An automatic networking fast charging system and control method based on household electricity

Abstract

The present application provides an automatic networking fast charging system based on household electricity, comprising: several first detection modules, several power supply circuits, a power distribution module, several charging piles and a control module; each power supply circuit is connected to a household circuit; the power supply circuit includes an access switch, a rectifier and filter module and a first power regulation module; the access switch is connected to the household circuit to access the charging power supply; the rectifier and filter module are respectively connected to the access switch and the first power regulation module; the power distribution module is provided with several input terminals and output terminals, each input terminal is connected to a first power regulation module, and each output terminal is connected to a charging pile; the first detection module is installed on the household circuit bus; the control module is respectively connected to the first detection module, the access switch, the first power regulation module, the power distribution module and the charging pile; the effect of increasing the charging power and accelerating the charging speed is achieved without modifying the existing household circuit.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle charging, and in particular to an automatic networking fast charging system based on household electricity and a control method thereof. Background Art

[0002] With the development of new energy vehicle technology, the range and fuel consumption of new energy vehicles have been continuously improved and reduced respectively. Therefore, new energy vehicles have become popular on a large scale, and the proportion of vehicles owned in society has also increased, which has played a good role in promoting energy conservation and emission reduction in my country.

[0003] However, unlike the widespread adoption of new energy vehicles (NEVs), the technological development of charging infrastructure has lagged behind. Currently, to accommodate diverse usage patterns, NEVs generally accept both slow charging with household electricity and fast charging at commercial charging stations. While commercial charging stations can increase charging speeds, their high power requirements not only place high demands on the performance of the charging equipment, but also require the grid company to lay dedicated distribution lines and dedicated commercial space. This has limited their penetration. Currently, the most popular charging method is slow charging with household electricity. This involves installing a charging station near one's home or parking space, then running a wire from one's home electrical system to the charging station. Especially in cities, many car owners have their own private underground or surface parking spaces. After purchasing a car, they have the 4S dealership install a charging station next to the parking space. The property management company then arranges for an electrician to connect the wires from the home meter to the charging station. The advantages of using household electricity are that it does not require a dedicated site, does not require the modification of existing community distribution lines, and does not require implementation and approval from the power supply bureau. It is easy to implement and install, and it is also convenient to use after installation. The price of household electricity also makes the cost of using the car low; but the disadvantages are also obvious, that is, due to the power limitation of the household circuit, fast charging cannot be performed, which cannot meet the fast charging needs of some people.

[0004] In view of this, there is a need for an automatic networking fast charging system and control method based on household electricity. Summary of the Invention

[0005] In response to the problem in the prior art that fast charging cannot be performed due to power limitations of household circuits, the present invention provides an automatic networked fast charging system and control method based on household electricity, which can solve the problem of fast charging being unable to be performed due to power limitations of household circuits. The specific technical solution is as follows:

[0006] An automatic networked fast charging system based on household electricity, comprising: a plurality of first detection modules, a plurality of power supply circuits, a power distribution module, a plurality of charging piles and a control module; each power supply circuit is connected to a household circuit; the power supply circuit comprises an access switch, a rectifier and filter module and a first power regulation module; the access switch is connected to the household circuit to access the charging power supply; the rectifier and filter module are respectively connected to the access switch and the first power regulation module to rectify and filter the charging power supply and then input it into the first power regulation module for charging power adjustment; the power distribution module has a plurality of input terminals and output terminals, each input terminal is connected to a first power regulation module The blocks are connected, and each output end is connected to a charging pile to access various charging power sources and distribute them to the charging piles that need charging as needed; the first detection module is installed on the household circuit bus to detect the total household power consumption; the control module is respectively connected to the first detection module, the access switch, the first power regulation module, the power distribution module and the charging pile to control the operation of each module according to control needs; the power supply of each household is aggregated to the power distribution module after sorting and filtering, and then distributed to each required charging pile as needed by the power distribution module, so as to achieve the effect of increasing the charging power and accelerating the charging speed without modifying the existing household circuit.

[0007] Furthermore, it also includes a cloud platform and a client; the cloud platform is connected to the control module and the client respectively.

[0008] Furthermore, it also includes an energy storage device; the energy storage device is connected to the power distribution module and the control module respectively.

[0009] Furthermore, it also includes a photovoltaic power generation module; the photovoltaic power generation module is connected to the control module and the power distribution module respectively.

