CN204947593U - A kind of photovoltaic electric motor car charging station intelligent control system - Google Patents
A kind of photovoltaic electric motor car charging station intelligent control system Download PDFInfo
- Publication number
- CN204947593U CN204947593U CN201520737589.3U CN201520737589U CN204947593U CN 204947593 U CN204947593 U CN 204947593U CN 201520737589 U CN201520737589 U CN 201520737589U CN 204947593 U CN204947593 U CN 204947593U
- Authority
- CN
- China
- Prior art keywords
- module
- buck
- boost converter
- converter body
- energy
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The utility model provides a kind of photovoltaic electric motor car charging station intelligent control system, comprises energy acceptance and converting unit, energy storage and assignment control, Energy transmission unit and common DC bus; Described energy acceptance and converting unit, energy storage and assignment control, Energy transmission unit are articulated on common DC bus respectively.The utility model photovoltaic electric motor car charging station intelligent control system has the advantages such as structure is simple, charge efficiency is high, security reliability, long service life.
Description
Technical field
The utility model relates to technical field of solar, is specifically a kind of photovoltaic electric motor car charging station intelligent control system.
Background technology
Along with the development of society, speed is slow, the bicycle that expends muscle power progressively replace by electric motor car.The area that particularly public transport is crowded, limits again the use of motorcycle, and electric motor car then becomes the optimal selection of the daily trip on and off duty of people.Along with the development of China's economic, electric motor car (containing electric automobile) must for becoming the preferred traffic instrument of numerous its people, the growth of electric motor car, and particularly the growth of a large amount of electric automobile, must have a large amount of charging stations supporting with it.Simultaneously along with the continuous maturation of solar energy generation technology and electricity storage technology and perfect, solar energy will be applied to field of traffic more.Photovoltaic charging station is as one generation of electricity by new energy energy storage type charging station effectively, it utilizes solar module to generate electricity, and the electrical power storage produced in the energy storage devices such as storage battery, make use of new forms of energy electric power and technology effectively, for electric motor car provides power source charges, reach the effect of energy-conserving and environment-protective.Solar charging power station institute electricity is by appropriate design and build and can directly be supplied to the charging such as electric bicycle, electric automobile.Current, China's photovoltaic charging station control system technical research deepens continuously, and compared with American-European countries, appoints and has many gaps.
Current photovoltaic charging station control system technology mainly needs in following several respects.First, solar cell power generation cost compare is high, so reasonably utilize and store the key component that solar energy is solar power system.Traditional storage battery is high due to its energy density, is widely used in independent photovoltaic generating system.But storage battery power output capacity is not enough, and the life-span is not long, in order to meet high-power in short-term, configuration is greater than regular load capacity and causes serious waste.Secondly, Application of Solar Energy efficiency has much room for improvement, and operationally, along with the difference of intensity of sunshine, ambient temperature, its terminal voltage will change solar cell, and power output is changed, therefore solar cell itself is a kind of power supply of extremely unstable.Improve photovoltaic applied energy, a kind of control strategy must be studied, allow photovoltaic conversion efficiency maximum all the time.Finally, photovoltaic charging station only has the trickle charge mode of DC charging in the market, and photovoltaic DC power supply can not be powered to AC load, lacks the diversity of charging modes.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that a kind of structure is simple, charge efficiency is high, security reliability, long service life, is convenient to the photovoltaic electric motor car charging station intelligent control system promoted the use of.
To achieve these goals, the technical solution of the utility model is as follows: a kind of photovoltaic electric motor car charging station intelligent control system, comprises energy acceptance and converting unit, energy storage and assignment control, Energy transmission unit and common DC bus, described energy acceptance and converting unit, energy storage and assignment control, Energy transmission unit are articulated on common DC bus respectively, described energy acceptance and converting unit comprise photovoltaic PV array module, MPPT module and DC/DC module one, and photovoltaic PV array module is connected with MPPT module, and MPPT module is connected with DC/DC module one, and DC/DC module one is articulated on common DC bus, described energy storage and assignment control comprise One Buck-Boost converter body one, One Buck-Boost converter body two, storage battery, ultracapacitor, information acquisition module and central controller, One Buck-Boost converter body one and One Buck-Boost converter body two are articulated on common DC bus respectively, and One Buck-Boost converter body one and One Buck-Boost converter body two respectively with storage battery, ultracapacitor is connected, DC/DC module one, One Buck-Boost converter body one is all connected with information acquisition module with One Buck-Boost converter body two, information acquisition module is connected with central controller, central controller is connected with One Buck-Boost converter body two with One Buck-Boost converter body one respectively.
