CN205880566U - High voltage isolator intelligence control system of transformer substation - Google Patents
High voltage isolator intelligence control system of transformer substation Download PDFInfo
- Publication number
- CN205880566U CN205880566U CN201620592952.1U CN201620592952U CN205880566U CN 205880566 U CN205880566 U CN 205880566U CN 201620592952 U CN201620592952 U CN 201620592952U CN 205880566 U CN205880566 U CN 205880566U
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- arm microprocessor
- module
- control system
- motor
- arm
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Abstract
The utility model provides a high voltage isolator intelligence control system of transformer substation, includes ARM microprocessor, and ARM microprocessor's output and on -off control module are connected, and the on -off control module is connected with the motor, and opening of control motor stops, the on -off control module includes relay and relay controller, and ARM microprocessor connects gradually relay controller, relay, motor, be equipped with angle sensor and current sensor on the motor, angle sensor passes through converter and is connected with ARM microprocessor's input, and current sensor passes through AD conversion module and is connected with ARM microprocessor's input. The utility model discloses utilizing high -performance ARM microprocessor as control core, using power electronic devices such as solid state relay and optoelectronic coupler, various sensor group such as cooperation temperature and humidity sensor, angle sensor become an on -off control module, during systematically the high -voltage switch control core 0 cabinet is arrived in the integration, control control core 1's operation.
Description
Technical field
This utility model relates to electronic technology field, particularly a kind of high-voltage isolating switches in transformer substation intelligence control system.
Background technology
High-tension switch cabinet is to join complete for a kind of high pressure assembled about first and second equipment by certain Decision Making of Line Schemes
Electric installation.In power plant and transformer and distribution station, it is used for controlling and protect electromotor, transformator and high-tension line it can also be used to start
With protection Large-scale High-Pressure ac motor.The high voltage isolator installed in high-tension switch cabinet is as maximum once the setting of usage amount
Standby, its Main Function is the isolation voltage when equipment or line maintenance, to ensure safety.It can not disconnect load current and short
Road electric current, should with chopper with the use of.Disconnecting switch after first should drawing chopper when having a power failure, should first close disconnecting switch during power transmission
Rear conjunction chopper.If maloperation will cause device damage and personal injury.Disconnecting switch is as one of transmission system simultaneously
Critical elements, because it does not has arc-chutes, so cannot be used for cut-offfing load current, can only play the effect of obvious deenergization.
It is mainly used to isolate high voltage power supply.Ensure safety inspection, and can the certain small area analysis of break-make.The transmission of high voltage isolator
Under the most exposed environment out of doors of system, subject wind, the impact of the various weather conditions such as lid, Exposure to Sunlight that drench with rain, avenge, easily throughout the year
Produce drive system mechanical faults and the accident that causes power failure constantly occurs.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of high-voltage isolating switches in transformer substation intelligence control system,
Utilize high performance ARM microprocessor as control core, use the power electronic devices such as solid-state relay and photoelectrical coupler,
Coordinate a kind of switch control module of the various sensor such as Temperature Humidity Sensor, angular transducer composition, be systematically integrated into high pressure
In switch Intelligent component cabinet, the operation to high voltage isolator is controlled, the most integrated state acquisition, fault detect, letter
The functions such as message communication, make disconnecting switch have Autonomous test, self diagnosis, certainly control and the intelligent functions of data transmission.Full mistake
Cheng Zidong is carried out, and coefficient of automation is high, and has specific aim, safe and reliable, easy for installation.
For solving above-mentioned technical problem, this utility model be the technical scheme is that a kind of transformer station high_voltage isolation is opened
Closing intelligence control system, including ARM microprocessor, the outfan of ARM microprocessor is connected with switch control module, on-off control
Module is connected with motor, controls the start and stop of motor, and described switch control module includes relay and relay driver,
ARM microprocessor is sequentially connected with relay driver, relay, motor；Described motor is provided with angular transducer and electricity
Flow sensor, angular transducer is connected with the input of ARM microprocessor by digitalizer, and current sensor passes through A/D
Modular converter is connected with the input of ARM microprocessor；Described ARM microprocessor is also logical to be connected with disconnecting switch, the micro-process of ARM
Device is connected with On-off signal output module also by photoelectric isolation module；ARM microprocessor is also connected with light-emitting diode display.
Preferably, also including Temperature Humidity Sensor, it is indoor that Temperature Humidity Sensor is located at transformer station, and Temperature Humidity Sensor passes through
A/D modular converter is connected with ARM microprocessor.
