CN206060228U - A kind of intelligent distributed photovoltaic plant accesses power distribution network control device - Google Patents
A kind of intelligent distributed photovoltaic plant accesses power distribution network control device Download PDFInfo
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- CN206060228U CN206060228U CN201621090174.2U CN201621090174U CN206060228U CN 206060228 U CN206060228 U CN 206060228U CN 201621090174 U CN201621090174 U CN 201621090174U CN 206060228 U CN206060228 U CN 206060228U
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- isolated island
- distribution network
- unit
- power distribution
- control device
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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
- 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
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of intelligent distributed photovoltaic plant accesses power distribution network control device; including photovoltaic power station core controller, electric parameters collection and transmission unit, isolated island monitoring for protection unit and grid-connected power control unit; affiliated photovoltaic power station core controller connects electric parameters collection and transmission unit, isolated island monitoring for protection unit and grid-connected power control unit respectively, and isolated island monitoring for protection unit is also connected with isolated island detection module.The intelligent distributed photovoltaic plant access power distribution network control device of this utility model is powerful, and simple structure is safe and practical, simple operation.
Description
Technical field
This utility model is related to a kind of control device, and specifically a kind of intelligent distributed photovoltaic plant accesses power distribution network control
Device.
Background technology
As increasing photovoltaic power station accesses power distribution network, especially big rule of photovoltaic generating system in recent years
Mould dispersion is accessed, and the impact to power distribution network is very big, can not meet grid company to electricity based on traditional power station access way
The management and maintenance of net.Photovoltaic power station disperses wide, many quantity, monomer small scale, accesses the links of power distribution network, because
This, traditional electrical network supervision is difficult to guard method, the grid-connected system based on inverter, in quality of power supply side
The aspects such as face, defencive function, its reliability, safety can not fully meet electrical network and user equipment safe operation and maintenance dimension
Shield requires that its data acquisition communication function is also and imperfection.In terms of isolated island protection, conventional inverter passive type isolated island detection institute
The blind area of presence also brings potential security threat to total system.Energy management is accessed in large-scale distributed photovoltaic plant
Control aspect, is substantially at unordered control, does not have feasible energy management and control algolithm.Available data analysis shows, are dividing
It is relatively simple easy that cloth power grid point or Rendezvous Point install intelligent distributed photovoltaic plant additional and access power distribution network control device
Means, especially for the same grid entry point of multi-path distributed plant-grid connection or the electricity generation system of multiple spot, it is especially desirable to install control additional
Device processed.This device is by photovoltaic power station core controller, electric parameters collection and transmission unit, isolated island monitoring for protection list
First, four part of grid-connected power control unit composition, not only increases the safety coefficient that distributed power grid accesses power distribution network, reduces
The improvement cost of power distribution network, while the cost of user distribution formula photovoltaic electric station grid connection access is also reduced, and later stage debugging is simple,
Maintenance cost is low.
The content of the invention
The purpose of this utility model is to provide a kind of intelligent distributed photovoltaic plant to access power distribution network control device, to solve
The problem proposed in certainly above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme：
A kind of intelligent distributed photovoltaic plant accesses power distribution network control device, including the control of photovoltaic power station core
Device, electric parameters collection and transmission unit, isolated island monitoring for protection unit and grid-connected power control unit, affiliated photovoltaic power station
Core controller connects electric parameters collection and transmission unit, isolated island monitoring for protection unit and grid-connected power control unit respectively, lonely
Island monitoring for protection unit is also connected with isolated island detection module.
As preferred version of the present utility model：The isolated island detection module includes that the detection of active isolated island and passive isolated island are examined
Survey.
As preferred version of the present utility model：The photovoltaic power station core controller and electric parameters collection and biography
Communicated by RS485 between defeated unit, isolated island monitoring for protection unit.
As preferred version of the present utility model：The photovoltaic power station core controller and grid-connected Power Control list
Unit by RS485, Ethernet, optical fiber, wirelessly in one kind communicated.
Compared with prior art, the beneficial effects of the utility model are：The intelligent distributed photovoltaic plant of this utility model connects
Enter power distribution network control device powerful, simple structure is safe and practical, simple operation.
