and the enhancement of environmental awareness, the electric automobile is gradually favored because the vehicle-mounted power supply is used as power, and the problems of environmental pollution caused by the emission of tail gas of a fuel automobile, high energy consumption and the like can be solved. The charging problem of the electric vehicle is a very concern of people, and is related to the popularization and the promotion of the electric vehicle. In recent years, the characteristics of high power, rapidness, group charging and the like increasingly become the basic requirements of people on charging piles. The traditional direct current module and the power distribution unit are both arranged in the cabinet, and due to the limitation of the size of the cabinet structure, the matrix structure of single multi-power module input and multi-power distribution output cannot be made to any size (the interior of the cabinet is composed of power modules, PDU (protocol data unit), connecting cables and the like), so that the charging power which can be provided by a single cabinet is small, the charging strategy is not flexible enough, and meanwhile, the requirements of few devices to be charged and poor device expansibility can be met.
Disclosure of Invention
It is therefore an objective of the present invention to provide a power distribution apparatus and method to improve the above-mentioned problems.
In a first aspect, an embodiment of the present invention provides a power distribution apparatus, where the power distribution apparatus includes:
the power module group comprises a plurality of power modules which are connected with power supply equipment and are connected in parallel;
each power module group is connected with a power distribution unit, and each power distribution unit comprises a plurality of power regulation units connected in parallel;
each power regulating unit comprises a power output port and switch module groups which are the same with the power modules in the same group of power module groups in number and are connected in parallel, each switch module group is electrically connected with the corresponding power output port, and each switch module group is connected with one of the power modules in series;
at least one power regulating unit belonging to one power distribution unit is connected in parallel with at least one power regulating unit belonging to another power distribution unit through a parallel connection line;
and the central control equipment is electrically connected with each switch module group and each power output port, and is used for controlling the on/off of one or more switch module groups respectively contained in one or more power regulating units contained in two power distribution units with power output ports connected in parallel according to the number of the remaining power modules of the same power module group which are not called, the maximum output power which can be output by a plurality of power modules of the same power module group to one power distribution unit and the required power transmitted by one or more power output ports.
In a second aspect, an embodiment of the present invention further provides a power allocation method, which is applied to the foregoing power allocation apparatus, where the power allocation method includes:
identifying the number of remaining un-invoked power modules of the same group of power modules;
and controlling one or more switch module groups contained in one or more power regulating units respectively contained in two power distributing units with power output ports connected in parallel to be switched on/off according to the number of the remaining power modules which are not called in the same power module group, the maximum output power which can be output by one power distributing unit and the required power transmitted by one or more power output ports of a plurality of power modules in the same power module group.
Compared with the prior art, the power distribution device and the power distribution method provided by the invention can control the on/off of one or more switch block groups respectively contained in one or more power regulating units contained in two power distribution units which are connected in parallel by the power modules of the same power module group according to the number of the power modules which are not called and remain in the same power module group, the maximum output power output by one power distribution unit and the required power transmitted by one or more power output ports. The total power that function distribution device can provide at this moment is the sum of the maximum output power that two power distribution units output, under the circumstances of guaranteeing charging efficiency, can charge for more equipment of waiting to charge simultaneously to when single equipment charges, can the completion of higher efficiency charge, and two power distribution units can realize the intelligent transfer of power, can be simultaneously for the equipment of waiting to charge that the demand of charging is greater than the maximum power that single power distribution unit can provide.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a circuit connection block diagram of a power distribution apparatus according to an embodiment of the present invention;
fig. 2 is a circuit diagram of a power distribution unit according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a connection relationship between a first power distribution unit and a second power distribution unit according to an embodiment of the present invention;
fig. 4 is a flowchart of a power allocation method according to an embodiment of the present invention.
Icon: 101-a power module; 102-a power supply network; 103-a power distribution unit; 104-a power conditioning unit; 105-a switch module group; 106-power output port; 107-charging gun.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, an embodiment of the invention provides a power distribution apparatus, including:
two power module groups, each power module group including a plurality of power modules 101 connected to the power supply apparatus and connected in parallel with each other.