Preferably, also include that numeral method module, numeral method module are that processor is connected with ARM, be used for showing
The information that angular transducer and Temperature Humidity Sensor detect.
Preferably, also including power module, power module is connected with ARM microprocessor, powers for each device.
Preferably, also including key-press module, key-press module is connected with ARM microprocessor, carries out input and arranges.
Preferably, also including alarm module, alarm module is connected with ARM microprocessor, and described alarm module includes sound
Alarm.
Preferably, described ARM microprocessor is connected with host computer also by communication interface.
Preferably, described communication interface uses RS232 communication interface.
Using said structure, this utility model utilizes high performance ARM microprocessor as control core, uses solid-state to continue
The power electronic devices such as electrical equipment and photoelectrical coupler, coordinates the various sensor such as Temperature Humidity Sensor, angular transducer composition one
Planting switch control module, be systematically integrated in high-voltage switch gear Intelligent component cabinet, the operation to high voltage isolator is controlled,
The functions such as the most integrated state acquisition, fault detect, information communication, make disconnecting switch have Autonomous test, self diagnosis, certainly control
And the intelligent functions of data transmission.Overall process is carried out automatically, and coefficient of automation is high, and has specific aim, safe and reliable,
Easy for installation.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is this utility model electromotor control circuit figure；
Fig. 3 is this utility model relay drive circuit figure；
Fig. 4 is the circuit theory diagrams of this utility model Temperature Humidity Sensor；
Fig. 5 is the circuit theory diagrams of this utility model angular transducer；
Fig. 6 is the circuit theory diagrams of this utility model current sensor；
Fig. 7 is the circuit theory diagrams of this utility model communication module；
Fig. 8 is the circuit theory diagrams of this utility model LED display module；
Fig. 9 is the circuit theory diagrams of this utility model alarm module.
Detailed description of the invention
As it is shown in figure 1, a kind of high-voltage isolating switches in transformer substation intelligence control system, including ARM microprocessor, the micro-place of ARM
The outfan of reason device is connected with switch control module, and switch control module is connected with motor, controls the start and stop of motor, described
Switch control module includes relay and relay driver, ARM microprocessor be sequentially connected with relay driver, relay,
Motor；Described motor is provided with angular transducer and current sensor, and angular transducer is micro-with ARM by digitalizer
The input of processor connects, and current sensor is connected with the input of ARM microprocessor by A/D modular converter；Described ARM
Microprocessor is also connected with disconnecting switch, and ARM microprocessor is also by photoelectric isolation module with On-off signal output module even
Connect；ARM microprocessor is also connected with light-emitting diode display.
Preferably, also including Temperature Humidity Sensor, it is indoor that Temperature Humidity Sensor is located at transformer station, and Temperature Humidity Sensor passes through
A/D modular converter is connected with ARM microprocessor.
Preferably, also include that numeral method module, numeral method module are that processor is connected with ARM, be used for showing
The information that angular transducer and Temperature Humidity Sensor detect.
Preferably, also including power module, power module is connected with ARM microprocessor, powers for each device.
Preferably, also including key-press module, key-press module is connected with ARM microprocessor, carries out input and arranges.
Preferably, also including alarm module, alarm module is connected with ARM microprocessor, and described alarm module includes sound
Alarm.
Preferably, described ARM microprocessor is connected with host computer also by communication interface.
Preferably, described communication interface uses RS232 communication interface.
Preferably, shown ARM microprocessor uses model to be the single-chip microcomputer of STM32F103；Described photoelectric isolation module is adopted
Use photoisolator；Described LED indicating module uses LED LCDs；Described angle detection module uses AD2S90 to rotate
Transformer；Described current detection module uses sensor model number to be ACS712-20A sensor；Described Temperature and Humidity
Module uses sensor model number to be DHT11 sensor.
As in figure 2 it is shown, be this utility model this utility model circuit for controlling motor figure, use solid-state relay and commonly continue
Electrical equipment with the use of.When needs motor main story drives disconnecting switch Guan Bi, and arm processor controls electromagnetic relay RLY1, RLY2
Powering on RLY3, then control SSR powers on and makes circuit ON, motor start working；Angular transducer Real-time Collection isolation simultaneously
The angle information of switch uploads to the angle of microprocessor display switch, determines the position of switch.After switch puts in place, ARM
Processor controls SSR and first opens, down circuitry, and then relay R LY1, RLY2, RLY3 turn off, stopping in motor transmission mechanism
Mechanism of car brake makes motor stop operating rapidly.When driving disconnecting switch to open with needing motor reversal, arm processor is first
Then control SSR power-off makes circuit turn off, and then controls electromagnetic relay RLY1, RLY2 and RLY3 power-off, and motor quits work.