Further, described Energy transmission unit comprises DC/AC module, DC/DC module two and load, and DC/AC module and DC/DC module two are all articulated on common DC bus, and DC/AC module, DC/DC module two are connected with load respectively.
Further, described energy storage and assignment control also comprise the load switch for control load, and central controller is connected with load switch.
Further, described load is connected with information acquisition module.
After adopting technique scheme, the utility model compared with prior art, has the following advantages:
One, adopt ultracapacitor and accumulator hybrid energy-storing pattern, when the output power from photovoltaic cells in system is greater than load rating power, unnecessary energy is stored in storage battery and ultracapacitor by One Buck-Boost converter body.When power output is not enough, power stable by the proof load of powering of storage battery and ultracapacitor.Ultracapacitor can bear the frequent fluctuation part in energy storage load, the advantage such as better can play that ultracapacitor has extended cycle life, high-power fan-out capability is strong like this and response speed is rapid, can also avoid the shortcoming that ultracapacitor energy storage is not high simultaneously effectively.For storage battery, can reduce that frequent discharge and recharge brings like this partial circulating charge and discharge phenomena, reach the object of increasing storage battery service life.
Two, adopt maximum power point-tracing control method (MPPT) to make photovoltaic conversion reach an automatic optimal process, optimum intellectuality realizes photovoltaic energy maximum power output.
Three, ultracapacitor and storage battery all adopt two-way Buck-Boost change-over circuit to be connected with common DC bus, are convenient to energy management, and storage battery need not mate with female end voltage one with ultracapacitor voltage grade.
Four, system exports and adopts DC/DC and DC/AC inversion two kinds of modes, and electric motor car so can be provided to fill soon and trickle charge pattern, is conducive to electric motor car charging diversity, more selects to user.
Accompanying drawing explanation
Accompanying drawing 1 is the structured flowchart of the utility model photovoltaic electric motor car charging station intelligent control system.
Accompanying drawing 2 is circuit diagrams of information acquisition module.
Shown in figure: 1, energy acceptance and converting unit 11, photovoltaic PV array module 12, MPPT module 13, DC/DC module 1, energy storage and assignment control 21, One Buck-Boost converter body 1, One Buck-Boost converter body 2 23, storage battery 24, ultracapacitor 25, information acquisition module 26, central controller 27, load switch 3, Energy transmission unit 31, DC/AC module 32, DC/DC module 2 33, load 4, common DC bus.
Embodiment
Below by drawings and Examples, the utility model is further elaborated.
As shown in Figure 1: a kind of photovoltaic electric motor car charging station intelligent control system, comprises energy acceptance and converting unit 1, energy storage and assignment control 2, Energy transmission unit 3 and common DC bus 4.Energy acceptance and converting unit 1, energy storage and assignment control 2, Energy transmission unit 3 are articulated on common DC bus 4 respectively.Energy acceptance and converting unit 1 comprise photovoltaic PV array module 11, MPPT module 12 and DC/DC module 1.Photovoltaic PV array module 11 is connected with MPPT module 12, and MPPT module 12 is connected with DC/DC module 1, and DC/DC module 1 is articulated on common DC bus 4.Energy storage and assignment control 2 comprise One Buck-Boost converter body 1, One Buck-Boost converter body 2 22, storage battery 23, ultracapacitor 24, information acquisition module 25 and central controller 26.Central controller 26 adopts model to be the dsp chip of TMS320F2812.One Buck-Boost converter body 1 and One Buck-Boost converter body 2 22 are articulated on common DC bus 4 respectively, and One Buck-Boost converter body 1 is connected with storage battery 23, ultracapacitor 24 respectively with One Buck-Boost converter body 2 22.DC/DC module 1, One Buck-Boost converter body 1 are all connected with information acquisition module 25 with One Buck-Boost converter body 2 22, information acquisition module 25 is connected with central controller 26, and central controller 26 is connected with One Buck-Boost converter body 2 22 with One Buck-Boost converter body 1 respectively.
