WO2020093671A1

WO2020093671A1 - Power distribution method and device, and charging system applying dynamic power supply of factory

Info

Publication number: WO2020093671A1
Application number: PCT/CN2019/086331
Authority: WO
Inventors: 成志东; 王天雷; 钟东洲
Original assignee: 五邑大学
Priority date: 2018-11-05
Filing date: 2019-05-10
Publication date: 2020-05-14
Also published as: CN109474033A

Abstract

Disclosed by the present invention are an intelligent socket, a power distribution unit matching the intelligent socket, and a power distribution method based on the dynamic power supply distribution of a factory. The intelligent socket accesses charging equipment and industrial equipment and is connected to the power distribution unit, so that surplus electricity may be automatically distributed to current electricity utilization equipment according to the power distribution method, or in other words, by building a novel energy consumption factory of a dynamic load, wherein the surplus electricity of the factory may be fully used for charging application of electric automobiles and dynamic industrial equipment in the factory in a time-sharing mode; and vehicle-mounted slow-charging chargers of the electric automobiles also may be massively used by means of facilities such as the intelligent socket, so that the construction of a large amount of high-cost charging piles is avoided, a large amount of charging facilities and power supply lines are avoided, and the problem of electricity waste under the condition of factory shutdown or low load is also solved.

Description

Power distribution method, device and charging system applying dynamic power supply of factory

Technical field

The invention relates to the technical field of electric vehicle charging facilities, in particular to a power distribution method and device, and a charging system that uses factory dynamic power supply.

Background technique

With the increasing number of electric vehicles, many cities in China began to cover charging facilities in their areas to meet the charging needs of electric vehicles, but charging facility operators generally suffer severe losses because the charging facility operators need to build new charging facilities. Investing in the laying of new power lines and power supply facilities, but the current utilization rate of charging facilities is not high, the power idle rate of power supply facilities is high, the economic benefits are poor, and the operator's charging projects are slow to pay back.

On the other hand, the power-consuming equipment inside the factory is not running all day, and some power-consuming equipment consumes power dynamically even if it is running. Especially in high-energy-consuming factories, the power-consuming equipment cannot run continuously at full load for 24 hours For the power lines of a plant, the total load on the line usually changes dynamically. When the load of the power-consuming equipment of the plant is low during certain periods, some power resources are idle.

Combining the above two situations, it may be considered to invest in the construction of electric vehicle charging facilities in the factory, fully utilize the idle power of the factory through the charging facility, and can use a large number of electric vehicle on-board slow charging chargers through facilities such as sockets to avoid a large amount of construction High-cost charging pile.

Summary of the invention

Based on the above problems, the present invention provides a power distribution method, device, and charging system that uses factory dynamic power supply to meet the power demand of factory electrical equipment and charging facilities through dynamic power distribution, and reduce the construction investment of charging projects. Improve the power utilization rate of the factory and realize the efficient use of power.

The technical solutions adopted by the present invention to solve its problems are:

A method for a socket end to request power from a power distribution end includes the following steps:

Check the access of electrical equipment;

Send the ID number of the current socket end to the power distribution end, communicate with the power distribution end, and exchange instructions and data with the power distribution end;

If the electricity application is approved, it will receive the power transmission from the power distribution end and supply power to the electricity-using equipment.

A device for requesting electricity from a power distribution end by a socket end includes the following modules:

Socket socket module, used to detect the access of electrical equipment;

The socket communication module is used to send the ID number of the current socket to the power distribution end, communicate with the power distribution end, and exchange instructions and data with the power distribution end;

Power supply module: used to receive power transmission from the power distribution end and supply power to power-using equipment if the application for electricity is passed.

An intelligent socket includes a socket socket, a communication module and a power consumption control module. The communication module includes a power application module and a power application shielding module. The power control module includes a storage chip and an internal for storing an ID number A power supply switch, the communication module is connected to the power consumption control module.

A method for distributing electric power from a power distribution end to a socket end includes the following steps:

Communicating handshake with the socket to obtain the ID number sent by the socket;

According to the priority of the ID number, adjust the power distribution of the network equipment and determine whether to distribute power to the outlet according to the adjustment result.

Further, the method for adjusting the power distribution of network equipment includes the following steps:

According to the current ID number, search the power allocation table of the whole network equipment to obtain the priority of the ID number;

Check the power margin of the power supply system;

If the power margin of the power supply system is greater than or equal to the current power demand of the outlet, the power is allocated to the outlet. When the power margin of the power supply system is less than the current power demand of the outlet, the low priority is determined according to the priority of the ID number. Whether the level of power equipment can meet the power demand, is to disconnect the low-priority power equipment and distribute power to the outlet, otherwise return a rejection or waiting command to the outlet;

Update the power allocation table of the whole network.

A device for distributing electric power from a power distribution end to a socket end includes the following modules:

The communication module at the distribution end is used for handshake with the socket to obtain the ID number sent by the socket;

The power distribution module adjusts the power distribution of the network equipment according to the priority of the ID number and determines whether to distribute power to the outlet according to the adjustment result.

Further, the power distribution module includes the following modules:

The allocation table search module is used to search the power allocation table of the whole network equipment according to the current ID number to obtain the priority of the ID number;

The margin detection module detects the power margin of the power supply system;

The allocation determination module is used to allocate power to the outlet if the power margin of the power supply system is greater than or equal to the current power demand of the outlet. If the power margin of the power supply system is less than the current power demand of the outlet, the priority is based on the ID number. The level determines whether disconnecting the low-priority electrical equipment can meet the power demand, if it is, disconnecting the low-priority electrical equipment and allocating power to the outlet, otherwise it returns a rejection or waiting command to the outlet;

The distribution table update module is used to update the power distribution table of the whole network equipment.