Description of the drawings
Fig. 1 is the overall block diagram of the toilet seat with function of temperature control；
Fig. 2 is to access power distribution network control device equipment according to the intelligent distributed photovoltaic plant of this utility model embodiment
Software flow figure；
Fig. 3 is to access power distribution network control device equipment fortune according to the intelligent distributed photovoltaic plant of this utility model embodiment
Row flow chart.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Fig. 1-3 are referred to, a kind of intelligent distributed photovoltaic plant accesses power distribution network control device, including distributed photovoltaic electricity
Core controller, the electric parameters of standing are gathered and transmission unit, isolated island monitoring for protection unit and grid-connected power control unit, affiliated distribution
Formula photovoltaic plant core controller connects electric parameters collection and transmission unit, isolated island monitoring for protection unit and grid-connected power control respectively
Unit processed, isolated island monitoring for protection unit are also connected with isolated island detection module.
Isolated island detection module includes that the detection of active isolated island and passive isolated island are detected.
Lead between photovoltaic power station core controller and electric parameters collection and transmission unit, isolated island monitoring for protection unit
Cross RS485 to be communicated.Photovoltaic power station core controller passes through RS485, Ethernet, light with grid-connected power control unit
One kind in fine, wireless is communicated.
Operation principle of the present utility model is：The intelligent distributed photovoltaic plant of this utility model accesses power distribution network control device
1）Photovoltaic power station core controller, possesses power station energy management and control algolithm, can be optimized by communication link
Each generating equipment inside power station, to meet the demand of electrical network or remote terminal configuration, while internal have inside distributed power station
Electric energy quality monitoring function, the quality of power supply of each key point inside Real-time Collection power station, data can be used for the power station quality of power supply and control
Reason control.2）Electric parameters are gathered and transmission unit, by all kinds of power sensors, monitor voltage, the electricity of various distributed power sources
Stream, active power, reactive power, system frequency, working condition and power factor etc., the real-time upload function of data of collection,
To distributed power source overall system control transmission information.Be provided simultaneously with data short-term and locally preserve function, data are prevented because of network
Failure and he loses.3）Isolated island monitoring for protection unit, is detected with advanced active isolated island using traditional passive island detection method
Method combines, and reduces the blind area of isolated island detection to greatest extent.4）Grid-connected power control unit, using advanced energy efficiency of equipment
Management software, it is active to photovoltaic power station with idle scheduling with control, be easy to power network dispatching system or remote management
Personnel carry out the management of power station power.
As shown in figure 1, the intelligent distributed photovoltaic plant of this utility model embodiment accesses the master of power distribution network control device
Circuit theory diagrams, it can be seen that photovoltaic power station core controller obtains electric energy parameters of electric power, are drawn respectively by algorithm
The parameters such as class power information, the quality of power supply, parameter are uploaded to remotely with transmission unit by electric parameters collection, and locally in short-term
Between preserve, isolated island monitoring for protection unit and grid-connected power control unit are that stand alone software is run, and manage isolated island respectively and monitor, and
Distributed power station Power Control, two modules keep real-time communication, communication link mode with photovoltaic power station core controller
Can be 485, optical fiber or wireless.
As shown in Fig. 2 the intelligent distributed photovoltaic plant of this utility model embodiment accesses power distribution network control device equipment
Operational flow diagram, Fig. 2 is software system control flow, and Control System Software is multiple process control system, and each management of process is each
From control algolithm, interacted by shared drive.Software process is broadly divided into data acquisition process, web processes, control into
System components are combined closely by journey, other processes, these processes, also some system processs, such as failure managing process etc.,
These processes are responsible for the reliable and stable operation of system.
Fig. 3 is to access power distribution network control device equipment fortune according to the intelligent distributed photovoltaic plant of this utility model embodiment
Row flow chart, comprises the following steps that：Step S1, power-on enter configuration surface and interface；Step S2, to system items control function
Parameter is configured；Step S3, the function of being taken by every allocation list, selected needs and the method for operation；Step S4, by soft
Part starts other processes, and system formally starts；Step S5, in equipment running process, can carry out equipment by local touch screen
The adjustment of parameter, it is also possible to which, by the adjustment for remotely carrying out device parameter, after adjustment is preserved, next controlling cycle system can be again
Execute instruction.
