CN205691979U - The system of transformer cooler group Based Intelligent Control is realized based on two close cycles loop - Google Patents
The system of transformer cooler group Based Intelligent Control is realized based on two close cycles loop Download PDFInfo
- Publication number
- CN205691979U CN205691979U CN201620410502.6U CN201620410502U CN205691979U CN 205691979 U CN205691979 U CN 205691979U CN 201620410502 U CN201620410502 U CN 201620410502U CN 205691979 U CN205691979 U CN 205691979U
- Authority
- CN
- China
- Prior art keywords
- module
- cooler
- intelligent control
- central management
- sampling
- 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.)
- Active
Links
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
This utility model relates to a kind of system realizing transformer cooler group Based Intelligent Control based on two close cycles loop; wherein system includes that central management module, several motor control protection module and transformator data sampling module; described central management module is connected with transformer cooler; described motor controls protection module and is connected with described central management module respectively with transformator data sampling module; described system also includes that prepared auto restart module, described prepared auto restart module are connected between central management module and two sections of power supplys.Use this system, the oil temperature of transformator, load current and the running current of cooler unit can be monitored in real time, be automatically adjusted input and the excision of forced air cooler unit according to these data and transformator temperature control strategy and the operation reserve of cooler, operation time, achieve temperature of oil in transformer, accurately controlling of load and accurately differentiating of Cooler Fault point, improve transformer cooler auto-control degree, there is wider application scope.
Description
Technical field
This utility model relates to electromechanical control field, particularly relates to transformer cooler control field, specifically refers to one
The system of transformer cooler group Based Intelligent Control is realized based on two close cycles loop.
Background technology
The most domestic control system majority to high-power transformer forced oil-circulation air cooler is the air-cooled control of relay-type
System processed, control and the protection of this control model still uses what dynamo-electric logical course loop realized, and its logic circuit is
It is made up of devices such as various choppers, catalyst, thermorelay and electric fuses.
Owing to relay-type air-cooled control loop is by devices such as various choppers, catalyst, thermorelay and electric fuses
, so there is a lot of defect in its running, such as: the major loop of oil-immersed pump and cooler blower fan drives and uses in composition
Catalyst, thus mechanical contact is many, circuit composition complexity, fault rate is high；The protected mode of motor is that electric fuse heats relay
Device, is only capable of motor provides short circuit and overload (phase shortage) protection, it is impossible to carry out failure predication；Control system uses relay to patrol
Collecting and control, automaticity is low.For these reasons so that transformator be in operation reliability reduce, operation maintenance workload
Strengthen.Along with electrical network fast development in recent years, the raising of intelligence degree, unattended operation transformer station is on the increase, again
Owing to high-power transformer itself is worth higher, the impact caused after damage is relatively big, thus requires the reliable of Transformer Forced-Air Cooling System
Property improve and temperature can be carried out remote monitoring, it is achieved intelligentized control method, and traditional air cooler control system is to complete
's.
After 2005, domestic occurring in that realizes automatically controlling of transformer cooling system with elements such as programmable controller PLC
The method of system, and achieve some New function, such as: according to the method for operation of certain periodic transformation cooling unit, make cold
But unit blower fan group takes turns to operate, balances use；Communicate with integrated automation of transformation stations monitoring system, it is achieved remotely supervise
Control.In terms of control program, expert is had to propose control thinking the most reasonable, that optimize, as pre-by oil temperature and rate of temperature change
Survey load, by temperature and combine rate of temperature change and contact transformer station's practical situation again and carry out automatically controlling switching cooling unit, root
Change comprehensive switching cooler package etc. according to transformer load and oil temperature, temperature of oil in transformer can be made to meet wanting of transformator operation
Ask, good energy-saving effect can be reached again.But in actual application, PLC realize function is fairly simple, interface operation not
Close friend, the ins and outs of PLC are unfamiliar with by field operator, and problem of investigating during fault is slow, even has no way of doing it, impact cooling
Investigation in time and the process of the device system failure.
Utility model content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, it is provided that one is capable of transformer oil
Temperature, the accurately control of load and the intelligence accurately differentiating, improving transformer cooler auto-control degree of Cooler Fault point
Can control system.
