CN209327811U - A kind of unit control system - Google Patents
A kind of unit control system Download PDFInfo
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- CN209327811U CN209327811U CN201920213711.5U CN201920213711U CN209327811U CN 209327811 U CN209327811 U CN 209327811U CN 201920213711 U CN201920213711 U CN 201920213711U CN 209327811 U CN209327811 U CN 209327811U
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Abstract
The embodiment of the present application provides a kind of unit control system, comprising: central control equipment and controlled unit；Central control equipment includes: main PLC and local signal collector；Controlled unit includes: generator set controller and remote signal collector；Main PLC is electrically connected with local signal collector and remote signal collector respectively, local signal collector and the electrical connection of remote signal collector；Wherein, the main PLC after connection, local signal collector and remote signal collector form the first looped network；Main PLC, for sending control instruction to generator set controller by the local signal collector in the first looped network；Alternatively, sending control instruction to generator set controller by the remote signal collector in the first looped network.Main PLC can send control instruction to generator set controller by the both links in the first looped network in the embodiment of the present application, increase the link of transmission control instruction, improve the stability of whole system operation.
Description
Technical field
This application involves equipment control technology fields, in particular to a kind of unit control system.
Background technique
Currently, the control system of generating set includes control layer and mechanical floor；Control layer includes upper layer programmable logic control
Device (Programmable Logic Controller, PLC), Ethernet switch and controlling terminal processed；Upper layer PLC by with
Too network switch and controlling terminal communicate to connect；Mechanical floor includes the generator set controller of lower layer PLC and connection lower layer PLC.
Upper layer PLC also passes through Ethernet switch and connect with lower layer plc communication.
During controlling generating set, upper layer PLC is sent to lower layer PLC by Ethernet switch and is controlled
Instruction, lower layer PLC control generator set controller after receiving the control instruction from upper layer PLC.
But during controlling generating set, upper layer PLC is logical by one in Ethernet switch
Interrogate link and to lower layer PLC issue control instruction, when the communication link breaks down, upper layer PLC will be unable to lower layer PLC into
Row controls and then is unable to control generating set, to influence the monitoring and operation of whole system.
Utility model content
In view of this, the embodiment of the present application is designed to provide a kind of unit control system, to alleviate ethernet communication
The failure of link monitors the influence with operation to whole system.
In a first aspect, the embodiment of the present application provides a kind of unit control system, wherein include: central control equipment and
Controlled unit；The central control equipment includes: main programmable logic controller (PLC) PLC and local signal collector；It is described controlled
Unit includes: generator set controller and remote signal collector；
Main PLC is electrically connected with the local signal collector and the remote signal collector respectively, the local signal
Collector and remote signal collector electrical connection；Wherein, the main PLC after connection, the local signal collector and
The remote signal collector forms the first looped network；
The main PLC, for by the local signal collector in first looped network to the generating set control
Device processed sends control instruction；Alternatively, by the remote signal collector in first looped network to the generating set control
Device processed sends control instruction.
With reference to first aspect, the embodiment of the present application provides the first possible embodiment of first aspect, wherein institute
Stating controlled unit is two, and the remote signal collector includes: head end remote signal collector and the acquisition of tail end remote signal
Device；
The main PLC is electrically connected with the local signal collector and the tail end remote signal collector respectively, described
Local signal collector and head end remote signal collector electrical connection；The main PLC, the local signal after connection are adopted
Storage, the head end remote signal collector and the tail end remote signal collector form the first looped network；
The main PLC, for by the local signal collector in first looped network to the generating set control
Device processed sends control instruction；Alternatively, by the tail end remote signal collector in first looped network to the generator
Group controller sends control instruction.
The possible embodiment of with reference to first aspect the first, the embodiment of the present application provide second of first aspect
Possible embodiment, wherein the controlled unit be it is multiple, the remote signal collector further includes that at least one is intermediate remote
Journey signal picker；
The head end remote signal collector passes sequentially through at least one described intermediate remote signal picker and the tail
Hold the electrical connection of remote signal collector；The main PLC, the local signal collector after connection, the head end remote signal
Collector, at least one described intermediate remote signal picker and the tail end remote signal collector form the first looped network.
