CN215180534U - Miniature intelligent storage and charging inspection cabinet - Google Patents
Miniature intelligent storage and charging inspection cabinet Download PDFInfo
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- CN215180534U CN215180534U CN202120097000.3U CN202120097000U CN215180534U CN 215180534 U CN215180534 U CN 215180534U CN 202120097000 U CN202120097000 U CN 202120097000U CN 215180534 U CN215180534 U CN 215180534U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
A miniature intelligent storage and charging inspection cabinet, comprising: the system comprises an energy storage cabinet and a charging detection cabinet; an alternating current power distribution unit, a battery energy storage unit and an energy storage converter are arranged in the energy storage cabinet; a bidirectional isolation direct current converter, a direct current intelligent charging unit and an energy management system EMS are arranged in the charging and detecting cabinet; the alternating current distribution unit, the battery energy storage unit and the energy storage converter are respectively in communication connection with an Energy Management System (EMS); the storage converter is connected with the battery energy storage unit; the bidirectional isolation direct current converter is connected with the direct current intelligent charging unit, and the direct current intelligent charging unit is connected with the energy management system EMS. The utility model provides an electric motor car battery charge-discharge efficiency height, the miniature intelligence storage that detects with low costs fill and examine the cabinet.
Description
Technical Field
The utility model belongs to the technical field of electric automobile charging station, concretely relates to cabinet is examined to miniature intelligent storage and charging.
Background
Currently, human society faces the problems of climate warming, non-renewable energy shortage and environmental deterioration, and for the current situation, countries around the world are dedicated to promoting the rapid development of the electric vehicle industry.
With the rapid development of electric vehicles, conventional charging stations are slowly popularized, and the charging requirements of general users are met. However, the conventional charging station cannot be constructed and applied in an electric vehicle 4S store, a vehicle maintenance store, a second-hand vehicle store, a residential area and the like due to the problems of large floor area, high power grid power distribution capacity demand and the like. And the traditional facility that charges is only single one-way charging, does not possess the detection function yet.
Therefore, how to provide a cabinet is examined in storage of miniature intelligence, realize that construction convenient and fast promotes charge-discharge efficiency, reduces electric automobile battery and detects the cost, becomes a problem that awaits a urgent need to solve.
Disclosure of Invention
The utility model aims to solve the technical problem that a cabinet is examined in the storage of miniature intelligence that electric motor car battery charge-discharge efficiency is high, the detection cost is low is filled to the detection.
The utility model discloses a realize like this:
a miniature intelligent storage and charging inspection cabinet, comprising: the system comprises an energy storage cabinet and a charging detection cabinet;
an alternating current power distribution unit, a battery energy storage unit and an energy storage converter are arranged in the energy storage cabinet;
a bidirectional isolation direct current converter, a direct current intelligent charging unit and an energy management system EMS are arranged in the charging detection cabinet;
the alternating current distribution unit, the battery energy storage unit and the energy storage converter are respectively in communication connection with the energy management system EMS; the storage converter is connected with the battery energy storage unit;
the bidirectional isolation direct current converter is connected with the direct current intelligent charging unit, and the direct current intelligent charging unit is connected with the energy management system EMS;
the alternating current power distribution unit includes: an isolation transformer, a UPS, and an AC electric energy meter;
the battery energy storage unit is formed by connecting lithium iron phosphate battery modules in series and parallel, each battery module is 12.5kWh, and the capacity is 200kWh after series and parallel connection;
the energy storage converter adopts a 30-60 kW energy storage converter, is in CAN communication with an electric automobile BMS battery management system, and responds to charging and discharging voltage limiting and current limiting and protection instructions; performing LAN communication with the EMS energy management system, and receiving an energy allocation and protection instruction;
the bidirectional isolation direct current converter comprises two bidirectional isolation direct current converter modules, wherein the outputs of the two bidirectional isolation direct current converter modules are connected in parallel;
the direct current intelligent charging unit: the device has the functions of electric energy metering and insulation detection; establishing communication with the BMS to complete message handshaking and data analysis and realize charging and discharging functions; the upper part is LAN communication, and data such as charging and discharging voltage and current and related alarm information are transmitted;
the energy management system EMS realizes data acquisition and monitoring of each device through the EMS, controls and distributes energy to each device according to data analysis results, enables the system to operate in an optimal state, and simultaneously converts the detection data of the electric automobile into a report for output after analysis and processing.