An apparatus for distributing power to a socket end by a power distribution end includes a processor and a memory for storing executable instructions of the processor,

The processor performs the following steps according to instructions in the memory:

A charging system using dynamic power supply in a factory includes the above-mentioned smart socket, a power distribution unit connected to the dynamic power supply line of the factory, and a power-using device connected to the smart socket, the power-using device includes charging for electric vehicle charging Equipment and industrial equipment used for factory dynamic power supply lines, each of the electrical equipment is connected to the intelligent socket, the number of the intelligent sockets is greater than or equal to the number of the electrical equipment, the intelligent sockets are connected to The power distribution unit.

Further, the charging equipment includes a fast charging pile and / or a slow charging pile, and the industrial equipment of the dynamic power supply line includes a dynamic load power equipment and / or a common dynamic load power equipment that can be set for power supply duration, each of which is charged More than one device can be set, and more than one can be set for each of the industrial devices.

Further, the smart socket is connected to the power distribution unit through the Internet or a local area network in the factory, and the power distribution unit is a cloud server or a power dispatch center.

The beneficial effects of the present invention are: the present invention provides a smart socket and a power distribution unit matched with the smart socket, and a power distribution method based on dynamic power distribution of the factory, charging equipment, industrial equipment and on-board charging of electric vehicles The machine is connected to the smart socket and then connected to the power distribution unit. The power distribution unit can automatically distribute the surplus power to the current electrical equipment according to the power distribution rules. That is, by building a new type of dynamic energy-consuming plant, the surplus power of the factory can be seen It is used for charging applications of electric vehicles and dynamic industrial equipment in factories in a time-sharing manner, avoiding a lot of idle phenomenon of charging facilities and power supply lines, and also solving the problem of wasted power in the case of factory shutdown or low load.

BRIEF DESCRIPTION

The present invention will be further described below with reference to the drawings and embodiments.

1 is a schematic diagram of a connection relationship of an embodiment of a charging system of the present invention;

2 is a schematic block diagram of an embodiment of a smart socket of the present invention;

3 is a schematic block diagram of an embodiment of a smart socket of the present invention connected to a dynamic load power device that can be set for power supply duration;

4 is a schematic block diagram of an embodiment of a smart socket connected to an on-board charger of an electric vehicle according to the present invention;

5 is a schematic block diagram of an embodiment of a smart socket connected to a charging pile according to the present invention;

6 is a flow chart of an embodiment of a method for a socket end to request power consumption from a power distribution end according to the present invention;

7 is a flow chart of another embodiment of a method of a socket end requesting power from a power distribution end of the present invention;

8 is a flowchart of another embodiment of a method for a socket end to request power consumption from a power distribution end of the present invention;

9 is a flow chart of another embodiment of a method of a socket end requesting power from a power distribution end of the present invention;

10 is a flowchart of an embodiment of a method for distributing power from a power distribution end to a socket end of the present invention;

11 is a flowchart of another embodiment of a method for distributing power from a power distribution end to a socket end of the present invention;

12 is a flowchart of the application method of the charging system of the present invention.

detailed description

With the popularity of electric vehicles, charging facilities, as one of the infrastructure of a city, have attracted many charging pile operators to invest in construction, but the current penetration rate of electric vehicles is difficult to increase to a higher level in the future. Therefore, At present, the utilization rate of the charging piles that have been built is very low. Especially in non-first-tier cities, the charging pile operators have suffered large losses, poor economic benefits, and slow repayment of charging projects.

Therefore, in order to solve the above problems, the present application takes into account the current status of idle power in high-energy-consuming factories, and combined with the operating needs of charging facilities, proposes the following multiple implementation methods to solve the problem.

As a cooperative development method of high-energy-consuming factories and charging pile operators, the most basic solution is: separate the two parts of electric power in the main transmission line of the cooperative factory, which are fixed power line power and dynamic power line power, and fixed power supply. The line power is supplied to the fixed electrical equipment of the factory, and the dynamic power supply line power is connected to the power distribution unit. The power distribution unit distributes this electric power as the surplus power of the factory. The distribution objects include charging equipment and industries in the dynamic power supply line. Equipment, so that on the basis of ensuring the normal operation of the power equipment of the fixed power supply line of the factory, it can dynamically adjust the surplus power of the cooperative factory. The following describes the technical solution in detail:

Referring to FIG. 1, an embodiment provided by the present invention is a charging system that uses factory dynamic power supply, including a smart socket, a power distribution unit, and an electrical device connected to the smart socket, the electrical device includes an electric vehicle Charging charging equipment and industrial equipment in the factory's dynamic power supply line, one of the electrical equipment is connected to the intelligent socket, the number of the intelligent socket is greater than or equal to the quantity of the electrical equipment, the intelligent sockets are connected To the power distribution unit.

In this embodiment, each of the charging equipment and the industrial equipment has a smart socket corresponding to it, and when the number of the smart sockets is greater than the number of the electrical equipment, the extra smart sockets are used for An on-board charger for an electric vehicle corresponds to an electric vehicle on the market that is directly connected to the mains for charging, and the charging device corresponds to an electric vehicle that requires a specific charging pile. Therefore, the connection objects of the smart socket in this embodiment include charging equipment, industrial equipment, and car charger.

The smart sockets are all connected to the power distribution unit and are controlled by the power distribution unit. When there is the electrical equipment applying for power from the power distribution unit through the smart socket, the power distribution unit passes Query the power margin of the current power supply system, and decide whether to supply power to the power-using equipment according to certain rules. Based on the idea of binary time-sharing and sharing, the dynamic power supply line of the factory is independent and the power is distributed according to certain rules, which can simultaneously meet the industrial equipment connected to the dynamic power supply line in the factory, the charging equipment and the charging equipment outside the factory. The on-board charger provides power and space for the charging equipment, which reduces the idle power of the factory and the investment cost of the charging pile operator. For the factory, it can effectively use its power supply line, at low load When it is possible to distribute electricity to the charging pile operator that cooperates with itself, for the charging pile operator, the cost of power supply facility construction and line laying is saved, and only investment in charging equipment and smart sockets is needed, which greatly saves itself The operating costs of the two are achieved in one fell swoop.

