CN210011628U - Improved distributed light storage charging system - Google Patents
Improved distributed light storage charging system Download PDFInfo
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- CN210011628U CN210011628U CN201920700247.2U CN201920700247U CN210011628U CN 210011628 U CN210011628 U CN 210011628U CN 201920700247 U CN201920700247 U CN 201920700247U CN 210011628 U CN210011628 U CN 210011628U
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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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Abstract
The application discloses modified distributing type light stores up charging system, photovoltaic module passes through one-way DC/DC converter and is connected with direct current bus, the group battery passes through two-way DC/DC converter and is connected with direct current bus, municipal administration electric wire netting passes through AC/DC converter and is connected with direct current bus, a plurality of groups fill electric pile and connect on direct current bus, through power distribution ware to municipal administration electric wire netting's voltage, electric current and one-way DC/DC converter, two-way DC/DC converter and fill electric pile control management, obtain the charge load state of group battery and fill electric pile charging current, voltage isoparametric in real time, carry out power coordination distribution to light stores up charging system, it is poor to have solved current light and store up charging system coordination management and energy comprehensive distribution ability, lead to economic benefits low technical problem.
Description
Technical Field
The application relates to a light stores up the technical field that charges, especially relates to a charging system is stored up to modified distributing type light.
Background
The photovoltaic, energy storage and charging facilities form a micro-grid, intelligently interact with a public power grid according to requirements, and two different operation modes of grid connection and grid disconnection can be realized.
New forms of energy electric automobile's the mode of charging has the multiple, and the mode of charging to each electric pile carries out coordinated control and can play the stabilization and move the peak to fill the millet effect to the electric wire netting, and how through the reasonable control to electric automobile charges, it is undulant to avoid the load that the modularization electric automobile charges and bring for the electric wire netting, effectively stabilizes the electric wire netting peak valley difference in order to improve the electric wire netting utilization ratio, becomes the important problem that awaits the solution urgently.
The patent application with the patent application number of 201511032185.5 discloses a distributed photovoltaic energy storage charging pile, which comprises a photovoltaic panel, a photovoltaic converter, an inverter, a battery module, a direct current bus and a detection module, wherein the photovoltaic converter, the inverter and the battery module are respectively connected with the direct current bus, the photovoltaic panel is connected with the photovoltaic converter, the photovoltaic converter is respectively connected with the battery module and the inverter, the inverter is provided with an inverter and a rectifier, the inverter is externally connected with a commercial power alternating current bypass and a charging gun, the inverter has the characteristic of bidirectional conversion, the battery module is provided with a battery and a battery detection device, the battery module is connected with the inverter, the detection module is connected with the battery module and the inverter, the battery can be charged by the photovoltaic converter or can be subjected to distillation charging by the inverter, when the battery needs to be discharged, the alternating current is converted by the inverter to be output to, alleviate the power consumption pressure that the peak period used a large amount of electric piles, save the cost. Although the light storage charging pile system can relieve the power utilization pressure of a large number of charging piles in the peak period to a certain extent, the light storage charging pile system is poor in management, energy distribution and economic benefit, and when a plurality of charging piles run together, the light storage charging system is low in efficiency due to disordered control, so that the technical problem to be solved urgently by technical personnel in the field is how to perform coordinated management and comprehensive energy distribution on the light storage charging system to achieve the optimal economic benefit.
SUMMERY OF THE UTILITY MODEL
The application provides an improved distributed light storage and charging system, which is used for solving the technical problem that the existing light storage and charging system is poor in coordination management and comprehensive energy distribution capacity and low in economic benefit.
In view of the above, the present application provides an improved distributed optical storage and charging system, including a photovoltaic module, a unidirectional DC/DC converter, a battery pack, a charging pile, a bidirectional DC/DC converter, an AC/DC converter, a DC bus, and a power distributor;
the photovoltaic assembly is connected with the direct current bus through the unidirectional DC/DC converter;
the battery pack is connected with the direct current bus through the bidirectional DC/DC converter;
the AC/DC converter is connected with a municipal power grid and the power divider;
the power divider is also connected with the unidirectional DC/DC converter and the bidirectional DC/DC converter;
the bidirectional DC/DC converter is connected with the AC/DC converter and the battery pack;
the direct current bus is connected with a plurality of groups of charging piles;
the charging piles of the plurality of groups are connected with the power distributor.