[0010] Furthermore, it also includes a diesel-gasoline power generation device; the diesel-gasoline power generation device is connected to the power distribution module through a power supply circuit; the diesel-gasoline power generation device is connected to the control module.

[0011] Furthermore, the power distribution module includes at least two distribution units; each distribution unit is provided with an input end, an output end, a shared end and a control end; the shared ends of the distribution units are connected to each other; the input end of the distribution unit is connected to the first power regulation module, and the output end is connected to the charging pile; the control module is connected to the control end of the distribution unit to control whether the input end is connected to the output end or the shared end, and to control whether the output end is connected to the input end or the shared end.

[0012] Furthermore, the distribution unit includes a MOS transistor Q5, a MOS transistor Q6, a MOS transistor Q7, and a NOT gate D5; the output end of the MOS transistor Q6 is connected to the input end of the MOS transistor Q7 to serve as a shared end of the distribution unit; the input end of the MOS transistor Q5 is connected to the input end of the MOS transistor Q6 to serve as an input end A1 of the distribution unit; the output end of the MOS transistor Q5 is connected to the output end of the MOS transistor Q7 to serve as an output end A2 of the distribution unit; the output end of the NOT gate D5 is connected to the control end of the MOS transistor Q5, and the input end of the NOT gate D5 is connected to the control ends of the MOS transistors Q6 and Q7 to serve as the control end of the distribution unit.

[0013] Furthermore, the charging pile includes a second power regulating module and a charging gun; the input end of the second power regulating module is connected to the output end of the distribution unit; and the output end of the second power regulating module is connected to the charging gun.

[0014] Furthermore, the charging pile is provided with a second detection module for detecting the charging power and charging amount output by the charging pile.

[0015] A control method for an automatic networked fast charging system based on household electricity is applied to the automatic networked fast charging system based on household electricity described above, and specifically comprises the following steps:

[0016] The control module detects the total power consumption of the household circuit through the first detection module, and calculates whether the household circuit is connected to the system and the power output after connection to the system. If it is calculated that the household circuit currently has no available charging power, the access switch is controlled to be disconnected; if it is calculated that charging power is available, the access switch is controlled to be closed, and the first power regulation module is controlled to output the available charging power.

[0017] The control module calculates the average current shared charging power and compares it with the available charging power of the charging pile. If the available charging power of the charging pile is greater, the power distribution unit is controlled to use the charging line of the charging pile alone. If the available charging power of the charging pile is less, the power distribution unit is controlled to connect the charging line of the charging pile to the shared circuit and connect the charging pile to the shared circuit to enjoy the higher charging power.

[0018] The control module calculates the current real-time total electricity cost of the system based on the real-time charging power shared by each company. At the same time, it calculates the sharing ratio of each charging pile based on the real-time power of the charging piles currently using the shared circuit, and calculates the real-time charging cost of each charging pile based on the sharing ratio. Through real-time pricing, the cost that each charging pile should bear under various power changes of the charging circuit can be accurately measured.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This solution connects the power supply circuit with each household's household circuit to obtain a large total charging power capacity, especially in some urban communities, where the total number of households often reaches thousands, and each household generally has a lot of surplus power. Therefore, it can not only have huge charging power to automatically network and quickly charge new energy vehicles and electric vehicles, saving charging time, but also fully develop and utilize the residents' electricity circuits, and can also reduce the need to lay additional dedicated charging lines and dedicated charging places, saving social resources and improving social and economic benefits.

[0021] 2. By setting up an additional energy storage device, some electricity can be stored in the energy storage device during low-peak periods of household electricity consumption, such as at night and on weekdays. The energy storage device can be discharged during peak periods of household electricity consumption, such as in the evening and on weekends, and a high charging power can still be maintained.

[0022] 3. The rooftops, green areas, and public sunshade areas of each residential area are now planned to be unused. By laying photovoltaic power generation systems in these areas and connecting them to power distribution modules, it can help maintain a higher charging power during peak hours of electricity consumption during the day, and also save households from purchasing electricity.

[0023] 4. The power distribution unit in the power distribution module, through clever circuit design, can decide to charge with its own line when its own surplus power is large, and can use a shared circuit for charging when the contributed charging power is high, realizing a more humane and flexible management method. Moreover, the interlocking switching between the two modes can be achieved through a control signal, which is more reliable and safe.