The switching sequence of solid-state relay and ordinary electromagnetic relay can not overturn, and solid-state relay will not produce at load circuit breaker in middle
Light a fire flower, draw the phenomenons such as Vulpes.SSR and electromagnetic relay are used in series, and prevent single SSR or electromagnetic relay operating alone
Time there is unexpected malfunction because of strong electromagnetic etc..SSR solid-state relay
Being the power electronics type non-contact type switching device that is made up of solid state electrical components of a kind of inside, it is internally integrated
The element such as switch triode, bidirectional triode thyristor, carries out the purpose of on-off with can reaching contactless no-spark to circuit.
It is made up of photoelectric coupling circuit, zero-cross triggering circuit, control circuit, on-off circuit and absorption filter circuit inside AC type SSR.
As it is shown on figure 3, owing to ARM microcontroller can not directly drive relay, need with photoelectric device, it to be driven.?
In circuit for controlling motor, relay needs two pins of online Bao Duan reversely and to connect diode in use, is used for protecting driving
Dynamic audion.Loop construction within relay may produce bigger inverse electromotive force when energising, power-off and puncture three poles
Pipe, the parallel connection of backward diode, for absorbing the spark that relay coil produces, makes the driving audion of relay not be burned,
Reach purpose that energy the releases driving pipe with protective relay.In the present invention, the running voltage of relay is 24V, relatively
Being high voltage for the 3.3V of microprocessor, so using photoelectric isolation technology to carry out the isolation of strong and weak electricity, protecting controller
Signal transmission the most disturbed.
As shown in Figure 4, Temperature Humidity Sensor uses DHT11 digital hygro sensor, and it is a containing calibrating number
The humiture compound sensor of word signal output, the DATA mouth of sensor connects with main control chip STM32F103 after a resistance
Connecing, it is achieved communication therebetween and synchronization, transmission uses single bus data form, communication time an about 4ms, user
After MCU sends a commencing signal, DHT11 is transformed into fast mode from low-power consumption mode, after waiting that main frame commencing signal terminates,
DHT11 sends response signal, sends the data of 40bit, and triggers a signals collecting, and user may select reading part divided data.
From pattern, DHT11 receives commencing signal and triggers a humiture collection, starts letter without receiving main frame transmission
Number, DHT11 will not actively carry out humiture collection.It is transformed into low-speed mode after gathering data.
As it is shown in figure 5, be the circuit theory diagrams of this utility model angular transducer, angular transducer uses and rotates transformation
Device, selects special rotary transformer digitalizer AD2S90, has that shock resistance is good, corrosion-resistant, operating temperature range is wide
Feature, is suitable for rugged environment, has preferable reliability in the application.Rotary transformer is used in angular surveying circuit
It is installed on motor, angle change is converted into voltage signal, inputs to special rotary transformer digitalizer
AD2S90, is transformed into digital quantity by voltage signal and passes to primary processor.The field winding of rotary transformer and two set outputs are mutually
Orthogonal winding is fixed as stator, and rotor is co-axially mounted with drive mechanism rotary shaft, when the field winding on former limit is by sine
During electric current, secondary output winding two ends can induce the electromotive force of same frequency, and the relative angle between the size of electromotive force and rotor has
Close, after the voltage signal digital quantity that will produce, send into microprocessor.In use simulation input sin, cos and REF end uses solely
Vertical shielded twisted pair, shielding end is connected to the AGND pin of changer.VDD and VSS end is connected to the voltage of AGND, rotates
S3 and S2 of transformator is respectively connecting to sin and the cos pin of changer, and AGND is analogue signal ground, uses Y-connection electricity
Road, REF end output signal reaches DGND by the resistance of the electric capacity of 0.1Uf, 100K, after processing of circuit, by the voltage of 2V
Signal sends conversion chip to.
As shown in Figure 6, excessive current flow in motor typically operating current far beyond rated current so that motor winding blows,
When bigger fluctuation occurs in running voltage, or motor heavy overload even stall can cause flow problem.The present invention is by setting
Meter current sensor circuit, gives microcontroller after treatment the voltage signal of current sensor output, allows controller
The break-make of control circuit, reaches effectively to cut off the purpose of circuit protection motor when crossing stream.The operation principle of current sensor:
Can produce induced field when being energized through the wire of current sensor around wire, the magnetic field of generation is by current sensor
Hall element sensing and then one faradic current of generation, and have voltage signal to export.When current in wire changes, electric current passes
Sensor has voltage signal to export again, by output voltage by just showing the big of electric current on tested wire after certain process
Little.Using linear current sensing IC ACS712-20A, this device is built-in with the linear hall sensor circuit of accurate low biasing,
Can export and the voltage of the AC or DC current in proportion detected.Owing to the output voltage of ACS712-20A becomes with primary current
Linear relationship, actually detected circuital current scope about changes at 0 ~ 4A, and the output voltage of this sensor changes at 2.5 ~ 2.9V, Δ
V=0.4V, and single-chip microcomputer requires that detection input voltage is 0 ~ 5V.Put to this end, one-level Differential Input scale operation need to be added at sensor
Big device, moves and signal amplifies, by resistance R3, R4, R5, R6 and amplifier OP1177 group in operational amplification circuit figure realizing current potential
Become.Taking V1=V2=2.5V, amplification is 12.5, can meet application requirement.
As it is shown in fig. 7, use RS232 communication, it is mainly used in the debugging of hardware system communication function and hardware circuit with general
Use during the transmission of computer simple data, facilitate detail programming and the maintenance of hardware system.
As shown in Figure 8, liquid crystal display module uses 8 position digital signal parallel transmission patterns, BLA and BLK end is the most defeated
Enter LCD backlight and light positive pole and the negative pole of module.In most cases cannot realize closely in view of field personnel
Observation data, should be ensured that under normality that the system of realization is without being automatically switched off the function of LCDs after operating ten minutes.This function
Realize by being controlled the height change of BLA end level by single-chip microcomputer I/O pin.
As it is shown in figure 9, be this utility model alarm module circuitry schematic diagram, break down in system detects transformer station
Time, system can send audible alarm automatically, reminds staff to carry out generation of overhauling and prevent accident.This module core is
WT588D speech chip, uses three line SPI mode, is connected by three order wires, is sheet respectively between single-chip microcomputer with WT588D
Selecting signal CS, data signal MISO and clock signal SCLK, sequential follows standard SPI communication mode.Information is sent by single-chip microcomputer
WT588D is controlled, it is achieved speech chip order control, speech play.P17 is BUSY busy signal outfan, and its signal can
To be configured.Arranging BUSY output low level when voice commences play out in this module, speech play terminates the high electricity of BUSY output
Whether flat, during high level, voltage is close to VDD supply voltage, for terminating as speech play or busy signal judgement.Supply voltage
VDD uses+5V to power, and VCC uses 3.3V to power.Audio signal is exported by DAC end.Use M25P32VMW6TG storage specific
Voice signal, it is the serial flash memory of 32Mbit (4M*8), has enhancing write protection structure.Access uses spi bus
Agreement.
During use when disconnecting switch is operated by the order that ARM receives host computer, drive when needs motor rotates forward
During disconnecting switch Guan Bi, arm processor controls electromagnetic relay and powers on, and then control SSR powers on and makes circuit ON, motor start
Work；Simultaneously by rotary transformer to position of the switch information, after digital conversion, digital information is sent to
Arm processor, and the angle of real-time display switch is to determine the position of the switch and state.After switch puts in place, arm processor
Controlling SSR first to open, down circuitry, then relay turns off, and the braking mechanism in motor transmission mechanism makes motor stop rapidly
Rotate.When needs motor reversal drives disconnecting switch to open, ARN processor makes circuit turn off after first controlling SSR power-off, then
Controlling electromagnetic relay power-off, motor quits work.In the running of motor, wait indefinitely if being because disconnecting switch generation card
Make the fortuitous event of motor stall, current transformer detecting that in circuit, jump signal passes to arm processor, make SSR and
Relay disconnects, and uploads to disconnecting switch IED and send fault warning.The humiture feelings of the environment of Temperature Humidity Sensor detection simultaneously
Condition, if humiture exceedes the threshold value of normal operation, temperature-humidity signal sends ARM to, takes the emergency measures such as drying, heating,
And the information that gives a warning.
The above embodiments are only optimal technical scheme of the present utility model, and are not construed as limit of the present utility model
System, the technical scheme that protection domain of the present utility model should be recorded with claim, the technical scheme recorded including claim
The equivalents of middle technical characteristic is protection domain.Equivalent the most in this range is improved, also at this utility model
Protection domain within.
