CN108132634A - A kind of ring main unit load switch Intelligent control device and control method - Google Patents
A kind of ring main unit load switch Intelligent control device and control method Download PDFInfo
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- CN108132634A CN108132634A CN201810151088.5A CN201810151088A CN108132634A CN 108132634 A CN108132634 A CN 108132634A CN 201810151088 A CN201810151088 A CN 201810151088A CN 108132634 A CN108132634 A CN 108132634A
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
Abstract
The technical issues of a kind of ring main unit load switch Intelligent control device and control method, the ring main unit safety that can solve present situation is not high, and equipment management cost is big.Including microcontroller, key switch, LED state indicator light, power module, photoelectric isolation module, intake channel, the amount of outputing channel, the key switch, LED state indicator light, power module and photoelectric isolation module are connect respectively with microcontroller, the intake channel is communicated to connect with the amount of outputing channel with photoelectric isolation module respectively, the power module is also connect with photoelectric isolation module, debugging interface is further included, the debugging interface is connect with microcontroller.The ring main unit load switch Intelligent control device of the present invention is intelligent actuating control mechanism, carries out technology upgrading transformation to conventional equipment, is integrated with the embedded intelligence control unit of industrial automation technology, the electric property of looped network cabinet equipment is made to get a promotion.
Description
Technical field
The present invention relates to on-load switch Intelligent control fields, and in particular to a kind of ring main unit load switch Intelligent control device
And control method.
Background technology
At present, with the rapid development of power grid, in intelligent grid construction, it is desirable that all kinds of switchgears are that have long-range behaviour
Make the automation complete set of equipments of function.The ring main unit of early stage is designed without remote operation function, and based on manual operation, safety is not
Height, equipment management cost is big, and reacting treatment time is long.So for present situation, develop a kind of looped network cabinet intelligent control device and meet
Power network development demand.
Invention content
A kind of ring main unit load switch Intelligent control device proposed by the present invention and control method can solve the looped network of present situation
The technical issues of cabinet safety is not high, and equipment management cost is big.
To achieve the above object, present invention employs following technical schemes：
A kind of ring main unit load switch Intelligent control device, including microcontroller, key switch, LED state indicator light, electricity
Source module, photoelectric isolation module, intake channel, the amount of outputing channel, the key switch, LED state indicator light, power module
And photoelectric isolation module is connect respectively with microcontroller, the intake channel and the amount of outputing channel respectively with photoelectric isolation module
Communication connection, the power module are also connect with photoelectric isolation module, and the power module is in parallel from outside access 220V exchanges
One varistor access AC/DC modular converter FAD6-0524-WFCI chip is converted into two-way DC voltage, is converted to all the way
24V direct currents, as photoelectrical coupler and relay driving source, another way is converted to 5V direct currents, is passing through DC/DC modular converters
AMS1117 is converted to 3.3V outputs, powers to processor.
Further, the microcontroller uses STM32F103C8T6 as core processor.
Further, the intake channel uses 5 channel intakes, and intake channel is by bottom plate J5 terminals access letter
Number, connecting substrate J3 terminals, by U4, U5, U8, U9, U10 photoelectric coupler isolation, input processor.
Further, the amount of outputing of the amount of the outputing channel has combined floodgate output, separating brake output, distant signal output, hand point
Signal exports several output channels, and the amount of outputing exports control signal from processor, by U11, U12, U13, U14 photoelectrical coupler
Isolation access substrate J2 terminals, connecting bottom board J1 terminals export control signal by relay.
A kind of control method of ring main unit load switch Intelligent control device, after system initializes platform, in real time
The input signal of inquiry button, intake channel realizes analyzing logic control analysis, and separating brake is handled in interrupt service subroutine
Output, output of closing a floodgate；
Include the following steps：
1.1) system platform initializes；System clock, I/O, house dog, timer interruption module is configured in system；
Initialization logic control output, LED；Enabled timer, house dog；
2.1) house dog is reset；After the completion of system initialization, into cycle, often recycle 12000 times and carry out once feeding dog, clearly
Zero house dog；
3.2) keyboard is scanned；After system is scanned monitoring to separating brake, combined floodgate, control point, control combination switch, to effective button
Operation carries out corresponding set；
4.1) logic master control；If logic master control divides position, control to close position, ground connection position, low pressure position by pairing point position, control
After the state of dry intake is judged with switching flag bits, the set amount of outputing flag bit；
5.2) LED logic controls are performed；LED is lighted or closed to system according to separating brake, combined floodgate, several input signals of ground connection
Indicator light.