Preferably, in another embodiment of the present invention, a charging system that uses factory dynamic power supply, the charging device includes a fast charging pile and / or a slow charging pile, and the industrial equipment of the dynamic power supply line includes a power supply duration that can be set For dynamic load power equipment and / or general dynamic load power equipment, more than one of each of the charging devices may be provided, and more than one of each of the industrial equipment may be provided.

In this embodiment, the construction part of the charging pile operator includes a fast charging pile and / or a slow charging pile. In the actual construction process, two charging piles can be considered to be constructed at the same time or only one of them is selected for construction according to the actual situation. The equipment in the internal dynamic power supply line is mainly divided into two types, covering the normal operation mode of the current non-fixed equipment of the factory, that is, the equipment that runs regularly and the equipment at any time. The factory can access its industrial equipment according to the actual situation. .

Preferably, in a charging system using dynamic power supply in another embodiment of the present invention, the number of fast charging piles is less than the number of slow charging piles, and the number of smart sockets that are not connected to the electrical equipment is greater than or equal to The number of the slow-filling piles.

In this embodiment, the number of the smart sockets is greater than the number of electrical devices, and the excess of the smart sockets is used to connect the on-board charger of the electric vehicle, that is, the charging pile operator can be built into a fast charging pile , Slow charging piles and charging sites for devices suitable for on-board chargers to meet the needs of all current charging cars. In particular, the number of the smart sockets in this embodiment is much larger than the number of the electric devices. This part of the smart sockets suitable for vehicle chargers can greatly reduce the cost of building two charging piles.

Preferably, a charging system applying dynamic power supply in another embodiment of the present invention further includes a monitoring socket provided on a fixed power supply line of the factory, the monitoring socket is connected to the power equipment of the fixed power supply line of the factory, and at the same time Connected to the power distribution unit, the monitoring socket includes a manual application power module for requesting the power distribution unit to significantly reduce the load on the dynamic power supply line when the power equipment on the fixed power supply line is started .

In this embodiment, the power equipment in the factory with a fixed power supply line is included in the power distribution unit through the monitoring socket. In fact, the function of the monitoring socket is only to request the power distribution unit in certain scenarios These scenarios include, but are not limited to, when the power equipment of the fixed power supply line requires high power to start up, or when the high power power equipment is temporarily added. The structure of the monitoring socket is further described in the structure section of the smart socket described below.

Referring to FIG. 2, an embodiment of the present invention provides an intelligent socket including a socket socket, a communication module and a power consumption control module. The communication module includes a power application module and a power application shielding module. The power control The module includes a storage chip for storing an ID number and an internal power supply switch, and the communication module is connected to the power control module.

In this embodiment, the smart socket is applied to the charging system of the above embodiment, and the socket socket is used to connect the electrical equipment. Since the connectors of the electrical equipment are not the same, the intelligent socket in this embodiment The sockets of the sockets are set according to the actual situation, including but not limited to three-phase sockets, charging pile sockets and sockets corresponding to industrial plugs of various core numbers; the communication module is used to communicate with the power distribution unit to distribute the power The unit sends the electricity application and ID number, and the electricity application shielding module can also receive the power distribution unit's instruction to prohibit the application of electricity. The working principle is that the smart socket successfully applies for power supply and accesses the dynamic After the power supply line, the power distribution unit returns a command to the power application shielding module to stop the power application module from working. When the smart socket fails to apply for power supply, the power application If the shielding module fails to receive the returned command, the electricity application module will intermittently apply for electricity to the power distribution unit. In addition to storing the ID number, the power control module also has an internal power supply switch for disconnecting power supply according to actual applications. The power supply of the internal power supply switch is divided into user active power off, power off when the set conditions are reached, and all Describe the forced power off of the power distribution unit.

Preferably, referring to FIGS. 4-5, the smart socket of another embodiment of the present invention further includes an electric energy meter for detecting electric energy and a voltage detection module for detecting the battery voltage of the electric vehicle.

In this embodiment, the electric energy meter is added to detect how much electric energy is currently consumed by the electric equipment, which can be applied to the charging of the charging device, or the power consumption of the industrial equipment can be monitored according to the electric energy meter, and The voltage detection module continuously detects the battery voltage of the electric vehicle, and instructs the internal power switch to turn off the power supply after the battery is full, protecting the battery from overcharging. This function is usually provided by a power management chip, which is widely used in existing products such as mobile phone charging heads, wireless charging boards, power banks or transmission and distribution grid distribution management modules.

Preferably, referring to FIGS. 3-5, in another embodiment of the present invention, the smart socket connected to the charging device further includes a two-dimensional code display module, a charging rectifier module, a charging connector locking module, and a rainproof shed, The smart socket connected to the car charger further includes a two-dimensional code display module, a charging connector lock module and a rainproof shed, and the smart socket connected to the dynamic load power equipment that can set the power supply duration also includes a power duration setting module .

This embodiment may be based on the above-mentioned charging system that uses factory dynamic power supply, or may be based on the above-mentioned smart socket. Since the application scenarios of the charging device and the industrial device are different, the smart socket has basic functions For further expansion, for the charging device, the smart socket adds the two-dimensional code display module for sharing mode, scans the two-dimensional code for user authentication or regular quantitative charging and other operations, and also provides the The charging rectifier module converts the AC of the power transmission network into DC to quickly charge the battery of the electric vehicle, and the charging connector locking module is provided to prevent the user from pulling out the charging plug without paying or improper operation, and the rain protection is also provided. The shed prevents rainwater from entering the socket and damaging the internal circuit of the socket; for the case of connecting the electric vehicle car charger, the charging rectifier module is only removed on the basis of the above functions, and the remaining functions are the same; for the industrial equipment, the ordinary dynamic load The electrical equipment can be used with the smart socket of the basic function, and all Long smart socket dynamic loads in power equipment also need to set the electrical length setting module for setting the time and timing function can be set to disconnect the power supply and the like.