[0024] 5. By adding a cloud platform and client, and setting up a second power regulation module in the charging pile, users can more easily set the charging parameters of each charging pile and conduct remote control.

[0025] 6. The charging scenarios in this application are diverse. The number and power of connected household circuits may change at any time. The number and power of charging piles required for charging may also change. Therefore, the charging power allocated to each charging pile may change at any time. Therefore, through real-time billing, it is possible to accurately measure the cost that each charging pile should share. At the same time, considering that there will be circuit losses, if the electricity cost is simply calculated based on the charging capacity of each charging pile, it is inevitable that the electricity cost of the household being supplied cannot be shared. Therefore, based on the power supply fee, the electricity cost can be shared according to the real-time power and electricity consumption ratio of each charging pile, which can achieve a more fair and just effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0027] Figure 1 This is a schematic diagram of the structure of an automatic networking fast charging system based on household electricity;

[0028] Figure 2 It is a structural diagram of the rectifier and filter module;

[0029] Figure 3 is a structural diagram of a first power regulation module;

[0030] Figure 4 This is a structural diagram of the power distribution module. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0033] It should also be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0034] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0035] Example 1

[0036] like Figure 1The figure shows a schematic diagram of the structure of an automatic networked fast charging system based on household electricity, which includes: a plurality of first detection modules, a plurality of power supply circuits, a power distribution module, a plurality of charging piles and a control module; each power supply circuit is connected to a household circuit; the power supply circuit includes an access switch, a rectifier and filter module and a first power regulation module; the access switch is connected to the household circuit to access the charging power supply; the rectifier and filter module are respectively connected to the access switch and the first power regulation module to rectify and filter the charging power supply and then input it into the first power regulation module for charging power adjustment; the power distribution module has a plurality of input terminals and output terminals, each input terminal is connected to a first The power regulation module is connected, and each output end is connected to a charging pile to access various charging power sources and distribute them to the charging piles that need to be charged as needed; the first detection module is installed on the household circuit bus to detect the total household power consumption; the control module is respectively connected to the first detection module, the access switch, the first power regulation module, the power distribution module and the charging pile to control the operation of each module according to control needs; the power supply of each household is aggregated to the power distribution module after sorting and filtering, and then distributed to each required charging pile by the power distribution module as needed, so as to achieve the effect of increasing charging power and accelerating charging speed without modifying the existing household circuit.

[0037] This solution connects the power supply circuit with each household's household circuit to obtain a large total charging power capacity, especially in some urban communities, where the total number of households often reaches several thousand, and each household generally has a lot of surplus power. Therefore, it can not only have huge charging power to automatically network and quickly charge new energy vehicles and electric vehicles, saving charging time, but also fully develop and utilize the residents' electricity circuits, and can also reduce the laying of additional dedicated charging lines and dedicated charging places, saving social resources and improving social and economic benefits.

[0038] In a specific implementation, the access switch may be a common electromagnetic switch or a switch that can achieve on-off control.

[0039] In specific implementation, Figure 2As shown, the rectifier and filter module includes a diode D51, a diode D52, a diode D53, a diode D54, a capacitor EC1, a capacitor EC2, a capacitor EC3, a capacitor EC4 and an inductor L1; the anode of the diode D51 is connected to the cathode of the diode D54 and serves as the first input end of the rectifier and filter module; the cathode of the diode D51 is connected to the cathode of the diode D52, the first end of the inductor L1 and the first end of the capacitor EC1; the anode of the diode D52 is connected to the cathode of the diode D53 and serves as the second input end of the rectifier and filter module; the anode of the diode D54 is connected to the anode of the diode D53 and then grounded; the second end of the inductor L1 is connected to the first end of the capacitor EC2, the first end of the capacitor EC3 and the first end of the capacitor EC4, and is connected to the first power regulation module as the output end of the rectifier and filter module; the second end of the capacitor EC1 is connected to the second end of the capacitor EC2, the second end of the capacitor EC3 and the second end of the capacitor EC4 and then grounded. This circuit utilizes a rectifier bridge circuit consisting of diodes D51, D52, D53, and D54, connected in series with a filter circuit consisting of capacitors EC1, EC2, EC3, EC4, and inductor L1, to achieve bidirectional AC / DC conversion. Together with the first power regulation module, this creates a highly integrated design and a layered filtering protection strategy, effectively preventing damage to the device caused by high instantaneous currents.

