CN205846720U - A kind of low-voltage direct micro-capacitance sensor experiment porch - Google Patents
A kind of low-voltage direct micro-capacitance sensor experiment porch Download PDFInfo
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- CN205846720U CN205846720U CN201620511274.1U CN201620511274U CN205846720U CN 205846720 U CN205846720 U CN 205846720U CN 201620511274 U CN201620511274 U CN 201620511274U CN 205846720 U CN205846720 U CN 205846720U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/14—District level solutions, i.e. local energy networks
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This utility model relates to a kind of low-voltage direct micro-capacitance sensor experiment porch, mainly includes controller and the single-phase AC/DC current transformer all communicated to connect, direct-current grid, electrical network connecting valve with controller；Described single-phase AC/DC current transformer input can pass through electrical network connecting valve incoming transport electrical network；Described direct-current grid includes MPPT controller, the energy-storage system of band DC/DC current transformer, charging pile, important load, interruptible load, elastic load；Described MPPT controller connects photovoltaic battery panel；Described single-phase AC/DC current transformer outfan is connected in parallel with direct-current grid each unit respectively.This utility model can realize direct-current grid off-network and be switched fast to off-grid to grid-connected, grid-connected, it is possible to facilitate direct-current grid is carried out experimental verification.
Description
Technical field
This utility model relates to micro-capacitance sensor experiment porch field, particularly relates to a kind of low-voltage direct micro-capacitance sensor experiment porch.
Background technology
Micro-capacitance sensor structure specifically includes that exchange micro-capacitance sensor, direct-current grid and mixing micro-capacitance sensor at present.Conventional research master
Exchange micro-capacitance sensor to be concentrated on, being continuously increased however as DC load, direct-current grid has relative to exchange micro-capacitance sensor
Energy conversion times is few, efficiency is high, low cost, control structure simple, without considering frequency and phase place and reactive-load compensation equipment
Etc. advantage, promote the fast development of direct-current grid, but the research of direct-current grid experiment porch is less, it is difficult to be micro-to direct current
Electrical network research method carries out experimental verification.
Utility model content
In order to overcome deficiency and the shortage of existing experiment porch, it is provided that a kind of low-voltage direct micro-capacitance sensor experiment porch, this reality
By novel offer techniques below scheme:
A kind of low-voltage direct micro-capacitance sensor experiment porch, including controller and the single-phase AC/ that all communicates to connect with controller
DC current transformer, direct-current grid, electrical network connecting valve；Described single-phase AC/DC current transformer input can be connected by electrical network to be opened
Close incoming transport electrical network；Described direct-current grid includes MPPT controller, the energy-storage system of band DC/DC current transformer, charging pile, weight
Want load, interruptible load, elastic load；Described MPPT controller connects photovoltaic battery panel；Described single-phase AC/DC current transformer is defeated
Go out end to be connected in parallel with direct-current grid each unit respectively；The energy-storage system of described band DC/DC current transformer includes DC/DC current transformer
And coupled accumulator.
When described direct-current grid is operated in grid-connect mode, direct-current grid connects alternating current by single-phase AC/DC current transformer
Net, carries out energy exchange.Described direct-current grid can also run on island mode, stable DC busbar voltage, bears to direct current
Carry power supply.When direct-current grid is grid-connected, electrical network needs the power of output to exceed the rated power of described current transformer, now described
Low-voltage direct micro-capacitance sensor is operated in current transformer Current limited Control pattern.And can carry out on described direct-current grid experiment porch
Off-network is to grid-connected, grid-connected to off-network switching experiment.
Described low-voltage direct micro-capacitance sensor experiment porch can carry out battery management.The controller each accumulator capacity of collection,
The information such as SOC carry out judging accumulator charging, electric discharge, issue instructions to DC/DC current transformer, prevent accumulator from crossing punching or excessively putting,
Increasing storage battery service life.Described controller can carry out energy management, controller to described low-voltage direct micro-capacitance sensor platform
DC/DC current transformer energy-storage system working method is determined according to accumulator SOC, micro-capacitance sensor operational mode and load curve.
