CN206099503U - A electrical power generating system for auxiliary control system of thermal power plant - Google Patents
A electrical power generating system for auxiliary control system of thermal power plant Download PDFInfo
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- CN206099503U CN206099503U CN201620965810.5U CN201620965810U CN206099503U CN 206099503 U CN206099503 U CN 206099503U CN 201620965810 U CN201620965810 U CN 201620965810U CN 206099503 U CN206099503 U CN 206099503U
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Abstract
The utility model discloses an electrical power generating system for auxiliary control system of thermal power plant, auxiliary control system contain a plurality of subsystem, electrical power generating system contains: the power cabinet, it is equipped with owner, vice two tunnel general supply inlet wires, a main power module subassembly, it links to each other with main general supply inlet wire, becomes the first voltage for each subsystem power supply with the voltage conversion of main power source, main the 2nd power module subassembly, it links to each other with main general supply inlet wire, becomes the second voltage for each subsystem power supply with the voltage conversion of main power source, a vice power module subassembly, it links to each other with vice president's power inlet wire, becomes the first voltage for each subsystem power supply with the voltage conversion of auxiliary power, two vice power module subassembly, it links to each other with vice president's power inlet wire, becomes the second voltage for each subsystem power supply with the voltage conversion of auxiliary power. The utility model discloses redistribute auxiliary control system's power, improved the reliability of auxiliary control system control source.
Description
Technical field
The utility model is related to power-supply system, more particularly to a kind of power-supply system for thermal power plant's auxiliary control system.
Background technology
Auxiliary control system electric power-feeding structure is similar to, by taking a unit condensate polishing treatment control system as an example, a unit precision processing
Set-up of control system has a power cabinet（01CRA01）, the power cabinet designs major and minor two-way 220VAC general supply inlet wires, by No. 1
Owner's factory building security personnel EMCC 1A sections 10BMB09H interval and No. 2 owner's factory building security personnel EMCC 2A sections 20BMB09H intervals provide,
Two-way power supply is delivered to through isolation air switch distribution at different levels after a unit condensate polishing treatment PLC power cabinets back terminal block, is 1,2
Number each switch board fastener base plates of unit precision processing PLC, 48VDC and 24VDC power modules provide 220VAC primary sources, in addition electricity
An automatic duplicate supply switching device is provided with the cabinet of source, major-minor two-way incoming power is one after automatic duplicate supply switching device
Unit condensate polishing treatment operator station and field device power.
The 220VAC inlet wires of the main 48VDC power modules of one unit condensate polishing treatment of original take from 7ZK air switch, pair in power cabinet
The 220VAC inlet wires of 48VDC power modules take from 7FK air switch in power cabinet, pass through Jing after power module is converted to 48VDC power supplys
Diode-isolated, Parallel opertation to each PLC machine cabinet of a unit condensate polishing treatment, live each solenoid valve control case, as two
The inquiry power supply of each DI points of unit condensed water precision processing system.The main 24VDC power modules of one unit condensate polishing treatment of original
220VAC inlet wires take from 8ZK air switch in power cabinet, the 220VAC inlet wires of secondary 24VDC power modules take from 8FK air switch in power cabinet,
Jing after power module is converted to 24VDC power supplys by diode-isolated, Parallel opertation is to each PLC machine of a unit condensate polishing treatment
Cabinet, mainly as the driving voltage of two unit condensed water precision processing systems each two-wire system transducer voltage and DO points on the spot.
In prior art, there is the phenomenon that two units share a set of 48VDC, 24VDC power module in auxiliary control system, if
A unit is powered and exception occurs in operation, causes power supply short circuit failure, it will cause whole DC power supplier failure, so as to
The operation of an other unit control system is had influence on, the safe operation of auxiliary control system is drastically influence.
Exist simultaneously：Once main road incoming power loses, it is impossible to be switched to stand-by power supply, will cause the system server and
Field device power interrupts, and causes auxiliary control network data to interrupt, and causes host computer data to lose monitoring, has a strong impact on each auxiliary control system
Safe operation.
Utility model content
The purpose of this utility model is to provide a kind of power-supply system for thermal power plant's auxiliary control system, redistributes auxiliary control system
The power supply of system, improves the reliability that auxiliary control system controls power supply.
In order to realize object above, the utility model is achieved through the following technical solutions：
A kind of power-supply system for thermal power plant's auxiliary control system, described auxiliary control system includes several subsystems, and it is special
Putting is, comprising：
Power cabinet, it is provided with major and minor two-way general supply inlet wire；
Main first power module component, it is connected with main general supply inlet wire, by the voltage conversion of main power source into each height
The first voltage of system power supply；
Main second source modular assembly, it is connected with main general supply inlet wire, by the voltage conversion of main power source into each height
The second voltage of system power supply；
Secondary first power module component, it is connected with vice president's electric power incoming line, by the voltage conversion of auxiliary power into each height
The first voltage of system power supply；
Secondary second source modular assembly, it is connected with vice president's electric power incoming line, by the voltage conversion of auxiliary power into each height
The second voltage of system power supply.