Preferably, the power divider includes: the system comprises a CAN bus controller, an RS485 controller, an Ethernet controller, a PT/CT converter, a photovoltaic inverter, an energy storage converter and a central processing unit;
the CAN bus controller, the RS485 controller, the PT/CT converter and the Ethernet controller are all electrically connected with the central processing unit;
the RS485 controller comprises a first RS485 controller and a second RS485 controller;
the central processor is connected with a plurality of groups of the photovoltaic inverters through the first RS485 controller, and is connected with a plurality of groups of the energy storage converters through the second RS485 controller;
the central processor is connected with a plurality of groups of charging piles through the CAN bus controller;
the central processing unit is in communication connection with a management background of the distributed optical storage charging system through the Ethernet controller;
and the PT/CT converter is used for collecting the grid voltage, the grid current and the load current of the distributed light storage charging system.
Preferably, the method further comprises the following steps: an I/O controller;
the central processing unit is connected with an alarm circuit through the I/O controller.
Preferably, the battery pack further comprises a battery detection device connected with the battery pack.
According to the technical scheme, the method has the following advantages:
an improved distributed optical storage charging system provided in the present application comprises: the system comprises a photovoltaic component, a unidirectional DC/DC converter, a battery pack, a charging pile, a bidirectional DC/DC converter, an AC/DC converter, a direct current bus and a power distributor; the photovoltaic module is connected with the direct current bus through the unidirectional DC/DC converter; the battery pack is connected with the direct current bus through the bidirectional DC/DC converter; the AC/DC converter is connected with the municipal power grid and the power distributor; the power divider is also connected with the unidirectional DC/DC converter and the bidirectional DC/DC converter; the bidirectional DC/DC converter is connected with the AC/DC converter and the battery pack; the direct current bus is connected with a plurality of groups of charging piles; a plurality of groups fill electric pile and are connected with power distribution unit. The utility model provides a distributed light stores up charging system, photovoltaic module passes through one-way DC/DC converter and is connected with direct current bus, the group battery passes through two-way DC/DC converter and is connected with direct current bus, municipal administration electric wire netting passes through AC/DC converter and is connected with direct current bus, a plurality of groups fill electric pile and connect on direct current bus, voltage, electric current and one-way DC/DC converter, two-way DC/DC converter and the management of filling electric pile control through power distribution ware to municipal administration electric wire netting, obtain the charge load state of group battery and fill electric pile charge current, voltage isoparametric in real time, to storing up charging system and carrying out power coordination distribution, the problem of current light is stored up charging system coordination management and energy comprehensive distribution ability is poor has been solved, lead to the technical problem of economic inefficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of an improved distributed optical storage and charging system provided in the present application;
fig. 2 is a schematic structural diagram of a power divider in an embodiment of an improved distributed optical storage and charging system provided in the present application;
fig. 3 is a schematic structural diagram of an embodiment of an improved distributed optical storage and charging system provided by the present application when applied to an ac microgrid.
Detailed Description
The embodiment of the application provides an improved distributed light storage charging system, which is used for solving the technical problem that the existing light storage charging system is poor in coordination management and comprehensive energy distribution capacity, so that the economic benefit is low.
Referring to fig. 1, the present application provides an embodiment of an improved distributed optical storage and charging system, and the improved distributed optical storage and charging system provided by the embodiment of the present application includes: the system comprises a photovoltaic component, a unidirectional DC/DC converter, a battery pack, a charging pile, a bidirectional DC/DC converter, an AC/DC converter, a direct current bus and a power distributor;
the photovoltaic module is connected with the direct current bus through the unidirectional DC/DC converter;
the battery pack is connected with the direct current bus through the bidirectional DC/DC converter;
the AC/DC converter is connected with the municipal power grid and the power distributor;
the power divider is also connected with the unidirectional DC/DC converter and the bidirectional DC/DC converter;
the bidirectional DC/DC converter is connected with the AC/DC converter and the battery pack;
the direct current bus is connected with a plurality of groups of charging piles;
a plurality of groups fill electric pile and are connected with power distribution unit.
It should be noted that, in the embodiment of the present application, the photovoltaic module is connected to the DC bus through the unidirectional DC/DC converter, the battery pack is connected to the DC bus through the bidirectional DC/DC converter, the municipal power grid is connected to the DC bus through the AC/DC converter, a plurality of groups of charging piles are connected to the DC bus, the voltage and current of the municipal power grid, the unidirectional DC/DC converter, the bidirectional DC/DC converter and the charging piles are monitored and managed through the power distributor, the charging load state of the battery pack and the charging current and voltage of the charging piles are obtained in real time, and the power coordination distribution is performed on the optical storage charging system according to the parameter analysis result, so that the technical problem that the existing optical storage charging system is poor in coordination management and energy comprehensive distribution capability, and economic benefits are low is solved. It should be noted that, performing algorithm analysis on the obtained parameters to obtain an analysis result in the embodiment of the present application is a conventional technical means in the art, and a person skilled in the art may set the analysis result according to practical applications, where the analysis part is not an improvement in terms of program instruction execution, and the improvement in the embodiment of the present application is an improvement in the overall structure of the optical storage and charging system and the connection relationship thereof.