Further, described single-phase AC/DC current transformer, direct-current grid each unit and electrical network connecting valve all pass through
RS485 bus is connected with controller；Each unit passes through RS485 bus each self-information such as voltage, electric current, output, electric power storage
Cell voltage, SOC etc. pass to controller, and controller is optimized management according to gained information, then passes on life by RS485 bus
Order is to each unit.
Further, described important load, interruptible load, elastic load respectively with respective switch connect after again with list
Phase AC/DC current transformer outfan is connected in parallel；Described important load, interruptible load, the switch of elastic load pass through respectively
RS485 bus is connected with controller.Controller determines energy storage according to accumulator SOC, micro-capacitance sensor operational mode and load curve
System operating mode and determine important load, interruptible load, the switching on and off of elastic load, described controller can be tested
Card Demand-side load optimal management function, is optimized management according to charging pile information to load.
The beneficial effects of the utility model are:
(1), described low-voltage direct micro-capacitance sensor platform can run on grid-connect mode, current transformer current-limit mode and isolated island mould
Formula, and the experiment of each pattern seamless switching can be carried out.
(2), described low-voltage direct micro-capacitance sensor platform can carry out accumulator cell charging and discharging management.
(3), described controller can carry out mains side optimum management research, can with researching DC micro-capacitance sensor economic needs,
Power supply reliability demand, the quality of power supply etc..
(4), in technical solutions of the utility model, it is excellent that described controller can carry out Demand-side load according to charging pile information
Change management misconduct.
Accompanying drawing explanation
Fig. 1 is this utility model experiment porch block diagram.
In figure: 1, AC network, 2, electrical network connecting valve, 3, direct-current grid, 4, photovoltaic battery panel, 5, RS485 bus.
Detailed description of the invention
See Fig. 1, including controller and all with controller communication connection single-phase AC/DC current transformer, direct-current grid
3, electrical network connecting valve 2；Described single-phase AC/DC current transformer input can pass through electrical network connecting valve 2 incoming transport electrical network 1；
Described direct-current grid 3 include MPPT controller, the energy-storage system of multiple band DC/DC current transformer, charging pile, important load, can
Interruptible load, elastic load；Described MPPT controller connects photovoltaic battery panel 4；Described single-phase AC/DC current transformer outfan is respectively
It is connected in parallel with direct-current grid 3 each unit；The energy-storage system of described band DC/DC current transformer include DC/DC current transformer and with
Its accumulator being connected.The present embodiment middle controller uses DSP28335.
Described important load, interruptible load, elastic load become with single-phase AC/DC after connecting with respective switch respectively again
Stream device outfan is connected in parallel；Above-mentioned 3 switches are connected with controller by RS485 bus 5 respectively.
In described low-voltage direct micro-capacitance sensor 3 experiment porch, by described single-phase AC/DC current transformer direct-current grid 3 even
It is connected to AC network 1, when being operated in grid-connect mode, when described direct-current grid 3 generates electricity more, described single-phase AC/DC unsteady flow
Device is operated in inverter mode；When described direct-current grid 3 underpower, described single-phase AC/DC current transformer is operated in rectification mould
Formula.When described low-voltage direct micro-capacitance sensor 3 experiment porch is operated in island mode, energy-storage system maintains DC bus-bar voltage, maintains
System stability and the quality of power supply.The grid-connected seamless switching of off-network is carried out by described single-phase AC/DC current transformer.
When described low-voltage direct micro-capacitance sensor 3 experiment porch works in current transformer current-limit mode, become by described single-phase AC/DC
Stream device is connected to AC network 1 direct-current grid 3, and when described direct-current grid 3 generates electricity more, described single-phase AC/DC becomes
Stream device is operated in inverter mode, opens elastic load simultaneously and absorbs excess energy；When described direct-current grid 3 underpower,
Described single-phase AC/DC current transformer is operated in rectification mode, excises interruptible load simultaneously.
When described low-voltage direct micro-capacitance sensor 3 experiment porch works in island mode, controller according to photovoltaic generation unit with
And accumulator SOC etc. carries out energy management.Excise interruptible load during system power deficiency, during system power surplus, open elasticity
Load absorption excess energy.
In described low-voltage direct micro-capacitance sensor 3 experiment porch, energy-storage system uses accumulator, by two-way DC/DC changer
It is connected with dc bus.Described controller carries out battery management according to the capacity of each battery, terminal voltage, SOC, extends battery and makes
Use the life-span.Energy-storage system maintains DC bus-bar voltage, it is ensured that the quality of power supply of low-voltage direct micro-capacitance sensor 3 experiment porch.
In described low-voltage direct micro-capacitance sensor 3 experiment porch, controller can carry out orderly Charge Management to charging pile, checking
Demand-side load optimal management method.
Following research can be launched by this utility model low-voltage direct micro-capacitance sensor experiment porch:
1, mixed energy storage system controls technical research and control strategy checking；
2, direct-current grid monitoring, communication experimentation；
3, direct-current grid energy management research and confirmation；
4, the research of direct-current grid droop control and experimental verification；
5, the grid-connected strategy study of direct-current grid and checking；
6, battery management system research and checking.
With above-mentioned foundation this utility model desirable embodiment for enlightenment, by above-mentioned description, relevant staff
Various change and amendment can be carried out completely in the range of without departing from this utility model technological thought.This practicality
The content that novel technical scope is not limited in description, it is necessary to determine that it is technical according to right
Scope.
Claims (3)
1. a low-voltage direct micro-capacitance sensor experiment porch, it is characterised in that: include controller and all communicate to connect with controller
Single-phase AC/DC current transformer, direct-current grid, electrical network connecting valve；Described single-phase AC/DC current transformer input can be by electricity
Net connecting valve incoming transport electrical network；Described direct-current grid include MPPT controller, the energy-storage system of band DC/DC current transformer,
Charging pile, important load, interruptible load, elastic load；Described MPPT controller connects photovoltaic battery panel；Described single-phase AC/
DC current transformer outfan is connected in parallel with direct-current grid each unit respectively；The energy-storage system of described band DC/DC current transformer includes
DC/DC current transformer and coupled accumulator.
2. a kind of low-voltage direct micro-capacitance sensor experiment porch as claimed in claim 1, it is characterised in that: described single-phase AC/DC becomes
Stream device, direct-current grid each unit and electrical network connecting valve are all connected with controller by RS485 bus.
3. low-voltage direct micro-capacitance sensor experiment porch as claimed in claim 1 a kind of, it is characterised in that: described important load, can
Interruptible load, elastic load are connected in parallel with single-phase AC/DC current transformer outfan after connecting with respective switch respectively again；Described
Important load, interruptible load, the switch of elastic load are connected with controller by RS485 bus respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620511274.1U CN205846720U (en) | 2016-05-25 | 2016-05-25 | A kind of low-voltage direct micro-capacitance sensor experiment porch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620511274.1U CN205846720U (en) | 2016-05-25 | 2016-05-25 | A kind of low-voltage direct micro-capacitance sensor experiment porch |
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| Publication Number | Publication Date |
|---|---|
| CN205846720U true CN205846720U (en) | 2016-12-28 |
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| CN201620511274.1U Expired - Fee Related CN205846720U (en) | 2016-05-25 | 2016-05-25 | A kind of low-voltage direct micro-capacitance sensor experiment porch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026074A (en) * | 2016-05-25 | 2016-10-12 | 安徽大学 | Low-voltage DC micro-grid experiment platform |
-
2016
- 2016-05-25 CN CN201620511274.1U patent/CN205846720U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026074A (en) * | 2016-05-25 | 2016-10-12 | 安徽大学 | Low-voltage DC micro-grid experiment platform |
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| 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: 20161228 |