Further, the step 4.1) includes：
4.11) it determines to close to divide position state；After program enters logic master control, divide position input letter according to intake conjunction first
Number, judge that looped network cabinet intelligent control device is currently located in and close position still point position, the corresponding flag bit of juxtaposition；
4.12) state of a distant place/on the spot is determined；Judgement is presently at remote location still with regard to position, and set is corresponding
Flag bit；Judge whether low pressure position is closed, be grounded and whether disconnect；Only meet low pressure position simultaneously and be closed and be grounded position disconnection
Under conditions of, separating brake, combined floodgate and switching on and off could be carried out and stop control output operation, if conditions are not met, removing separating brake, closing
Terminate behind the correlating markings position of lock operation；
4.13) separating brake logic control is performed；Whether current state is judged in position is closed, if so, it is a distant place, just to judge
Ground；Corresponding separating brake order is being detected, if received, separating brake output；
4.14) combined floodgate logic control is performed；Whether current state is judged in point position, if so, judging in a distant place also
It is state on the spot, is detecting whether order of accordingly closing a floodgate, detects combined floodgate order, output of closing a floodgate；
4.15) it performs switching on and off and stops control；Detect switching on and off opening flag position whether set, put if detected
Position, then detect point position of corresponding separating brake action flag bit whether in place, the conjunction position of corresponding feed motion flag bit whether in place, such as
Fruit in place, stops corresponding control output.
Further, interrupt service subroutine 5.2 is further included), specifically include following steps：
5.21) house dog after entering the interrupt, is reset；
5.22) judge whether combined floodgate flag bit is set to very, if combined floodgate flag bit is true, judge combined floodgate output time,
Otherwise combined floodgate shutoff operation is not entered；
5.23) judge combined floodgate output time whether beyond 1s；If combined floodgate output time exceeds 1s, output of closing a floodgate is closed；
5.24) close a floodgate output and flag bit are closed；
5.25) judge whether separating brake flag bit is set to very, if separating brake flag bit is true, judge separating brake output time,
Otherwise separating brake shutoff operation is not entered；
5.28) judge separating brake output time whether beyond 1s；If separating brake output time exceeds 1s, separating brake output is closed；
5.27) separating brake output and flag bit are closed；
5.28) clear interrupt flag bit；
5.29) interruption is exited.
As shown from the above technical solution, ring main unit load switch Intelligent control device of the invention is intelligent actuating control machine
Structure carries out technology upgrading transformation to conventional equipment, is integrated with the embedded intelligence control unit of industrial automation technology, makes looped network
The electric property of cabinet equipment gets a promotion.Looped network cabinet intelligent control device on-load switch realizes that function has control separating brake, closes a floodgate and grasp
Make, and have divide-shut brake instruction, earthing switch position instruction.
For the intelligent operation apparatus of the present invention compared with Traditional control ring main unit separating brake, combined floodgate equipment, which uses performance
Excellent microcontroller, increases intelligent functions, and a distant place/local operation can be selected to carry out separating brake, close a floodgate, and have divide-shut brake
State instruction, earthing switch position judgment, low pressure condition adjudgement.It is equal in the signal I/O channel and power supply of system
Using Anti-Jamming Technique, system rejection to disturbance ability is improved.In addition, using technical grade electronic component, increase protection circuit, having can
The features such as by property height, long lifespan, strong antijamming capability, and the shape of equipment is smaller, easy to operate.
