CN214798892U - Light storage and charging micro-grid - Google Patents
Light storage and charging micro-grid Download PDFInfo
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- CN214798892U CN214798892U CN202121488108.1U CN202121488108U CN214798892U CN 214798892 U CN214798892 U CN 214798892U CN 202121488108 U CN202121488108 U CN 202121488108U CN 214798892 U CN214798892 U CN 214798892U
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Abstract
The utility model relates to a light stores up and fills microgrid, include: the system comprises an energy management system, a charging pile, a comprehensive energy station and an energy storage system; the comprehensive energy station is connected to a power grid; an alternating current contactor and a voltage sampling line are added between a power distribution cabinet and a box-type transformer in the comprehensive energy station, and a power grid voltage sampling point is arranged on the voltage sampling line; a light storage and charging system is arranged in the comprehensive energy station; the energy management system is electrically connected with the grid voltage sampling point and the light storage and charging system. The utility model has the advantages that: the utility model discloses utilize the energy storage battery that the light storage was filled in the system to replace high-power UPS, UPS only can play a role when having a power failure, and the energy storage battery that the light storage was filled in the system also can utilize peak valley electricity to carry out peak valley cover profit at ordinary times, new forms of energy consumption, energy saving and emission reduction, reduces the input of charges of electricity, and UPS can only drive the operation of partial low-power electrical apparatus, and the utility model discloses the light storage is filled system power great, can drive the operation of whole station room electrical apparatus.
Description
Technical Field
The utility model belongs to comprehensive energy station power supply field especially relates to a light stores up and fills microgrid.
Background
With the progress of the times, new energy automobiles develop rapidly, and the traditional gas station has difficulty in meeting the fuel supply under the existing vehicle structure. Therefore, the demand of a comprehensive energy station integrating the functions of gas filling, oil filling, charging, hydrogenation and the like is increasing day by day. As shown in fig. 1, a high-power UPS is provided in a common integrated energy station to serve as a backup power supply, so as to prevent the integrated energy station from being incapable of operating normally due to sudden power failure of a power grid. However, the high-power UPS has higher cost and low utilization rate. If the light storage and charging system is built in the comprehensive energy station, the roof distributed photovoltaic construction is developed, an economical and reasonable energy storage system is combined, the unified physical integration with the station-level charging pile is realized, and the integrated local and remote energy management system is developed. The peak-valley profit sharing and new energy consumption of the energy storage system are utilized at ordinary times, and the UPS function can be replaced when the power grid is powered off.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, provide a light storage fills microgrid.
This kind of light stores up fills microgrid, includes: the system comprises an energy management system, a charging pile, a comprehensive energy station and an energy storage system; the comprehensive energy station is connected to a power grid; an alternating current contactor and a voltage sampling line are added between a power distribution cabinet and a box-type transformer in the comprehensive energy station, and a power grid voltage sampling point is arranged on the voltage sampling line; a light storage and charging system is arranged in the comprehensive energy station; the energy management system is electrically connected with the grid voltage sampling point and the light storage and charging system; a DC/AC module is arranged in the charging pile, the comprehensive energy station is electrically connected with the DC/AC module, the energy management system is electrically connected with the DC/AC module, and the DC/AC module is electrically connected with the energy storage system; a direct current contactor, a fuse, a shunt, a direct current meter and an isolating switch are arranged on a connecting line between the DC/AC module and the energy storage system; an Uninterruptible Power Supply (UPS) is also arranged in the comprehensive energy station.
Preferably, the light storage and charging system in the comprehensive energy station comprises a photovoltaic panel, an energy storage battery and a direct current charging pile.
Preferably, the energy storage battery in the light storage and charging system can use a battery eliminated by an automobile, the energy storage system is convenient to expand, and the purpose of gradient utilization of the battery can be achieved.
Preferably, the grid is a three-phase power.
The utility model has the advantages that:
the utility model discloses utilize the energy storage battery in the light storage system of filling to replace high-power UPS, UPS can only play a role when having a power failure, and the energy storage battery in the light storage system of filling also can utilize peak valley electricity to carry out peak valley profit, new forms of energy are absorbed, energy saving and emission reduction at ordinary times, reduces the input of charges of electricity, and UPS can only drive partial low-power electrical apparatus operation, and the utility model discloses light storage system of filling power is great, can drive whole station room electrical apparatus operation; wherein the peak valley arbitrage means: charging the battery at night when the electricity price is low, and inverting the electricity in the battery to supply power to other equipment when the electricity price is high in the daytime; the problem that the UPS power is not enough to drive the station house power demand is solved;
the utility model uses the light storage and charging system to replace the high-power direct current pile, thus effectively solving the problem of power distribution capacity increase; UPS all is the product of doing with new battery, and the energy storage battery in the light storage charging system can use the battery that the car was eliminated, can play the battery echelon and utilize the purpose, plays environmental protection effect, and the convenient dilatation of energy storage system.
Drawings
FIG. 1 is a schematic diagram of a power outage scenario for a conventional integrated energy station;
fig. 2 is a schematic diagram of a power supply scheme of the comprehensive energy station of the present invention;
fig. 3 is a schematic diagram of the light storage and charging microgrid of the present invention;
fig. 4 is a flow chart of the dual power supply solution of the integrated energy station of the present invention.
Description of reference numerals: alternating current contactor 1, grid voltage sampling point 2, energy management system 3, DC/AC module 4, direct current contactor 5, fuse 6, shunt 7, direct current ammeter 8, isolator 9, energy storage system 10, electric wire netting 11, comprehensive energy station 12, uninterrupted power source 13, fill electric pile 14, light storage system 15.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, the present invention can be modified in several ways without departing from the principle of the present invention, and these modifications and modifications also fall into the protection scope of the claims of the present invention.