The utility model has the advantages that:
1. the product has compact structure, high system energy density and small occupied and installed area, and can be conveniently installed in an electric vehicle 4S shop, an automobile maintenance shop, a second-hand vehicle shop and a residential area.
2. The capacity increasing and expanding purposes can be achieved, the rated capacity of the PCS is 30-60 kW, only 30-60 kW is needed for inputting alternating current power distribution capacity, and the capacity is flexibly selected according to the actual power distribution allowance; the maximum input/output power of the energy storage battery is 200kW, the maximum power of the charging pile can be supported to 240kW, and the double-gun full power output is met. The capacity of a power distribution grid is reduced, and the capacity increasing and expanding cost of the grid is reduced.
3. The double charging guns are configured, so that electric energy can be rapidly supplemented for 2 electric automobiles, the maximum power can reach 120kW, and the maximum current can reach 250A.
4. The vehicle power battery pack of the electric vehicle can be subjected to health detection, evaluation and analysis, and a report is formed for a vehicle owner to know the health condition of the vehicle battery pack.
5. Compared with the traditional one-way direct current converter, the bidirectional direct current converter can realize one-gun charging and one-gun discharging, and can finish two-vehicle detection, thereby saving detection time and improving charging and discharging conversion efficiency.
6. Intelligent monitoring and man-machine interaction are carried out, and energy distribution of an energy distribution management system and an intelligent regulation system are matched; and a large-size touch liquid crystal display screen is adopted, so that the running state and the alarm information of the equipment are displayed, and a battery detection report of the electric automobile can be displayed.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the appearance of the present invention.
Fig. 2 is a schematic block diagram of the system circuit of the present invention.
Fig. 3 is a schematic block diagram of the system communication of the present invention.
Detailed Description
As shown in fig. 1 to 3, a micro intelligent storage and charging detection cabinet comprises an energy storage cabinet and a charging detection cabinet, wherein an alternating current power distribution unit, a battery energy storage unit and an energy storage converter (PCS) are arranged in the energy storage cabinet; and a bidirectional isolation direct current converter (DC/DC), a direct current intelligent charging unit and an Energy Management System (EMS) are arranged in the charging detection cabinet.
The alternating current distribution unit, the battery energy storage unit and the energy storage converter are respectively in communication connection with the energy management system EMS; the storage converter is connected with the battery energy storage unit; the bidirectional isolation direct current converter is connected with the direct current intelligent charging unit, and the direct current intelligent charging unit is connected with the energy management system EMS.
An alternating current power distribution unit: the power of the isolation transformer containing 30-60 kVA is matched with that of the energy storage converter, so that the safety, reliability and stability of system power distribution are improved; the UPS is configured to ensure that important equipment runs uninterruptedly; and adding an alternating current energy meter and recording power consumption data at any time.
Energy storage converter (PCS): a 30-60 kW energy storage converter (PCS) is adopted to carry out CAN communication with a BMS battery management system, and the charge and discharge voltage limiting and current limiting and protection instructions are responded; and carrying out LAN communication with the EMS energy management system, and receiving an energy allocation and protection instruction.
A battery energy storage unit: the system is formed by connecting safe and reliable lithium iron phosphate batteries in series and in parallel, the sampling modular design is adopted, each module is about 12.5kWh, an energy storage system is formed after the modules are connected in series and in parallel, the capacity is 200kWh, and a matched battery management system is used for carrying out data acquisition and control protection on the batteries.
Bidirectional isolated direct current converter (DC/DC): 2 modules output in parallel connection can charge the electric automobile with high power up to 250A/120kW, so that the aim of quick charging is fulfilled; the bidirectional isolation direct current converter has high-precision current and voltage data acquisition, and the accuracy of data detection of the battery of the electric automobile is ensured; the bidirectional performance is satisfied, the charging and discharging are realized, and the energy conversion efficiency is improved; isolation performance, interference or influence of charging and discharging simultaneously of the double guns is avoided.
Direct current intelligent charging unit: the device has the functions of electric energy metering and insulation detection; establishing communication with the BMS to complete message handshaking and data analysis and realize charging and discharging functions; and the upper part is LAN communication, and transmits data such as charging and discharging voltage and current and related alarm information.
