CN205790972U - A kind of intelligent AC header box based on PLC - Google Patents
A kind of intelligent AC header box based on PLC Download PDFInfo
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- CN205790972U CN205790972U CN201620483894.9U CN201620483894U CN205790972U CN 205790972 U CN205790972 U CN 205790972U CN 201620483894 U CN201620483894 U CN 201620483894U CN 205790972 U CN205790972 U CN 205790972U
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- circuit breaker
- header box
- plc
- control unit
- breaker
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Abstract
The utility model discloses a kind of intelligent AC header box based on PLC.It includes header box body; described header box is the most internal is provided with electric parameter measurement instrument, PLC control unit, inlet wire branch circuit breaker, outlet main circuit breaker, protective breaker and surge protector; Stateful Inspection switch and fault monitoring switch it is equipped with on described inlet wire branch circuit breaker, outlet main circuit breaker, protective breaker and surge protector; being equipped with motor-operating mechanism on described inlet wire branch circuit breaker and outlet main circuit breaker, described Stateful Inspection switch, fault monitoring switch and motor-operating mechanism connect the control interface of PLC control unit respectively.This utility model in can realizing header box the duty of each components and parts remotely monitor, control and the monitoring of parameters of electric power, it is possible to quickly judge equipment fault and analyze the change of parameters of electric power, thus improve system run, maintenance and service work efficiency.
Description
Technical field
This utility model belongs to photovoltaic plant technical field, is specifically related to a kind of intelligence based on PLC
Header box can be exchanged.
Background technology
In recent years, along with in greatly developing of photovoltaic generating system, especially photovoltaic generating system
Group string inverter extensive application, exchange header box become requisite equipment in system.
Exchange header box branch road is typically designed as 4 tunnels, 6 tunnels, 8 tunnels, 12 tunnels, 16 tunnels, 20 tunnels,
Every branch road all uses " miniature or breaker of plastic casing "+outlet main road to use " breaker of plastic casing "
Scheme.The components and parts being applied to exchange header box in the market generally there is problems in that a).
Each branch breaker is all unworthy of state and runs and fault alarm contact, it is impossible to remotely monitor its work
State；B). each branch breaker is all unworthy of motor-operating mechanism, it is impossible to remotely control；C). case
The most do not set temperature-humidity sensor, it is impossible to understand the temperature inside the box and humidity in real time, during fault not
Cause of accident can be judged in time.
Summary of the invention
The purpose of this utility model is contemplated to solve the deficiency that above-mentioned background technology exists, it is provided that
A kind of intelligent AC header box based on PLC.
The technical solution adopted in the utility model is: a kind of intelligent AC based on PLC confluxes
Case, including header box body, described header box is the most internal is provided with electric parameter measurement instrument, PLC
Control unit, inlet wire branch circuit breaker, outlet main circuit breaker, protective breaker and surge protection
Device, described electric parameter measurement instrument outfan is connected with PLC control unit input, described in enter
Line branch circuit breaker and protective breaker are connected with outlet main circuit breaker by bus, described protection
Chopper is connected with surge protector, described inlet wire branch circuit breaker, outlet main circuit breaker, guarantor
Protect and on chopper and surge protector, be equipped with Stateful Inspection switch and fault monitoring switch, described
Being equipped with motor-operating mechanism on inlet wire branch circuit breaker and outlet main circuit breaker, described state is supervised
The control of PLC control unit is connected respectively depending on switch, fault monitoring switch and motor-operating mechanism
Interface.
Further, this internal temperature sensor and humidity sensor of being provided with of described header box, institute
The outfan stating temperature sensor and humidity sensor connects the input of PLC control unit respectively
End.
Further, described electric parameter measurement instrument outfan by RS485 communication unit with
PLC control unit input connects.
This utility model arranges Stateful Inspection switch, fault prison on chopper and Surge Protector
Depending on switch and motor-operating mechanism, by the control of PLC control unit, can realize in header box
The duty of each components and parts remotely monitors, controls and the monitoring of parameters of electric power, it is possible to quickly sentence
Disconnected equipment fault and analyze the change of parameters of electric power, for photovoltaic generating system O&M plan, send out
The estimation of electricity provides important evidence；Structure can be optimized, simplify wiring, meet project of transmitting and converting electricity
Demand, thus improve system run, safeguard and service work efficiency.
Accompanying drawing explanation
Fig. 1 is internal layout schematic diagram of the present utility model.
Fig. 2 is the connection diagram of this utility model chopper.
Fig. 3 is control principle drawing of the present utility model.
In figure: 1-header box body；2-electric parameter measurement instrument；3-PLC control unit；4-
Inlet wire branch circuit breaker；5-outlet main circuit breaker；6-protective breaker；7-surge protector；8-
Temperature sensor；9-humidity sensor.
Detailed description of the invention
With specific embodiment, this utility model is made the most below in conjunction with the accompanying drawings
Bright, it is simple to be well understood to this utility model, but they do not constitute restriction to this utility model.
As Figure 1-3, this utility model includes header box body 1, described header box body 1
Inside it is provided with electric parameter measurement instrument 2, PLC control unit 3, inlet wire branch circuit breaker 4, outlet
Main circuit breaker 5, protective breaker 6 and surge protector 7, described electric parameter measurement instrument 4
Outfan is connected communication, institute by RS485 communication unit with PLC control unit 3 input
State inlet wire branch circuit breaker 4 and protective breaker 6 be connected with outlet main circuit breaker 5 by bus,
Described protective breaker 6 is connected with surge protector 7, described inlet wire branch circuit breaker 4, goes out
Stateful Inspection switch it is equipped with on line main circuit breaker 5, protective breaker 6 and surge protector 7
Switch with fault monitoring, described inlet wire branch circuit breaker 4 and outlet main circuit breaker 5 are equipped with
Motor-operating mechanism, described Stateful Inspection switch, fault monitoring switch and motor-operating mechanism divide
Do not connect the control interface of PLC control unit.