Above-described information acquisition module 25 is for the collection of signal, signals collecting is mainly sampled accurately to the voltage etc. in photovoltaic generating system running, the running status of system can be understood at any time, if Fig. 2 is the voltage sampling circuit of system dc signal.Voltage sampling circuit first carries out electric resistance partial pressure to the output voltage of photovoltaic array, through process such as voltage followers, finally the suitable signal obtained is sent into the AD port of dsp chip.
In the present embodiment, Energy transmission unit 3 comprises DC/AC module 31, DC/DC module 2 32 and load 33, DC/AC module 31 and DC/DC module 2 32 is all articulated on common DC bus 4, and DC/AC module 31, DC/DC module 2 32 are connected with load 33 respectively.
In the present embodiment, energy storage and assignment control 2 also comprise the load switch 27 for control load 33, and central controller 26 is connected with load switch 27.And described load 33 is connected with information acquisition module 25.
Be below the operation principle of the utility model photovoltaic electric motor car charging station intelligent control system:
Energy acceptance and converting unit 1 receive solar energy by photovoltaic PV array module 11, the energy of maximum power point tracking MPPT module 12 pairs of photovoltaic PV array modules 11 is adopted to process, obtain maximum Energy transmission, export energy through DC/DC module 1, photovoltaic voltage is processed, the voltage that the system that is met is suitable, this voltage is outputted on common DC bus 4, energizing quantity stores and carries out energy distribution process with assignment control 2, outputs to output unit finally by common DC bus 4.
One Buck-Boost converter body (comprising One Buck-Boost converter body 1 and One Buck-Boost converter body 2 22) inside is made up of elements such as IGBT switching tube and diodes, central controller 26 is by the control to IGBT switching tube in One Buck-Boost converter body 1 and One Buck-Boost converter body 2 22, make circuit have charge and discharge function, reversible transducer circuit realizes the two-way flow of energy.Information acquisition module 25 gathers storage battery 23, ultracapacitor 24, voltage in energy acceptance and converting unit 1 and Energy transmission unit 3, the signals such as power, and output in central controller 26, central controller 26 carries out analyzing and processing, and according to the energy control strategy preset, realize One Buck-Boost converter body 1, One Buck-Boost converter body 2 22 and load switch 27 control, control storage battery 23 and ultracapacitor 24 charging and discharging function, the mode of operation of both decisions, the object changing the sense of current is realized under the condition not changing One Buck-Boost converter body input and output voltage direction.Output voltage is connected with Energy transmission unit 3 with common DC bus 4.
DC/DC module 2 32 provides DC load 33 to export, and adopts DC/DC circuit, can obtain multichannel different brackets direct voltage, for different loads 33 class user, have and fill function soon.DC/AC module 31 major function is that direct current is converted to alternating current, has trickle charge function, can be supplied to the interchange user carrying electric car charger and use, realize charging diversity, more select to user.
Be below the energy main control strategies of the utility model photovoltaic electric motor car charging station intelligent control system:
Make storage battery 23 remain on more highly charged state for a long time, reduce storage battery 23 charge and discharge cycles number of times.Therefore, in the course of the work, System Priority is that storage battery 23 charges.If the output power from photovoltaic cells is greater than load 33 power requirement, unnecessary energy charges to storage battery 23 and ultracapacitor 24.If the output power from photovoltaic cells is less than load 33 power requirement, storage battery 23 provides deficit power to ensure common DC bus 4 voltage stabilization.If load 33 chugging, start ultracapacitor 24 and discharge for load 33, percussion power is provided.If ultracapacitor 24 and storage battery 23 long for discharge time, terminal voltage reach overdischarge pressure time, cut off load switch 27, again load 33 is charged after ultracapacitor 24 and storage battery 23 voltage rise.Give an example, such as cloudy continuously, the electric energy of charging station cannot meet charging requirement, and now central controller 26 control load switch 27 cuts off, and load 33 cannot be charged, and so also can play a protective role to charging station, increase the service life.