With reference to first aspect, the embodiment of the present application provides the third possible embodiment of first aspect, wherein institute
Stating central control equipment further includes spare PLC；
The main PLC is also electrically connected with the spare PLC, and passes through the spare PLC and the remote signal collector
Connection；The main PLC, the spare PLC, the remote signal collector and the local signal collector form the first ring
Net.
The third possible embodiment with reference to first aspect, the embodiment of the present application provide the 4th kind of first aspect
Possible embodiment, wherein the system also includes controlling terminals；The central control equipment further includes Ethernet exchanging
Machine；
The main PLC and the Ethernet exchanging mechatronics, and eventually by the Ethernet switch and the control
End communication connection；Main PLC and the controlling terminal after connection form the second looped network；Second looped network includes the first communication chain
Road and the second communication link；
The main PLC, for being communicated by first communication link with the controlling terminal；Alternatively, passing through institute
The second communication link is stated to be communicated with the controlling terminal.
The 4th kind of possible embodiment with reference to first aspect, the embodiment of the present application provide the 5th kind of first aspect
Possible embodiment, wherein the spare PLC and the Ethernet exchanging mechatronics, and pass through the Ethernet exchanging
Machine and the controlling terminal communicate to connect；Spare PLC and the controlling terminal after connection form the second looped network；Second ring
Net includes the first communication link and the second communication link；
The spare PLC, for passing through first communication link in the main PLC failure and after switching to new main PLC
It is communicated with the controlling terminal；Alternatively, being communicated by second communication link with the controlling terminal.
The 4th kind of possible embodiment with reference to first aspect, the embodiment of the present application provide the 6th kind of first aspect
Possible embodiment, wherein the controlled unit further includes generator；
The generator set controller and the power generation mechatronics, for according to the control instruction control received
The generator and the running state data for reading the generator；
The generator set controller is also communicated to connect with the Ethernet switch, and passes through the Ethernet switch
It is connect with the main PLC and the spare plc communication, so that described in the spare PLC acquisition after the main PLC or switching
The running state data of the generator acquired in generator set controller.
The 6th kind of possible embodiment with reference to first aspect, the embodiment of the present application provide the 7th kind of first aspect
Possible embodiment, wherein the controlled unit further include: engine controller and engine；The engine controller
Start mechatronics with described；
The engine controller also with the Ethernet switch communicate to connect, and by the Ethernet switch with
The main PLC is connected with the spare plc communication, so that the spare PLC after the main PLC or switching obtains the hair
The running state data of the engine acquired in motivation controller.
With reference to first aspect, the embodiment of the present application provides the 8th kind of possible embodiment of first aspect, wherein also
Including central control cabinet；
The central control equipment is located in the central control cabinet.
With reference to first aspect, the embodiment of the present application provides the 9th kind of possible embodiment of first aspect, wherein institute
The quantity for stating controlled unit is 1~16.
A kind of unit control system provided by the embodiments of the present application, the system pass through main programmable logic controller (PLC) PLC, sheet
Earth signal collector and remote signal collector constitute the first looped network, main PLC can by the both links in the first looped network to
Generator set controller sends control instruction, when a link for transmitting control instruction breaks down, can switch the first ring
The controlled unit of another link pair mechanical floor in net is controlled, to ensure that the normal monitoring and fortune of whole system
Row improves the stability of whole system operation.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Following attached drawings, are described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of structural schematic diagram of unit control system provided by the embodiment of the present application；
Fig. 2 shows the structural schematic diagrams of another kind unit control system provided by the embodiment of the present application；
Fig. 3 shows the structural schematic diagram of another kind unit control system provided by the embodiment of the present application；
Fig. 4 shows the structural schematic diagram of another kind unit control system provided by the embodiment of the present application；
Fig. 5 shows the structural schematic diagram of another kind unit control system provided by the embodiment of the present application；
Fig. 6 shows the structural schematic diagram of another kind unit control system provided by the embodiment of the present application；
Fig. 7 shows a kind of system block diagram of gas internal-combustion engine set control system provided by the embodiment of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
Middle attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed according to a variety of different configurations.Therefore, below to the application provided in the accompanying drawings
The detailed description of embodiment be not intended to limit claimed scope of the present application, but be merely representative of the selected of the application
Embodiment.Based on embodiments herein, those skilled in the art are obtained without making creative work
Every other embodiment, shall fall in the protection scope of this application.