[0040] In a specific embodiment, the rectifier and filter module further includes an input unit; the input unit includes a capacitor CX1, a common-mode inductor LF1, a resistor R58, a resistor R59, a resistor R60, and a resistor R61; the common-mode inductor LF1 is provided with a coil LA and a coil LB; the first end of the capacitor CX1 is connected to the first end of the coil LA, and the second end is connected to the first end of the coil LB; the first end of the resistor R58 is connected to the first end of the resistor R59, the first end of the resistor R60, and the first end of the resistor R61; the second end of the resistor R58 is connected to the second end of the resistor R59, the second end of the coil LA, and the first input end of the rectifier and filter module; the second end of the resistor R60 is connected to the second end of the resistor R61, the second end of the coil LB, and the second input end of the rectifier and filter module. The common-mode inductor LF1 is used to improve EMC effects, and the capacitor CX1 is used to improve EMC effects and eliminate sparks through filtering functions. Resistors R58, R59, R60, and R61 are current discharge resistors, which constitute a current discharge circuit. When the input AC power is cut off, the energy on the capacitor CX1 is discharged through the discharge resistors.

[0041] like Figure 3As shown, the first power regulation module includes a processor U1, a capacitor C3, a resistor R10, a transformer T1, a diode D4, a resistor R18, and a MOS tube Q4; the transformer T1 is provided with a primary winding T1-A, a secondary winding T1-B, and an auxiliary winding T1-C; the first end of the capacitor C3 is connected to the first end of the resistor R10 and the first end of the primary winding T1-A, and serves as the input end VIN1 of the first power regulation module; the second end of the primary winding T1-A is connected to the anode of the diode D4 and the D pin of the processor U1; the two The cathode of diode D4 is connected to the first end of resistor R18; the second end of resistor R18 is connected to the second end of capacitor C3 and the second end of resistor R10; the first end of secondary winding T1-B serves as the output of the first power regulation module and is connected to the input of the power distribution module; the second end of secondary winding T1-B is connected to the drain of MOS transistor Q4; the source of MOS transistor Q4 is grounded, and the gate is connected to the SR pin of processor U1 to control the power output of the first power regulation module by controlling the on / off state of MOS transistor Q4. Processor U1 also has an S pin connected to ground PGND. The D and S pins are connected to the source and drain of the internal MOS transistor, respectively, and the power input of the first power regulation module is controlled by controlling the on / off state of the S and D pins.

[0042] The first power regulation module includes a resistor R1, a capacitor C1, a diode D2, a capacitor C28, a capacitor C12, a MOS transistor Q1, a resistor R9, a capacitor C24, and a capacitor C32. A first end of the capacitor C32 is connected to the input terminal VIN1, and a second end is connected to the first end of the capacitor C28, the first end of the capacitor C12, and the first end of the auxiliary winding T1-C, and then connected to the ground (PGND). The second end of the auxiliary winding T1-C is connected to the first end of the resistor R1 and the anode of the diode D2. The second end of the resistor R1 is connected to the first end of the capacitor C1. The second end of the capacitor C1 is connected to the cathode of the diode D2, the second end of the capacitor C28, the second end of the capacitor C12, and the drain of the MOS transistor Q1. The source of the MOS transistor Q1 is connected to the first end of the resistor R9. The second end of the resistor R9 is connected to the gate of the MOS transistor Q1 and the first end of the capacitor C24, and then connected to the BPP pin of the processor U1 for power supply. The second end of the capacitor C24 is grounded (PGND). This circuit allows the first power regulation module to supply power to the input of the power distribution module while also providing operating power to its own processor, U1, through auxiliary winding T1-C. The power from auxiliary winding T1-C is rectified by diode D2 and filtered by capacitors C12 and C28. Resistor R1 and capacitor C1 form a circuit to absorb high-frequency noise. After rectification, the auxiliary power is supplied to processor U1 through MOS transistor Q1 and resistor R9. Processor U1's BPP pin is the power supply pin. Resistor R9 acts as a current limiter to prevent damage to processor U1. Capacitor C24 acts as a bypass capacitor for the BPP pin.