Claims (8)
1. a high-voltage isolating switches in transformer substation intelligence control system, it is characterised in that: include ARM microprocessor, the micro-process of ARM
The outfan of device is connected with switch control module, and switch control module is connected with motor, control motor start and stop, described in open
Closing control module and include relay and relay drive circuit, ARM microprocessor is sequentially connected with relay drive circuit, relay
Device, motor；Described motor is provided with angular transducer and current sensor, angular transducer by digitalizer with
The input of ARM microprocessor connects, and current sensor is connected with the input of ARM microprocessor by A/D modular converter；Institute
Stating ARM microprocessor to be also connected with disconnecting switch, ARM microprocessor exports mould also by photoelectric isolation module with On-off signal
Block connects；ARM microprocessor is also connected with light-emitting diode display.
A kind of high-voltage isolating switches in transformer substation intelligence control system, it is characterised in that: also include temperature
Humidity sensor, it is indoor that Temperature Humidity Sensor is located at transformer station, and Temperature Humidity Sensor is by A/D modular converter and the micro-process of ARM
Device connects.
A kind of high-voltage isolating switches in transformer substation intelligence control system, it is characterised in that: also include number
Code pipe display module, numeral method module is that processor is connected, for angles of display sensor and Temperature Humidity Sensor with ARM
The information detected.
A kind of high-voltage isolating switches in transformer substation intelligence control system, it is characterised in that: also include electricity
Source module, power module is connected with ARM microprocessor, powers for each device.
A kind of high-voltage isolating switches in transformer substation intelligence control system, it is characterised in that: also include by
Key module, key-press module is connected with ARM microprocessor, carries out input and arranges.
A kind of high-voltage isolating switches in transformer substation intelligence control system, it is characterised in that: also include report
Alert module, alarm module is connected with ARM microprocessor, and described alarm module includes voice guard.
A kind of high-voltage isolating switches in transformer substation intelligence control system, it is characterised in that: described ARM
Microprocessor is connected with host computer also by communication interface.
A kind of high-voltage isolating switches in transformer substation intelligence control system, it is characterised in that: described communication
Interface uses RS232 communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620592952.1U CN205880566U (en) | 2016-06-17 | 2016-06-17 | High voltage isolator intelligence control system of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620592952.1U CN205880566U (en) | 2016-06-17 | 2016-06-17 | High voltage isolator intelligence control system of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205880566U true CN205880566U (en) | 2017-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620592952.1U Expired - Fee Related CN205880566U (en) | 2016-06-17 | 2016-06-17 | High voltage isolator intelligence control system of transformer substation |
Country Status (1)
| Country | Link |
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| CN (1) | CN205880566U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143022A (en) * | 2018-04-24 | 2019-01-04 | 赛凯诺技术（深圳）有限公司 | Singlechip chip is protected to be fallen to insert the method and circuit that cause damage |
| CN109216058A (en) * | 2018-11-13 | 2019-01-15 | 国网重庆市电力公司璧山供电分公司 | A kind of switchgear disconnecting switch motor-operating mechanism |
| CN110631430A (en) * | 2019-08-26 | 2019-12-31 | 上海机电工程研究所 | Missile safety ignition control device and control method |
| CN112350439A (en) * | 2020-10-30 | 2021-02-09 | 国网宁夏电力有限公司检修公司 | Intelligent isolating switch control device |
-
2016
- 2016-06-17 CN CN201620592952.1U patent/CN205880566U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143022A (en) * | 2018-04-24 | 2019-01-04 | 赛凯诺技术（深圳）有限公司 | Singlechip chip is protected to be fallen to insert the method and circuit that cause damage |
| CN109216058A (en) * | 2018-11-13 | 2019-01-15 | 国网重庆市电力公司璧山供电分公司 | A kind of switchgear disconnecting switch motor-operating mechanism |
| CN109216058B (en) * | 2018-11-13 | 2023-08-01 | 国网重庆市电力公司璧山供电分公司 | Electric operating mechanism of isolating switch of switch cabinet |
| CN110631430A (en) * | 2019-08-26 | 2019-12-31 | 上海机电工程研究所 | Missile safety ignition control device and control method |
| CN112350439A (en) * | 2020-10-30 | 2021-02-09 | 国网宁夏电力有限公司检修公司 | Intelligent isolating switch control device |
| CN112350439B (en) * | 2020-10-30 | 2023-10-20 | 国网宁夏电力有限公司检修公司 | Intelligent isolating switch control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170111 Termination date: 20170617 |