Preferably, in another embodiment of the present invention, a charging system that uses factory dynamic power supply, the smart socket is connected to the power distribution unit through the Internet or a local area network in the factory.

This embodiment actually shows that the communication module of the smart socket can communicate with the power distribution unit in multiple modes. Considering that the plant belongs to a small network area, the Internet of Things can be used for networking. The mentioned communication module is actually an Internet of Things communication module. Networking via the Internet is a conventional means, and will not be described in detail here. The establishment of a small-scale Internet of Things through a local area network can be carried out through the fiber optic bus, 485 bus, and CAN bus. The device connection can also be connected by wireless such as wifi, Bluetooth, etc., or a combination of wireless and wired, as long as data transmission can be achieved.

Preferably, in another embodiment of the present invention, in a charging system that uses factory dynamic power supply, the power distribution unit is a cloud server or a power dispatch center. Based on the networking mode of the Internet of Things or the Internet, the power distribution unit may be a power dispatch center suitable for the Internet of Things, or a cloud server suitable for the Internet. The cloud server or the power dispatch center includes a power distribution center. A specific control method will be specifically described by the following embodiments.

Referring to FIG. 6, an embodiment of the present invention provides a method for a socket end to request power from a power distribution end, including the following steps:

Check the access of electrical equipment;

This embodiment provides a process for the smart socket to apply for power to the power distribution unit. The smart socket is used as the socket end in the embodiment. When detecting that the plug of a useful electrical device is inserted, the smart socket inserts its own ID The number is sent to the power distribution end together to try to apply for electricity. When the electricity application is passed, it can receive power transmission to supply power to the electricity-consuming equipment, and exchange data with the power distribution terminal during the power supply process. When the electricity application fails, it may generate waiting access or refuse access.

In addition, during the charging process, process data such as the access time of the socket end is continuously sent to the power distribution end, and commands from the power distribution end are received at any time, such as forced power off, etc., to achieve full process monitoring.

Preferably, in another embodiment of the present invention, a method for a socket end to request power from a power distribution end sends the current ID number of the socket end to the power distribution end through wired, wireless, or a combination of the two, and the power distribution end Make a communication connection and exchange instructions and data with the power distribution end.

This embodiment provides a connection method between the smart socket and the power distribution end, and the connection is completed by a communication module in the smart socket.

Preferably, referring to FIG. 7, in another embodiment of the present invention, a method for a socket end to request power consumption from a power distribution end records power consumption data while supplying power.

After the electricity application is passed, the smart socket calculates the electricity consumption by itself, and continuously sends the electricity consumption data to the power distribution end through the communication module, wherein the electricity consumption calculation is completed by the energy meter.

Preferably, referring to FIG. 8, a method for a socket end to request power from a power distribution end according to another embodiment of the present invention sets a charging duration, and sends a disconnect signal after the charging duration is reached.

The timing function of this embodiment is applicable to the control of the power supply duration by the smart socket, and generally can be applied to the above-mentioned various power-consuming devices. In particular, it only corresponds to the intelligence of dynamic load power equipment that can be set for the power supply duration The socket is not necessary for a smart socket connected to other electrical equipment; the object of sending a disconnect signal in this embodiment is the internal power switch.

Preferably, referring to FIG. 9, a method for a socket end to request power from a power distribution end according to another embodiment of the present invention, if a power off command from the power distribution end is received, the internal power supply switch is turned off, or, if the Set the duration of power consumption, the plug is pulled out or the battery is detected to be full, the internal power switch is turned off, and the power distribution status information is sent to the power distribution terminal.

This embodiment defines three power-off modes. The first power-off mode is: for the purpose of dynamically adjusting power distribution, the power distribution end sends a forced power-off command to the socket end to cause the smart socket to power off; second The power-off mode is: the user stops charging halfway, pulls out the charging plug, and causes the smart socket to power off. At this time, the smart socket sends a power-off report to the power distribution end; the third power-off mode is: powered device When the set duration of power consumption is reached or the battery is full, the socket end actively disconnects the power supply line and sends a power outage report to the power distribution end.

According to an embodiment provided by the present invention, a device for a socket to request power from a power distribution terminal includes the following modules:

Socket socket module, used to detect the access of electrical equipment;

Preferably, in another embodiment of the present invention, a device for requesting electricity from a power distribution end by a socket end, the socket end communication module sends the current socket end to the power distribution end in a wired, wireless, or a combination of the two The ID number communicates with the power distribution end and exchanges commands and data with the power distribution end.

Preferably, a device for a socket end to request power consumption from a power distribution end according to another embodiment of the present invention further includes an energy meter module for recording power consumption data while supplying power.

Preferably, a device for a socket end to request power from a power distribution end according to another embodiment of the present invention further includes a timing module for setting a charging duration, and sending a disconnect signal after the charging duration is reached.

Preferably, a device for requesting electricity from a power distribution end by a socket end according to another embodiment of the present invention further includes an on-off control module for turning off the internal power supply switch if a power-off command is received from the power distribution end Or, if the set duration of power consumption is reached, the plug is pulled out, or the battery is detected to be full, the internal power switch is turned off, and the power distribution status information is sent to the power distribution end.

