CN205644221U - Power station switch control system and power station switch controlling means - Google Patents
Power station switch control system and power station switch controlling means Download PDFInfo
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- CN205644221U CN205644221U CN201620257477.2U CN201620257477U CN205644221U CN 205644221 U CN205644221 U CN 205644221U CN 201620257477 U CN201620257477 U CN 201620257477U CN 205644221 U CN205644221 U CN 205644221U
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- 239000013307 optical fiber Substances 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 7
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 4
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- 238000012544 monitoring process Methods 0.000 description 4
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- 230000007246 mechanism Effects 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
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- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
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Abstract
The utility model relates to a power station switch control system and power station switch controlling means, this system include surveillance center and at least one power station switch controlling means, and controlling means includes control section and circuit part, and control section includes controller and touch -sensitive screen, and the controller is connected with the touch -sensitive screen communication, the circuit part includes control scheme and motor circuit. Controller among all power station switch controlling means all is connected with the surveillance center communication. This kind of control mode has guaranteed the flexibility and the high efficiency of control, and can control the divide -shut brake of switch in a flexible way, and guaranteed the reliability of divide -shut brake, guaranteed follow -up maintenance personal's personal safety. And the device can reduce electric wiring construction volume and latent fault point, simplifies electric debugging and operation maintenance, realizes the intensification.
Description
Technical field
This utility model relates to power station disconnecting link control system and power station disconnecting link control device.
Background technology
Water can receive increasing attention due to its cleaning, pollution-free, the inexhaustible characteristic of the energy,
Correspondingly, country's input in power station also gets more and more, such as: the three gorges hydropower plant and Xiaolangdi water
Power station.Power generation part in power station specifically includes that the hydraulic turbine, for water can be converted into electric energy；Electric energy
Transmission circuit, carries out pick-up and output for the electric energy sent by the hydraulic turbine.Owing to high-voltage switch gear is at circuit
In play the effect connecting or disconnecting circuit, so, it has considerable position, circuit in circuit
Regular maintenance and circuit safety all rely on these high-voltage switch gears, then, the normal control of high-voltage switch gear
And action is very important for whole circuit.
The operation of high-voltage switch gear needs external control can carry out divide-shut brake action, such as disconnecting link to be dependent on electricity
Dynamic operating mechanism realizes the divide-shut brake of disconnecting link, utilizes positive and negative the transferring of motor to realize divide-shut brake.
But, at present, the control device controlling disconnecting link opening and closing lock is relatively simple mostly, it is impossible to carry out effectively
Ground controls；And, can not carry out the divide-shut brake of disconnecting link monitoring in detail in real time when controlling, it is impossible in real time
Know the concrete condition controlling and running.
Utility model content
The purpose of this utility model is to provide a kind of power station disconnecting link control system, in order to solve traditional control
The problem that mode cannot carry out effective monitoring to the divide-shut brake of disconnecting link.This utility model provides a kind of water power simultaneously
Stand disconnecting link control device.
For achieving the above object, scheme of the present utility model includes a kind of power station disconnecting link control system, including
Surveillance center and at least one power station disconnecting link control device, described power station disconnecting link control device includes PLC
And touch screen, PLC is connected with touch screen communication, and described PLC controls for the divide-shut brake of corresponding disconnecting link, institute
Some PLC all export and are connected in a bus, and this bus passes through the first fibre optic repeater connecting communication optical fiber,
Described communication optical fiber connects Surveillance center by the second fibre optic repeater.
Described control device includes controlling circuit and motor circuit, and described control circuit includes separating brake controlling brancher
With shutting-brake control branch road, on described separating brake controlling brancher, string is provided with normally opened contact and the relay of separating brake relay
The control coil of KA, on described shutting-brake control branch road, string is provided with normally opened contact and the relay of closing relay
The control coil of KE, described motor lines route the first motor branch road and the second motor branch circuit parallel connection is constituted, described
On first motor branch road successively string to be provided with of a normally opened contact of relay K E and relay K A normally opened
Contact, on described second motor branch road, string is provided with another normally opened contact and the relay of relay K A successively
Another normally opened contact of KE, a feeder ear for the motor of divide-shut brake connects described relay K E
The junction point of one normally opened contact of one normally opened contact and relay K A, another power supply of described motor
End connects another normally opened contact of described relay K A and the connection of another normally opened contact of relay K E
Point；PLC controls to connect separating brake relay and the closing relay of corresponding intrument.