Fig. 1 is a kind of structural schematic diagram of unit control system provided by the embodiments of the present application, as shown in Figure 1, the system
System includes central control equipment 10 and controlled unit 11；Central control equipment 10 includes: main programmable logic controller (PLC)
(Programmable Logic Controller, PLC) 101 and local signal collector 102；Controlled unit 11 includes: power generation
Generator set controller 112 and remote signal collector 111.
Main PLC101 is electrically connected with local signal collector 102 and remote signal collector 111 respectively, local signal acquisition
Device 102 and remote signal collector 111 are electrically connected；Wherein, the main PLC101 after connection, local signal collector 102 and long-range
Signal picker 111 forms the first looped network.
Main PLC101, for passing through the local signal collector 102 in first looped network to generator set controller 112
Send control instruction；Alternatively, being sent out by the remote signal collector 111 in first looped network to generator set controller 112
Send control instruction.
In the embodiment of the present application, above-mentioned controlled unit 11 can be gas internal combustion electric generator group；Above-mentioned central control equipment
In 10 centrally located control cabinets, which can be described as ZAS cabinet.It include central processing unit in above-mentioned main PLC101
(Central Processing Unit, CPU)；Above-mentioned local signal collector 102 is PLC local input/output (Input/
Output, IO) substation；Above-mentioned remote signal collector 111 is PLC remote input/output (Input/Output, IO) IO
It stands.
In the embodiment of the present application, above-mentioned first looped network includes two communication links.Wherein, the first link are as follows: main PLC101-
Local signal collector 102- remote signal collector 111- generator set controller 112；Second link are as follows: main PLC101- is remote
Journey signal picker 111- generator set controller 112；Above-mentioned symbol "-" expression control instruction flows to direction.
In the embodiment of the present application, main PLC101 can send control by the first chain road direction generator set controller 112 and refer to
It enables；Main PLC101 can also send control instruction by the second chain road direction generator set controller 112.
In the embodiment of the present application, for the unit control system when actually working normally, main PLC101 pre-selects above-mentioned two
A link in link selects another link as reserve link as primary link.During the work time, main PLC101
Control instruction is sent by main chain road direction generator set controller 112；When primary link failure, main PLC101 is switched to spare chain
Road, and control instruction is sent to generator set controller 112 by reserve link.
A kind of unit control system provided by the embodiments of the present application, the system pass through main programmable logic controller (PLC)
PLC101, local signal collector 102 and remote signal collector 111 constitute the first looped network, and main PLC101 can pass through first
Both links in looped network send control instruction to generator set controller 112, when a link of transmission control instruction occurs
When failure, the controlled unit that can switch another link pair mechanical floor in the first looped network is controlled, to ensure that whole
The normal monitoring of a system and operation improve the stability of whole system operation.
Further, as shown in Fig. 2, it is provided by the embodiments of the present application another kind unit control system structural schematic diagram,
Controlled unit 11 is two, the respectively first controlled controlled unit 11b of unit 11a and second, and remote signal collector 111 wraps
It includes: the head end remote signal collector 111a corresponding to the first controlled unit 11a and the tail end corresponding to the second controlled unit 11b
Remote signal collector 111b.It wherein, include the first generator set controller 112a, the second controlled machine in the first controlled unit 11
It include the second generator set controller 112b in group 11b；
Main PLC101 is electrically connected with local signal collector 102 and tail end remote signal collector 111b respectively, local to believe
Number collector 102 and head end remote signal collector 111a electrical connection；Main PLC101, local signal collector 102 after connection,
Head end remote signal collector 111a and tail end remote signal collector 111b forms the first looped network.
Main PLC101, for being sent by the local signal collector 102 in the first looped network to generator set controller 112
Control instruction；It is controlled alternatively, being sent by the tail end remote signal collector 111b in the first looped network to generator set controller 112
System instruction.
In the embodiment of the present application, above-mentioned head end remote signal collector 111a is that the PLC on the first controlled unit 11a is long-range
The substation IO；Above-mentioned tail end remote signal collector 111b is the PLC remote I/O substation on the second controlled unit 11b；Wherein: first
Controlled unit 11a is gas internal combustion electric generator group 1；Second controlled unit 11b is gas internal combustion electric generator group 2.