Fig. 2 is the wiring schematic diagram of chopper, and in figure, QF1-QF8 is inlet wire branch circuit breaker,
QF0 is outlet main circuit breaker, and QF9 is protective breaker, and the SPD connected with QF9 is electricity
Surge protector, wherein QF0-QF8 respectively from Stateful Inspection switch QF0K1-QF8K1,
Fault monitoring switch QF0K2-QF8K2 and motor-operating mechanism QF0K3-QF8K3, QF9
QF9K2, SPD is switched from shape from Stateful Inspection switch QF9K1 and fault monitoring
State monitors switch SPDK1 and fault monitoring switch SPDK2, as it is shown on figure 3, PLC controls
The each equipment state of status real time monitor that unit switchs according to Stateful Inspection switch and fault monitoring,
The long-range divide-shut brake realizing chopper by controlling motor-operating mechanism controls.
In such scheme, in header box body 1, it is provided with temperature sensor 8 and humidity sensor 9,
The outfan of described temperature sensor 8 and humidity sensor 9 connects PLC control unit 1 respectively
Input.By temperature sensor and humidity sensor, the temperature inside the box that confluxes can be understood in real time
And humidity, cause of accident can be judged during fault in time.
This utility model PLC control unit has integrated-type high-performance: CPU, power supply, input
The output Trinity, can increase special functional module or expansion board；There is high-speed computation, numeral
Amount input and output control, analog input and output control, location controls and pulse output controls,
The online function such as program editing, remote maintenance；Multiple network, data communication and data can be realized
Link.The intrinsic chopper of header box and Surge Protector are arranged Stateful Inspection switch,
Fault monitoring switch and motor-operating mechanism, by the control of PLC control unit, can realize converging
In stream case, the duty of each components and parts remotely monitors, controls and the monitoring of parameters of electric power, it is possible to
Quickly judge equipment fault and analyze the change of parameters of electric power, for the O&M meter of photovoltaic generating system
Draw, the estimation of generated energy provides important evidence；Structure can be optimized, simplify wiring, meet defeated change
The demand of electrical engineering, thus improve system and run, safeguard and service work efficiency.
The content not being described in detail in this specification belongs to known to professional and technical personnel in the field
Prior art.
Claims (3)
1. an intelligent AC header box based on PLC, it is characterised in that: include header box
Body (1), is provided with electric parameter measurement instrument (2), PLC in described header box body (1)
Control unit (3), inlet wire branch circuit breaker (4), outlet main circuit breaker (5), protection open circuit
Device (6) and surge protector (7), described electric parameter measurement instrument (2) outfan and PLC
Control unit (3) input connects, described inlet wire branch circuit breaker (4) and protective breaker
(6) it is connected with outlet main circuit breaker (5) by bus, described protective breaker (6) and electricity
Surge protector (7) connect, described inlet wire branch circuit breaker (4), outlet main circuit breaker (5),
It is equipped with Stateful Inspection switch on protective breaker (6) and surge protector (7) and fault is supervised
Depending on switch, described inlet wire branch circuit breaker (4) and outlet main circuit breaker (5) are equipped with electricity
Pneumatic operating mechanism, described Stateful Inspection switch, fault monitoring switch and motor-operating mechanism are respectively
Connect the control interface of PLC control unit.
A kind of intelligent AC header box based on PLC the most according to claim 1, its
It is characterised by: in described header box body (1), be provided with temperature sensor (8) and humidity sensor
Device (9), the outfan of described temperature sensor (8) and humidity sensor (9) connects respectively
The input of PLC control unit (3).
A kind of intelligent AC header box based on PLC the most according to claim 1, its
Be characterised by: described electric parameter measurement instrument (2) outfan by RS485 communication unit with
PLC control unit (3) input connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620483894.9U CN205790972U (en) | 2016-05-25 | 2016-05-25 | A kind of intelligent AC header box based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620483894.9U CN205790972U (en) | 2016-05-25 | 2016-05-25 | A kind of intelligent AC header box based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205790972U true CN205790972U (en) | 2016-12-07 |
Family
ID=58113721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620483894.9U Active CN205790972U (en) | 2016-05-25 | 2016-05-25 | A kind of intelligent AC header box based on PLC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205790972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243509A (en) * | 2021-12-30 | 2022-03-25 | 江苏通鼎宽带有限公司 | Intelligent AC distribution box |
-
2016
- 2016-05-25 CN CN201620483894.9U patent/CN205790972U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243509A (en) * | 2021-12-30 | 2022-03-25 | 江苏通鼎宽带有限公司 | Intelligent AC distribution box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211228 Address after: 430056, No. 1, Dongfeng central, No. three Dongfeng Road, Wuhan economic and Technological Development Zone, Hubei, Wuhan, A Patentee after: Wuhan Dongyan intelligent design and Research Institute Co.,Ltd. Address before: 430056 Wuhan City, Hubei Province block a, Donghe center, No. 1, Dongfeng Third Road, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Patentee before: DONGFENG DESIGN INSTITUTE Co.,Ltd. |