[0043] Furthermore, the first power regulation module also includes a resistor R13, a capacitor C11, and a resistor R3. The first terminal of resistor R3 is connected to the source of MOS transistor Q4, and the second terminal is connected to the first terminal of capacitor C11. The second terminal of capacitor C11 is connected to the first terminal of resistor R13. The second terminal of resistor R13 is connected to the FWD pin of processor U1. Capacitor C11 and resistor R3 are used to absorb spikes from MOS transistor Q4 and improve EMI. FWD is the detection pin for synchronous rectification.

[0044] Furthermore, the first power regulation module also includes a capacitor EC5, a capacitor C53, a resistor R14, and a resistor R2; the first end of capacitor EC5 is connected to the first end of the secondary winding T1-B, the second end of capacitor EC5 is connected to the first end of capacitor C53 and then to the GND pin of processor U1, the second end of capacitor C53 is connected to the first end of resistor R2 and then to the IS pin of processor U1, the second end of resistor R2 is connected to the first end of resistor R14 and then to ground GND, and the second end of resistor R14 is connected to the source of MOS transistor Q4 and then to ground SGND2. Capacitor EC5 has a filtering function, resistor R14 is an overcurrent detection resistor, and resistor R2 is a current limiting resistor. The detection signal enters the processor U1 through resistor R2 and the IS pin, and capacitor C53 absorbs noise. This circuit is used to perform output overcurrent detection on the first power regulation module.

[0045] Furthermore, the first power regulation module also includes a diode D100, a resistor R100 and a capacitor C100; wherein, the diode D100 is connected in series between the first end of the secondary winding T1-B and the first end of the capacitor EC5, and the anode of the diode D100 is connected to the first end of the secondary winding T1-B; the resistor R100 and the capacitor C100 are connected in series and then connected in parallel at both ends of the diode D100; the diode D100, the resistor R100 and the capacitor C100 constitute a rectifier circuit for performing half-wave rectification.

[0046] The above-mentioned first power regulation module and rectifier filter module circuits are only examples and do not constitute a limitation to the solution of the present application. Other existing technology circuits that can play the same role can also be used to replace them after reasonable changes.

[0047] In a specific implementation, the power distribution module includes at least two distribution units, and N distribution units are used in this embodiment; each distribution unit is provided with an input end, an output end, a shared end and a control end; the shared ends of the N distribution units are interconnected to form a shared circuit for power aggregation; the input end of the distribution unit is connected to a first power regulation module, and the output end is connected to a charging pile; the control module is connected to the control end of the distribution unit to control whether the input end is connected to the output end or the shared end, and to control whether the output end is connected to the input end or the shared end.

[0048] Furthermore, the first distribution unit includes MOS transistors Q5, Q6, Q7, and a NOT gate D5. The output end of MOS transistor Q6 is connected to the input end of MOS transistor Q7 and serves as the shared end of the distribution unit. The input end of MOS transistor Q5 is connected to the input end of MOS transistor Q6 and serves as the input end A1 of the distribution unit, which is connected to the output end A1 of the first power regulation module. The output end of MOS transistor Q5 is connected to the output end of MOS transistor Q7 and serves as the output end A2 of the distribution unit. The output end of NOT gate D5 is connected to the control end of MOS transistor Q5, and the input end of NOT gate D5 is connected to the control ends of MOS transistors Q6 and MOS transistors Q7 and serves as the control end of the distribution unit. When the control module outputs a high-level signal to the control end of the distribution unit, MOS transistor Q5 is turned off, and MOS transistors Q6 and Q7 are turned on. The charging power of the household circuit enters the shared circuit and is combined with other household power sources to obtain a higher total charging power, which then enters the charging pile from the output end for charging. When the control module outputs a low-level signal to the control terminal of the distribution unit, MOS transistor Q5 turns on and MOS transistors Q6 and Q7 turn off. The charging power from the household circuit goes directly to the charging pile for charging, bypassing the shared circuit. The power distribution unit in the power distribution module, through clever circuit design, can decide to charge using its own circuit when its own surplus power is large, or use the shared circuit when the shared circuit charging power is high. This achieves a more user-friendly and flexible management method, ensuring that the charging power is always at the maximum state. Furthermore, a single control signal can achieve interlocking switching between the two modes, making it more reliable and safer.