On described separating brake controlling brancher, also string is provided with the normally-closed contact of relay K E, described shutting-brake control branch road
On also string be provided with the normally-closed contact of relay K A.
Described bus is ModbusPlus bus.
A kind of power station disconnecting link control device, including controlling part and circuit part, described control part includes
PLC and touch screen, PLC is connected with touch screen communication；Described circuit part includes controlling circuit and motor lines
Road, described control circuit includes separating brake controlling brancher and shutting-brake control branch road, and described separating brake controlling brancher is gone here and there
It is provided with the normally opened contact of separating brake relay and the control coil of relay K A, described shutting-brake control branch road is gone here and there
It is provided with the normally opened contact of closing relay and the control coil of relay K E, described motor lines route the first electricity
Machine branch road and the second motor branch circuit parallel connection are constituted, and on described first motor branch road, string is provided with relay K E successively
A normally opened contact and a normally opened contact of relay K A, on described second motor branch road successively string set
There are another normally opened contact of relay K A and another normally opened contact of relay K E, for divide-shut brake
One feeder ear of motor connect a normally opened contact of described relay K E and relay K A one is normally opened
The junction point of contact, another of another feeder ear described relay K A of connection of described motor is normally opened tactile
The junction point of another normally opened contact of point and relay K E；PLC controls to connect separating brake relay and combined floodgate continues
Electrical equipment.
On described separating brake controlling brancher, also string is provided with the normally-closed contact of relay K E, described shutting-brake control branch road
On also string be provided with the normally-closed contact of relay K A.
Described control device also includes that 4G communication module, described PLC are connected with this 4G communication module.
Described control device also includes the current-mode analog quantity detection module for detecting described electric motor loop electric current,
Described PLC sampling connects described current-mode analog quantity detection module.
The power station disconnecting link control system that this utility model provides is specifically designed to the control to disconnecting link, and this system is special
Note the control in disconnecting link, it is possible to effectively control disconnecting link, it is achieved the divide-shut brake of disconnecting link；Further, this system is passed through
PLC is capable of disconnecting link and controls and networking communication etc.；By the configuration programming of touch screen, it is achieved touch
Control, the Real time displaying of various types of signal, detailed log recording etc., so, can be real by this touch screen
The best man-machine interaction.It is essential that utilize optical fiber that all of PLC and Surveillance center are carried out communication even
Connect, enable Surveillance center to know the control situation of each PLC in real time, facilitate unified monitoring.So, should
The divide-shut brake of disconnecting link can be had one to control clearly by system, it is ensured that the reliability of divide-shut brake, it is ensured that
The personal safety of subsequent maintenance personnel, and electrical wiring construction volume and potential trouble point can be reduced, letter
Change electric adjustment and operation maintenance, it is achieved intensive.
Accompanying drawing explanation
Fig. 1 is power station disconnecting link control system object construction schematic diagram；
Fig. 2 is the simplified basic schematic diagram of power station disconnecting link control system；
Fig. 3 is to control the simple principle schematic diagram that apparatus control portion is divided；
Fig. 4 is the display schematic diagram of touch screen；
Fig. 5 is the circuit connection diagram of whole control circuit；
Fig. 6 is the local line schematic diagram of Fig. 5；
Fig. 7 is the local line schematic diagram of Fig. 5.
Detailed description of the invention
The utility model is described in more detail below in conjunction with the accompanying drawings.
Power station disconnecting link control system embodiment
As depicted in figs. 1 and 2, power station disconnecting link control system, including switchyard (i.e. Surveillance center),
And at least two power station disconnecting link control device, control the number of device according to the scale in power station and line
The number of the disconnecting link in road specifically sets.
Being provided with controller in the disconnecting link control device of each power station, this controller is that inside can arrange phase
Answering the control chip of software program, such as: single-chip microcomputer and PLC etc., the present embodiment is as a example by PLC.Each
Control PLC in device to be connected with Surveillance center communication by networking, be used for realizing PLC and Surveillance center
Data message mutual.Realize the means that all of PLC is connected with Surveillance center communication be divided into wired mode and
Wireless mode, wherein, when making wirelessly, the most supporting connection of each PLC has a wireless telecommunications mould
Block, carries out information by this wireless communication module and Surveillance center mutual；And, in order to ensure that data are transmitted
Efficiency, this wireless communication module can be the most relatively advanced 4G communication module；When using wired side
During formula, each PLC is all connected in a bus, and this bus is connected with Surveillance center by communication optical fiber,
Realize the mutual of data, and, as a specific embodiment, this bus can be that ModbusPlus is total
Line.It addition, when using optical fiber solutions to carry out data transmission, add at the two ends of optical fiber and there is double light mouth
Fibre optic repeater, i.e. bus are attached with communication optical fiber by fibre optic repeater, and communication optical fiber passes through optical fiber
Repeater is connected with Surveillance center.Convert electrical signals to optical signal, then transmit signals to switchyard
The signal of telecommunication is converted optical signals to again, it is ensured that distance (≤2000m) signal before (Surveillance center)
The reliability of transmission.