To achieve these goals, of the present utility model transformer cooler group Based Intelligent Control is realized based on two close cycles loop
System there is following composition:
A kind of system realizing transformer cooler group Based Intelligent Control based on two close cycles loop, it is characterised in that described
System includes that central management module, several motor control protection module and transformator data sampling module, described central management
Module is connected with transformer cooler, and described motor controls protection module and transformator data sampling module respectively with described
Central management module be connected.
It is preferred that described system also includes that prepared auto restart module, described prepared auto restart module are connected to central management module
And between two sections of power supplys.
More preferably, described prepared auto restart module includes power data AD sampling unit, and described power data AD sampling is single
Unit includes power supply analog quantity sampling subelement and on and off switch amount sampling subelement.
More preferably, described prepared auto restart module also includes trip control unit and nonvolatile memory cell.
It is preferred that described system also includes human-computer interaction module, described human-computer interaction module and central management module
Connect.
It is preferred that module when described system also includes pair, when described pair module respectively with described central management mould
Block, several motor control protection module and transformator data sampling module is connected.
It is preferred that described motor controls protection module includes cooler data AD sampling unit, described cooler number
Cooler analog quantity sampling subelement and cooler switching value sampling subelement is included according to AD sampling unit.
More preferably, described motor controls protection module and also includes trip control unit and nonvolatile memory cell.
More preferably, described cooler data AD sampling unit also includes self calibration subelement.
Have employed the system realizing transformer cooler group Based Intelligent Control based on two close cycles loop in this utility model, tool
Have the advantages that:
(1) oil temperature of transformator, load current and the running current of cooler unit can be monitored in real time, according to these data
With input and the excision that transformator temperature control strategy and the operation reserve of cooler, operation time are automatically adjusted forced air cooler unit；
(2) operation conditions of forced-oil-air cooling transformator and air-cooled unit can be monitored in real time, it is ensured that transformer air-cooled
Oil pump, the operation that holds water of fan electromotor, thus ensure that transformator runs within the scope of reasonable temperature, it is achieved transformer oil
Temperature, the accurately control of load and the accurate differentiation of Cooler Fault point；
(3) can control or dispatch to communicate, far with a distant place by Ethernet by multiple stage air cooler control system networking
Side controls or dispatches the operation conditions that can remotely monitor transformator, monitors the operating condition of any one group of cooler package, it is achieved
The input of long-range cooler package and excision.
Accompanying drawing explanation
Fig. 1 is the control principle drawing of temperature of oil in transformer closed loop control submodule of the present utility model.
Fig. 2 is the control principle drawing of cooler motor closed loop control submodule of the present utility model.
Fig. 3 is the system structure realizing transformer cooler group Based Intelligent Control based on two close cycles loop of the present utility model
Figure.
Fig. 4 is the system interface realizing transformer cooler group Based Intelligent Control based on two close cycles loop of the present utility model
Figure.
Detailed description of the invention
In order to more clearly describe technology contents of the present utility model, carry out into one below in conjunction with specific embodiment
The description of step.
Of the present utility model realize the system of transformer cooler group Based Intelligent Control based on two close cycles loop and include central canal
Reason module, several motor control protection module and transformator data sampling module, have double-closed-loop control loop, and one is transformator
Oil-temperature control loop (such as Fig. 1), has oil temperature supervisory circuit, the oil of systematic sampling transformator in centre management module in systems
After temperature, load current signal, as temperature of oil in transformer regulation feedback, when oil temperature exceedes oil temperature limits, central management mould
The operating of block each group of cooler of regulation, to regulate temperature of oil in transformer.AD during measuring cell is oil temperature supervisory circuit in system adopts
Sample circuit, actuator is cooler, and controlled device is temperature of oil in transformer；Two is that cooler motor controls loop (such as Fig. 2), cold
But device motor controls to be carried out mechanism in closed loop at first, controls in closed loop to be controlled device at second, systematic sampling institute
There are cooler fan electromotor, the electric current in Oil pump electrical machinery loop, as regulation and the feedback parameter of cooler motor control system, knot
Close motor moving model definite value, control cooler and run well.The measuring cell of cooler closed-loop control system is motor control
The AD sample circuit of protection module, actuator is the relay output loop that in system, motor controls protection module, controlled right
As if cooler.