Power distribution network control device is accessed according to the intelligent distributed photovoltaic plant of this utility model example, is that a collection data are adopted
Integrate the high intelligent distributed light of communication, every parameters of electric power monitoring, electric energy quality monitoring, isolated island protection and Power Control
Overhead utility access control apparatus, with stable, reliability, safety, simple operation, later maintenance are simple, before can saving in a large number
The cost of investment of electrical network is accessed in phase power station, and taken up space little.This utility model example uses high reliability communication network, can be with
Tele-control system, or dispatching of power netwoks seamless connection, realize " remote measurement, remote signalling, remote control ", and data communication method can be according to long-range control
Agreement processed is customized.The intelligent distributed photovoltaic plant of this utility model example accesses power distribution network control device using various external
Contact interface, with 485 interface of multichannel, multichannel Ethernet interface, 3G, 4G, GPRS network, extendible DI, DO port of multichannel,
Multi-analog interface, can conveniently access plurality of devices, and tele-control system.This utility model be applied to it is big,
Medium and small photovoltaic power station power distribution network Access Control field, can save traditional multiple interfaces equipment, reduce engineering and make
Valency, while improving the intellectuality in power station, provides the power station level interface of reliable, stable, intelligence for following intelligent power distribution network construction
Control system, this device meet the constructive direction of intelligent distribution network.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specific example ",
Or the description of " some examples " etc. means with reference to specific features, structure, material or the feature bag for changing embodiment or example description
It is contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example are referred to necessarily.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to restriction of the present utility model, one of ordinary skill in the art is without departing from this utility model
Principle and objective in the case of above-described embodiment can be changed in the range of this utility model, change, replace and
Modification.Scope of the present utility model is extremely equal to limit by appended claim.
Claims (4)
1. a kind of intelligent distributed photovoltaic plant accesses power distribution network control device, it is characterised in that including photovoltaic power station
Core controller, electric parameters collection and transmission unit, isolated island monitoring for protection unit and grid-connected power control unit, it is affiliated distributed
Photovoltaic plant core controller connects electric parameters collection and transmission unit, isolated island monitoring for protection unit and grid-connected Power Control respectively
Unit, isolated island monitoring for protection unit are also connected with a kind of intelligent distributed photovoltaic plant of isolated island detection module and access power distribution network control dress
Put, it is characterised in that including photovoltaic power station core controller, electric parameters collection and transmission unit, isolated island monitoring for protection
Unit and grid-connected power control unit, it is single with transmission that affiliated photovoltaic power station core controller connects electric parameters collection respectively
Unit, isolated island monitoring for protection unit and grid-connected power control unit, isolated island monitoring for protection unit are also connected with isolated island detection module.
2. a kind of intelligent distributed photovoltaic plant according to claim 1 accesses power distribution network control device, it is characterised in that
The isolated island detection module includes that the detection of active isolated island and passive isolated island are detected.
3. a kind of intelligent distributed photovoltaic plant according to claim 1 accesses power distribution network control device, it is characterised in that
Pass through between the photovoltaic power station core controller and electric parameters collection and transmission unit, isolated island monitoring for protection unit
RS485 is communicated.
4. a kind of intelligent distributed photovoltaic plant according to claim 1 accesses power distribution network control device, it is characterised in that
The photovoltaic power station core controller and grid-connected power control unit by RS485, Ethernet, optical fiber, it is wireless in
One kind is communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621090174.2U CN206060228U (en) | 2016-09-29 | 2016-09-29 | A kind of intelligent distributed photovoltaic plant accesses power distribution network control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621090174.2U CN206060228U (en) | 2016-09-29 | 2016-09-29 | A kind of intelligent distributed photovoltaic plant accesses power distribution network control device |
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| CN206060228U true CN206060228U (en) | 2017-03-29 |
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| CN201621090174.2U Expired - Fee Related CN206060228U (en) | 2016-09-29 | 2016-09-29 | A kind of intelligent distributed photovoltaic plant accesses power distribution network control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814500A (en) * | 2018-12-28 | 2019-05-28 | 中国电力科学研究院有限公司 | A kind of electric energy control method monitored based on low-voltage load with control integrated apparatus |
| CN111525524A (en) * | 2020-05-13 | 2020-08-11 | 国网山西省电力公司电力科学研究院 | Relay protection method for distributed photovoltaic access power distribution network |
-
2016
- 2016-09-29 CN CN201621090174.2U patent/CN206060228U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109814500A (en) * | 2018-12-28 | 2019-05-28 | 中国电力科学研究院有限公司 | A kind of electric energy control method monitored based on low-voltage load with control integrated apparatus |
| CN111525524A (en) * | 2020-05-13 | 2020-08-11 | 国网山西省电力公司电力科学研究院 | Relay protection method for distributed photovoltaic access power distribution network |
| CN111525524B (en) * | 2020-05-13 | 2022-05-24 | 国网山西省电力公司电力科学研究院 | Relay protection method for distributed photovoltaic access power distribution network |
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| 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: 20170329 Termination date: 20200929 |