Referring to FIG. 10, an embodiment of the present invention provides a method for distributing power from a power distribution end to a socket end, including the following steps:

In this embodiment, the power distribution end is responsible for scheduling the power usage of each socket end of the network. The power distribution end is identified by the ID number of the socket end, and it can know which type of electrical equipment the socket end is connected to, by receiving the socket The application for power consumption at the end, and then decide whether to distribute power to the equipment in the network, and the corresponding power adjustment rules are described in the following embodiments.

Preferably, referring to FIG. 11, a method for distributing power to a socket end by a power distribution end according to another embodiment of the present invention. The method for adjusting power distribution of a network device includes the following steps:

Check the power margin of the power supply system;

If the power margin of the power supply system is greater than or equal to the current power demand of the outlet, the power is allocated to the socket. If the power margin of the power supply system is less than the current power demand of the outlet, the disconnection priority is determined according to the priority of the ID number. Whether the level of power equipment can meet the power demand, is to disconnect the low-priority power equipment and distribute power to the outlet, otherwise return a rejection or waiting command to the outlet;

Update the power allocation table of the whole network.

In this embodiment, a power distribution table of the whole network equipment is established in the power distribution terminal, which is used to record various data of the network equipment. The power distribution terminal adjusts the power of the electrical equipment on the network according to the data in this table. At least the priority information of the electric equipment classified according to the ID number is recorded. When a new electric equipment submits a power application, the power distribution end searches for the priority according to the ID number sent by the outlet and decides whether to send the power to the current network. Regarding the distribution of electric power, the power distribution terminal updates the power distribution table of the entire network regardless of whether the power application is passed or not, which is used as the judgment basis for the next new power equipment access or to sort the waiting power equipment.

Preferably, in another embodiment of the present invention, a power distribution end distributes power to a socket end, and the priority levels from high to low are first priority, second priority, third priority and Fourth priority, the adjustment rules for priority are:

The first priority: not actively disconnected within the duration of power consumption, continuous power supply;

Second priority: quickly accept its power application, adjust the power of lower priority to this priority when the power is insufficient;

Third priority: when the power is insufficient, only the power distribution is extracted from the fourth priority;

Fourth priority: The power supply system can access power when there is surplus power that can be allocated, and can be disconnected at any time to release the occupied power.

This embodiment stipulates four priority processing methods, basically according to the rule that high-priority electrical equipment is satisfied first. When the high-priority electricity demand cannot be met, the lowest-priority electrical equipment is disconnected first. The electric power is supplied to the high-priority electrical equipment, and the priority of various electrical equipment is artificially defined to ensure that the electricity demand of the entire charging system is reasonably allocated.

Preferably, in a method for distributing power from a power distribution end to a socket end according to another embodiment of the present invention, the power consumption devices corresponding to the first to fourth priorities are:

First priority: dynamic load power equipment units that can be set for power supply duration in the factory;

Second priority: fast charging pile unit;

Third priority: slow charging pile unit and vehicle charger unit;

Fourth priority: common dynamic load power equipment units in the factory.

In this embodiment, the priorities of various power-consuming devices in the charging system are specified. The definition of this part of priorities can be set according to the needs of the factory and the charging pile operator.

Preferably, a method for distributing power to a socket end by a power distribution end according to another embodiment of the present invention, judging whether disconnecting a low-priority electric device can meet the power demand according to the priority of the ID number includes the following steps :

Determine whether the ID number of the current socket side belongs to the lowest priority, and return a rejection or waiting command to the socket side, otherwise subtract the power required by the electrical equipment of the lowest priority from the power required by the socket side as the new The power required by the power, minus the power that can be released in the higher-level priority until the lower-level priority of the priority stated by the ID number of the socket, if none of the power requirements of the socket can be met, then The socket end returns a rejection or waiting order.

In this embodiment, the rule of subtraction by levels is adopted, and the power is released from the lowest priority until the next priority of the power application, and the higher priority is guaranteed when the lower priority can meet the power demand. Of electrical equipment is not affected.

Preferably, in a method for distributing power from a power distribution end to a socket end according to another embodiment of the present invention, the power of the electric equipment within the duration of power protection is not included in the releasable power.

In this embodiment, the power equipment that has just been connected is actually protected. If there is no power protection duration, it may happen that the power equipment is disconnected by the power distribution end immediately after it is connected, resulting in a poor user experience.

Preferably, in a method for distributing power from a power distribution end to a socket end according to another embodiment of the present invention, the duration of power protection is 1 hour.

Preferably, in another embodiment of the present invention, a power distribution end distributes power to a socket end. The data recorded on the power distribution table of the whole network equipment includes: an ID number at the network socket end, and a power draw divided by the ID number The device priority and the current status of the socket, the length of use, and the amount of electricity used.

In this embodiment, the data on the power allocation table of the entire network is specified, including but not limited to the most basic ID number of the socket end, the priority corresponding to the ID number, that is, the above first to fourth priorities, and the socket According to the power distribution table of the entire network, the power distribution terminal can distribute the electric power reasonably and effectively according to the rules to meet the needs of various power-consuming equipment.

An embodiment provided by the present invention, an apparatus for distributing power from a power distribution end to a socket end, includes the following modules:

Preferably, in another embodiment of the present invention, a power distribution end distributes power to a socket end. The power distribution module includes the following modules:

Preferably, in another embodiment of the present invention, a power distribution end distributes power to a socket end, and the priority in the distribution determination module from high to low is a first priority and a second priority, respectively Level, third priority and fourth priority, the adjustment rules for priority are:

Preferably, in an apparatus for distributing power to a socket end in another embodiment of the present invention, the power consumption devices corresponding to the first to fourth priorities in the distribution determination module are:

Second priority: fast charging pile unit;

Third priority: slow charging pile unit and vehicle charger unit;

Fourth priority: common dynamic load power equipment units in the factory.