Subsystem described in several is：First unit, the second unit and synergic system.
Described master's the first power module component is included：
First main power source module, for by the voltage conversion of main power source into the first voltage powered to the first unit；
Second main power source module, for by the voltage conversion of main power source into the first voltage powered to the second unit；And,
3rd main power source module, for by the voltage conversion of main power source into the first voltage powered to synergic system.
Described main second source modular assembly is included：
4th main power source module, for by the voltage conversion of main power source into the second voltage powered to the first unit；
5th main power source module, for by the voltage conversion of main power source into the second voltage powered to the second unit；And,
6th main power source module, for by the voltage conversion of main power source into the second voltage powered to synergic system.
Described pair the first power module component is included：
First auxiliary power module, for by the voltage conversion of auxiliary power into the first voltage powered to the first unit；
Second auxiliary power module, for by the voltage conversion of auxiliary power into the first voltage powered to the second unit；And,
3rd auxiliary power module, for by the voltage conversion of auxiliary power into the first voltage powered to synergic system.
Described secondary second source modular assembly is included：
Fourth officer power module, for by the voltage conversion of auxiliary power into the second voltage powered to the first unit；
5th auxiliary power module, for by the voltage conversion of auxiliary power into the second voltage powered to the second unit；And,
6th auxiliary power module, for by the voltage conversion of auxiliary power into the second voltage powered to synergic system.
Double-power supply switching device is provided between described major and minor two-way general supply inlet wire.
The utility model compared with prior art, with advantages below：
1st, each auxiliary control system 24VDC, 48VDC power supply is thoroughly independent, and a unit power-supply system appearance exception will not
Affect the normal operation of remaining unit so that control system power supply scattered risks, improve the safety and reliability of equipment.
2nd, it is provided with double-power supply switching device, it is ensured that two-way inlet wire reliably switches, once primary power cource failure, can guarantee that normal
It is switched to stand-by power supply work so that on the spot equipment will not dead electricity malfunction.
Description of the drawings
Fig. 1 is a kind of circuit theory diagrams of the power-supply system for thermal power plant's auxiliary control system of the utility model.
Specific embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is done and is further explained
State.
As shown in figure 1, a kind of power-supply system for thermal power plant's auxiliary control system, the auxiliary control system includes several subsystems
System, power-supply system is included：Power cabinet, it is provided with major and minor two-way general supply inlet wire；Main first power module component, it is total with main
Electric power incoming line is connected, by the voltage conversion of main power source into the first voltage powered to subsystems；Main second source module group
Part, it is connected with main general supply inlet wire, by the voltage conversion of main power source into the second voltage powered to subsystems；Secondary first
Power module component, it is connected with vice president's electric power incoming line, by the voltage conversion of auxiliary power into first powered to subsystems
Voltage；Secondary second source modular assembly, it is connected with vice president's electric power incoming line, by the voltage conversion of auxiliary power into subsystems
The second voltage of power supply.In the present embodiment, the voltage 220V of major and minor power supply.
In a particular embodiment, the subsystem described in several is：First unit, the second unit and synergic system.
Above-mentioned master's the first power module component is included：First main power source module 11, for by the voltage conversion of main power source
Into the first voltage powered to the first unit；Second main power source module 12, for by the voltage conversion of main power source into the second machine
The first voltage of group power supply；And, the 3rd main power source module 13, for by the voltage conversion of main power source into powering to synergic system
First voltage.
Above-mentioned main second source modular assembly is included：4th main power source module 21, for by the voltage conversion of main power source
Into the second voltage powered to the first unit；5th main power source module 22, for by the voltage conversion of main power source into the second machine
The second voltage of group power supply；And, the 6th main power source module 23, for by the voltage conversion of main power source into powering to synergic system
Second voltage.
First, second, third and fourth and five main power source module be connected on the circuit of main power source by air switch respectively.
Above-mentioned pair the first power module component is included：First auxiliary power module 31, for by the voltage conversion of auxiliary power
Into the first voltage powered to the first unit；Second auxiliary power module 32, for by the voltage conversion of auxiliary power into the second machine
The first voltage of group power supply；And, the 3rd auxiliary power module 33, for by the voltage conversion of auxiliary power into powering to synergic system
First voltage.
Above-mentioned secondary second source modular assembly is included：Fourth officer power module 41, for by the voltage conversion of auxiliary power
Into the second voltage powered to the first unit；5th auxiliary power module 42, for by the voltage conversion of auxiliary power into the second machine
The second voltage of group power supply；And, the 6th auxiliary power module 43, for by the voltage conversion of auxiliary power into powering to synergic system
Second voltage.
First, second, third and fourth and five auxiliary power module be connected on the circuit of auxiliary power by air switch respectively.