The power supply device may use the power supply network 102. In this embodiment, the number of the power modules 101 is not limited to 12. The power module 101 is used to convert the dc power provided by the power supply network 102 into the electrical energy required by the device to be charged. In this embodiment, the rated output power of a single power module 101 is set to be 15KW, and the total power output by 12 power modules 101 is 180 KW.
Two power distribution units 103, one power distribution unit 103 is connected to each power module group, and each power distribution unit 103 comprises a plurality of power regulation units 104 connected in parallel.
In this embodiment, the two power distribution units 103 are a first power distribution unit 103 and a second power distribution unit 103, respectively. The power distribution device further comprises a number of cabinets equal to the number of power distribution units 103, and each power distribution unit 103 is mounted in one cabinet. The spacing distance between each cabinet may be, but is not limited to, 0.5m-3 m. In this embodiment, the number of the power adjusting units 104 is not limited to 5.
As shown in fig. 2, each power conditioning unit 104 is connected with one power output port 106 and switch module groups 105 which are the same as the number of power modules 101 included in the same group of power module groups and are connected in parallel with each other, each switch module group 105 is electrically connected with the corresponding power output port 106, and each switch module group 105 is connected in series with one of the power modules 101.
In this embodiment, each switch module group 105 is, but not limited to, a relay, and for example, a contactor, a breaker, a disconnecting switch, or the like may also be used. Wherein each power output port 106 is electrically connected with a charging gun 107. The charging gun 107 is used to charge a device to be charged, for example, an electric automobile. In this embodiment, for a single power distribution unit 103, the power output from each power output port 106 is derived from one or more power modules 101, when one of the switch module groups 105 of the power adjustment unit 104 is closed, the maximum power output from the power output port 106 is 15KW, when two of the switch module groups 105 of the same power adjustment unit 104 are closed, the maximum power output from the power output port 106 is 30KW, when all of the switch module groups 105 of the same power adjustment unit 104 are closed, the maximum power output from the power output port 106 is 180KW, when two of the power adjustment units 104 have one of the switch module groups 105 closed, the maximum power output from the power output port 106 connected to each power adjustment unit 104 is 15KW, when three of the power adjustment units 104 have one of the switch module groups 105 closed, the maximum power output by the power output port 106 connected to each power conditioning unit 104 is 15KW, but the sum of the output powers does not exceed 180 KW.
The power output ports 106 corresponding to the 5 power adjusting units 104 are a 1-way power output port 106, a 2-way power output port 106, a 3-way power output port 106, a 4-way power output port 106, and a 5-way power output port 106.
At least one power adjusting unit 104 to which each power distribution unit 103 belongs is connected in parallel with at least one power adjusting unit 104 to which the other power distribution units 103 belong by a parallel connection line.
Further, the power output port 106 of at least one power adjusting unit 104 to which one of the power distributing units 103 belongs and the power output port 106 of at least one power adjusting unit 104 to which the other power distributing unit 103 belongs are connected in parallel in a one-to-one correspondence by a parallel connection line, and one of the 2 power output ports 106 after being connected in parallel serves as an output port of power after being connected in parallel.
In this embodiment, as shown in fig. 3, the specific parallel connection mode may be determined according to actual requirements. For example, the 4 th power output port 106 of the first power distribution unit may be connected in parallel to the 2 nd power output port 106 of the second power distribution unit; the 5 th path of the first power distribution unit is connected to the 1 st path of the second power distribution unit through a parallel line in parallel;
the 4 th power output port 106 of the second power distribution unit is connected to the 2 nd power output port 106 of the first power distribution unit in parallel through a parallel connection line;
the 5 th power output port 106 of the second power distribution unit is connected in parallel to the 1 st power output port 106 of the first power distribution unit via a parallel line.
