CN114400765A - Multi-power-supply intelligent switching system of electric vehicle charging shed based on solar energy - Google Patents

Multi-power-supply intelligent switching system of electric vehicle charging shed based on solar energy Download PDF

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Publication number
CN114400765A
CN114400765A CN202210107140.3A CN202210107140A CN114400765A CN 114400765 A CN114400765 A CN 114400765A CN 202210107140 A CN202210107140 A CN 202210107140A CN 114400765 A CN114400765 A CN 114400765A
Authority
CN
China
Prior art keywords
supply system
contactor
power supply
solar
electric vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210107140.3A
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Chinese (zh)
Inventor
张辉
梁熹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICHUAN HUATI LIGHTING TECHNOLOGY CO LTD
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SICHUAN HUATI LIGHTING TECHNOLOGY CO LTD
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by SICHUAN HUATI LIGHTING TECHNOLOGY CO LTD filed Critical SICHUAN HUATI LIGHTING TECHNOLOGY CO LTD
Priority to CN202210107140.3A priority Critical patent/CN114400765A/en
Publication of CN114400765A publication Critical patent/CN114400765A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/51—Photovoltaic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/53—Batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

Abstract

The invention discloses a solar-based multi-power-supply intelligent switching system for an electric vehicle charging shed, which comprises a solar power supply system, a diesel power generation power supply system and a mains supply system, wherein the solar power supply system, the diesel power generation power supply system and the mains supply system are all connected with a load through a contactor, namely a contactor K1, a contactor K2 and a contactor K3, and each contactor is connected with a controller; the controller is connected with a first sensor for detecting the stored electric quantity information of the solar power supply system and a second sensor for detecting the power supply information of the commercial power supply system; the switching method comprises the following steps: the first sensor detects the information of the stored electric quantity in the storage battery in the solar power supply system in real time, and when the detected information of the stored electric quantity is larger than a preset threshold value, the controller controls the contactor K2 and the contactor K3 to be disconnected. The intelligent switching system mainly realizes intelligent switching of multiple power supplies and can ensure normal operation of the charging station after power failure.