Energy Management System (EMS): data acquisition and monitoring of each device are realized through an EMS (energy management system), and each device is controlled and energy is distributed according to a data analysis result, so that the system operates in an optimal state; meanwhile, the detection data of the electric automobile is converted into a report to be output after being analyzed and processed.
The utility model discloses have following function:
1. electric vehicle detection
The detection function is divided into two types, namely rapid detection and system detection, the system detection comprises two processes of charging/discharging, and the detection accuracy is higher. The whole connection process that detects is unanimous with the general electric pile charging connection that fills, when confirming the vehicle complete connection, fill electric pile's controller through carrying out the communication with the BMS of vehicle, obtain electric automobile's battery system's voltage, electric current, information such as SOC, combine high accuracy voltage and current value that two-way isolation direct current converter gathered, through energy management system EMS software algorithm (energy accumulation, data screening and contrast etc.) at whole in-process, the health status to the vehicle evaluates, and show through liquid crystal display or APP output and supply the customer to look over.
The detection contents comprise insulation performance, capacity retention rate, internal resistance, SOC precision, BMS current precision and BMS voltage precision.
2. On-grid and off-grid operation
When an external power grid is abnormal, the UPS is configured in the system, so that an important auxiliary power supply and a control unit in the system can be ensured to run uninterruptedly, and the electric automobile which is being charged or discharged or detected can not be influenced; the EMS energy management system detects the abnormality of an external power grid, disconnects the AC main switch, controls the energy storage converter to convert into off-grid operation output and provides a stable voltage source for the internal load of the system. The intelligent grid-connected and off-grid switching is realized, the continuity of the charging and discharging process of the electric automobile is ensured, and the damage to the battery of the electric automobile caused by sudden power failure is reduced.
When the EMS energy management system detects that the external power grid is recovered to the normal range, the energy storage converter is closed to operate in an off-grid output mode, the AC main switch is closed, the energy storage converter is started to operate in a grid-connected mode, and the charging power of the energy storage converter is controlled according to an energy management strategy.
3. Battery energy storage
Energy regulation function: the two electric vehicles are simultaneously detected, wherein one electric vehicle is set with a discharge mode, the other electric vehicle is set with a charge mode, the electric vehicle in the discharge mode transmits electric quantity to the electric vehicle in the charge mode through the bidirectional isolation direct current converter, redundant parts charge the battery energy storage system, and insufficient parts are discharged and supplemented by the battery energy storage system, so that an energy regulation effect is achieved, and the charge-discharge conversion efficiency is improved; energy storage function: and in the valley period of the external power grid, the energy storage converter is started to supplement power for the battery energy storage system, and in the peak period, the energy storage battery system is mainly used for charging the electric automobile, so that an intermediate electricity price difference is earned.
4. EMS energy management system
EMS establishes communication connection with each device in the system as the core brain of the product, collects the operating parameters and alarm information of all devices, displays the data on a liquid crystal display and an APP, and the vehicle owner knows the charging progress, the electric quantity, the residual charging time, the cost and the like of the electric vehicle by checking the corresponding interface information and detects the progress condition and the health detection report of the battery. And through big data analysis, an electric vehicle maintenance suggestion is provided for a vehicle owner.
Intelligent energy distribution: when the total charging required power of the electric automobile is greater than the sum of the maximum output powers provided by the battery energy storage system and the energy storage converter, the EMS identifies the charging request powers of the charging gun 1 and the charging gun 2, converts the charging request powers into proportions, and distributes the maximum output powers provided by the battery energy storage system and the energy storage converter to the charging gun 1 and the charging gun 2 in proportion; along with the electric quantity of the battery of the electric automobile is slowly increased, the EMS continuously acquires data and adjusts energy proportion distribution until the battery of the electric automobile is charged. The system is evenly distributed according to the needs, and the intelligence of the system is embodied.
Intelligent power regulation: a temperature sensor is arranged in the cabinet, and signals are uploaded to the EMS through a temperature collector; when the temperature value in the cabinet reaches a set value, the EMS controls the operation of the heat dissipation fan, and the temperature value in the cabinet is reduced to be lower than the return difference value, so that the heat dissipation fan stops working; meanwhile, by combining the internal temperature value of the bidirectional isolation direct current converter and adopting a derating output control strategy in a high-temperature environment, the continuity and the safety of the charging and discharging process of the electric automobile are improved, the condition of direct gun jump protection due to over-temperature is avoided, and the battery of the electric automobile is effectively protected.