[0049] Furthermore, the second distribution unit includes MOS transistors Q8, Q9, Q10, and a NOT gate D6. The output of MOS transistor Q9 is connected to the input of MOS transistor Q10 and serves as a shared terminal of the distribution unit. The input of MOS transistor Q8 is connected to the input of MOS transistor Q9 and serves as input terminal B1 of the distribution unit, which is connected to output terminal A1 of another first power regulation module. The output of MOS transistor Q8 is connected to the output of MOS transistor Q9 and serves as output terminal B2 of the distribution unit. The output of NOT gate D6 is connected to the control terminal of MOS transistor Q8, and the input of NOT gate D6 is connected to the control terminals of MOS transistors Q9 and MOS transistors Q10 and serves as the control terminal of the distribution unit. When the control module outputs a high-level signal to the control terminal of the distribution unit, MOS transistor Q8 is turned off, and MOS transistors Q9 and Q10 are turned on. The charging power of the household circuit enters the shared circuit and is combined with other household power sources to obtain a greater total charging power, which then enters the charging pile from the output terminal for charging. When the control module outputs a low-level signal to the control end of the distribution unit, the MOS tube Q8 is turned on, and the MOS tubes Q9 and Q10 are turned off. The charging power of the household circuit directly enters the charging pile for charging without passing through the shared circuit.

[0050] Furthermore, the Nth distribution unit includes MOS transistors Q11, Q12, Q13, and a NOT gate D7. The output of MOS transistor Q12 is connected to the input of MOS transistor Q13 and serves as the shared terminal of the distribution unit. The input of MOS transistor Q11 is connected to the input of MOS transistor Q12 and serves as the input terminal N1 of the distribution unit, which is connected to the output terminal A1 of the Nth first power regulation module. The output of MOS transistor Q11 is connected to the output of MOS transistor Q13 and serves as the output terminal N2 of the distribution unit. The output of NOT gate D7 is connected to the control terminal of MOS transistor Q11, and the input of NOT gate D7 is connected to the control terminals of MOS transistors Q12 and Q13 and serves as the control terminal of the distribution unit. When the control module outputs a high-level signal to the control terminal of the distribution unit, MOS transistor Q11 is turned off, and MOS transistors Q12 and Q13 are turned on. The charging power of the household circuit enters the shared circuit and is combined with other household power sources to obtain a higher total charging power, which then enters the charging pile from the output terminal for charging. When the control module outputs a low-level signal to the control end of the distribution unit, the MOS tube Q11 is turned on, and the MOS tubes Q12 and Q13 are turned off. The charging power of the household circuit directly enters the charging pile for charging without passing through the shared circuit.

[0051] Furthermore, the shared ends of the three distribution units are connected to each other to form a shared circuit.

[0052] Furthermore, the system also includes a cloud platform and a client; the cloud platform is connected to the control module and the client, respectively. By adding the cloud platform and the client, and setting a second power regulation module in the charging pile, users can more easily set the charging parameters of each charging pile and perform remote control.

[0053] Furthermore, the system also includes an energy storage device, which is connected to the power distribution module and the control module. By adding an energy storage device, some electricity can be stored in the energy storage device during low-peak periods of household electricity consumption, such as evenings and weekdays. The energy storage device can then be discharged during peak periods of household electricity consumption, such as evenings and weekends, to maintain a high charging power.

[0054] Furthermore, it also includes a photovoltaic power generation module, which is connected to the control module and the power distribution module. Currently, rooftops, green areas, and public shade areas in each residential area are planned to be unused. By installing photovoltaic power generation systems in these areas and connecting them to the power distribution module, it can help maintain high charging power during peak daytime electricity consumption, while also saving households from purchasing more electricity.

[0055] Furthermore, it also includes a diesel-gasoline power generation device; the diesel-gasoline power generation device is connected to the power distribution module through a power supply circuit; the diesel-gasoline power generation device is connected to the control module.

[0056] Furthermore, the charging pile includes a second power regulation module and a charging gun; the input end of the second power regulation module is connected to the output end of the distribution unit; and the output end of the second power regulation module is connected to the charging gun. The second power module can achieve more flexible adjustment of the charging power.

[0057] Furthermore, the charging pile is provided with a second detection module for detecting the charging power and charging amount output by the charging pile, so as to detect and measure the charging amount of each charging pile.

[0058] Example 2

[0059] A control method for an automatic networked fast charging system based on household electricity is applied to the automatic networked fast charging system based on household electricity described above, and specifically comprises the following steps:

[0060] The control module detects the total power consumption of the household circuit through the first detection module, and calculates whether the household circuit is connected to the system and the power output after connection to the system. If it is calculated that the household circuit currently has no available charging power, the access switch is controlled to be disconnected; if it is calculated that charging power is available, the access switch is controlled to be closed, and the first power regulation module is controlled to output the available charging power.

[0061] The control module calculates the average current shared charging power and compares it with the available charging power of the charging pile. If the available charging power of the charging pile is greater, the power distribution unit is controlled to use the charging line of the charging pile alone. If the available charging power of the charging pile is less, the power distribution unit is controlled to connect the charging line of the charging pile to the shared circuit and connect the charging pile to the shared circuit to enjoy the higher charging power.

[0062] The control module calculates the current real-time total electricity cost of the system based on the real-time charging power shared by each company. At the same time, it calculates the sharing ratio of each charging pile based on the real-time power of the charging piles currently using the shared circuit, and calculates the real-time charging cost of each charging pile based on the sharing ratio. Through real-time pricing, the cost that each charging pile should bear under various power changes of the charging circuit can be accurately measured.

[0063] It also includes the following steps: if the control module detects that the current total power of the shared circuit is greater than the total power required for charging, the energy storage device is charged; if it is detected that the current total power of the shared circuit is less than the total power required for charging, the energy storage device is turned on to discharge the shared circuit.

[0064] The charging scenarios in this application are diverse. The number and power of connected household circuits may change at any time. The number and power of charging piles required for charging may also change. Therefore, the charging power allocated to each charging pile may change at any time. Therefore, through real-time billing, it is possible to accurately measure the cost that each charging pile should share. At the same time, considering that there will be circuit losses, if the electricity bill is simply calculated based on the charging capacity of each charging pile, it is bound to be unable to share the electricity bill of the power supply household. Therefore, based on the power supply electricity fee, the electricity fee is shared according to the real-time power and electricity consumption ratio of each charging pile, which can achieve a more fair and just effect.

[0065] The present application provides an automatic networking fast charging system based on household electricity, comprising: a plurality of first detection modules, a plurality of power supply circuits, a power distribution module, a plurality of charging piles and a control module; each power supply circuit is connected to a household circuit; the power supply circuit comprises an access switch, a rectifier and filter module and a first power regulation module; the access switch is connected to the household circuit to access the charging power supply; the rectifier and filter module are respectively connected to the access switch and the first power regulation module to rectify and filter the charging power supply and then input it into the first power regulation module for charging power adjustment; the power distribution module is provided with a plurality of input terminals and output terminals, each input terminal is connected to a first power The first detection module is installed on the household circuit bus to detect the total household power consumption; the control module is respectively connected to the first detection module, the access switch, the first power regulation module, the power distribution module and the charging pile to control the operation of each module according to the control needs; the power of each household is aggregated and filtered into the power distribution module, and then the power distribution module is distributed to each required charging pile according to the needs, so as to achieve the effect of increasing the charging power and accelerating the charging speed without modifying the existing household circuit. This solution connects the power circuit with the household circuit of each household to obtain a large total charging power capacity, especially in some urban communities where the total number of households often reaches thousands and each household generally has a lot of surplus power. Therefore, not only can a huge amount of charging power be provided to automatically network and quickly charge new energy vehicles and electric vehicles, saving charging time, but also fully developing and utilizing the circuits used by residents, and reducing the need to lay additional dedicated charging lines and dedicated charging places, saving social resources and improving social and economic benefits.

[0066] Those skilled in the art will appreciate that the units of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition of each example has been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0067] In the embodiments provided by the present invention, it should be understood that the division of units is merely a logical function division, and there may be other division methods in actual implementation, for example, multiple units can be combined into one unit, one unit can be split into multiple units, or some features can be ignored, etc.