In the embodiment of the present application, above-mentioned first looped network includes two communication links, in which:
First link are as follows: main PLC101- local signal collector 102- head end remote signal collector 111a- first generates electricity
Generator set controller 112a；Alternatively, main PLC101- local signal collector 102- head end remote signal collector 111a- tail end is remote
Journey signal picker the second generator set controller of 111b- 112b.
Second link are as follows: main PLC101- tail end remote signal collector the second generator set controller of 111b- 112b；Or
Person, main PLC101- tail end remote signal collector 111b- head end signal picker the first generator set controller of 111a- 112a.
In the embodiment of the present application, main PLC101 can send control by the first chain road direction generator set controller 112 and refer to
It enables, control instruction can also be sent by the second chain road direction generator set controller 112.
In the embodiment of the present application, for unit control system in actual work, main PLC101 pre-selects above-mentioned both links
In a link as primary link, select another link as reserve link.During the work time, main PLC101 passes through master
Chain road direction generator set controller 112 sends control instruction, and when primary link failure, main PLC101 is switched to reserve link, and
Control instruction is sent to generator set controller 112 by reserve link.
As an implementation, it is primary link that main PLC101, which selects above-mentioned first link, select above-mentioned second link for
Reserve link.Main PLC101 sends control instruction by the first chain road direction generator set controller 112, when primary link failure,
Main PLC101 is switched to the second link, and sends control instruction by the second chain road direction generator set controller 112.
A kind of unit control system provided by the embodiments of the present application, the system pass through main programmable logic controller (PLC)
PLC101, local signal collector 102, head end remote signal collector 111a and tail end remote signal collector 111b constitute the
One looped network, main PLC101 can send control instruction to generator set controller 112 by the both links in the first looped network, when
When transmitting the link failure of control instruction, the controlled of another link pair mechanical floor in the first looped network can be switched
Unit is controlled, to ensure that normal monitoring and the operation of whole system, improves the stability of whole system operation.
Further, unit control system provided by the embodiments of the present application, being controlled unit 11 is multiple, remote signal acquisition
Device 111 further includes at least one intermediate remote signal picker；
Head end remote signal collector 111a passes sequentially through at least one intermediate remote signal picker remotely to be believed with tail end
Number collector 111b electrical connection；Main PLC101, local signal collector 102, head end remote signal collector 111a after connection,
At least one intermediate remote signal picker and tail end remote signal collector 111b form the first looped network.
In the embodiment of the present application, above-mentioned first ring network structure is that main PLC101, local signal collector 102, head end are long-range
Signal picker 111a, sequentially connected intermediate remote signal picker, the remote signal collector 111b of tail end and above-mentioned
Main PLC101.
Above-mentioned first looped network includes two communication links, in which:
First link are as follows: main PLC101- local signal collector 102- head end remote signal collector 111a- first generates electricity
Generator set controller 112a；Alternatively, during main PLC101- local signal collector 102- head end remote signal collector 111a- is any
Between remote signal collector-tail end remote signal collector the second generator set controller of 111b- 112b.
Second link are as follows: main PLC101- tail end remote signal collector the second generator set controller of 111b- 112b；Or
Person, the main any intermediate remote signal picker of PLC101- tail end remote signal collector 111b--head end signal picker 111a-
First generator set controller 112b.
In the embodiment of the present application, main PLC101 can pass through first chain road direction the first generator set controller 112a or
Two generator set controller 112b send control instruction, can also by second chain road direction the first generator set controller 112a or
Person the second generator set controller 112b sends control instruction.
In the embodiment of the present application, for unit control system in actual work, main PLC101 pre-selects above-mentioned both links
In a link as primary link, select another link as reserve link.During the work time, main PLC101 passes through master
Chain road direction generator set controller 112 sends control instruction, and in primary link failure, main PLC101 is switched to reserve link,
And control instruction is sent to generator set controller 112 by reserve link.