Preferably, in another embodiment of the present invention, a power distribution terminal distributes power to a socket terminal, and the distribution determination module determines whether disconnecting a low-priority power-consuming device according to the priority of the ID number can meet the requirement Power requirements include the following steps:

Preferably, in another embodiment of the present invention, a power distribution end distributes power to a socket end. The power of the electric equipment within the power protection duration of the distribution determination module is not included in the releasable power.

Preferably, in a device for distributing electric power from a power distribution end to a socket end according to another embodiment of the present invention, the power protection duration is 1 hour.

Preferably, in another embodiment of the present invention, a power distribution end distributes power to a socket end. The data recorded on the power distribution table of the whole network equipment includes: an ID number at the network socket end, and a power draw divided by the ID number. The device priority and the current status of the socket, the length of use, and the amount of electricity used.

An embodiment provided by the present invention, an apparatus for distributing power from a power distribution end to a socket end, includes a processor and a memory for storing executable instructions of the processor,

1-12, an embodiment provided by the present invention includes a specific charging system solution, which includes a smart socket, a charging system based on the smart socket application factory dynamic power supply, and a socket terminal A method of requesting power from the power distribution end and a method of distributing power from the power distribution end to the socket end will be described below.

The prerequisites are as follows. The transmission and transformation lines of the factory are divided into two parts. One part of the power is supplied to the fixed power equipment in the plant, that is, the entire equipment necessary for the production of the plant. In the following charging system, this part of the line is used as a dynamic power supply line, that is, it is unnecessary for the factory to maintain the surplus power required for peak work.

A charging system applying dynamic power supply in a factory includes a smart socket, a power distribution unit connected to the dynamic power supply line of the factory, and a power-using device connected to the smart socket. The power-using device includes a charging device for charging an electric vehicle and Industrial equipment for dynamic power supply lines in factories, one of the electrical equipment is connected to the intelligent socket, the number of the intelligent sockets is much greater than the number of electrical equipment, the intelligent sockets are connected to all In the power distribution unit, the connection medium is an optical fiber, and the power distribution unit is an electric power dispatch center.

In terms of the electrical equipment: the charging equipment includes fast charging piles and slow charging piles, and the industrial equipment of the dynamic power supply line includes dynamic load power equipment and common dynamic load power equipment that can be set for power supply duration. The data of all the above-mentioned types of electrical equipment are greater than one, the number of the fast charging pile is less than the number of slow charging piles, the number of smart sockets not connected to the electrical equipment is greater than the number of slow charging piles, and The number of dynamic load power equipment and common dynamic load power equipment that can be set for power supply time is set according to the actual factory. Different factories have different production scales, which can be set according to actual conditions.

The smart socket, under the most basic functions, includes a socket socket, a communication module and a power consumption control module, the communication module includes a power application module and a power application shielding module, and the power control module includes a storage ID The memory chip and internal power supply switch also include a power meter for detecting electric energy and a voltage detection module for detecting the battery voltage of the electric vehicle. The communication module is connected to the power consumption control module.

Depending on the connected electrical equipment, some modules are added to the basic functions of the smart socket. For ordinary dynamic load power equipment in the factory, the basic functions of the smart socket can be used. For dynamic loads that can be set for power supply duration For power equipment, the smart socket also includes a power duration setting module, which can manually set the working time and duration, and automatically power off when the working duration is reached. For charging equipment, the smart socket also includes a two-dimensional code display module , A charging rectifier module, a charging connector locking module, and a rainproof shed. For an on-board charger of an electric vehicle, the smart socket further includes a two-dimensional code display module, a charging connector locking module, and a rainproof shed.

The charging system further includes a monitoring socket provided on the fixed power supply line of the factory, the monitoring socket is connected to the power equipment of the fixed power supply line of the factory and is simultaneously connected to the power distribution unit, and the monitoring socket includes a manual application The power consumption module is used to request the power distribution unit to greatly reduce the load on the dynamic power supply line when the power equipment on the fixed power supply line is started. In fact, the monitoring socket is a smart socket that does not have the function of actively applying for electricity, and on the basis of this, the manual application module for electricity is added.

The above is the connection structure of the charging system, and the working method is described in detail below:

Referring to FIG. 12, a method for a socket end to request power from a power distribution end and a method for a power distribution end to distribute power to the socket end include the following steps:

S100: Socket end detects the access of electrical equipment;

S200: The socket end sends the current socket ID number to the power distribution end, communicates with the power distribution end, and exchanges instructions and data with the power distribution end;

S300: The power distribution end performs a handshake with the socket end to obtain the ID number sent by the socket end;

S400: The power distribution end searches for the power distribution table of the whole network equipment according to the current ID number, and obtains the priority of the ID number;

S500: The power distribution end detects the power margin of the power supply system;

S600. If the power margin of the power supply system is greater than or equal to the current power demand of the outlet, the power distribution end distributes power to the socket. If the power margin of the power supply system is less than the current power demand of the outlet, the power distribution end according to the ID number The priority of the system determines whether disconnecting the low-priority electrical equipment can meet the power demand. If yes, disconnect the low-priority electrical equipment and distribute power to the outlet. Otherwise, return or refuse to the outlet. command;

S700: The power distribution end updates the power distribution table of the whole network equipment;

S800: If the electricity application is passed, the socket end receives the power transmission from the power distribution end and supplies power to the electrical equipment; if the electricity application is not passed, the outlet end enters the waiting or refused access state.

The data recorded on the power distribution table of the entire network includes: the ID number at the network socket end, the priority of the power-taking equipment divided by the ID number, and the current in-use status of the socket end, the duration of use, and the amount of electricity used.