Description of the drawings
Fig. 1 is the circuit block diagram of the present invention；
Fig. 2 is the circuit diagram of the microcontroller of the present invention；
Fig. 3 is the circuit diagram of the power module of the present invention；
Fig. 4 is the circuit diagram of the key switch of the present invention；
Fig. 5 is the circuit diagram of the LED state indicator light of the present invention；
Fig. 6 is the circuit diagram of the photoelectric isolation module of the present invention；
Fig. 7 is the circuit diagram of the intake channel of the present invention；
Fig. 8 is the circuit diagram of the amount of the outputing channel of the present invention；
Fig. 9 is the circuit diagram of the debugging interface of the present invention；
Figure 10 is the main program flow chart of the present invention；
Figure 11 is the logic master control program flow diagram of the present invention；
Figure 12 is the timer interrupt service program flow diagram of the present invention.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 1-Fig. 9, the ring main unit load switch Intelligent control device described in the present embodiment, including microcontroller,
Photoelectric isolation module, power module, intake channel, the amount of outputing channel, key switch, LED state indicator light, debugging interface are several
Part forms, and looped network cabinet intelligent control device on-load switch realizes that function has control ring main unit separating brake, closes a floodgate, and have divide-shut brake to refer to
Show, earthing switch position instruction and detection low pressure state.
The present embodiment system power supply is supplied to microcontroller and photoelectric isolating device after the AC220V conversions of outside access
Power supply；Microcontroller carries out software debugging or download using mode interface；Microcontroller is according to reception intake channel and button
Input signal makes respective logic processing, exports and controls by the amount of outputing channel.
Wherein：
Processor
Microcontroller STM32F103C8T6 is provided as the system core processor using internal 8M clocks for system
Clock.Microcontroller inputs the order received or detected equipment state according to key-press input, intake channel, by place
Reason answers logic control signal, and export operation instruction signal with LED module from the amount of outputing channel the output phase.
The microcontroller mainly receives separating brake order by separating brake button SW1, and life of closing a floodgate is received by combined floodgate button SW2
Enable, conjunctions of processor detection PB10 intakes channels input divides the input signal of position and toggle switch S2, by detect open into
The low pressure input channel signal of amount and ground connection input channel signal, judge whether to perform separating brake or closing operation；If system
Current state is detected in a point position, and receives separating brake order, performs sub-switching operation；If the system detects that current state exists
Position is closed, and has reception to close a floodgate and orders, performs closing operation.
Intake channel
System use 5 channel intakes, intake channel by bottom plate J5 terminals access signal, connecting substrate J3 terminals,
By U4, U5, U8, U9, U10 photoelectric coupler isolation, input processor.
The amount of outputing channel
The amount of outputing has the output channels such as combined floodgate output, separating brake output, distant signal output, the output of hand sub-signal, the amount of outputing
Control signal is exported from processor, substrate J2 terminals, connecting bottom board are accessed by U11, U12, U13, U14 photoelectric coupler isolation
J1 terminals export control signal by relay.
Power module
Power module accesses AC/DC modular converters FAD6- from outside access 220V exchanges, a varistor in parallel
0524-WFCI chips are converted into two-way DC voltage, 24V direct currents are converted to all the way, as photoelectrical coupler and relay driving
Source, another way are converted to 5V direct currents, are being converted to 3.3V outputs by DC/DC modular converters AMS1117, are powering to processor,
And as LED, button, photoelectrical coupler every driving source.
Signal connects correspondence between the IC chip of the present embodiment and other devices：
(1) microcontroller STM32F103C8T6 chip pins connect STM32F103C8T6 chips totally 48 pin, they
External connection is as follows：
Power supply is connect with GND pin：
9th pin VCC --- VCC；
24th pin VCC --- VCC；
36th pin VCC --- VCC；
48th pin VCC --- VCC；
8th pin GND --- GND；
23rd pin GND --- GND；
35th pin GND --- GND；
48th pin GND --- GND.
Runing signal indicator lamp pin connects：
3rd pin PC14 --- R10 resistance series connection D4 device LED light.