As an improvement, referring to fig. 2, a power divider of a distributed optical storage charging system provided in an embodiment of the present application includes: the system comprises a CAN bus controller, an RS485 controller, an Ethernet controller, a PT/CT converter, a photovoltaic inverter, an energy storage converter and a central processing unit;
the CAN bus controller, the RS485 controller, the PT/CT converter and the Ethernet controller are all electrically connected with the central processing unit;
the RS485 controller comprises a first RS485 controller and a second RS485 controller;
the central processing unit is connected with a plurality of groups of photovoltaic inverters through a first RS485 controller, and is connected with a plurality of groups of energy storage converters through a second RS485 controller;
the central processing unit is connected with a plurality of groups of charging piles through the CAN bus controller;
the central processing unit is in communication connection with a management background of the distributed optical storage charging system through an Ethernet controller;
and the PT/CT converter is used for collecting the grid voltage, the grid current and the load current of the distributed light storage charging system.
It should be noted that the power distributor in this embodiment of the application may include a CAN bus controller, an RS485 controller, an ethernet controller, a PT/CT converter, a photovoltaic inverter, an energy storage converter, and a central processing unit, where the central processing unit is connected to a plurality of groups of photovoltaic inverters through a first RS485 controller, and is connected to a plurality of groups of energy storage converters through a second RS485 controller, and the PT/CT converter samples grid voltage, grid current, and load current in a grid, and after sending the sampled data to the central processing unit, the ethernet controller returns the sampled data to a management background for analysis processing. The central processing unit is in interactive communication with a management background of electric vehicle operation management, the management background is matched to obtain the maximum economic benefit or energy efficiency, energy distribution can be carried out on the multiple groups of charging piles and the multiple groups of energy storage devices, impact on a power grid is suppressed through reasonable energy distribution, energy optimized distribution of the maximum economic benefit is carried out, and energy distribution can be implemented in the process that the multiple groups of charging piles work simultaneously in consideration of the condition that a user uses the electric vehicle, so that the maximum economic benefit is achieved.
As an improvement, the method further comprises the following steps: an I/O controller;
the central processing unit is connected with the alarm circuit through the I/O controller.
It should be noted that, an I/O controller may also be provided in the embodiment of the present application, the connection between the central processing unit and the alarm circuit is realized through the I/O controller, the central processing unit outputs alarm information to the alarm circuit through the I/O controller, and the alarm circuit operates to display a corresponding alarm prompt.
As an improvement, in order to intelligently manage and maintain the battery pack, prevent the battery pack from being overcharged and overdischarged, and prolong the service life of the battery pack, the distributed optical storage charging system provided in the embodiment of the present application further includes a battery detection device connected to the battery pack, the battery detection device monitors the state of the battery pack, if the voltage is undervoltage, the dc bus charges the battery pack, and if the voltage is undervoltage, the battery supplies power to the dc bus. The process of sensing and optimally energy efficient control of the battery pack may be described as: and calculating a current loss value according to the predicted charging load and the photovoltaic power generation amount, and adjusting a charging load curve according to a difference value of the current loss value and the last loss value, so that the system loss is reduced, and the optimal energy efficiency is achieved.
In the above description, an embodiment of the improved distributed optical storage charging system in the dc microgrid is described, and in an actual application process, an application scenario of the distributed optical storage charging system includes an ac microgrid in addition to the dc microgrid, so that the following description describes an application of the distributed optical storage charging system in the ac microgrid.
For convenience of understanding, please refer to fig. 3, the present application also provides an application example of the improved distributed optical storage charging system in an AC microgrid, as shown in fig. 3, a photovoltaic module is connected with an AC bus, i.e., an AC bus, a battery pack is connected with the AC bus through an energy storage converter, a municipal power grid is connected with the AC bus through a switch, a plurality of groups of charging piles are connected to the AC bus, a power distributor monitors and manages voltage and current of the municipal power grid, the photovoltaic inverter, the energy storage converter and the charging piles, optimal economic benefit and optimal energy efficiency are optimally controlled by controlling charging load State (SOC) of the battery pack and charging current, voltage and other parameters of the charging piles, and alarm information is output at the same time.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (4)
1. An improved distributed optical storage charging system, comprising: the system comprises a photovoltaic component, a unidirectional DC/DC converter, a battery pack, a charging pile, a bidirectional DC/DC converter, an AC/DC converter, a direct current bus and a power distributor;
the photovoltaic assembly is connected with the direct current bus through the unidirectional DC/DC converter;
the battery pack is connected with the direct current bus through the bidirectional DC/DC converter;
the AC/DC converter is connected with a municipal power grid and the power divider;
the power divider is also connected with the unidirectional DC/DC converter and the bidirectional DC/DC converter;
the bidirectional DC/DC converter is connected with the AC/DC converter and the battery pack;
the direct current bus is connected with a plurality of groups of charging piles;
the charging piles of the plurality of groups are connected with the power distributor.