Both data transfer modes all have respective advantage: use wireless telecommunications, long transmission distance, save
The input of cable；Use bus and optical-fibre communications, can conveniently realize reliable MB+ communication, " remote signalling amount,
Remote control amount, remote measurement amount " extensibility and friendly, diversified man-machine interaction, shown the new of product
Newness, motility.
For wherein any one controls device, including controlling part and circuit part, as it is shown on figure 3, control
Part processed also includes touch screen in addition to including PLC, between PLC and the touch screen in same control device
Employing Programme Line connects, and carries out communication by RS232.
PLC includes several functional modules, and as shown in table 1, it is Schneider PLC, and it accommodates 10 and inserts
The backboard slot of part, the power module of 24V, Unity CPU 486 processor, switching input module,
Switching value output module, Analog input mModule, MB+ communication module etc..Each functional module collects in order
Become on same backboard, and use the CPU module of PLC internal unity to process.It addition, according to high-voltage switch gear
Need the switching value gathered, analog quantity to count and be equipped with corresponding input module, count outfit accordingly according to output
Output module, be equipped with corresponding communication module according to the requirement of full station communication networking mode.
Table 1
Touch screen is for the input of parameter and to main control, GIS Stateful Inspection, operation note, warning day
The display of the pictures such as will, version information, user's management, as shown in Figure 4, facilitates staff to check.
As it is shown in figure 5, the circuit part in control device includes controlling circuit and motor circuit.Fig. 6 and Tu
7 partial circuit diagram being Fig. 5, and, can the most intuitively by the circuit diagram in Fig. 6 and Fig. 7
Understand the circuit part in this control device mainly which part is made up of.As shown in Figure 6, circuit bag is controlled
Including separating brake controlling brancher and shutting-brake control branch road, on shutting-brake control branch road, string is provided with the normal of closing relay KL1
Opening the control coil of contact and relay K E, on separating brake controlling brancher, string is provided with the normal of separating brake relay K L2
Open the control coil of contact and relay K A；It addition, in order to realize interlocking, it is ensured that effectively realize closing a floodgate and
Separating brake, on separating brake controlling brancher, also string is provided with the normally-closed contact of relay K E, on shutting-brake control branch road
Also string is provided with the normally-closed contact of relay K A.
It addition, PLC controls to connect control coil and separating brake relay K L2 of corresponding closing relay KL1
Control coil.
When carrying out closing operation, PLC controls the control coil of closing relay KL1 and obtains electric, and KL1's is normal
Opening the closing of contact, the control coil of relay K E obtains electric, relay K E on separating brake controlling brancher normally closed
Contact disconnects, it is ensured that effective disconnection of separating brake controlling brancher；When carrying out sub-switching operation, with above-mentioned in like manner.
As it is shown in fig. 7, motor lines route the first motor branch road and the second motor branch circuit parallel connection is constituted, the first electricity
On machine branch road, string is provided with a normally opened contact of relay K E and a normally opened contact of relay K A successively,
On second motor branch road, string is provided with another of another normally opened contact of relay K A and relay K E successively
Normally opened contact；Feeder ear for the motor of divide-shut brake connect relay K E a normally opened contact and
The junction point of one normally opened contact of relay K A, another feeder ear of this motor connects relay K A
The junction point of another normally opened contact of another normally opened contact and relay K E.So, as shown in Figure 7,
When the normally opened contact of two relay K E in this motor circuit closes, electric current flows through motor from left to right；
When the normally opened contact of two relay K A in this motor circuit closes, electric current flows through motor from right to left,
So, when the normally opened contact of relay K A and KE is respectively closed, it is provided that to the power positive cathode of motor just
Good contrary, it is achieved the rotating of motor, realize the switch closing and switch opening of motor with this.
So, the work process of this control device is: when carrying out closing operation, and PLC controls separating brake relay
The control coil of device KL1 obtains electric, the normally opened contact Guan Bi of KL1, and the control coil of relay K E obtains electric, point
The normally-closed contact of relay K E on lock controlling brancher disconnects, and meanwhile, two of the KE on motor circuit are normal
Opening the closing of contact, motor rotates along a direction, regards as here rotating forward, it is achieved the combined floodgate of disconnecting link；When
When carrying out sub-switching operation, PLC controls the control coil of separating brake relay K L2 and obtains electric, the normally opened contact of KL2
Guan Bi, the control coil of relay K A obtains electric, and the normally-closed contact of relay K A on shutting-brake control branch road breaks
Open, meanwhile, two normally opened contact Guan Bis of the KA on motor circuit, motor rotates along another direction,
Here reversion is regarded as, it is achieved the separating brake of disconnecting link.
It addition, according to the detailed circuit diagram shown in Fig. 5, below the principle in motor brake loop is illustrated:
Motor feed motion puts in place and postpones, and microswitch-SL1 disconnects, and closing relay coil blackout all connects
Point resets, and now KE normally closed contact, KA normally closed contact, auxiliary switch Q normal opened contact are all in conducting
State, by motor M (ZH1 end) → brake resistor R → KE (41,42) → KA (41,42) → Q
(61,63) → M (D3, D4) → Q (57,59) → KA (31,32) → KE (31,32) → motor M (ZH2
End) form loop, wherein motor does not also have stall (being equivalent to power supply), and resistance-R absorbs motor power, makes
Motor quickly stall, serves cushioning effect to motor drive mechanism.Correspondingly, the action of motor separating brake is to position
After, microswitch-SL2 disconnects, separating brake relay K A coil blackout, and all contacts reset, now KE
Normally closed contact, KA normally closed contact, auxiliary switch Q normally closed contact are all in conducting state, by motor M (ZH1
End) → brake resistor-R → KE (41,42) → KA (41,42) → Q (62,64) →-M (D3,
D4) → Q (58,60) → KA (31,32) → KE (31,32) → motor M (ZH2 end) forms loop,
Wherein motor does not also have stall, and resistance R absorbs motor power, makes motor quickly stall, plays motor drive mechanism
Arrive cushioning effect.
PLC can also be used to detect this loop current for the motor of divide-shut brake, to monitor this motor in real time
Operation conditions, at this moment, this control device the most also includes the current analog for detecting this electric motor loop electric current
Amount existing current sensing means such as detection module, such as current transformer etc., this current detection module is arranged on
In the loop of motor, PLC sampling connects this current-mode analog quantity detection module.No matter which kind of PLC carrying out
Controlling or receive which kind of data signal, it is required to arrange corresponding software program.Utilize unity software
Carry out writing of PLC software, according to the difference of concrete control object, by whole program according to different
Function divide into some subprograms, adds mastery routine after the scanning sequency of each subprogram carries out layout integration
Among.In whole mastery routine, initialized subprogram mainly completes switch amount input and output, middle change
The reset function of amount, time register and counter register etc..Control subprogram and mainly complete each function
Control.Alarm signal scanning subprogram mainly completes the warning function to each monitoring state amount generation saltus step.
When utilizing Vijeo Designer that touch screen is carried out configuration and programming, for making man machine interface the brightest
, it is respectively provided with main control, GIS Stateful Inspection, operation note, alarm log, version information, use
The pictures such as family management.
Fig. 6 and Fig. 7 is the schematic diagram of control circuit, on the basis of meeting above-mentioned control, in this circuit also
Can include that in other parts, such as motor circuit, also string sets fuse, for protection circuit.
Power station disconnecting link control device embodiment
The concrete structure of this control device has had detailed description in said system embodiment, the most no longer
Illustrate.
It is presented above specific embodiment, but this utility model is not limited to described embodiment.
Basic ideas of the present utility model are above-mentioned basic scheme, for those of ordinary skill in the art, according to
Teaching of the present utility model, designs the model of various deformation, formula, parameter are not required to spend creativeness
Work.The change that in the case of without departing from principle of the present utility model and spirit, embodiment carried out, repair
Change, replace and modification still falls within protection domain of the present utility model.
Claims (8)
1. a power station disconnecting link control system, it is characterised in that include Surveillance center and at least one water
Power station disconnecting link control device, described power station disconnecting link control device includes PLC and touch screen, PLC and touch
Screen communication connects, and described PLC controls for the divide-shut brake of corresponding disconnecting link, and all of PLC all exports and is connected to
Article one, in bus, this bus passes through the first fibre optic repeater connecting communication optical fiber, and described communication optical fiber is by the
Two fibre optic repeaters connect Surveillance center.
Power station the most according to claim 1 disconnecting link control system, it is characterised in that described control
Device includes controlling circuit and motor circuit, and described control circuit includes that separating brake controlling brancher and shutting-brake control prop up
Road, on described separating brake controlling brancher, string is provided with the normally opened contact of separating brake relay and the control line of relay K A
Circle, on described shutting-brake control branch road, string is provided with the normally opened contact of closing relay and the control line of relay K E
Circle, described motor lines route the first motor branch road and the second motor branch circuit parallel connection is constituted, and described first motor props up
On road, string is provided with a normally opened contact of relay K E and a normally opened contact of relay K A successively, described
On second motor branch road, string is provided with another of another normally opened contact of relay K A and relay K E successively
Normally opened contact, feeder ear for the motor of divide-shut brake connects that of described relay K E is normally opened to be touched
The junction point of one normally opened contact of point and relay K A, another feeder ear of described motor connects described
Another normally opened contact of relay K A and the junction point of another normally opened contact of relay K E；PLC is controlled
System connects separating brake relay and the closing relay of corresponding intrument.
Power station the most according to claim 2 disconnecting link control system, it is characterised in that described separating brake
On controlling brancher, also string is provided with the normally-closed contact of relay K E, described shutting-brake control branch road also goes here and there to be provided with and continues
The normally-closed contact of electrical equipment KA.
Power station the most according to claim 1 disconnecting link control system, it is characterised in that described bus
For ModbusPlus bus.
5. a power station disconnecting link control device, it is characterised in that include controlling part and circuit part,
Described control part includes that PLC and touch screen, PLC are connected with touch screen communication；Described circuit part includes
Controlling circuit and motor circuit, described control circuit includes separating brake controlling brancher and shutting-brake control branch road, described
On separating brake controlling brancher, string is provided with the normally opened contact of separating brake relay and the control coil of relay K A, described
On shutting-brake control branch road, string is provided with the normally opened contact of closing relay and the control coil of relay K E, described
Motor lines route the first motor branch road and the second motor branch circuit parallel connection is constituted, on described first motor branch road successively
String is provided with a normally opened contact of relay K E and a normally opened contact of relay K A, described second motor
On branch road, string is provided with that another of another normally opened contact of relay K A and relay K E is normally opened to be touched successively
Point, a feeder ear for the motor of divide-shut brake connects a normally opened contact of described relay K E and continues
The junction point of one normally opened contact of electrical equipment KA, another feeder ear of described motor connects described relay
Another normally opened contact of KA and the junction point of another normally opened contact of relay K E；PLC controls to connect
Separating brake relay and closing relay.
Power station the most according to claim 5 disconnecting link control device, it is characterised in that described separating brake
On controlling brancher, also string is provided with the normally-closed contact of relay K E, described shutting-brake control branch road also goes here and there to be provided with and continues
The normally-closed contact of electrical equipment KA.
Power station the most according to claim 5 disconnecting link control device, it is characterised in that described control
Device also includes that 4G communication module, described PLC are connected with this 4G communication module.
Power station the most according to claim 5 disconnecting link control device, it is characterised in that described control
Device also includes the current-mode analog quantity detection module for detecting described electric motor loop electric current, and described PLC samples
Connect described current-mode analog quantity detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620257477.2U CN205644221U (en) | 2016-03-30 | 2016-03-30 | Power station switch control system and power station switch controlling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620257477.2U CN205644221U (en) | 2016-03-30 | 2016-03-30 | Power station switch control system and power station switch controlling means |
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| Publication Number | Publication Date |
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| CN205644221U true CN205644221U (en) | 2016-10-12 |
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ID=57074991
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620257477.2U Active CN205644221U (en) | 2016-03-30 | 2016-03-30 | Power station switch control system and power station switch controlling means |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313370A (en) * | 2017-07-05 | 2017-11-03 | 长治清华机械厂 | Safety stop lever with microwave sounding |
| CN114023608A (en) * | 2021-09-23 | 2022-02-08 | 河南平高电气股份有限公司 | High-voltage circuit breaker and locking control system thereof |
-
2016
- 2016-03-30 CN CN201620257477.2U patent/CN205644221U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313370A (en) * | 2017-07-05 | 2017-11-03 | 长治清华机械厂 | Safety stop lever with microwave sounding |
| CN114023608A (en) * | 2021-09-23 | 2022-02-08 | 河南平高电气股份有限公司 | High-voltage circuit breaker and locking control system thereof |
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