Crystal oscillating circuit pin connects：
The pin 1 of 5th pin PD0-OSCIN --- crystal oscillator Y1；
The pin 3 of 6th pin PD1-OSCOUT --- crystal oscillator Y3.
Reset circuit pin connects：
7th pin NRST --- reset circuit.
LED light pin connects：
25th pin FEN-LED --- the FEN-LED pins of sub-gate signal lamp LED4；
26th pin HE-LED --- the HE-LED pins of switching signal lamp LED3；
28th pin JIEDI-LED --- the JIEDI-LED pins of ground signalling lamp LED1；
Key-press input pin connects：
30th pin YUAN/JIU a --- distant place/on the spot switchs the YUAN/JIU pins of S2；
The HEZHA pins of 45th pin HEZHA --- closing switch SW2；
46th pin FENZHA --- separating brake switchs the FENZHA pins of SW1.
The amount of outputing channel pin connects：
The HE-OUT pins of 32nd pin HE-OUT --- photoelectrical coupler U14；
The FENZHA-XH pins of 42nd pin FENZHA-XH --- photoelectrical coupler U11；
The YUAN/JIU-XH pins of 43rd pin YUAN/JIU-XH --- photoelectrical coupler U12.
Intake channel pin connects：
The HW/FW pins of 21 pin HW/FW --- photoelectrical coupler U4；
The JDW pins of 19 pin JDW --- photoelectrical coupler U5；
The DQYW pins of 16 pin DQYW --- photoelectrical coupler U8；
The KFW pins of 15 pin KFW --- photoelectrical coupler U9；
The KHW pins of 14 pin KHW --- photoelectrical coupler U10；
Debugging interface JTAG pins connect：
7th pin NRST --- jtag interface RES pins；
34th pin TMS --- jtag interface TMS pin；
37th pin TCK --- jtag interface TCK pin；
38th pin TDI --- jtag interface TDI pins；
39th pin TDO --- jtag interface TDO pins；
40th pin PB4 --- the 3rd pin PB4 of jtag interface.
(2) power module chip AC/DC FAD6-0524-WFCI pins connect：
1st pin FG --- the earth；
2nd pin VIN1 --- external AC220V firewires (L)；
3rd pin VIN2 --- external AC220V firewires (N)；
4th pin GND --- J1 terminals the 1st and the 3rd pin；
5th pin+5V --- J1 terminals the 5th and the 7th pin；
7th pin 24VGND --- J1 terminals the 27th and the 29th pin；
8th pin+24V --- J1 terminals the 23rd and the 25th pin.
(3) power module chip DC/DC AMS1117 pins connect：
1st pin GND --- GND；
2nd pin Vout --- VCC；
3rd pin+5V --- J2 terminals the 5th and the 7th pin.
The flow of the program of the present embodiment
As shown in Figure 10, on-load switch main program step is as follows：
1) system platform initializes.System clock, I/O, house dog, timer interruption etc. is configured in system；Initially
Change logic control output, LED；Enabled timer, house dog；
2) house dog is reset.After the completion of system initialization, into cycle, often recycle 12000 times and carry out once feeding dog, reset
House dog；
3) keyboard is scanned.After system is scanned monitoring to separating brake, combined floodgate, control point, control combination switch, effective button is grasped
Make to carry out corresponding set；
4) logic master control.Logic master control by pairing point position, control divide position, control close position, ground connection position, low pressure position, etc.
After the state of intake is judged with switching flag bits, the set amount of outputing flag bit；
5) LED logic controls are performed.System is lighted or is closed LED according to separating brake, combined floodgate, several input signals of ground connection and refer to
Show lamp.