Wherein, central management module can use high-performance arm processor, has abundant serial line interface, spi bus connects
Mouth and two Ethernet interfaces.The oil temperature of real-time sampling transformator, load current, in conjunction with the operation conditions of cooler, accumulative
The operation time, control protection module by universal serial bus and subordinate's motor and connect, carry out the allotment switching of overall situation cooler package, system
The operation of one management whole system, makes cooler package equilibrium operating；Each group of motor can be obtained and control the cooler of protection module
Working, operating current etc.；Being connected by independent serial ports and human-computer interaction module, operations staff can be by man-machine friendship
Module understands the operation conditions of transformer cooling system mutually, and local operation power supply, the throwing of cooler unit are moved back, real simultaneously by event
Barrier alarm prompt can help operation maintenance personnel rapidly removing faults；Connected by spi bus and prepared auto restart module, can obtain
Obtain the state of currently two sections of power supplys, voltage, current information, it is also possible to control the switching of two sections of power supplys.
Motor controls protection module can use high-performance microprocessor, has abundant AD sampling channel, serial line interface,
Can believe with high-speed sampling cooler fan electromotor, the three-phase current signal of Oil pump electrical machinery and cooler breaker contacts device position
Number, calculating current value, with protection definite value contrast, it is achieved overcurrent protection, rotation-clogging protection, fast tripping protection, open-phase protection etc., three-phase are not
The important electric motor protecting such as balanced protection, adds time delay when current value exceedes protection definite value, sends out tripping operation exit instruction；Motor controls
Protection module has a tripping operation and controls loop, performs tripping operation exit instruction, and trip(ping) circuit uses latch-in relay, at hardware
Dead electricity or continue to keep current discharge state with exit relay during central management module lost contact, it is ensured that the normal fortune of cooler
OK；Motor controls protection module and has serial communication interface, can be by cooler running status, action event etc. by serial ports
Give central management module and make systematic analysis.Motor controls protection module and also has a nonvolatile semiconductor memory member, Ke Yiji
Record preserves motor and breaks down all sampled signal numerical value in moment, in case the later stage makees emergency review, fault analysis and handling；System
Each motor control unit is separate, and any cell breaks down does not affects the properly functioning of other motor control units, it is ensured that
Each cooler reliably operates, and the reliability of system is guaranteed.
In preferably embodiment, system also include prepared auto restart module, pair time module and human-computer interaction module (as figure
3), wherein:
Prepared auto restart module can use high-performance arm processor, has abundant AD sampling channel, spi bus interface, string
Line interface.The voltage of two sections of incoming powers of high-speed sampling, current signal, busbar voltage and power circuit breaker catalyst position signalling
After, calculate effective value, sample voltage value is contrasted with prepared auto restart voltage definite value, in conjunction with current breaker contacts
Device position signalling carries out logical judgment, when voltage x current value meets prepared auto restart operation condition, sends out tripping operation exit instruction；Prepared auto restart
Module has a tripping operation and controls loop, performs tripping operation exit instruction, and trip(ping) circuit uses latch-in relay, in hardware dead electricity
Or continue to keep current discharge state with exit relay during central management module lost contact, it is ensured that cooler properly functioning；Standby
Haul oneself willingly into module and there is serial communication interface, can be by power supply running status, action event etc. by giving central management on serial ports
Module makees systematic analysis.Prepared auto restart module also has a nonvolatile semiconductor memory member, can record preservation power failure
All sampled signal numerical value in moment, in case the later stage make emergency review, fault analysis and handling.
System uses high-speed AD Sampling techniques, voltage, electric current, the position of the switch and the mother of real-time sampling I, II section incoming power
Line voltage signal, through high-performance processor high-speed computation, is analyzed processing, it is achieved stand-by power supply automatic switching function.System
The voltage x current information of two sections of power supplys, real-time status can be uploaded to master control room by network by system.When chiller system power supply
When breaking down, system can record the storage voltage of trouble point, electric current, as consequent malfunction analysis；AD front end have filtering,
Amplify, isolate circuit；AD sampling has self-calibrating capabilities, it is possible to be automatically adjusted the temperature drift that input signal is produced by ambient temperature
Move impact；There is switching value sampled signal and include power circuit breaker position, catalyst position.