[0068] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0069] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-0nly Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc., various media that can store program code.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An automatic networking fast charging system based on household electricity, characterized in that: include: Several first detection modules, several power supply circuits, a power distribution module, several charging piles, and a control module; each power supply circuit is connected to a household circuit; the power supply circuit includes an access switch, a rectifier and filter module, and a first power regulation module; the access switch is connected to the household circuit to access the charging power supply; The rectifier and filter module is respectively connected to the access switch and the first power regulation module to rectify and filter the charging power supply and then input it into the first power regulation module for charging power adjustment; the power distribution module is provided with a plurality of input terminals and output terminals, each input terminal is connected to a first power regulation module, and each output terminal is connected to a charging pile to access various charging power supplies and distribute them to the charging piles that need charging as needed; The first detection module is installed on the household circuit bus to detect the total household power consumption; the control module is respectively connected to the first detection module, the access switch, the first power regulation module, the power distribution module and the charging pile to control the operation of each module according to control needs; by sorting and filtering the power of each household and aggregating it to the power distribution module, the power distribution module then distributes it to the required charging piles as needed, thereby achieving the effect of increasing charging power and accelerating charging speed without modifying the existing household circuit; The power distribution module includes at least two distribution units; each distribution unit is provided with an input end, an output end, a shared end, and a control end; the shared ends of the distribution units are connected to each other; the input end of the distribution unit is connected to the first power regulation module, and the output end is connected to the charging pile; the control module is connected to the control end of the distribution unit to control whether the input end is connected to the output end or the shared end, and whether the output end is connected to the input end or the shared end; The distribution unit includes a MOS transistor Q5, a MOS transistor Q6, a MOS transistor Q7, and a NOT gate D5; the output end of the MOS transistor Q6 is connected to the input end of the MOS transistor Q7 to serve as a shared end of the distribution unit; the input end of the MOS transistor Q5 is connected to the input end of the MOS transistor Q6 to serve as an input end A1 of the distribution unit; the output end of the MOS transistor Q5 is connected to the output end of the MOS transistor Q7 to serve as an output end A2 of the distribution unit; the output end of the NOT gate D5 is connected to the control end of the MOS transistor Q5, and the input end of the NOT gate D5 is connected to the control ends of the MOS transistors Q6 and Q7 to serve as the control end of the distribution unit.

2. The automatic networking fast charging system based on household electricity according to claim 1 is characterized in that: It also includes a cloud platform and a client; the cloud platform is connected to the control module and the client respectively.

3. The automatic networking fast charging system based on household electricity according to claim 1, characterized in that: It also includes an energy storage device; the energy storage device is connected to the power distribution module and the control module respectively.

4. The automatic networking fast charging system based on household electricity according to claim 1 is characterized in that: It also includes a photovoltaic power generation module; the photovoltaic power generation module is connected to the control module and the power distribution module respectively.

5. The automatic networking fast charging system based on household electricity according to claim 1 is characterized in that: It also includes a diesel-gasoline power generation device; the diesel-gasoline power generation device is connected to the power distribution module through a power supply circuit; the diesel-gasoline power generation device is connected to the control module.

6. The automatic networking fast charging system based on household electricity according to claim 1, characterized in that: The charging pile includes a second power regulating module and a charging gun; the input end of the second power regulating module is connected to the output end of the distribution unit; and the output end of the second power regulating module is connected to the charging gun.

7. The automatic networking fast charging system based on household electricity according to claim 1, characterized in that: The charging pile is provided with a second detection module for detecting the charging power and charging amount output by the charging pile.

8. A control method for an automatic networking fast charging system based on household electricity, characterized in that: The automatic networking fast charging system based on household electricity as claimed in any one of claims 1 to 7 specifically comprises the following steps: The control module detects the total power consumption of the household circuit through the first detection module, and calculates whether the household circuit is connected to the system and the power output after connection to the system. If it is calculated that the household circuit currently has no available charging power, the access switch is controlled to be disconnected; if it is calculated that charging power is available, the access switch is controlled to be closed, and the first power regulation module is controlled to output the available charging power. The control module calculates the average current shared charging power and compares it with the available charging power of the charging pile. If the available charging power of the charging pile is greater, the power distribution unit is controlled to use the charging line of the charging pile alone. If the available charging power of the charging pile is less, the power distribution unit is controlled to connect the charging line of the charging pile to the shared circuit and connect the charging pile to the shared circuit to enjoy the higher charging power. The control module calculates the current real-time total electricity cost of the system based on the real-time charging power shared by each company. At the same time, it calculates the sharing ratio of each charging pile based on the real-time power of the charging piles currently using the shared circuit, and calculates the real-time charging cost of each charging pile based on the sharing ratio. Through real-time pricing, the cost that each charging pile should bear under various power changes of the charging circuit can be accurately measured.

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