Claims (4)
1. a photovoltaic electric motor car charging station intelligent control system, is characterized in that: comprise energy acceptance and converting unit, energy storage and assignment control, Energy transmission unit and common DC bus, described energy acceptance and converting unit, energy storage and assignment control, Energy transmission unit are articulated on common DC bus respectively, described energy acceptance and converting unit comprise photovoltaic PV array module, MPPT module and DC/DC module one, and photovoltaic PV array module is connected with MPPT module, and MPPT module is connected with DC/DC module one, and DC/DC module one is articulated on common DC bus, described energy storage and assignment control comprise One Buck-Boost converter body one, One Buck-Boost converter body two, storage battery, ultracapacitor, information acquisition module and central controller, One Buck-Boost converter body one and One Buck-Boost converter body two are articulated on common DC bus respectively, and One Buck-Boost converter body one and One Buck-Boost converter body two respectively with storage battery, ultracapacitor is connected, DC/DC module one, One Buck-Boost converter body one is all connected with information acquisition module with One Buck-Boost converter body two, information acquisition module is connected with central controller, central controller is connected with One Buck-Boost converter body two with One Buck-Boost converter body one respectively.
2. a kind of photovoltaic electric motor car charging station intelligent control system according to claim 1, it is characterized in that: described Energy transmission unit comprises DC/AC module, DC/DC module two and load, DC/AC module and DC/DC module two are all articulated on common DC bus, and DC/AC module, DC/DC module two are connected with load respectively.
3. a kind of photovoltaic electric motor car charging station intelligent control system according to claim 1, is characterized in that: described energy storage and assignment control also comprise the load switch for control load, and central controller is connected with load switch.
4. a kind of photovoltaic electric motor car charging station intelligent control system according to claim 2, is characterized in that: described load is connected with information acquisition module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737589.3U CN204947593U (en) | 2015-09-23 | 2015-09-23 | A kind of photovoltaic electric motor car charging station intelligent control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737589.3U CN204947593U (en) | 2015-09-23 | 2015-09-23 | A kind of photovoltaic electric motor car charging station intelligent control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204947593U true CN204947593U (en) | 2016-01-06 |
Family
ID=55014982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520737589.3U Expired - Fee Related CN204947593U (en) | 2015-09-23 | 2015-09-23 | A kind of photovoltaic electric motor car charging station intelligent control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204947593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649710A (en) * | 2019-10-18 | 2020-01-03 | 国网江苏省电力有限公司盐城供电分公司 | Energy storage intelligent control system based on solar power supply |
-
2015
- 2015-09-23 CN CN201520737589.3U patent/CN204947593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649710A (en) * | 2019-10-18 | 2020-01-03 | 国网江苏省电力有限公司盐城供电分公司 | Energy storage intelligent control system based on solar power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105904976B (en) | A kind of fuel cell hybrid locomotive Energy Management System and method | |
| CN103904735B (en) | A kind of energy storage subsystem for batch (-type) renewable energy system and control method thereof | |
| CN202550569U (en) | Wind and light complementary energy storage power generation system | |
| CN102868195B (en) | System for charging electromobile by utilizing electrical energy of scene electric supply complementation street lamp | |
| CN202586481U (en) | Micro electrical network intelligent balanced charging and power supply system | |
| CN204190691U (en) | Solar battery power Management Controller | |
| CN103078523B (en) | Control method for solar energy electric bicycle hybrid energy control system | |
| CN102738885A (en) | Storage battery energy storage and photovoltaic power generation hybrid system | |
| CN105471075A (en) | Photovoltaic charging unit for electric vehicle | |
| CN111641230A (en) | All-weather power supply system based on natural energy collection | |
| CN210327132U (en) | Charging device and direct current light storage and charging integrated shed | |
| CN102570514A (en) | Mains supply complementary solar photovoltaic charging system for electric car | |
| CN202712956U (en) | Storage battery energy storage and photovoltaic power generation hybrid system | |
| CN218021224U (en) | Photovoltaic system of new energy vehicle | |
| CN204947593U (en) | A kind of photovoltaic electric motor car charging station intelligent control system | |
| CN108121393A (en) | A kind of accumulator charging maximum power point-tracing control method | |
| CN202949236U (en) | Distributed power supply control system | |
| CN202997587U (en) | Intelligent micro-network distributed power supply | |
| CN202586478U (en) | Photovoltaic power generation system | |
| CN202511178U (en) | Solar grid-connected street lamp | |
| CN104485716A (en) | Solar electrical bicycle charging device additionally installed on parking shed | |
| CN204304538U (en) | A kind of solar electric vehicle charging device being installed at carport | |
| CN205429854U (en) | Electric automobile solar charging system | |
| CN204190669U (en) | A kind of wind and solar hybrid generating system | |
| CN204721022U (en) | A kind of charge and discharge device of complementation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20180923 |