And the central control device is electrically connected with each switch module group 105 and each power output port 106, and is configured to identify the number of remaining power modules 101, which are not called, in the same power module group, and control the one or more switch module groups 105, which are respectively included in one or more power adjusting units 104 included in two power distribution units 103 with parallel power output ports, to be turned on/off according to the number of remaining power modules, which are not called, in the same power module group, the maximum output power that can be output by the multiple power modules 101 in the same power module group to the one power distribution unit 103, and the required power transmitted by the one or more power output ports 106.
According to the embodiment, the parallel operation of the two cabinets (such as charging cabinets) is realized through the parallel connection of the two power distribution units 103, so that the purpose of outputting the high power of a single charging gun can be realized through the intelligent calling of the power between the two power distribution units 103, the simultaneous charging function of more charging devices can be met, and the resource utilization rate is improved. And through the optimization of the charging strategy, the purpose of intelligent quick charging can be realized, and the charging experience of a user is provided. In addition, the parallel operation structure of the power distribution device is simple, the debugging and the installation are simple and convenient, and the mechanism topology is easier.
Specifically, as a first embodiment: the central control device may be configured to, when the maximum output power that can be provided by the remaining un-called power modules 101 in a group of power module groups associated with one power distribution unit 103 is the maximum output power that can be output by a plurality of power modules 101 in the same group of power module groups to one power distribution unit 103 and is less than the required power of one of the power output ports 106 of the power distribution unit 103, according to the maximum output power of one power distribution unit 103 and the required power of one power output port of the plurality of power modules 101 in the same group of power module groups, one or more switch module groups 105 contained in the power regulation unit 104 connected in parallel with the power output port 106 of another power distribution unit 103 are controlled to be closed, to meet the required power by controlling the two power distribution units 103 in parallel at the power output port 106.
Optionally, when the power modules 101 including the first power distribution unit and the second power distribution unit and connected to the first power distribution unit are all available, a certain power output port 106 needs to be charged, and when the total power of all available power modules 101 cannot meet the required power of the power output port 106, the number of the power modules 101 of the second power distribution unit that need to be called is calculated according to the total power of the first power distribution unit and the required power of the power output port 106.
Further, according to the calculated number of the required power modules 101, one or more switch module groups included in the corresponding power adjusting unit 104 connected in parallel to the power output port 106 in the corresponding second power distribution unit are controlled to be closed, so that the called power is output through the corresponding power output port 106 of the second power distribution unit connected in parallel to the power output port 106. For example, referring to fig. 3, 2 power distribution units 103 are included, and 12 power modules 101 are connected to each power distribution unit 103, and each power module 101 is rated at 15 kw. When the required power of the 1 st power output port 106 of the first power distribution unit is greater than 180KW (for example, 210KW), it is calculated that 2 power modules 101 need to be called from the second power distribution unit (power needs to be called 30KW), that is, 2 switch module groups 105 included in the power adjusting unit 104 of the second power distribution unit connected in parallel with the 1 st power output port 106 are controlled to be closed, so that the power of the 2 power modules 101 is called through the 5 th power output port 106 in the second power distribution unit connected in parallel with the 1 st power output port 106.
Note that 12 power modules 101 are connected to each power distribution unit 103, and the rated power of each power module 101 is 15 kw. When the required power of the 1 st power output port 106 of the first power distribution unit is greater than 180KW (for example, 220KW), it is calculated that 3 power modules 101 need to be called from the second power distribution unit (40 KW needs to be called, and less than 15KW also needs to be output by one power module 101), that is, 3 switch module groups 105 included in the power adjusting unit 104 of the second power distribution unit connected in parallel with the 1 st power output port 106 are controlled to be closed, so that the power of the 3 power modules 101 is called through the 5 th power output port 106 in the second power distribution unit connected in parallel with the 1 st power output port 106.