Description

Multi-power-supply intelligent switching system of electric vehicle charging shed based on solar energy
Technical Field
The invention relates to the technical field of electric vehicle charging, in particular to an electric vehicle charging shed multi-power intelligent switching system based on solar energy.
Background
Electric vehicle charging stations are similar to vehicle gasoline stations and are a "power-on" device. Is a high-efficiency charger. Can be used for charging electric bicycles, electric automobiles, old people mobility scooter and the like. The charging device can be divided into a fast charging station and a slow charging station according to the charging speed.
Most of charging stations in the prior art adopt commercial power for charging, and if some remote places have power failure, outdoor charging stations can be arranged; therefore, in actual use, a solar power generation device is additionally arranged at the top of the charging station, and light energy is converted into electric energy to be stored, so that the light energy is utilized; however, since the speed of converting light energy into electric energy is slow, the outdoor charging station is almost in a breakdown state at the time of power failure.
Disclosure of Invention
The invention aims to provide a solar-based intelligent switching system for multiple power supplies of an electric vehicle charging shed, which mainly realizes intelligent switching of multiple power supplies and can ensure normal operation of a charging station after power failure.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a multi-power intelligent switching system of an electric vehicle charging shed based on solar energy comprises a solar power supply system, a diesel power generation power supply system and a mains supply system, wherein the solar power supply system, the diesel power generation power supply system and the mains supply system are all connected with a load through contactors, namely a contactor K1, a contactor K2 and a contactor K3, and are all connected with a controller;
the controller is connected with a first sensor for detecting the stored electric quantity information of the solar power supply system and a second sensor for detecting the power supply information of the commercial power supply system;
the switching method comprises the following steps:
the method comprises the steps that a first sensor detects the information of the stored electric quantity in a storage battery in the solar power supply system in real time, when the detected information of the stored electric quantity is larger than a preset threshold value, a controller controls a contactor K2 and a contactor K3 to be disconnected, a contactor K1 is closed, power is supplied through the solar power supply system, otherwise, the contactor K1 and the contactor K2 are controlled to be disconnected, and a contactor K3 is closed, and power is supplied through a mains power supply system;
when the detected stored electric quantity information is smaller than a preset threshold value and the second sensor detects that the power supply information of the mains supply system is 0, the controller controls the contactors K1 and K3 to be disconnected, meanwhile, the contactor K2 is closed, and meanwhile, the diesel power generation and supply system is started.
The contactor K1, the contactor K2 and the contactor K3 are normally open relays.
Further optimizing, when the contactors K1 and K3 are in an open state and the detected information of the stored electric quantity is larger than a preset threshold value, the controller controls K2 to be opened and simultaneously closes the diesel power generation and supply system, and closes the contactor K1;
further preferably, when the contactors K2 and K3 are in an open state, and the second sensor detects that the power supply information of the utility power supply system is "1", the contactors K1 and K2 are open, and the contactor K3 is closed.
The solar power supply system comprises a plurality of solar photovoltaic panels arranged at the top of the electric vehicle charging shed and a storage battery connected with the solar photovoltaic panels, wherein the bottom of each solar photovoltaic panel is connected with an adjusting assembly, and the adjusting assemblies are used for adjusting the inclination angles of the solar photovoltaic panels.
Further inject, adjusting part includes mounting panel, pivot and telescopic link, solar photovoltaic board fixed mounting is on the mounting panel, the pivot is passed through the supporting seat and is rotated and install at the electric motor car canopy top that charges, the mounting panel rotates and installs in the pivot, telescopic link one end is articulated with the mounting panel, and the other end is articulated with electric motor car canopy top that charges.
Wherein, the telescopic link is electronic, pneumatic or hydraulic telescopic link.
Wherein, the telescopic link is connected with the top of the electric vehicle charging shed and the mounting plate through a pin shaft.
Further optimize, be provided with balanced subassembly between mounting panel and the electric motor car canopy top of charging, balanced subassembly includes support, guide cylinder and guide arm, support fixed mounting is provided with the mounting hole on the electric motor car canopy top of charging on the support, the guide cylinder both sides are provided with first pivot, and the guide cylinder rotates through first pivot to be installed in the mounting hole, the guide arm slides and sets up in the guide cylinder, and the guide arm upper end is articulated with the mounting panel.
Compared with the prior art, the invention has the following beneficial effects:
the system mainly comprises a solar power supply system, a diesel power generation power supply system, a mains supply system, a contactor K1, a contactor K2, a contactor K3, a first sensor, a second sensor and a controller, wherein the first sensor is arranged in the system to detect the information of the stored electric quantity in a storage battery of the solar power supply system in real time in actual use, when the detected information of the stored electric quantity is greater than a preset threshold value, the controller controls the contactor K2 and the contactor K3 to be disconnected, the contactor K1 is closed, the solar power supply system supplies power, otherwise, the contactors K1 and K2 are controlled to be disconnected, and the contactor K3 is closed and supplies power through the mains supply system; when the detected stored electric quantity information is smaller than a preset threshold value and the second sensor detects that the power supply information of the mains supply system is '0', the controller controls the contactors K1 and K3 to be disconnected, closes the contactor K2 and starts the diesel power generation and supply system; therefore, the purpose of multi-power supply is achieved through the solar power supply system, the diesel power generation power supply system and the commercial power supply system, the intelligent switching of multiple power supplies is achieved, and normal operation of the charging station can be guaranteed after power failure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is an overall schematic block diagram of the present invention.
Fig. 2 is a control schematic diagram of the present invention.
FIG. 3 is a schematic view of the connection relationship between the adjusting assembly and the solar photovoltaic panel of the present invention.
FIG. 4 is an enlarged view of a portion of FIG. 3 according to the present invention.
Reference numerals:
1-a solar power supply system, 2-a diesel power generation power supply system, 3-a mains supply system, 4-a load, 5-a guide rod, 6-a first rotating shaft, 7-a mounting hole, 8-a controller, 9-a first sensor, 10-a second sensor, 11-an electric vehicle charging shed, 12-a solar photovoltaic panel, 13-an adjusting component, 14-a mounting plate, 15-a rotating shaft, 16-a telescopic rod, 17-a supporting seat, 18-a balancing component, 19-a bracket and 20-a guide cylinder.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. To simplify the disclosure of embodiments of the invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the invention. Furthermore, embodiments of the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
Referring to fig. 1-4, the embodiment discloses a solar-based intelligent switching system for multiple power supplies of an electric vehicle charging shed, which includes a solar power supply system 1, a diesel power generation power supply system 2 and a utility power supply system 3, wherein the solar power supply system 1, the diesel power generation power supply system 2 and the utility power supply system 3 are all connected with a load 4 through a contactor, the contactors are a contactor K1, a contactor K2 and a contactor K3, and each contactor is connected with a controller 8;
the controller 8 is connected with a first sensor 9 for detecting the electric quantity information stored in the solar power supply system 1 and a second sensor 10 for detecting the power supply information of the commercial power supply system 3;
the switching method comprises the following steps:
the first sensor 9 detects the information of the stored electric quantity in the storage battery in the solar power supply system 1 in real time, when the detected information of the stored electric quantity is larger than a preset threshold value, at the moment, the controller 8 controls the contactor K2 and the contactor K3 to be disconnected, the contactor K1 to be closed, power is supplied through the solar power supply system 1, otherwise, the contactor K1 and the contactor K2 are controlled to be disconnected, and the contactor K3 is closed to supply power through the commercial power supply system 3;
when the detected stored electric quantity information is smaller than the preset threshold value and the second sensor 10 detects that the power supply information of the commercial power supply system 3 is '0', the controller 8 controls the contactors K1 and K3 to be opened, and simultaneously closes the contactor K2 and starts the diesel power generation and supply system 2.
The invention mainly comprises a solar power supply system 1, a diesel power generation power supply system 2, a commercial power supply system 3, a contactor K1, a contactor K2, a contactor K3, a first sensor 9, a second sensor 10 and a controller 8, wherein the first sensor 9 is arranged to detect the information of the stored electric quantity in a storage battery in the solar power supply system 1 in real time in actual use, when the detected information of the stored electric quantity is greater than a preset threshold value, the controller 8 controls the contactor K2 and the contactor K3 to be disconnected at the moment, the contactor K1 is closed, the solar power supply system 1 is used for supplying power, otherwise, the contactors K1 and K2 are controlled to be disconnected, and the contactor K3 is closed and is used for supplying power through the commercial power supply system 3; when the detected stored electric quantity information is smaller than a preset threshold value and the second sensor 10 detects that the power supply information of the commercial power supply system 3 is '0', the controller 8 controls the contactors K1 and K3 to be disconnected, closes the contactor K2 and starts the diesel power generation and supply system 2; therefore, the purpose of multi-power supply is achieved through the solar power supply system 1, the diesel power generation power supply system 2 and the commercial power supply system 3, intelligent switching of multiple power supplies is achieved, and normal operation of the charging station can be guaranteed after power failure.
The contactor K1, the contactor K2 and the contactor K3 are normally open relays.
Further optimization, when the contactors K1 and K3 are in an open state and the detected stored electric quantity information is greater than a preset threshold value, the controller 8 controls the switch-off of the contactor K2 and simultaneously switches off the diesel power generation and supply system 2, and switches on the contactor K1; therefore, after actual use, the temporary power supply of the commercial power supply system 3 is realized, and when the diesel power generation power supply system 2 supplies power, the power supply of the solar power supply system 1 is automatically switched to the power supply of the solar power supply system 1 when the electric quantity of the storage battery in the solar power supply system 1 is sufficient, so that the time of the diesel power generation power supply system 2 is shortened; therefore, mutual alternate power supply of the solar power supply system 1 and the diesel power generation power supply system 2 can be realized.
Further, in practical use, when the contactors K2 and K3 are in an open state, and the second sensor 10 detects that the power supply information of the utility power supply system 3 is "1", the contactors K1 and K2 are open, and the contactor K3 is closed; thus, the system is automatically switched after the mains supply system 3 recovers power supply.
Example two
The embodiment is further optimized on the basis of the first embodiment, in the embodiment, the solar power supply system 1 comprises a plurality of solar photovoltaic panels 12 arranged at the top of the electric vehicle charging shed 11 and a storage battery connected with the solar photovoltaic panels 12, the bottom of each solar photovoltaic panel 12 is connected with an adjusting assembly 13, and the adjusting assemblies 13 are used for adjusting the inclination angles of the solar photovoltaic panels 12.
Wherein, adjusting part 13 includes mounting panel 14, pivot 15 and telescopic link 16, 12 fixed mounting of solar photovoltaic board are on mounting panel 14, pivot 15 rotates through supporting seat 17 and installs 11 tops at electric vehicle charging shed, mounting panel 14 rotates and installs in pivot 15, 16 one end of telescopic link are articulated with mounting panel 14, and the other end is articulated with 11 tops of electric vehicle charging shed.
Further, the telescopic rod 16 is an electric, pneumatic or hydraulic telescopic rod.
The telescopic rod 16 is connected with the top of the electric vehicle charging shed 11 and the mounting plate 14 through a pin shaft.