2. The improved distributed optical storage and charging system of claim 1, wherein said power splitter comprises: the system comprises a CAN bus controller, an RS485 controller, an Ethernet controller, a PT/CT converter, a photovoltaic inverter, an energy storage converter and a central processing unit;
the CAN bus controller, the RS485 controller, the PT/CT converter and the Ethernet controller are all electrically connected with the central processing unit;
the RS485 controller comprises a first RS485 controller and a second RS485 controller;
the central processor is connected with a plurality of groups of the photovoltaic inverters through the first RS485 controller, and is connected with a plurality of groups of the energy storage converters through the second RS485 controller;
the central processor is connected with a plurality of groups of charging piles through the CAN bus controller;
the central processing unit is in communication connection with a management background of the distributed optical storage charging system through the Ethernet controller;
and the PT/CT converter is used for collecting the grid voltage, the grid current and the load current of the distributed light storage charging system.
3. The improved distributed optical storage and charging system of claim 2, further comprising: an I/O controller;
the central processing unit is connected with an alarm circuit through the I/O controller.
4. The improved distributed optical storage and charging system of claim 2 or 3, further comprising a battery detection device connected to said battery pack.
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| CN201920700247.2U CN210011628U (en) | 2019-05-15 | 2019-05-15 | Improved distributed light storage charging system |
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| CN201920700247.2U CN210011628U (en) | 2019-05-15 | 2019-05-15 | Improved distributed light storage charging system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262298A (en) * | 2020-03-09 | 2020-06-09 | 上海度普新能源科技有限公司 | Charging pile and charging control method and circuit thereof |
| CN111864778A (en) * | 2020-07-14 | 2020-10-30 | 易事特集团股份有限公司 | Charging and battery replacing control system and charging and battery replacing cabinet |
| CN112531760A (en) * | 2020-12-07 | 2021-03-19 | 南方电网调峰调频发电有限公司 | Light storage and charging integrated layered coordination control system and control strategy thereof |
| CN113328441A (en) * | 2021-06-25 | 2021-08-31 | 深圳市建筑科学研究院股份有限公司 | Building power distribution system, mains power control method and mains power controller |
| CN113859009A (en) * | 2021-09-27 | 2021-12-31 | 国网北京市电力公司 | Charging pile power supply method and device, storage medium and processor |
| CN114301053A (en) * | 2021-12-29 | 2022-04-08 | 北京百度网讯科技有限公司 | Power supply system, control method and data center |
-
2019
- 2019-05-15 CN CN201920700247.2U patent/CN210011628U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262298A (en) * | 2020-03-09 | 2020-06-09 | 上海度普新能源科技有限公司 | Charging pile and charging control method and circuit thereof |
| CN111262298B (en) * | 2020-03-09 | 2021-11-23 | 上海度普新能源科技有限公司 | Charging pile and charging control method and circuit thereof |
| CN111864778A (en) * | 2020-07-14 | 2020-10-30 | 易事特集团股份有限公司 | Charging and battery replacing control system and charging and battery replacing cabinet |
| CN111864778B (en) * | 2020-07-14 | 2024-05-28 | 易事特集团股份有限公司 | Charging and changing control system and charging and changing cabinet |
| CN112531760A (en) * | 2020-12-07 | 2021-03-19 | 南方电网调峰调频发电有限公司 | Light storage and charging integrated layered coordination control system and control strategy thereof |
| CN113328441A (en) * | 2021-06-25 | 2021-08-31 | 深圳市建筑科学研究院股份有限公司 | Building power distribution system, mains power control method and mains power controller |
| CN113859009A (en) * | 2021-09-27 | 2021-12-31 | 国网北京市电力公司 | Charging pile power supply method and device, storage medium and processor |
| CN114301053A (en) * | 2021-12-29 | 2022-04-08 | 北京百度网讯科技有限公司 | Power supply system, control method and data center |
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