Pair time module can use field programmable gate array (FPGA), there is IRIG-B code signal conversion electricity
Road, a serial line interface.After accessing IRIG-B code signal, through signaling conversion circuit, convert a signal into Transistor-Transistor Logic level, FPGA
Sampling Transistor-Transistor Logic level is decoded, and temporal information is exported on universal serial bus, the most also one pps pulse per second signal of output, is
Unite other unit carry out synchronize pair time, after whole system time synchronized, can carry out power failure record ripple, Cooler Fault record
Ripple, provides time reference for consequent malfunction analysis.
Human-computer interaction module can use 7 cun of industrial RGB multidigit color liquid crystal touch screens, has the picture of abundant image to show
The operation conditions of air cooling system, can check current transformer by touch screen local operation when of facilitating operations staff to need
State, each the group current state of cooler, history run state, alert record, curvilinear trend, and run the information such as form；
Operations staff the input of operating cooler group the most on the touchscreen can exit (such as Fig. 4)；Human-computer interaction module can also have
There are system state indicator, alarm indicator, facilitate operations staff to check.
This system can use " back of the body inserts formula structure, guide tracked installation " mode to concentrate on a hardware machine in example, in hardware
In case, being inserted on backboard by interface slot by unit board, backboard possesses multiple bus, is realized each by core bus
Information transmission between unit board and control, it is also possible to place regarding on-site actual situations distribution.System can also extend access
Motor controls protection module, can be extended by other network not limited in theory, accesses motor and controls protection module
Quantity do not limit.
The technical scheme of the system realizing transformer cooler group Based Intelligent Control based on two close cycles loop of the present utility model
In, each wherein included function device and modular device all can be corresponding to actual particular hardware circuit structures, therefore
These modules and unit merely with hardware circuit it is achieved that need not to assist with specific control software i.e. can from
Move and realize corresponding function.
Have employed the system realizing transformer cooler group Based Intelligent Control based on two close cycles loop in this utility model, energy
Monitor the oil temperature of transformator, load current and the running current of cooler unit in real time, according to these data and transformator temperature control
Strategy and the operation reserve of cooler, operation time are automatically adjusted input and the excision of forced air cooler unit；Can be to forced-oil-air cooling
The operation conditions of transformator and air-cooled unit monitors in real time, it is ensured that transformer air-cooled oil pump, the holding water of fan electromotor
Run, thus ensure that transformator runs within the scope of reasonable temperature, it is achieved temperature of oil in transformer, the accurately control of load and cooling
The accurate differentiation of device trouble point；Can by multiple stage air cooler control system networking, controlled with a distant place by Ethernet or dispatch into
Row communication, a distant place controls or dispatches the operation conditions that can remotely monitor transformator, monitoring the operation of any one group of cooler package
Operating mode, it is achieved the input of long-range cooler package and excision, to improving transformer equipment stable operation and reducing operation maintenance personnel work
Have great significance as amount, there is wide market prospect and good economic benefit.
In this description, this utility model is described with reference to its specific embodiment.But it is clear that it is the most permissible
Various modification can be adapted and conversion is without departing from spirit and scope of the present utility model.Therefore, specification and drawings is considered as
Illustrative and not restrictive.
Claims (9)
1. the system realizing transformer cooler group Based Intelligent Control based on two close cycles loop, it is characterised in that described is
System includes that central management module, several motor control protection module and transformator data sampling module, described central management mould
Block is connected with transformer cooler, and described motor controls protection module and transformator data sampling module respectively with described
Central management module is connected.
The system realizing transformer cooler group Based Intelligent Control based on two close cycles loop the most according to claim 1, it is special
Levying and be, described system also includes that prepared auto restart module, described prepared auto restart module are connected to central management module and two sections of electricity
Between source.
The system realizing transformer cooler group Based Intelligent Control based on two close cycles loop the most according to claim 2, it is special
Levying and be, described prepared auto restart module includes that power data AD sampling unit, described power data AD sampling unit include electricity
Source analog quantity sampling subelement and on and off switch amount sampling subelement.
The system realizing transformer cooler group Based Intelligent Control based on two close cycles loop the most according to claim 2, it is special
Levying and be, described prepared auto restart module also includes trip control unit and nonvolatile memory cell.