Like this, in the in-service use, realize the regulation to mounting panel 14 inclination through the adjusting part 13 that sets up, can make the better sunshine that receives of solar photovoltaic board 12, improve the light conversion efficiency for solar energy power supply system 1 can keep the best power generation state always.
EXAMPLE III
The embodiment is further optimized on the basis of the first embodiment, in the embodiment, a balance assembly 18 is arranged between the mounting plate 14 and the top of the electric vehicle charging shed 11, the balance assembly 18 comprises a support 19, a guide cylinder 20 and a guide rod 5, the support 19 is fixedly mounted on the top of the electric vehicle charging shed 11, a mounting hole 7 is formed in the support 19, first rotating shafts 6 are arranged on two sides of the guide cylinder 20, the guide cylinder 20 is rotatably mounted in the mounting hole 7 through the first rotating shafts 6, the guide rod 5 is slidably arranged in the guide cylinder 20, and the upper end of the guide rod 5 is hinged to the mounting plate 14.
Like this, can make mounting panel 14 more stable when the pivoted through the balanced subassembly 18 that sets up, mounting panel 14 is in the pivoted time, because guide cylinder 20 rotates and sets up in mounting hole 7 when round pivot 15 is pivoted, when this moment guide arm 5 will drive guide cylinder 20 pivoted, guide arm 5 removes in guide cylinder 20, and then makes mounting panel 14 more stable at the pivoted in-process, improves the security when rotating.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, it should be noted that any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. The utility model provides an electric motor car charging shed many power intelligence switched systems based on solar energy which characterized in that: the system comprises a solar power supply system, a diesel power generation power supply system and a mains supply system, wherein the solar power supply system, the diesel power generation power supply system and the mains supply system are all connected with a load through contactors, namely a contactor K1, a contactor K2 and a contactor K3, and are all connected with a controller;
the controller is connected with a first sensor for detecting the stored electric quantity information of the solar power supply system and a second sensor for detecting the power supply information of the commercial power supply system;
the switching method comprises the following steps:
the method comprises the steps that a first sensor detects the information of the stored electric quantity in a storage battery in the solar power supply system in real time, when the detected information of the stored electric quantity is larger than a preset threshold value, a controller controls a contactor K2 and a contactor K3 to be disconnected, a contactor K1 is closed, power is supplied through the solar power supply system, otherwise, the contactor K1 and the contactor K2 are controlled to be disconnected, and a contactor K3 is closed, and power is supplied through a mains power supply system;
when the detected stored electric quantity information is smaller than a preset threshold value and the second sensor detects that the power supply information of the mains supply system is 0, the controller controls the contactors K1 and K3 to be disconnected, meanwhile, the contactor K2 is closed, and meanwhile, the diesel power generation and supply system is started.
2. The system of claim 1 for intelligently switching multiple power supplies of the charging shed of the electric vehicle based on the solar energy is characterized in that: the contactor K1, the contactor K2, and the contactor K3 are normally open relays.
3. The system of claim 1 for intelligently switching multiple power supplies of the charging shed of the electric vehicle based on the solar energy is characterized in that: when the contactors K1 and K3 are in an open state and the detected information of the stored electric quantity is larger than a preset threshold value, the controller controls K2 to be opened, the diesel power generation and supply system to be closed, and the contactor K1 is closed.
4. The system of claim 3 for intelligently switching multiple power supplies of the charging shed of the electric vehicle based on the solar energy is characterized in that: when the contactors K2 and K3 are in an open state, and the second sensor detects that the power supply information of the mains supply system is "1", the contactors K1 and K2 are open, and the contactor K3 is closed.
5. The system for intelligently switching multiple power supplies of the charging shed of the electric vehicle based on the solar energy as claimed in any one of claims 1 to 4, is characterized in that: the solar power supply system comprises a plurality of solar photovoltaic panels arranged at the top of the electric vehicle charging shed and a storage battery connected with the solar photovoltaic panels, wherein the bottom of each solar photovoltaic panel is connected with an adjusting assembly, and the adjusting assembly is used for adjusting the inclination angle of each solar photovoltaic panel.
6. The system of claim 5 for intelligently switching multiple power supplies of the charging shed of the electric vehicle based on the solar energy is characterized in that: the adjusting part comprises an installation plate, a rotating shaft and a telescopic rod, the solar photovoltaic panel is fixedly installed on the installation plate, the rotating shaft is rotatably installed at the top of the electric vehicle charging shed through a supporting seat, the installation plate is rotatably installed on the rotating shaft, one end of the telescopic rod is hinged to the installation plate, and the other end of the telescopic rod is hinged to the top of the electric vehicle charging shed.
7. The system of claim 6 for intelligently switching multiple power supplies of the charging shed of the electric vehicle based on the solar energy is characterized in that: the telescopic link is electronic, pneumatic or hydraulic telescopic link.
8. The system of claim 6 for intelligently switching multiple power supplies of the charging shed of the electric vehicle based on the solar energy is characterized in that: the telescopic rod is connected with the top of the electric vehicle charging shed and the mounting plate through a pin shaft.
CN202210107140.3A 2022-01-28 2022-01-28 Multi-power-supply intelligent switching system of electric vehicle charging shed based on solar energy Pending CN114400765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210107140.3A CN114400765A (en) 2022-01-28 2022-01-28 Multi-power-supply intelligent switching system of electric vehicle charging shed based on solar energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210107140.3A CN114400765A (en) 2022-01-28 2022-01-28 Multi-power-supply intelligent switching system of electric vehicle charging shed based on solar energy

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CN114400765A true CN114400765A (en) 2022-04-26

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