In addition, as a second embodiment: the central control device may be further configured to, when the power of one group of power module groups associated with one power distribution unit 103 has been called by a used power output port 106 and the maximum output power that can be provided by the remaining unused power modules 101 is a first power value, where the first power value is greater than or equal to 0 and is less than the maximum output power that can be output by the power modules of the same group of power module groups to the power distribution unit 103, control one or more switch module groups 105 included in a power adjustment unit 104 of another power distribution unit 103 that is in parallel with the power output port 106 with the required power to close if it is detected that the remaining one of the power output ports of the power distribution unit 103 has the required power and is in parallel with a power adjustment unit to which the other power distribution unit belongs, and if the first power value is less than the required power, to meet the required power by controlling the two power distribution units 103 in parallel at the power output port 106.
For example, in connection with fig. 3, 12 power modules 101 are connected to each power distribution unit 103, and each power module 101 is rated at 15 kw. When the 3 rd power output port 106 of the first power distribution unit has invoked 12 power modules 101 of the first power distribution unit, the maximum output power that can be provided by the remaining un-invoked power modules 101 is 0. When it is detected that the 1 st power output port 106 of the first power distribution unit has a required power (for example, 60KW), it is required to call 4 power modules of the second power distribution unit, that is, call the power of the 5 th power output port 106 of the second power distribution unit in parallel with the 1 st power output port 106, that is, control the 4 switch module groups 105 included in the power adjusting unit 104 of the second power distribution unit in parallel with the 1 st power output port 106 to close.
For example, in connection with fig. 3, 12 power modules 101 are connected to each power distribution unit 103, and each power module 101 is rated at 15 kw. When the 3 rd power output port 106 of the first power distribution unit has invoked 9 power modules 101 of the first power distribution unit, the remaining power modules 101 that are not invoked are 3, and the maximum output power that can be provided is 45 kw. When it is detected that the 1 st power output port 106 of the first power distribution unit has a required power (for example, 60KW), in addition to the remaining 3 power modules 101 that are not called by the first power distribution unit, 1 power module in the second power distribution unit needs to be called, that is, the power of the 5 th power output port 106 in the second power distribution unit connected in parallel with the 1 st power output port 106 is called, that is, 1 switch module group 105 included in the power adjusting unit 104 connected in parallel with the 1 st power output port 106 of the second power distribution unit is controlled to be closed.
As a third embodiment: when the power of one group of power module groups associated with one power distribution unit 103 has been called by a used power output port and the maximum output power that can be provided by the remaining power modules 101 that are not called is a second power value, the central control apparatus is further configured to, if it is detected that the remaining one power output port 106 of the power distribution unit 103 has the required power and is not connected in parallel with the power regulation unit 104 to which the other power distribution unit 103 belongs through a parallel line, wherein the second power value is greater than or equal to 0 and smaller than the maximum output power that can be output to the power distribution unit by the power modules of the same group of power module groups, and if the second power value is smaller than the required power, control one or more switch module groups of the power regulation unit 104 corresponding to the used power output port 106 to be disconnected and the switch modules of the power regulation unit 104 of the other power distribution unit 103 connected in parallel with the used power output port 106 to be disconnected by the same number as the number of switches The group of off-modules is closed, and the group of switch modules equal in number to the remaining one of the power output ports 106 and the power modules 101 corresponding to the required power belonging to one power conditioning unit 104 is closed, so as to satisfy the required power by controlling the two power distribution units 103 connected in parallel to the power output ports 106.
For example, in connection with fig. 3, 12 power modules 101 are connected to each power distribution unit, each power module 101 being rated at 15 kw. When the 1 st power output port 106 of the first power distribution unit has invoked 12 power modules 101 of the first power distribution unit, the maximum output power that can be provided by the remaining un-invoked power modules 101 is 0. When it is detected that the 3 rd power output port 106 of the first power distribution unit has the required power (for example, 60KW), since the 3 rd power output port 106 is not connected in parallel with the power conditioning unit 104 of the second power distribution unit, the power module 101 that has been called in the first power distribution unit needs to be released to meet the required power of the 3 rd power output port 106.
Further, the 4 switch module groups of the power adjusting unit 104 corresponding to the 1 st power output port 106 of the first power distribution unit are controlled to be turned off, the 4 power modules 101 are released, the 4 switch module groups of the power adjusting unit 104 corresponding to the 3 rd power output port of the first power distribution unit can be controlled to be closed, to invoke the released 4 power modules 101 to meet the power requirements of the 3 rd power output port 106, meanwhile, the power of the 5 th power output port 106 in the second power distribution unit in parallel with the 1 st power output port 106 is called, namely, the 4 switch module groups 105 contained in the power conditioning unit 104 of the second power distribution unit in parallel with the 1 st power output port 106 are controlled to be closed, therefore, the original power requirement of the 1 st power output port 106 can be met, and the charging can be normally completed.
For example, in connection with fig. 3, 12 power modules 101 are connected to each power distribution unit 103, and each power module 101 is rated at 15 kw. When the 1 st power output port 106 of the first power distribution unit has invoked 9 power modules 101 of the first power distribution unit, the remaining power modules 101 that are not invoked are 3, and the maximum output power that can be provided is 45 kw. When it is detected that the required power (for example, 60KW) exists at the 3 rd power output port 106 of the first power distribution unit, the maximum output power that can be provided by the remaining 3 power modules 101 cannot meet the required power, 1 power module of the second power distribution unit needs to be called, and the 3 rd power output port is not connected in parallel with the power adjustment unit of the second power distribution unit, so that except for the remaining 3 power modules 101 of the first power distribution unit, 1 already called power module 101 in the first power distribution unit needs to be released to meet the required power of the 3 rd power output port 106.
Further, 1 switch module group of the power adjusting unit corresponding to the 1 st power output port 106 of the first power distribution unit is controlled to be opened, 1 power module 101 is released, 4 switch module groups of the power adjusting unit 104 corresponding to the 3 rd power output port 106 of the first power distribution unit can be controlled to be closed, so as to call the remaining 3 and the released 1 total 4 power modules 101 to meet the power requirement of the 3 rd power output port 106, so that the charging gun 107 connected with the 3 rd power output port 106 can charge the device to be charged in time, and at the same time, the power of the 5 th power output port 106 in the second power distribution unit in parallel connection with the 1 st power output port 106 is called, that is, the 1 switch module group 105 included in the power adjusting unit 104 in parallel connection with the 1 st power output port 106 of the second power distribution unit is controlled to be closed, therefore, the original power requirement of the 1 st power output port can be met, and the charging gun 107 of the 1 st power output port can normally complete charging.
It should be noted that, in the foregoing embodiment, when multiple power output ports 106 have required power at the same time, priority configuration and optimization of the charging policy may be performed on the power that needs to be allocated by each power output port 106 according to the size of the charging power or the requirement of the charging efficiency, so as to implement intelligent call of power between power allocation units, thereby implementing the purpose of intelligent fast charging.
Referring to fig. 4, an embodiment of the invention provides a power allocation method, and it should be noted that the power allocation apparatus of the above embodiment has the same basic principle and technical effect as the above embodiment, and for brief description, reference may be made to corresponding contents in the above embodiment for the part not mentioned in this embodiment. The power distribution method comprises the following steps:
step S401: the number of remaining un-invoked power modules of the same group of power modules is identified.
Step S402: according to the number of the remaining power modules which are not called in the same power module group, the number of the power modules 101 in the same power module group, which can control the maximum output power of one power distribution unit 103 and the required power transmitted by one or more power output ports 106, one or more switch module groups 105 respectively included in one or more power adjusting units 104 included in two power distribution units 103 connected in parallel are turned on/off.
Specifically, one embodiment of step S402 may be: when the maximum output power that a group of power modules 101 associated with one power distribution unit can provide by the remaining un-called power modules 101 is the maximum output power that a plurality of power modules 101 of the same group of power module groups can output to one power distribution unit 103 and is less than the required power of one power output port 106 of the power distribution unit, according to the maximum output power that a plurality of power modules 101 of the same group of power module groups can output to one power distribution unit 103 and the required power, controlling one or more switch module groups 105 included in a power adjustment unit 104 of another power distribution unit 103 that is connected in parallel with the power output port 106 to close so as to satisfy the required power by controlling two power distribution units 103 connected in parallel with the power output port 106.
Specifically, another implementation manner of step S402 may be: when the power module 101 of one power module group associated with one power distribution unit 103 has been called by a used power output port and the maximum output power that can be provided by the remaining power modules 101 that are not called is a first power value, where the first power value is greater than or equal to 0 and is less than the maximum output power that can be output by the power modules 101 of the same power module group to the power distribution unit 103, if it is detected that there is a required power at the remaining one power output port 106 of the power distribution unit 103 and the power regulation unit to which another power distribution unit belongs is connected in parallel through a parallel connection line, and if the first power value is less than the required power, one or more switch module groups 105 included in the power regulation unit 104 of another power distribution unit 103 that is connected in parallel with the power output port 101 with the required power are controlled to be closed, to meet the required power by controlling the two power distribution units 103 in parallel at the power output port 106.
Specifically, another implementation manner of step S302 may also be: when the power of one group of power module groups 105 associated with one power distribution unit 103 has been called by a used power output port and the maximum output power that can be provided by the remaining power modules 101 that are not called is a second power value, where the second power value is greater than or equal to 0 and is less than the maximum output power that can be output by the power modules 101 of the same group of power module groups to the power distribution unit 103, if it is detected that one of the remaining power output ports 106 of the power distribution unit 103 has a required power and is not connected in parallel with the power adjustment unit 104 to which the other power distribution unit 103 belongs through a parallel connection line, and if the second power value is less than the required power, one or more switch module groups of the power adjustment unit 103 corresponding to the used power output port 106 are controlled to be opened and switch module groups of the power adjustment unit 104 of the other power distribution unit 103 connected in parallel with the used power output port 106 are controlled to be closed And the switch module group with the same number of the remaining one of the power output ports 106 as the power modules 101 corresponding to the required power belonging to the one power adjusting unit 104 is closed to satisfy the required power by controlling the two power distribution units 103 connected in parallel to the power output port 106.
In summary, the power distribution apparatus and method provided by the present invention can control the on/off of one or more switch module groups respectively included in two power distribution units connected in parallel by controlling the maximum output power output by one power distribution unit and the required power transmitted by one or more power output ports according to the number of remaining non-called power modules in the same power module group and the number of power modules in the same power module group. The total power that function distribution device can provide at this moment is the sum of the maximum output power that two power distribution units output, under the circumstances of guaranteeing charging efficiency, can charge for more equipment of waiting to charge simultaneously to when single equipment charges, can the completion of higher efficiency charge, and two power distribution units can realize the intelligent transfer of power, can be simultaneously for the equipment of waiting to charge that the demand of charging is greater than the maximum power that single power distribution unit can provide.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A power distribution apparatus, characterized in that the power distribution apparatus comprises:
the power module group comprises a plurality of power modules which are connected with power supply equipment and are connected in parallel;
each power module group is connected with a power distribution unit, and each power distribution unit comprises a plurality of power regulation units connected in parallel;
each power regulating unit comprises a power output port and switch module groups which are the same with the power modules in the same group of power module groups in number and are connected in parallel, each switch module group is electrically connected with the corresponding power output port, and each switch module group is connected with one of the power modules in series;
at least one power regulating unit belonging to one power distribution unit is connected in parallel with at least one power regulating unit belonging to another power distribution unit through a parallel connection line; the power output port of at least one power regulating unit to which one power distribution unit belongs is connected in parallel with the power output port of at least one power regulating unit to which the other power distribution unit belongs in a one-to-one correspondence manner through parallel operation lines;
and the central control equipment is electrically connected with each switch module group and each power output port, and is used for controlling the on/off of one or more switch module groups respectively contained in one or more power regulating units contained in two power distribution units with power output ports connected in parallel according to the number of the remaining power modules of the same power module group which are not called, the maximum output power which can be output by a plurality of power modules of the same power module group to one power distribution unit and the required power transmitted by one or more power output ports.
2. The power distribution apparatus according to claim 1, wherein the central control device is configured to, when the maximum output power that can be provided by the remaining power modules that are not called in a group of power modules associated with one power distribution unit is the maximum output power that can be output by a plurality of power modules of the same group of power modules to one power distribution unit and is less than the required power of one of the power output ports of the power distribution unit, controlling one or more switch module groups contained in a power regulating unit of another power distribution unit which is connected with the power output port in parallel to be closed according to the maximum output power which can be output by one power distribution unit and the required power of a plurality of power modules of the same power module group, to meet the required power by controlling two power distribution units in parallel with the power output port.
3. The power distribution apparatus according to claim 1, wherein when the power of a group of power module groups associated with one power distribution unit has been called by a used power output port and the maximum output power that can be provided by the remaining power modules that are not called is a first power value, where the first power value is greater than or equal to 0 and is less than the maximum output power that can be output by the power modules of the same group of power module groups to the power distribution unit, the central control device is configured to control one or more switch module groups included in a power adjustment unit of another power distribution unit that is connected in parallel with the power output port with the required power to close if it is detected that the remaining one of the power output ports of the power distribution unit has the required power and is connected in parallel with the power adjustment unit belonging to the other power distribution unit through a parallel connection line, and if the first power value is less than the required power, to meet the required power by controlling two power distribution units in parallel with the power output port.
4. The power distribution apparatus according to claim 1, wherein when the power of a group of power module groups associated with one power distribution unit has been called by a used power output port and the maximum output power that can be provided by the remaining power modules that have not been called is a second power value, where the second power value is greater than or equal to 0 and is less than the maximum output power that can be output by the power modules of the same group of power module groups to the power distribution unit, the central control device is configured to control one or more switch module groups of the power adjustment unit corresponding to the used power output port to be disconnected and the used power output port to be connected in parallel if it is detected that the remaining one of the power output ports of the power distribution unit has a required power and is not connected in parallel with the power adjustment unit to which another power distribution unit belongs, and if the second power value is less than the required power The switch module groups with the same number as the open number of the power regulating units of the other power distribution unit are closed, and the switch module groups with the same number as the power modules which belong to one power regulating unit and correspond to the required power are closed, so that the required power is met by controlling the two power distribution units with the power output ports connected in parallel.
5. The power distribution apparatus of claim 1, further comprising an equal number of cabinets as the power distribution units, each of the power distribution units being mounted within one of the cabinets.
6. The power distribution apparatus of claim 1, wherein one of the 2 power output ports after being connected in parallel is used as an output port of power after being connected in parallel.
7. A power allocation method applied to the power allocation apparatus of claim 1, the power allocation method comprising:
identifying the number of remaining un-invoked power modules of the same group of power modules;
and controlling one or more switch module groups contained in one or more power regulating units respectively contained in two power distributing units with power output ports connected in parallel to be switched on/off according to the number of the remaining power modules which are not called in the same power module group, the maximum output power which can be output by one power distributing unit and the required power transmitted by one or more power output ports of a plurality of power modules in the same power module group.
8. The power distribution method according to claim 7, wherein the step of controlling one or more switch block groups respectively included in one or more power adjusting units included in two power distribution units having power output ports connected in parallel to be turned on/off according to the number of remaining power modules of the same power module group that are not called, the maximum output power that can be output by a power distribution unit of the same power module group, and the required power that can be transmitted by a plurality of power modules of the same power module group to one or more power output ports comprises:
when the maximum output power which can be provided by the remaining power modules which are not called in the group of power module groups associated with one power distribution unit is the maximum output power which can be output by the power modules of the same group of power module groups to one power distribution unit and is less than the required power of one power output port of the power distribution unit, controlling one or more switch module groups contained in the power regulation unit which is connected in parallel with the power output port of the other power distribution unit to be closed according to the maximum output power which can be output by the power modules of the same group of power module groups to one power distribution unit and the required power so as to meet the required power by controlling the two power distribution units which are connected in parallel with the power output port.