Example one
An embodiment of the present application provides an optical storage and charging microgrid as shown in fig. 3, including: the system comprises an energy management system 3, a charging pile 14, a comprehensive energy station 12 and an energy storage system 10; the comprehensive energy station 12 is connected to a power grid 11 (three-phase power); an alternating current contactor 1 and a voltage sampling line are added between a power distribution cabinet and a box-type transformer in the comprehensive energy station 12, and a power grid voltage sampling point 2 is arranged on the voltage sampling line; a light storage and charging system 15 (a photovoltaic panel, an energy storage battery and a direct current charging pile) is arranged in the comprehensive energy station 12; the energy management system 3 is electrically connected with the network voltage sampling point 2 and the light storage and charging system 15; the energy storage battery in the light storage and charging system 15 can use the battery eliminated by the automobile, the energy storage system is convenient to expand, and the purpose of utilizing the battery in a gradient manner can be achieved.
A DC/AC module 4 is arranged in the charging pile 14, the comprehensive energy station 12 is electrically connected with the DC/AC module 4, the energy management system 3 is electrically connected with the DC/AC module 4, and the DC/AC module 4 is electrically connected with the energy storage system 10; a direct current contactor 5, a fuse 6, a shunt 7, a direct current ammeter 8 and an isolating switch 9 are arranged on a connecting line between the DC/AC module 4 and the energy storage system 10;
an Uninterruptible Power Supply (UPS)13 is also provided in the integrated energy station 12.
Example two
On the basis of the first embodiment, the second embodiment of the present application provides a dual power supply solution for an integrated energy station based on the optical storage and charging microgrid technology as shown in fig. 2 and 4:
when the electricity price is low at night, the energy storage system 10 is charged through the commercial power, and when the electricity price is high at daytime, the electricity in the battery is inverted to supply power to other equipment, so that the electricity utilization cost is reduced;
when the power failure of the power grid 11 is detected, the energy management system 3(EMS) detects that no voltage exists in the power grid 11 through a voltage sampling line between a power distribution cabinet and a box type transformer in the comprehensive energy station 12, and the energy management system 3(EMS) sends an instruction to disconnect the alternating current contactor 1 between the power distribution cabinet and the box type transformer, so that the voltage of the power grid end cannot be detected when a call comes in; then, a 10V-13V low-voltage power supply is taken from the energy storage system 10 to supply power to the energy management system 3, the energy management system 3(EMS) sends an instruction to start the DC/AC module 4 in the charging pile 14, the energy storage system 10 is controlled to output corresponding voltage through the direct current contactor 5, and the output electric quantity of the energy storage system 10 is monitored through the shunt 7 and the direct current meter 8; the isolating switch 9 and the fuse 6 protect the circuit; the output voltage of the energy storage system 10 is inverted into AC 380V three-phase power through the DC/AC module 4 (448V-584V) to be supplied to the comprehensive energy station 12 for power supply, and the energy management system always detects the voltage state of the power grid 11;
when the power failure of the power grid 11 is detected and the power supply of the power grid 11 is recovered, once the energy management system 3(EMS) detects the power-on of the power grid 11 (380V alternating current voltage on the power grid 11 is detected), the energy storage system 10 stops voltage output, meanwhile, the energy management system 3(EMS) sends an instruction to attract an alternating current contactor 1 between a power distribution cabinet and a box-type transformer, the operation of a DC/AC module 4 in a charging pile 14 is stopped, and the commercial power is recovered to supply power to the charging pile 14 and the comprehensive energy station 12 through the power grid 11;
when detecting that the power grid 11 is not powered off, the energy management system 3(EMS) directly allocates the commercial power to the power grid 11 for the charging pile 14 and the comprehensive energy station 12.
Claims (4)
1. An optical storage and charging microgrid, comprising: the system comprises an energy management system (3), a charging pile (14), a comprehensive energy station (12) and an energy storage system (10);
the comprehensive energy station (12) is connected to a power grid (11); an alternating current contactor (1) and a voltage sampling line are added between a power distribution cabinet and a box-type transformer in the comprehensive energy station (12), and a power grid voltage sampling point (2) is arranged on the voltage sampling line; a light storage and charging system (15) is arranged in the comprehensive energy station (12); the energy management system (3) is electrically connected with the network voltage sampling point (2) and the light storage and charging system (15);
a DC/AC module (4) is arranged in the charging pile (14), the comprehensive energy station (12) is electrically connected with the DC/AC module (4), the energy management system (3) is electrically connected with the DC/AC module (4), and the DC/AC module (4) is electrically connected with the energy storage system (10); a direct current contactor (5), a fuse (6), a shunt (7), a direct current meter (8) and an isolating switch (9) are arranged on a connecting line between the DC/AC module (4) and the energy storage system (10);
an uninterrupted power supply (13) is also arranged in the comprehensive energy station (12).
2. The optical storage and charging microgrid of claim 1, wherein: the light storage and charging system (15) in the comprehensive energy station (12) comprises a photovoltaic panel, an energy storage battery and a direct current charging pile.
3. The optical storage and charging microgrid of claim 2, wherein: the energy storage battery in the light storage and charging system (15) uses a battery eliminated by an automobile.
4. The optical storage and charging microgrid of claim 1, wherein: the power grid (11) is three-phase power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121488108.1U CN214798892U (en) | 2021-07-01 | 2021-07-01 | Light storage and charging micro-grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121488108.1U CN214798892U (en) | 2021-07-01 | 2021-07-01 | Light storage and charging micro-grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214798892U true CN214798892U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121488108.1U Active CN214798892U (en) | 2021-07-01 | 2021-07-01 | Light storage and charging micro-grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214798892U (en) |
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2021
- 2021-07-01 CN CN202121488108.1U patent/CN214798892U/en active Active
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