A kind of unit control system provided by the embodiments of the present application, the system pass through main programmable logic controller (PLC)
PLC101, local signal collector 102, head end remote signal collector 111a, any intermediate remote signal picker and tail end
Remote signal collector 111b constitutes the first looped network, and main PLC101 can be by the both links in the first looped network to generating set
Controller 112 sends control instruction, when a link for transmitting control instruction breaks down, can switch in the first looped network
The controlled unit of another link pair mechanical floor is controlled, to ensure that normal monitoring and the operation of whole system, is improved
The stability of whole system operation.
Further, Fig. 3 shows the structural schematic diagram of another unit control system provided by the embodiments of the present application, such as schemes
Shown in 3, the central control equipment further includes spare PLC301；
Main PLC101 is also electrically connected with spare PLC301, and is connect by spare PLC301 with remote signal collector 111；
Main PLC101, spare PLC301, remote signal collector 111 and local signal collector 102 form the first looped network.
It is main PLC101, local signal collector 102, multiple long-range when controlled unit is multiple in the embodiment of the present application
The first looped network is formed with spare PLC301 between signal picker 111.Wherein, above-mentioned first ring network structure is, main PLC101, standby
With PLC301, remote signal collector 111, local signal collector 102, main PLC101.
In the embodiment of the present application, for unit control system in actual work, main PLC101 passes through the first looped network to generator
Group controller 112 sends control instruction, and above-mentioned first looped network includes both links.
Wherein, the first link are as follows: main PLC101- local signal collector 102- remote signal collector 111- generating set
Controller 112.Second link are as follows: the main spare PLC301- remote signal collector 111- generator set controller 112 of PLC101-.
In this way, main PLC101 can send control instruction by the first chain road direction generator set controller 112, the second chain can also be passed through
Road direction generator set controller 112 sends control instruction.
In the embodiment of the present application, for unit control system in actual work, main PLC101 pre-selects above-mentioned both links
In a link as primary link, select another link as reserve link.During the work time, main PLC101 passes through master
Chain road direction generator set controller 112 sends control instruction；When primary link failure, main PLC101 passes through reserve link to power generation
Generator set controller 112 sends control instruction.
When main PLC101 failure, then main PLC is switched to spare PLC301, spare PLC301 passes through the first looped network to hair
Motor group controller 112 sends control instruction, and it includes two that above-mentioned spare PLC301, which sends corresponding first looped network of control instruction,
Communication link.
Wherein, the first link are as follows: the spare main PLC101- local signal collector 102- remote signal collector of PLC301-
111- generator set controller 112.
Article 2 link are as follows: spare PLC301- remote signal collector 111- generator set controller 112.
In the embodiment of the present application, spare PLC301 can be sent by the first chain road direction generator set controller 112 and be controlled
Instruction can also send control instruction by the second chain road direction generator set controller 112.
In the embodiment of the present application, for unit control system when actually working normally, spare PLC301 pre-selects above-mentioned two
A link in link selects another link as reserve link as primary link.During the work time, spare
PLC301 sends control instruction by main chain road direction generator set controller 112；When primary link failure, spare PLC301 switching
Control instruction is sent to generator set controller 112 to reserve link, and by reserve link.
Spare PLC301 is arranged in a kind of unit control system provided by the embodiments of the present application, the system, make winner PLC101,
Spare PLC301, remote signal collector 111 and local signal collector 102 form the first looped network, reach network redundancy design,
It avoids and works as the problem of main PLC101 failure causes system communication to interrupt, to improve the stability and continuity of communication.
Further, Fig. 4 shows the structural schematic diagram of unit control system provided by the embodiments of the present application, as shown in figure 4,
The system also includes controlling terminals 402；The central control equipment further includes Ethernet switch 401；
Main PLC101 is electrically connected with Ethernet switch 401, and logical by Ethernet switch 401 and controlling terminal 402
Letter connection；Main PLC101 and controlling terminal 402 after connection form the second looped network；Second looped network includes the first communication link and the
Two communication links；
Main PLC101, for being communicated by first communication link with controlling terminal 402；Alternatively, by described
Second communication link is communicated with controlling terminal 402.
In the embodiment of the present application, above-mentioned Ethernet switch 401 is management type Ethernet switch；Above-mentioned controlling terminal
The control connecting in 402 dcs (Distributed Control System, DCS) work station with server is whole
End 402, and the DCS system that above-mentioned controlling terminal 402, server and DCS work station are constituted；Above-mentioned second looped network is Ethernet ring
Net.