When the electricity application is approved, the working process of the socket end is as follows for different electricity-using equipment:

For charging equipment and on-board chargers, the socket end performs the following steps after receiving power distribution:

S810: Turn on the internal power supply switch;

S820: lock the plug in the socket end;

S830: record power consumption data;

S840: monitor the value of the battery voltage;

S850: Continuously send data such as power consumption data, charging duration and battery voltage value;

S860: If a power-off command from the power distribution end is received or the battery is full, unlock the plug and disconnect the internal power switch;

S870: Send power-off status information to the power distribution end.

In another case, if the charging plug locking structure is not provided at the socket end, the two actions of unlocking the plug in steps S820 and S860 are omitted in the above step, in this case, another power off of S860 The method is as follows: the user pulls out the plug, and the internal power switch at the socket end is turned off.

For dynamic load power equipment that can be set for power supply duration, the socket end performs the following steps after getting power supply distribution:

S810: Turn on the internal power supply switch;

S820: Start countdown;

S830: Continuously send data such as electricity consumption data and electricity consumption duration;

S840: End the countdown;

S850: Turn off the internal power supply switch;

S860: Send power-off status information to the power distribution end.

For ordinary dynamic load power equipment, the socket end performs the following steps after getting power distribution:

S810: Turn on the internal power supply switch;

S820: Continuously send data such as electricity consumption data and electricity consumption duration;

S830: If the power-off command of the power distribution end is received or the plug is pulled out, turn off the internal power supply switch;

S840: Send power-off status information to the power distribution end.

With regard to the rules of power allocation in step S600, priority is defined for actual electrical equipment according to needs, and the priorities, from high to low, are the first priority, the second priority, the third priority, and the fourth Priority, the electrical equipment corresponding to the first to fourth priority is:

The first priority: dynamic load power equipment units that can be set for power supply duration in the factory;

Second priority: fast charging pile unit;

Third priority: slow charging pile unit and vehicle charger unit;

Fourth priority: common dynamic load power equipment units in the factory.

The adjustment rules for priority are:

Therefore, using the above adjustment rule, when the power margin of the power supply system in step S600 is less than the current power requirement of the outlet, the power adjustment is specifically:

If the power-using equipment of the power-using application belongs to the fourth priority level, it will return a refusal or waiting command to the outlet, if not, go to the next step;

According to the required power, look up the network equipment of the fourth priority in the power allocation table of the entire network, and determine whether one or more power-consuming equipment of this type can be disconnected to meet the required power. If so, disconnect one or A plurality of electric appliances of this priority level supply the released electric power to the socket end of the electric application, if not, the required power is subtracted from the electric power that can be released by the priority, and the result is taken as the new required power, Find the power that can be released in the third priority level, and so on, until you find a lower priority than the electrical equipment of the electricity application, if you can not meet the power demand of the electricity application, then go to the outlet The terminal returns a rejection or waiting order.

During the above steps, establish a power protection duration for the power equipment that has just been connected for a period of time, that is, when the power equipment is connected to the socket to obtain power supply, the power distribution terminal cannot be disconnected for a period of time Turn on the power supply of the electrical equipment. In this embodiment, the duration of power protection is set to 1 hour.

This embodiment implements a cooperation mode between the factory and the charging operator. Based on the actual situation of the charging system and the factory, its working modes include but are not limited to the following two:

(1) Dynamic shutdown mode:

The factory is equipped with large-scale dynamic load power equipment, all of which are connected to the power distribution unit through the smart socket, as a dynamic load power group, the group can be quickly started and shut down, dynamic start and stop, the purpose is to quickly Respond to the electricity demand of the charging equipment and the on-board charger of the electric vehicle.

In application:

When the system detects that there is no electric vehicle charging or less charging vehicles, the power of the dynamic power supply line is mainly absorbed by a large amount of the industrial equipment of the cooperative factory, which is used to generate economic benefits and avoid idle power supply lines;

When the system detects a large amount of electric vehicle charging, part of the power of the dynamic power supply line is distributed to the charging device and the on-board charger of the electric vehicle, and the other part of the power is under the unified control of the power distribution subunit. The amount of the industrial equipment absorbed.

(2) Mode of night shutdown:

The control strategy of this mode is that during the daytime, the charging equipment does not work, and the power of the dynamic power supply line is all absorbed by the industrial equipment of the factory, which is used to generate economic benefits and avoid idle power supply lines; at nighttime, the factory equipment is in In the state of partial shutdown or total shutdown, the power of the dynamic power supply line is mainly used for the charging equipment to achieve night charging, and the remaining power is distributed to the small-scale industrial equipment through a power distribution subunit.

Partial shutdown at night, mainly for ordinary dynamic load power equipment in the factory, the power distribution unit sends a command to the electricity application shielding module connected to the smart socket of the ordinary dynamic load power equipment, so that it cannot be accessed at night The dynamic power supply line uses electricity, and some of the industrial equipment and / or power equipment of the fixed power supply line are still in operation in the factory; on the other hand, all nighttime shutdowns, for all the industrial equipment in the factory, the power distribution unit sends Instruct the smart socket connected to the industrial equipment to activate the power application shielding module, which includes the common dynamic load power equipment and the dynamic load power equipment with a set length of time, all of which are shut down, including fixed The power equipment on the power supply line also enters the shutdown state, and sends the shutdown status information to the power distribution unit. In this state, if the power equipment on the fixed power supply line is to be restarted, such as the morning start, the monitoring socket Apply to the power distribution unit through the manual power application module To apply for restoration of power supply, the power distribution unit quickly disconnects the power supply of the network equipment in batches so that the idle power of the line is greater than the power requirement for startup, and feeds back to the monitoring socket, and then restores the power supply of the fixed power supply line to avoid line overload .

The charging system is configured according to the number of devices. A practical example of this embodiment may be: a factory area of one square kilometer, a total power transmission and transformation power of 1000kw, 800 smart sockets, 10 slow-charging piles, 1 A 100kw fast-charging pile, 10 sets of 100kw high energy-consuming power equipment.

The charging system is configured according to the type of factory. A few practical examples of this embodiment may be:

1. Glass manufacturing plant: The mixed equipment of glass material is set as ordinary dynamic load power equipment as a common dynamic load; part of the electric kiln is connected to the fixed power supply line, and the other part of the electric kiln is set to be settable Long-term dynamic load power equipment; glass-making equipment for liquid glass, connected to fixed power supply lines;

2. Metal powder preparation factory: metal melting furnace, set as dynamic load power equipment with settable duration; vortex grinder of metal microspheres, as ordinary dynamic load, set as ordinary dynamic load power equipment;

3. Powder metallurgy plant: powder material mixing and die-pressing equipment, as ordinary dynamic load, set as ordinary dynamic load power equipment; powder metallurgy sintering furnace, set as dynamic load power equipment with settable duration;

4. Ceramic preparation plant: ceramic material mixing and mold pressing equipment, as ordinary dynamic load, set as ordinary dynamic load power equipment; part of the electric kiln is connected to the fixed power supply line, and the other part of the electric kiln is designed Dynamic load power equipment that can be set for a long time;

5. Liquid nitrogen preparation plant: air purification equipment, connected to the fixed power supply line; air compressor, as an ordinary dynamic load, set as ordinary dynamic load power equipment; refrigeration liquefaction equipment, connected to the fixed power supply line;

6. Mechanical parts processing plant: The automatic processing equipment for mechanical parts is set as ordinary dynamic load power equipment as ordinary dynamic load.

Through the above embodiment, the charging system has the following beneficial effects. By introducing a low-cost smart socket, a large number of slow-charging charging facilities are transferred to the vehicle side, so that operators avoid large-scale construction of charging facilities and operators avoid capital accumulation Difficulties with repayment, effectively reduce the idle rate of charging equipment; based on the binary time-sharing mode, the utilization rate of factory lines is improved, and the idleness of power resources is avoided. Overall, the charging system has a simple structure and relatively high cost Low, can realize the function of smart grid.

The above are only preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments, as long as they achieve the technical effects of the present invention by the same means, they should fall within the protection scope of the present invention.

Claims

A method for a socket end to request power from a power distribution end is characterized in that it includes the following steps:

Check the access of electrical equipment;

Send the ID number of the current socket end to the power distribution end, communicate with the power distribution end, and exchange instructions and data with the power distribution end;

If the electricity application is approved, it will receive the power transmission from the power distribution end and supply power to the electricity-using equipment.
A device for requesting electricity from a power distribution end by a socket end is characterized by comprising the following modules:

Socket socket module, used to detect the access of electrical equipment;

The socket communication module is used to send the ID number of the current socket to the power distribution end, communicate with the power distribution end, and exchange instructions and data with the power distribution end;

Power supply module: used to receive power transmission from the power distribution end and supply power to power-using equipment if the application for electricity is passed.
An intelligent socket, including a socket socket, is characterized in that it further includes a communication module and a power consumption control module, the communication module includes a power application module and a power application shielding module, and the power control module includes a storage ID No. memory chip and internal power supply switch, the communication module is connected to the power control module.
A method for distributing electric power from a power distribution end to a socket end is characterized in that it includes the following steps:

Communicating handshake with the socket to obtain the ID number sent by the socket;

According to the priority of the ID number, adjust the power distribution of the network equipment and determine whether to distribute power to the outlet according to the adjustment result.
A method for distributing power to a socket end according to claim 4, wherein the method for adjusting the power distribution of the network equipment includes the following steps:

According to the current ID number, search the power allocation table of the whole network equipment to obtain the priority of the ID number;

Check the power margin of the power supply system;

If the power margin of the power supply system is greater than or equal to the current power demand of the outlet, the power is allocated to the socket. If the power margin of the power supply system is less than the current power demand of the outlet, the disconnection priority is determined according to the priority of the ID number. Whether the level of power equipment can meet the power demand, is to disconnect the low-priority power equipment and distribute power to the outlet, otherwise return a rejection or waiting command to the outlet;

Update the power allocation table of the whole network.
A device for distributing electric power from a power distribution end to a socket end is characterized by comprising the following modules:

The communication module at the distribution end is used for handshake with the socket to obtain the ID number sent by the socket;

The power distribution module adjusts the power distribution of the network equipment according to the priority of the ID number and determines whether to distribute power to the outlet according to the adjustment result.
An apparatus for distributing power to a socket end at a power distribution end is characterized by comprising a processor and a memory for storing executable instructions of the processor,

The processor performs the following steps according to instructions in the memory:

Communicating handshake with the socket to obtain the ID number sent by the socket;

According to the priority of the ID number, adjust the power distribution of the network equipment and determine whether to distribute power to the outlet according to the adjustment result.
A charging system applying dynamic power supply in a factory, characterized by comprising a smart socket, a power distribution unit connected to the dynamic power supply line of the factory, and a power-using device connected to the smart socket, the power-using device includes electric vehicle charging Charging equipment and industrial equipment used for factory dynamic power supply lines, each of the electrical equipment is connected to the intelligent socket, the number of the intelligent sockets is greater than or equal to the number of electrical equipment, the intelligent sockets are Connected to the power distribution unit.
The charging system using dynamic power supply of a factory according to claim 8, wherein the charging equipment includes a fast charging pile and / or a slow charging pile, and the industrial equipment of the dynamic power supply line includes a power supply duration that can be set For dynamic load power equipment and / or general dynamic load power equipment, more than one of each of the charging devices may be provided, and more than one of each of the industrial equipment may be provided.
The charging system applying dynamic power supply of a factory according to claim 8, wherein the smart socket is connected to the power distribution unit through the Internet or a local area network in the factory, and the power distribution unit is a cloud server or Power dispatch center.