The system realizing transformer cooler group Based Intelligent Control based on two close cycles loop the most according to claim 1, it is special
Levying and be, described system also includes that human-computer interaction module, described human-computer interaction module and central management module connect.
The system realizing transformer cooler group Based Intelligent Control based on two close cycles loop the most according to claim 1, it is special
Levy and be, module when described system also includes pair, when described pair module respectively with described central management module, Shuo Ge electricity
Machine controls protection module and transformator data sampling module is connected.
The system realizing transformer cooler group Based Intelligent Control based on two close cycles loop the most according to claim 1, it is special
Levying and be, described motor controls protection module and includes cooler data AD sampling unit, described cooler data AD sampling
Unit includes cooler analog quantity sampling subelement and cooler switching value sampling subelement.
The system realizing transformer cooler group Based Intelligent Control based on two close cycles loop the most according to claim 7, it is special
Levying and be, described motor controls protection module and also includes trip control unit and nonvolatile memory cell.
The system realizing transformer cooler group Based Intelligent Control based on two close cycles loop the most according to claim 7, it is special
Levying and be, described cooler data AD sampling unit also includes self calibration subelement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410502.6U CN205691979U (en) | 2016-05-09 | 2016-05-09 | The system of transformer cooler group Based Intelligent Control is realized based on two close cycles loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410502.6U CN205691979U (en) | 2016-05-09 | 2016-05-09 | The system of transformer cooler group Based Intelligent Control is realized based on two close cycles loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205691979U true CN205691979U (en) | 2016-11-16 |
Family
ID=57264431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620410502.6U Active CN205691979U (en) | 2016-05-09 | 2016-05-09 | The system of transformer cooler group Based Intelligent Control is realized based on two close cycles loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205691979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450458A (en) * | 2017-07-28 | 2017-12-08 | 陕西金源自动化科技有限公司 | A kind of energy saving transformer cooler switch board and its control method |
-
2016
- 2016-05-09 CN CN201620410502.6U patent/CN205691979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450458A (en) * | 2017-07-28 | 2017-12-08 | 陕西金源自动化科技有限公司 | A kind of energy saving transformer cooler switch board and its control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105785880A (en) | System for achieving intelligent control of transformer cooler group based on double closed loops | |
| CN102957208B (en) | Intelligent monitoring device of power distribution transformer and control method thereof | |
| CN104330275B (en) | A kind of accident analysis of converter valve cooling system and diagnostic device and its implementation | |
| CN104779882A (en) | Logic protection circuit and motor controller | |
| CN104192026B (en) | Based on electrification railway contact net electric isolating switch and the method for supervising of power supply switching type | |
| CN101752897A (en) | Automatic comprehensive spare switch device based on automatic dispatching platform | |
| CN201570909U (en) | Building special-purpose bus intelligence control system | |
| CN104578430B (en) | For the on-line monitoring device of circuit breaker operation mechanism | |
| CN104991628A (en) | Intelligent power monitoring system for data center and monitoring method | |
| CN205691979U (en) | The system of transformer cooler group Based Intelligent Control is realized based on two close cycles loop | |
| CN202363966U (en) | Automatic switching device for emergency power supply | |
| CN205620746U (en) | Accurate intelligent control device of transformer cooler based on AD sampling | |
| CN204681314U (en) | A kind of photovoltaic case becomes intelligent monitoring and controlling device | |
| CN104092291A (en) | Intelligent-distribution-network controller and control method thereof | |
| CN103631180B (en) | Isolating switch intelligent controller | |
| CN203086246U (en) | CAN bus-based ring main unit control system and power grid monitoring system | |
| CN203445507U (en) | Brush generator set integrated intelligent control screen | |
| CN202712967U (en) | BC oil wind cooler fault detection apparatus | |
| CN202931028U (en) | Intelligent monitoring device of distribution transformer | |
| CN102088185A (en) | Bus differential protection method | |
| CN204290503U (en) | Integral intelligent AC power case | |
| CN210246303U (en) | Control system for predicting fault of electrical equipment | |
| CN204361781U (en) | There is the protection switch of automatic reclosing function | |
| CN203261125U (en) | Self-powered digital relay | |
| CN111459013A (en) | Switching system of submarine cable oil pump station equipment signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |