CN105446224B - A kind of dcs of high-voltage frequency converter - Google Patents
A kind of dcs of high-voltage frequency converter Download PDFInfo
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- CN105446224B CN105446224B CN201510971453.3A CN201510971453A CN105446224B CN 105446224 B CN105446224 B CN 105446224B CN 201510971453 A CN201510971453 A CN 201510971453A CN 105446224 B CN105446224 B CN 105446224B
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- cabinet body
- cabinet
- information acquisition
- control system
- acquisition module
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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
- G05B19/0423—Input/output
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25232—DCS, distributed control system, decentralised control unit
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Programmable Controllers (AREA)
Abstract
The invention discloses a kind of dcs of high-voltage frequency converter, it is characterized in that, it include: master control system and more set cabinet body information acquisition modules, master control system (2, 3, 4) for controlling the power cell of high-voltage frequency converter, multiple cabinet body information acquisition modules (1), for acquiring the temperature information of (1~N) in each cabinet body of high-voltage frequency converter, cabinet door switching information and fan operation state information, it is connected with each other between multiple cabinet body information acquisition modules (1) by universal serial bus (L1), and (2 are connect with master control system, 3, 4).
Description
Technical field
The invention belongs to electronic technology fields, and in particular to a kind of high-voltage frequency converter dcs.
Background technique
High-voltage frequency converter is as shown in Figure 1, mainly by phase-shifting transformer, the power cell of different number and control system structure
At.Phase-shifting transformer, power cell and the control system of high-voltage frequency converter are as shown in Fig. 2, be individually placed to transformer case, power list
Among first cabinet and control cabinet.As the capacity of high-voltage frequency converter becomes greatly, cabinet body quantity used in transformer case and unit cabinet
It is being continuously increased.And in actual items, the functions cabinet body such as bypass cabinet, soft-start cabinet also will increase under normal circumstances.
The considerations of in personal safety and equipment protection, each cabinet body require to carry out following three detections: cabinet door shape
State detection, in-cabinet temperature real-time detection, cabinet top fan condition monitoring.The way of the prior art is exactly all independent cabinet bodies
It detects signal and master control system is directly connected to by wiring.But with the increase of cabinet body quantity, the quantity and length of these lines
It will greatly increase, while the corresponding interface of master control system side must also increase.This result between cabinet body wiring quantity it is more,
Wire length is longer, cable interlocks the problems such as complicated, is not easy to production assembly, on-site maintenance, while also increasing the event of product
Barrier rate and maintenance cost.
It is an object of the invention to solve existing technological deficiency, providing one kind can be original to replace with a small amount of connecting line
A large amount of connecting lines between cabinet body can both reduce the quantity and length being routed between cabinet body, save the field wiring time and be produced into
This, and the high-voltage frequency converter dcs of failure rate can be reduced.
Summary of the invention
First technical solution of the invention is a kind of dcs of high-voltage frequency converter characterized by comprising
Master control system and more set cabinet body information acquisition modules,
Master control system (2,3,4) is used to control the power cell of high-voltage frequency converter,
Multiple cabinet body information acquisition modules (1), for acquiring the temperature of (1~N) in each cabinet body of high-voltage frequency converter
Information, cabinet door switching information and fan operation state information, by serial between multiple cabinet body information acquisition modules (1)
Bus (L1) is connected with each other, and (2,3,4) are connect with master control system.
Second technical solution is based on the first technical solution, which is characterized in that the master control system includes man-machine interface
(4), controller (3), PLC system (2).
Third technical solution is based on the second technical solution, which is characterized in that cabinet body information acquisition module (1) includes programmable
Control chip (10), by the control chip (10) by collected cabinet door switching-state information, in-cabinet temperature information and wind
Data exchange is carried out with the PLC system (2) in master control system after machine running state information progress coded treatment.
4th technical solution is based on the second technical solution, which is characterized in that cabinet body information acquisition module (1) and main control system
Controller (3) in system carries out data exchange.
5th technical solution is based on the second technical solution, which is characterized in that cabinet body information acquisition module (1) and main control system
Man-machine interface (4) in system carries out data exchange.
6th technical solution is based on third technical solution, which is characterized in that the cabinet body information acquisition module (1) and master control
System (2,3,4) processed is connected by serial communication bus (L1)；
Master control system (2,3,4) is main website, and the information of each cabinet body is read using inquiry mode；
Cabinet body information acquisition module (1) is used as slave station, has address set-up function inside cabinet body information acquisition module (1), no
Possess different tributary address with the cabinet body information acquisition module in cabinet body.
7th technical solution is based on any technical solution in the first to the 6th, which is characterized in that the cabinet body information collection
The connection of module (1) and master control system (2,3,4) further includes power bus and other connecting lines other than communication bus
(L2)；
Power bus is used to power to each cabinet body information acquisition module；Cabinet door switching information or fan operation state information
Master control system (2,3,4) are connected in series to by other connecting lines (L2), the quick response for emergency.
Detailed description of the invention
The drawings are only for the purpose of illustrating a preferred embodiment, and is not to be construed as limiting the invention.Entire attached
In figure, the same reference numbers will be used to refer to the same parts.
Fig. 1 is cell level connection type high-voltage frequency converter circuit diagram；
Fig. 2 is cell level connection type high-voltage frequency converter group cabinet floor map；
Fig. 3 is the distributed control system structure block diagram；
Fig. 4 is PLC system and cabinet body information acquisition module serial communication topological diagram；
Fig. 5 is transformer case, power unit cabinet and each a set of cabinet body information acquisition module functional schematic of control cabinet；
Fig. 6 is temperature information acquisition access；
Fig. 7 is that cabinet door switch state and fan operation state acquire access；
Fig. 8 is cabinet door switch state signal wiring diagram.
Specific embodiment
The present invention provides many applicable creative concepts, which be can be reflected in a large number of on specific
Hereinafter.The specific embodiment described in following embodiments of the present invention is only used as a specific embodiment of the invention
Exemplary illustration, and be not meant to limit the scope of the invention.
The invention will be further described with specific embodiment with reference to the accompanying drawing.
Fig. 1 is cell level connection type high-voltage frequency converter circuit diagram.As shown in Figure 1, cell level connection type high-voltage frequency converter, main
It to be made of phase-shifting transformer, the power cell of different number and control system (not shown).Phase-shifting transformer, power cell
And control system is as shown in Fig. 2, be individually placed among transformer case, power unit cabinet and control cabinet.It is representative in Fig. 2
A unit cabinet is shown, according to the quantity of the output power of frequency converter and power cell difference, the quantity of power unit cabinet
It is different.Transformer case and power unit cabinet and control cabinet all have cabinet door and blower, below in addition to explaining separately, transformer case
It is referred to as cabinet body with power unit cabinet and control cabinet, and is illustrated with cabinet body quantity N.
Fig. 3 is the distributed control system structure block diagram.Each cabinet body (1~N) is provided with cabinet body information acquisition module,
In the present embodiment, each cabinet body information acquisition module is all the same, and following whole by reference number 1 is illustrated.For the present invention
For, the cabinet body information acquisition module of each cabinet body both may be the same or different.High-voltage frequency converter has master control system, by
PLC system (programmable logic controller (PLC)) 2, controller 3, man-machine interface 4 are constituted.Controller 3 is controlled external by optical-fibre communications
Power cell, controller 3, man-machine interface 4, PLC system (programmable logic controller (PLC)) 2 are interconnected by connection.It is each
The cabinet body information acquisition module 1 of cabinet body (1~N) is connected with each other by universal serial bus L1.Fig. 4 is that PLC system is adopted with cabinet body information
Collect module serial communication topological diagram.As shown in figure 4, total by serial communication between PLC system 2 and cabinet body information acquisition module 1
Line connection, PLC system 2 periodically inquire the state of each cabinet body using inquiry mode.
Fig. 5 is transformer case, power unit cabinet and each a set of cabinet body information acquisition module functional schematic of control cabinet.Become
In depressor cabinet, power unit cabinet be equipped with blower and cabinet door switch and detection temperature sensor, control cabinet in addition to there is no blower,
Remaining is identical as transformer case, power unit cabinet.Cabinet body information acquisition module 1 is made of control chip 10 and peripheral circuit, right
External tapping has IO input interface in cabinet, the input interface (4-20mA) of in-cabinet temperature
The input of blower 1, blower 2, blower 3, cabinet door 1, cabinet door 2, cabinet door 3 and spare 1,2 state detection signal connects
Mouthful, power supply, the com interface of the 24V being connect with input power, the communication bus of serial communication, IO1 output interface, IO2 output
Interface.IO1 output interface is alarmed for cabinet door, and IO2 output interface is alarmed for blower.
Each intracorporal temperature sensor of cabinet acquires three temperature signals, acquires air inlet and outlet and cabinet in unit cabinet
Body intermediate region temperature, transformer case acquire the temperature of three-phase windings respectively.
After temperature signal is acquired by temperature sensor PT100 in each cabinet body, obtained current signal is input to cabinet body
Information acquisition module 1, if Fig. 6 enters sampling A/D chip AD7794 after sampling resistor, this chip can acquire multi way temperature signal.
Sampled result is passed to control chip 10 in a manner of SPI by sampling A/D chip AD7794 after sampling, and control chip 10 decodes
After obtain the intracorporal temperature information of cabinet.
The cabinet door switching signal and fan operation signal of each cabinet body are input to cabinet body information collection mould by cabinet interior cabling
Block 1 passes after isolating chip ISO7241 after numeral input serializer SN65HVS881 in a coded form as shown in Figure 7
To control chip 10, control chip 10 obtains related status information after decoding.In the control chip 10 of cabinet body information acquisition module
It has passed through ISO3082 between RS485 communication bus to be isolated and level conversion.
The serial communication bus of present embodiment be one master and multiple slaves mode, baud rate 19200bps, wherein PLC system 2 be
Host, each intracorporal cabinet body information acquisition module 1 of cabinet are slave, could support up 16 slaves.
16 BCD toggle switch are configured in each cabinet body information acquisition module 1, in cabinet body assembling, to difference
Cabinet body be separately encoded, to distinguish different cabinet bodies and slave addresses.It is as follows to correspond to cabinet body relationship for BCD toggle switch in this example:
| BCD toggle switch | Cabinet number | Cabinet body |
| 0000 | 1 | Transformer case 1 |
| 0001 | 2 | Transformer case 2 |
| 0010 | 3 | Transformer case 3 |
| 0011~0111 | 4~8 | Retain |
| 1000 | 1 | Unit cabinet 1 |
| 1001 | 2 | Unit cabinet 2 |
| 1010 | 3 | Unit cabinet 3 |
| 1011 | 4 | Unit cabinet 4 |
| 1100 | 5 | Unit cabinet 5 |
| 1101 | 6 | Unit cabinet 6 |
| 1110~1111 | 7~8 | Retain |
After control chip 10 obtains the intracorporal temperature information of cabinet, cabinet door switch state and fan operation state, to set in advance
The communications protocol set is encoded, and waits RS485 main website, is in the present embodiment the inquiry instruction of PLC system 2, when
When inquiry instruction reaches, this group of temperature information, states of cabinet door and fan condition are sent to PLC system 2 by protocol packing, if
No inquiry instruction reaches, then is automatically updated in realtime temperature value, cabinet door and fan condition.
All cabinet body information that PLC system 2 obtains reach man-machine interface 4 by communication, and user can observe cabinet body in real time
The case where.
When detecting fan trouble, man-machine interface can issue warning note, and issue halt instruction, and controller 3 will
Block output, PLC system 2 light cabinet door warning device.
When cabinet body when the temperature is excessively high, selected by the judgement of man-machine interface 4, controller 1 can make frequency converter run on high temperature
Appearance state drops.
When detecting that cabinet door is opened, PLC system will judge operating condition, if electricity condition is obtained in high pressure, for the person
Security consideration, PLC system is by direct cutoff high；Otherwise alarm will be issued, high pressure or operation are disabled turn on.
Controlled in each cabinet body information acquisition module 1 the obtained cabinet door switch state of chip 10 and fan operation state in addition to
Coding is by being further provided with an access L2 (connecting line) outside communications together with temperature information.Chip 10 is controlled by cabinet
Door opening and closing state and fan operation state are exported by I/O port to isolation optocoupler, pass through triode after the level conversion of optocoupler
To drive relay 12 to carry out signal output.The output of relay 12 of cabinet door switch state signal is serially connected in one in all cabinet bodies
It rises.Fig. 8 is cabinet door switch state signal wiring diagram, and the head end of series connection and end are connected directly to PLC system 2.In this way when
When cabinet door opens failure, PLC system 2 can be made a response with prestissimo, handled high pressure disjunction or made warning, then again
Communicatively inquire specific failure cabinet body information.
It is identical as the relay of cabinet door switch state signal, can also separately set an access, fan operation state signal after
Electric appliance output is serially connected, and the head end of series connection and end are connected directly to PLC system 2.When fan parking failure,
PLC system 2 can be made a response with prestissimo, handled high pressure disjunction or made warning, then communicatively inquire again
Specific failure cabinet body information.
From the foregoing, it will be observed that the dcs of high-voltage frequency converter of the invention can acquire the intracorporal temperature letter of each cabinet
Breath, cabinet door switching information and fan operation state information, connected by serial communication bus, can be taken with a small amount of connecting line
For a large amount of connecting lines between original cabinet body, cabinet body quantity increases, and will not lead to the increase of connecting line quantity between cabinet body, both may be used
To reduce the quantity and length that are routed between cabinet body, field wiring time and production cost are saved, and can reduce because of cable between cabinet body
Staggeredly failure rate caused by complexity.Compared to existing method, it can detect and connect between due state and information and cabinet body
Line number amount, reduce production and assembly cost, it is most important that can reduce because wiring it is intricate caused by failure rate with
Repair time.
Only one of a specific embodiment of the invention above, within the scope of the invention, can to each embodiment into
Row deformation, in present embodiment, master control system is made of PLC system 2, controller 3, man-machine interface 4 but it is also possible to be other
The system of structure.In these variations all belong to the scope of protection of the present invention.
Claims (2)
1. a kind of dcs of high-voltage frequency converter characterized by comprising master control system and more set cabinet body information
Acquisition module,
The high-voltage frequency converter includes phase-shifting transformer, power cell, master control system,
Master control system is used to control the power cell of high-voltage frequency converter,
The phase-shifting transformer, power cell, master control system are separately positioned in cabinet body, and the phase-shifting transformer is at least arranged
With cooling blower is installed in the cabinet body of power cell,
Multiple cabinet body information acquisition modules (1), for acquiring the intracorporal temperature information of each cabinet of high-voltage frequency converter, cabinet door is opened
Information and fan operation state information are closed, passes through universal serial bus (L1) phase between multiple cabinet body information acquisition modules (1)
It connects, and is connect with master control system,
The master control system includes man-machine interface (4), controller (3), PLC system (2), and the controller (3) controls high pressure
The power cell of frequency converter, the man-machine interface (4), controller (3), PLC system (2) are connected by connection,
The cabinet body information acquisition module (1) is connect with PLC system (2) by serial communication bus (L1),
The cabinet body information acquisition module (1) transports collected cabinet door switching-state information, in-cabinet temperature information and blower
Data exchange is carried out with the PLC system (2) in master control system after row status information progress coded treatment,
The cabinet body information acquisition module (1) is used as slave station, has address set-up function inside cabinet body information acquisition module (1), no
Possess different tributary address with the cabinet body information acquisition module in cabinet body,
The PLC system (2) is main website, the information of each cabinet body is read using inquiry mode, and switch according to the cabinet door
Status information, in-cabinet temperature information and fan operation state information issue instruction, and described instruction includes halt instruction, makes to become
Frequency device is in the instruction that high temperature drop holds state,
The connection of the cabinet body information acquisition module (1) and the PLC system (2) further includes that power supply is total other than communication bus
Line and other connecting lines (L2),
Power bus is used to power to each cabinet body information acquisition module；Cabinet door switching information or fan operation state information pass through
Other connecting lines (L2) are connected in series to the PLC system (2), and the PLC system (2) is according to other connecting lines (L2)
Connection status carries out the quick response of emergency.
2. the dcs of high-voltage frequency converter according to claim 1, which is characterized in that cabinet body information collection mould
Man-machine interface (4) in block (1) and master control system carries out data exchange.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510971453.3A CN105446224B (en) | 2015-12-22 | 2015-12-22 | A kind of dcs of high-voltage frequency converter |
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| CN201510971453.3A CN105446224B (en) | 2015-12-22 | 2015-12-22 | A kind of dcs of high-voltage frequency converter |
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| CN105446224B true CN105446224B (en) | 2019-02-19 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106227105A (en) * | 2016-08-29 | 2016-12-14 | 黑石测控技术（苏州）有限公司 | Distributed measurement and acquisition control system |
| CN109521702B (en) * | 2017-09-19 | 2020-11-27 | 蓝星（北京）技术中心有限公司 | Method and server for monitoring running state of distributed control system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006254673A (en) * | 2005-03-14 | 2006-09-21 | Meidensha Corp | High-voltage inverter device |
| CN101618726A (en) * | 2009-08-13 | 2010-01-06 | 北京康吉森交通技术有限公司 | Modular axle-counting system and method for counting axles |
| CN102255388A (en) * | 2011-07-18 | 2011-11-23 | 航天科工深圳（集团）有限公司 | Distributed distribution network terminal device |
| CN203933353U (en) * | 2014-06-30 | 2014-11-05 | 北京合康亿盛变频科技股份有限公司 | A kind of novel high-pressure frequency structure |
| CN204086418U (en) * | 2014-07-25 | 2015-01-07 | 北京合康亿盛变频科技股份有限公司 | High voltage converter monitor apparatus |
| CN204462778U (en) * | 2015-02-03 | 2015-07-08 | 浙江新富凌电气股份有限公司 | With the high voltage converter of wireless remote monitering function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202275305U (en) * | 2011-07-27 | 2012-06-13 | 上海东大自动化工程有限公司 | Frequency converter control device based on Profibus-DP |
-
2015
- 2015-12-22 CN CN201510971453.3A patent/CN105446224B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006254673A (en) * | 2005-03-14 | 2006-09-21 | Meidensha Corp | High-voltage inverter device |
| CN101618726A (en) * | 2009-08-13 | 2010-01-06 | 北京康吉森交通技术有限公司 | Modular axle-counting system and method for counting axles |
| CN102255388A (en) * | 2011-07-18 | 2011-11-23 | 航天科工深圳（集团）有限公司 | Distributed distribution network terminal device |
| CN203933353U (en) * | 2014-06-30 | 2014-11-05 | 北京合康亿盛变频科技股份有限公司 | A kind of novel high-pressure frequency structure |
| CN204086418U (en) * | 2014-07-25 | 2015-01-07 | 北京合康亿盛变频科技股份有限公司 | High voltage converter monitor apparatus |
| CN204462778U (en) * | 2015-02-03 | 2015-07-08 | 浙江新富凌电气股份有限公司 | With the high voltage converter of wireless remote monitering function |
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