In the embodiment of the present application, Ethernet switch 401 and controlling terminal 402 form Ethernet looped network, central control cabinet
In main PLC101 and spare PLC301 all controlled units 11 and the public ancillary equipment of controlled unit are monitored.It is each
Generator set controller 112 in a controlled unit 11 acquires the status data of generating set and transmits the data collected
To above-mentioned Ethernet switch 401, Ethernet switch 401 can will be received by the first communication link in the second looped network
Data are transmitted to controlling terminal 402；Ethernet switch 401 can also will be received by the second communication link in the second looped network
To data be transmitted to controlling terminal 402.
In the embodiment of the present application, for unit control system in actual work, Ethernet switch 401 pre-selects above-mentioned two
A communication link in link selects another communication link as reserve link as primary link.During the work time,
Ethernet switch 401 transmits data by main chain road direction controlling terminal 402；When primary link failure, Ethernet switch 401
It is switched to reserve link, and data are transmitted to controlling terminal 402 by reserve link.
A kind of unit control system provided by the embodiments of the present application, Ethernet switch 401 are built up with 402 groups of controlling terminal
Ethernet looped network, main PLC101 and spare PLC301 pass through collected data in the both links in Ethernet looped network
Any one is transmitted to controlling terminal 402, using above-mentioned link redundancy design, so that when one end link breaks down, it can be with
Another link switched in the second looped network is communicated with controlling terminal 402, improves the stability of system communication.
Further, unit control system provided by the embodiments of the present application, 401 electricity of spare PLC301 and Ethernet switch
Connection, and communicated to connect by Ethernet switch 401 and controlling terminal 402；Spare PLC301 and controlling terminal after connection
402 the second looped networks of composition；Second looped network includes the first communication link and the second communication link；
Spare PLC301, in main PLC101 failure and after switching to new main PLC, by first communication link with
Controlling terminal is communicated；Alternatively, being communicated by second communication link with controlling terminal.
In the embodiment of the present application, unit control system during the work time main PLC101 break down when, spare PLC301
Operating mode is automatically switched to receive public to all controlled units 11 and controlled unit after spare PLC301 is as new main PLC
Ancillary equipment is monitored the data collected, and above-mentioned data are transmitted to Ethernet switch 401, Ethernet switch
The data received can be transmitted to controlling terminal 402 by the first communication link in the second looped network by 401, can also pass through
The data received are transmitted to controlling terminal 402 by the second communication link in two looped networks.
In the embodiment of the present application, for unit control system in actual work, Ethernet switch 401 pre-selects above-mentioned two
A communication link in link is as primary link, and another communication link is as reserve link.During the work time, ether
Network switch 401 transmits data by main chain road direction controlling terminal 402；In primary link failure, Ethernet switch 401 is logical
It crosses reserve link and transmits data to controlling terminal 402.
The unit control system provided in the embodiment of the present application, since PLC designs for Redundant backup in central control cabinet, when
When in running order main PLC101 failure, the PLC of standby mode automatically switches to work PLC, and handoff procedure is unperturbed
Dynamic switching, the process will not influence the operation of system, will not influence long-range monitoring of the DCS system to controlled unit, improve
The stability of whole system work and operation.
Further, Fig. 5 shows the structural schematic diagram of unit control system provided by the embodiments of the present application, as shown in figure 5,
Controlled unit 11 further includes generator 501；
Generator set controller 112 is electrically connected with generator 501, for according to the control instruction control hair received
Motor 501 and the running state data for reading generator 501；
In the embodiment of the present application, generator set controller 112 also with Ethernet switch 401 communicate to connect, and by with
Too network switch 401 and main PLC101 and spare PLC301 are communicated to connect, so that spare after main PLC101 or switching
PLC301 obtains the running state data of the generator 501 acquired in generator set controller 112.
In the embodiment of the present application, generator set controller 112 can control the operation of generator 501 by control instruction,
And the running state data for the generator 501 that can be read, 501 running state data of generator read is transmitted to ether
Network switch 401, so that above-mentioned running state data is transmitted to above-mentioned controlling terminal 402 by Ethernet switch 401.