As shown in figure 11, the logic master control program circuit step of the present embodiment：
1. it determines to close and divides position state.After program enters logic master control, a point position is closed according to intake first and is inputted, judges ring
Net cabinet Intelligent control device, which is currently located in, closes position still point position, the corresponding flag bit of juxtaposition；
2. a determining distant place/state on the spot.Judgement is presently at remote location still with regard to position, and set accordingly indicates
Position；Judge whether low pressure position is closed, be grounded and whether disconnect.Only meet the item that low pressure position is closed and ground connection position disconnects simultaneously
Under part, separating brake, combined floodgate and switching on and off could be carried out and stop control output operation, if conditions are not met, removing separating brake, close a floodgate behaviour
Terminate behind the correlating markings position of work；
3. perform separating brake logic control.Whether current state is judged in position is closed, if so, it is a distant place, on the spot to judge；
Corresponding separating brake order is detected, if received, separating brake output；
4. perform combined floodgate logic control.Whether current state is judged in point position, if so, judging to be in a distant place still just
Ground state is detecting whether order of accordingly closing a floodgate, and detects combined floodgate order, output of closing a floodgate；
5. performing switching on and off stops control.Detect switching on and off opening flag position whether set, if detecting set,
The corresponding separating brake action flag bit of detection divide position whether in place, the conjunction position of corresponding feed motion flag bit whether in place, if arrived
Position stops corresponding control output.
The execution flow of the interrupt service subroutine of the present embodiment：
As shown in figure 12, system uses timer 2 as interrupt source, at interval of 10ms generate it is primary interrupt, detection separating brake,
The flag bits states such as combined floodgate, make corresponding operating, are the execution flow of interrupt service subroutine below：
1. system is after entering the interrupt, house dog is reset；
2. judging whether combined floodgate flag bit is set to very, if combined floodgate flag bit is true, combined floodgate output time is judged, otherwise
Combined floodgate shutoff operation is not entered；
3. judge combined floodgate output time whether beyond 1s.If combined floodgate output time exceeds 1s, output of closing a floodgate is closed；
4. close close a floodgate output and flag bit.
5. judging whether separating brake flag bit is set to very, if separating brake flag bit is true, separating brake output time is judged, otherwise
Separating brake shutoff operation is not entered；
6. judge separating brake output time whether beyond 1s.If separating brake output time exceeds 1s, separating brake output is closed；
7. close separating brake output and flag bit.
8. clear interrupt flag bit；
9. exit interruption.
The looped network cabinet intelligent control device on-load switch of the present embodiment realizes that function has control ring main unit separating brake, closes a floodgate, and
There are divide-shut brake instruction, earthing switch position instruction and detection low pressure state.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, under the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to the technical side of the present invention
The various modifications and improvement that case is made, should all fall within the scope of protection of the present invention.
Claims (7)
1. a kind of ring main unit load switch Intelligent control device, it is characterised in that：Including microcontroller, key switch, LED state
Indicator light, power module, photoelectric isolation module, intake channel, the amount of outputing channel, the key switch, LED state instruction
Lamp, power module and photoelectric isolation module are connect respectively with microcontroller, the intake channel and the amount of outputing channel respectively with
Photoelectric isolation module communicates to connect, and the power module is also connect with photoelectric isolation module, and the power module is accessed from outside
220V is exchanged, and varistor access AC/DC modular converter FAD6-0524-WFCI chips in parallel are converted into two-way direct current
Pressure, is converted to 24V direct currents, as photoelectrical coupler and relay driving source, another way is converted to 5V direct currents, is passing through all the way
DC/DC modular converters AMS1117 is converted to 3.3V outputs, powers to processor.
2. ring main unit load switch Intelligent control device according to claim 1, it is characterised in that：The microcontroller is adopted
By the use of STM32F103C8T6 as core processor.
3. ring main unit load switch Intelligent control device according to claim 2, it is characterised in that：The intake channel
Using 5 channel intakes, intake channel accesses signal by bottom plate J5 terminals, connecting substrate J3 terminals, by U4, U5, U8,
U9, U10 photoelectric coupler isolation, input processor.
4. ring main unit load switch Intelligent control device according to claim 3, it is characterised in that：The amount of the outputing channel
The amount of outputing there is combined floodgate output, separating brake output, distant signal output, hand sub-signal to export several output channels, the amount of outputing is from
Device output control signal is managed, substrate J2 terminals, connecting bottom board J1 ends are accessed by U11, U12, U13, U14 photoelectric coupler isolation
Son exports control signal by relay.