9. The power distribution method according to claim 7, wherein the step of controlling one or more switch block groups respectively included in one or more power adjusting units included in two power distribution units having power output ports connected in parallel to be turned on/off according to the number of remaining power modules of the same power module group that are not called, the maximum output power that can be output by a power distribution unit of the same power module group, and the required power that can be transmitted by a plurality of power modules of the same power module group to one or more power output ports comprises:
when the power of a group of power module groups associated with one power distribution unit has been called by a used power output port and the maximum output power that can be provided by the remaining power modules that are not called is a first power value, where the first power value is greater than or equal to 0 and is less than the maximum output power that can be output by the power modules of the same group of power module groups to the power distribution unit, the central control device is further configured to control one or more switch module groups included in a power regulation unit of another power distribution unit that is connected in parallel with the power output port with the required power to close if it is detected that there is required power at the remaining one power output port of the power distribution unit and the power regulation unit belongs to another power distribution unit is connected in parallel through a parallel connection line, and if the first power value is less than the required power, to meet the required power by controlling two power distribution units in parallel with the power output port.
10. The power distribution method according to claim 7, wherein the step of controlling one or more switch block groups respectively included in one or more power adjusting units included in two power distribution units having power output ports connected in parallel to be turned on/off according to the number of remaining power modules of the same power module group that are not called, the maximum output power that can be output by a power distribution unit of the same power module group, and the required power that can be transmitted by a plurality of power modules of the same power module group to one or more power output ports comprises:
when the power of one group of power module groups associated with one power distribution unit is called by a used power output port and the maximum output power which can be provided by the remaining power modules which are not called is a second power value, wherein the second power value is greater than or equal to 0 and is less than the maximum output power which can be output by the power modules of the same group of power module groups to the power distribution unit, the central control device is used for controlling one or more switch module groups of the power regulation units corresponding to the used power output port to be disconnected and the number of the power regulation units of the other power distribution unit connected in parallel with the used power output port to be equal to the disconnection number if the central control device detects that the remaining one power output port of the power distribution unit has the required power and is not connected in parallel with the power regulation unit to which the other power distribution unit belongs through a parallel connection line, and if the second power value is less than the required power The switch module group is closed, and the switch module groups with the same number as the rest one of the power output ports and the power modules which belong to one power regulating unit and correspond to the required power are closed, so that the required power is met by controlling the two power distribution units which are connected in parallel with the power output ports.
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| CN112446524A (en) * | 2019-09-05 | 2021-03-05 | 国创新能源汽车能源与信息创新中心(江苏)有限公司 | High-power charging configuration method and device |
| CN114801828A (en) * | 2019-12-26 | 2022-07-29 | 奥动新能源汽车科技有限公司 | Charging system for battery changing station or energy storage station |
| CN112319298B (en) * | 2020-11-04 | 2022-07-15 | 四川光慧新能源科技有限公司 | Method for coordinating current distribution of multiple charging modules |
| CN112659931B (en) * | 2020-12-23 | 2023-01-13 | 国网湖北省电力有限公司电力科学研究院 | X matrix type charging stack power distribution device and method |
| CN113489294A (en) * | 2021-06-08 | 2021-10-08 | 芯海科技（深圳）股份有限公司 | Discharging circuit, integrated circuit, power adapter, mobile power supply and discharging method |
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| CN113580992A (en) * | 2021-07-13 | 2021-11-02 | 万帮数字能源股份有限公司 | Direct current charging system, charging pile and charging control method |
| WO2023050426A1 (en) * | 2021-09-30 | 2023-04-06 | 华为技术有限公司 | Charging/discharging method and related apparatus |
| CN115946563B (en) * | 2023-03-13 | 2023-05-16 | 山东理工大学 | Charging pile power dynamic allocation strategy optimization method, system, terminal and medium |
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