The utility model discloses product compact structure, system energy density are high, and it is little to occupy the installation area of taking one' S place, can convenient installation in electric automobile 4S shop, auto repair shop, second-hand car shop, residential area. The capacity increasing and expanding purposes can be achieved, the rated capacity of the PCS is 30-60 kW, only 30-60 kW is needed for inputting alternating current power distribution capacity, and the capacity is flexibly selected according to the actual power distribution allowance; the maximum input/output power of the energy storage battery is 200kW, the maximum power of the charging pile can be supported to 240kW, and the double-gun full power output is met. The capacity of a power distribution grid is reduced, and the capacity increasing and expanding cost of the grid is reduced. The double charging guns are configured, so that electric energy can be rapidly supplemented for 2 electric automobiles, the maximum power can reach 120kW, and the maximum current can reach 250A. The vehicle power battery pack of the electric vehicle can be subjected to health detection, evaluation and analysis, and a report is formed for a vehicle owner to know the health condition of the vehicle battery pack. Compared with the traditional one-way direct current converter, the bidirectional direct current converter can realize one-gun charging and one-gun discharging, and can finish two-vehicle detection, thereby saving detection time and improving charging and discharging conversion efficiency. Intelligent monitoring and man-machine interaction are carried out, and energy distribution of an energy distribution management system and an intelligent regulation system are matched; and a large-size touch liquid crystal display screen is adopted, so that the running state and the alarm information of the equipment are displayed, and a battery detection report of the electric automobile can be displayed.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (1)
1. The utility model provides a cabinet is examined to miniature intelligence storage, its characterized in that: the method comprises the following steps: the system comprises an energy storage cabinet and a charging detection cabinet;
an alternating current power distribution unit, a battery energy storage unit and an energy storage converter are arranged in the energy storage cabinet;
a bidirectional isolation direct current converter, a direct current intelligent charging unit and an energy management system EMS are arranged in the charging detection cabinet;
the alternating current distribution unit, the battery energy storage unit and the energy storage converter are respectively in communication connection with the energy management system EMS; the energy storage converter is connected with the battery energy storage unit;
the bidirectional isolation direct current converter is connected with the direct current intelligent charging unit, and the direct current intelligent charging unit is connected with the energy management system EMS;
the alternating current power distribution unit includes: an isolation transformer, a UPS, and an AC electric energy meter;
the battery energy storage unit is formed by connecting lithium iron phosphate battery modules in series and parallel, each battery module is 12.5kWh, and the capacity is 200kWh after series and parallel connection;
the energy storage converter adopts a 30-60 kW energy storage converter, is in CAN communication with an electric automobile BMS battery management system, and responds to charging and discharging voltage limiting and current limiting and protection instructions; performing LAN communication with the energy management system EMS, and receiving an energy allocation and protection instruction;
the bidirectional isolation direct current converter comprises two bidirectional isolation direct current converter modules, wherein the outputs of the two bidirectional isolation direct current converter modules are connected in parallel;
the direct current intelligent charging unit: the device has the functions of electric energy metering and insulation detection; establishing communication with the BMS to complete message handshaking and data analysis and realize charging and discharging functions; the upper part is LAN communication, and charge-discharge voltage and current data and related alarm information are transmitted;
the energy management system EMS realizes data acquisition and monitoring of each device, controls each device according to a data analysis result and distributes energy, so that the system operates in an optimal state, and simultaneously converts the detection data of the electric automobile into a report for output after analysis and processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120097000.3U CN215180534U (en) | 2021-01-14 | 2021-01-14 | Miniature intelligent storage and charging inspection cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120097000.3U CN215180534U (en) | 2021-01-14 | 2021-01-14 | Miniature intelligent storage and charging inspection cabinet |
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| Publication Number | Publication Date |
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| CN215180534U true CN215180534U (en) | 2021-12-14 |
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| CN202120097000.3U Active CN215180534U (en) | 2021-01-14 | 2021-01-14 | Miniature intelligent storage and charging inspection cabinet |
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| CN (1) | CN215180534U (en) |
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2021
- 2021-01-14 CN CN202120097000.3U patent/CN215180534U/en active Active
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