5. a kind of control method of ring main unit load switch Intelligent control device, it is characterised in that：
After system initializes platform, real-time query button, intake channel input signal, realize analyzing logic control
Analysis, and separating brake output, output of closing a floodgate are handled in interrupt service subroutine；
Include the following steps：
1.1) system platform initializes；System clock, I/O, house dog, timer interruption module is configured in system；Initially
Change logic control output, LED；Enabled timer, house dog；
2.1) house dog is reset；After the completion of system initialization, into cycle, often recycle 12000 times and carry out once feeding dog, clearing is seen
Door dog；
3.1) keyboard is scanned；After system is scanned monitoring to separating brake, combined floodgate, control point, control combination switch, to effective button operation
Carry out corresponding set；
4.1) logic master control；Logic master control closes that position, ground connection position, low pressure position is several opens by pairing point position, control point position, control
Enter the state of amount and after switching flag bits are judged, the set amount of outputing flag bit；
5.1) LED logic controls are performed；LED indication is lighted or closed to system according to separating brake, combined floodgate, several input signals of ground connection
Lamp.
6. the control method of ring main unit load switch Intelligent control device according to claim 5, it is characterised in that：It is described
Step 4.1) includes：
4.11) it determines to close to divide position state；After program enters logic master control, divide position input signal according to intake conjunction first, sentence
Disconnected ring main unit Intelligent control device, which is currently located in, closes position still point position, the corresponding flag bit of juxtaposition；
4.12) state of a distant place/on the spot is determined；Judgement is presently at remote location still with regard to position, and set accordingly indicates
Position；Judge whether low pressure position is closed, be grounded and whether disconnect；Only meet the item that low pressure position is closed and ground connection position disconnects simultaneously
Under part, separating brake, combined floodgate and switching on and off could be carried out and stop control output operation, if conditions are not met, removing separating brake, close a floodgate behaviour
Terminate behind the correlating markings position of work；
4.13) separating brake logic control is performed；Whether current state is judged in position is closed, if so, it is a distant place, on the spot to judge；
Corresponding separating brake order is detected, if received, separating brake output；
4.14) combined floodgate logic control is performed；Whether current state is judged in point position, if so, judging to be in a distant place still just
Ground state is detecting whether order of accordingly closing a floodgate, and detects combined floodgate order, output of closing a floodgate；
4.15) it performs switching on and off and stops control；Detect switching on and off opening flag position whether set, if detecting set,
The corresponding separating brake action flag bit of detection divide position whether in place, the conjunction position of corresponding feed motion flag bit whether in place, if arrived
Position stops corresponding control output.
7. the control method of ring main unit load switch Intelligent control device according to claim 6, it is characterised in that：Also wrap
Include interrupt service subroutine 5.2), specifically include following steps：
5.21) house dog after entering the interrupt, is reset；
5.22) judge whether combined floodgate flag bit is set to very, if combined floodgate flag bit is true, judge combined floodgate output time, otherwise
Combined floodgate shutoff operation is not entered；
5.23) judge combined floodgate output time whether beyond 1s；If combined floodgate output time exceeds 1s, output of closing a floodgate is closed；
5.24) close a floodgate output and flag bit are closed；
5.25) judge whether separating brake flag bit is set to very, if separating brake flag bit is true, judge separating brake output time, otherwise
Separating brake shutoff operation is not entered；
5.27) judge separating brake output time whether beyond 1s；If separating brake output time exceeds 1s, separating brake output is closed；
5.27) separating brake output and flag bit are closed；
5.28) clear interrupt flag bit；
5.29) interruption is exited.
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| CN201810151088.5A CN108132634B (en) | 2018-02-14 | 2018-02-14 | Intelligent control device and control method for load switch of ring main unit |
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| CN201810151088.5A CN108132634B (en) | 2018-02-14 | 2018-02-14 | Intelligent control device and control method for load switch of ring main unit |
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| CN108132634B CN108132634B (en) | 2024-01-09 |
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