In the present embodiment, first voltage is 48VDC, and second voltage is 24VDC, main first power module component and secondary first
Power module component is converted to after 48VDC power supplys by diode-isolated, each solenoid valve control case in Parallel opertation scene, and conduct
The inquiry power supply of secondary control system DI point.Main second source modular assembly and secondary second source modular assembly are converted to 24VDC power supplys
Afterwards by diode-isolated, as the driving voltage of secondary control system DO point.
Double-power supply switching device 5 is provided between above-mentioned major and minor two-way general supply inlet wire.Specifically, dual power supply switching dress
It is set to APC devices, it is ensured that two-way inlet wire reliably switches, once primary power cource failure, can guarantee that and be normally switched to that stand-by power supply works,
So that on the spot equipment will not dead electricity malfunction.
In sum, a kind of power-supply system for thermal power plant's auxiliary control system of the utility model, redistributes auxiliary control system
Power supply, improve auxiliary control system control power supply reliability.
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that on
The description stated is not considered as to restriction of the present utility model.After those skilled in the art have read the above, for
Various modifications and substitutions of the present utility model all will be apparent.Therefore, protection domain of the present utility model should be by appended
Claim limiting.
Claims (7)
1. a kind of power-supply system for thermal power plant's auxiliary control system, described auxiliary control system includes several subsystems, its feature
It is, comprising：
Power cabinet, it is provided with major and minor two-way general supply inlet wire；
Main first power module component, it is connected with main general supply inlet wire, by the voltage conversion of main power source into subsystems
The first voltage of power supply；
Main second source modular assembly, it is connected with main general supply inlet wire, by the voltage conversion of main power source into subsystems
The second voltage of power supply；
Secondary first power module component, it is connected with vice president's electric power incoming line, by the voltage conversion of auxiliary power into subsystems
The first voltage of power supply；
Secondary second source modular assembly, it is connected with vice president's electric power incoming line, by the voltage conversion of auxiliary power into subsystems
The second voltage of power supply.
2. the power-supply system of thermal power plant's auxiliary control system is used for as claimed in claim 1, it is characterised in that the son described in several
System is：First unit, the second unit and synergic system.
3. the power-supply system of thermal power plant's auxiliary control system is used for as claimed in claim 2, it is characterised in that described master first is electric
Source module component is included：
First main power source module, for by the voltage conversion of main power source into the first voltage powered to the first unit；
Second main power source module, for by the voltage conversion of main power source into the first voltage powered to the second unit；And,
3rd main power source module, for by the voltage conversion of main power source into the first voltage powered to synergic system.
4. the power-supply system of thermal power plant's auxiliary control system is used for as claimed in claim 2, it is characterised in that described master second is electric
Source module component is included：
4th main power source module, for by the voltage conversion of main power source into the second voltage powered to the first unit；
5th main power source module, for by the voltage conversion of main power source into the second voltage powered to the second unit；And,
6th main power source module, for by the voltage conversion of main power source into the second voltage powered to synergic system.
5. the power-supply system of thermal power plant's auxiliary control system is used for as claimed in claim 2, it is characterised in that described pair first is electric
Source module component is included：
First auxiliary power module, for by the voltage conversion of auxiliary power into the first voltage powered to the first unit；
Second auxiliary power module, for by the voltage conversion of auxiliary power into the first voltage powered to the second unit；And,
3rd auxiliary power module, for by the voltage conversion of auxiliary power into the first voltage powered to synergic system.
6. the power-supply system of thermal power plant's auxiliary control system is used for as claimed in claim 2, it is characterised in that described pair second is electric
Source module component is included：
Fourth officer power module, for by the voltage conversion of auxiliary power into the second voltage powered to the first unit；
5th auxiliary power module, for by the voltage conversion of auxiliary power into the second voltage powered to the second unit；And,
6th auxiliary power module, for by the voltage conversion of auxiliary power into the second voltage powered to synergic system.
7. the power-supply system of thermal power plant's auxiliary control system is used for as claimed in claim 1, it is characterised in that described major and minor two
Double-power supply switching device is provided between the general supply inlet wire of road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620965810.5U CN206099503U (en) | 2016-08-29 | 2016-08-29 | A electrical power generating system for auxiliary control system of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620965810.5U CN206099503U (en) | 2016-08-29 | 2016-08-29 | A electrical power generating system for auxiliary control system of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099503U true CN206099503U (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620965810.5U Expired - Fee Related CN206099503U (en) | 2016-08-29 | 2016-08-29 | A electrical power generating system for auxiliary control system of thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253450A (en) * | 2016-08-29 | 2016-12-21 | 江苏大唐国际吕四港发电有限责任公司 | A kind of power-supply system for thermal power plant's auxiliary control system |
-
2016
- 2016-08-29 CN CN201620965810.5U patent/CN206099503U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253450A (en) * | 2016-08-29 | 2016-12-21 | 江苏大唐国际吕四港发电有限责任公司 | A kind of power-supply system for thermal power plant's auxiliary control system |
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Granted publication date: 20170412 Termination date: 20210829 |