In the embodiment of the present application, above-mentioned generator set controller 112 passes through Ethernet switch 401 and main PLC101 and standby
It is communicated to connect with PLC301, so that the new main PLC after main PLC101 or spare PLC301 switching obtains generator set controller
The running state data of the generator 501 acquired in 112.
Further, as shown in fig. 6, the controlled unit further include: engine controller 601 and engine 602；Start
Machine controller 601 is electrically connected with engine 602；
Engine controller 601 is also communicated to connect with Ethernet switch 401, and passes through Ethernet switch 401 and master
PLC101 and spare PLC301 communication connection, so that the new main PLC acquisition after main PLC101 or spare PLC301 switching is started
The running state data of the engine 602 acquired in machine controller 601.
In the embodiment of the present application, engine controller 601 can control the operation of engine 602 by control instruction, and
602 running state data of engine read is transmitted to Ethernet by the running state data for the engine 602 that can be read
Interchanger 401, so that above-mentioned running state data is transmitted to above-mentioned controlling terminal 402 by Ethernet switch 401.
Further, unit control system provided by the embodiments of the present application, the quantity for being controlled unit 11 is 1~16.
In the embodiment of the present application, the cpu controller ethernet communication of the PLC configuration in above-mentioned ZAS central control cabinet is maximum
Support 48 client/servers, the unit quantity of system monitoring greatly improves under the main PLC101 control system, maximum branch
Hold the Centralized Monitoring and control of 16 units.
The system block diagram of gas internal-combustion engine set control system as shown in Figure 7, in Fig. 7, gas internal-combustion engine set control system
Including control layer and mechanical floor；It wherein, include DCS work station in control layer, which includes the control connecting with server
Terminal processed；It further include PLC host CPU controller (i.e. main PLC101), the local the PLC substation IO (i.e. local signal in above-mentioned control layer
Collector 102), PLC spare CPU controller (i.e. spare PLC301) and management type Ethernet switch；Wherein, PLC host CPU control
Device, PLC spare CPU controller, the local the PLC substation IO and management type Ethernet switch processed are installed on ZAS central control cabinet
It is interior.
It wherein, include right generating set n in gas internal combustion electric generator group 1 and combustion gas in above equipment layer.Here, in combustion gas
Right generating set, that is, above-mentioned controlled unit 11.Wherein, gas internal combustion electric generator group 1 includes being mounted on generator auxiliary power and simultaneously
PLC remote I/O substation (i.e. remote signal collector 111) in net control cabinet, automatic growth control (Automatic Gain
Control, AGC) 4-1 generator set controller 112 and AGS-1 engine system control cabinet；Wherein, AGS-1 engine system
It include engine controller 601 and engine 602 in control cabinet.Gas internal combustion electric generator group n includes being mounted on generator auxiliary
PLC remote I/O substation (i.e. remote signal collector 111) in power and cutting-in control cabinet, AGC4-n generator set controller
112 and AGS-n engine system control cabinet；It wherein, include 601 He of engine controller in AGS-n engine system control cabinet
Engine 602.Wherein, the corresponding two gas internal combustion electric generator groups of n=2 are illustrated only in n >=2, Fig. 7.
In the embodiment of the present application, the PLC host CPU control in the Redundant backup design of two PLC of control layer laying, normal work
Device work processed, meanwhile, the data generated in the course of work can be synchronized to PLC spare CPU controller by PLC host CPU controller.?
In course of normal operation, when PLC host CPU controller failure, switching PLC spare CPU controller can be in working condition, and
PLC spare CPU controller is worked on based on the synchronous data of PLC host CPU controller.Wherein, above system is by using pipe
Reason type Ethernet switch can support whole system to set up the first looped network and the second looped network.
In the embodiment of the present application, A network representation PLC host CPU controller and the direct-connected network of PLC spare CPU controller；C
The network communicated between network representation generator set controller 112 and management type Ethernet switch.
Wherein, B looped network i.e. the first looped network, above-mentioned B looped network include four links, wherein PLC host CPU controller is right respectively
Answer active and standby both links；PLC spare CPU controller respectively corresponds active and standby both links.
Correspondingly, the primary link of corresponding first looped network of PLC host CPU controller are as follows: PLC host CPU controller-PLC local IO
Substation-PLC remote I/O substation-PLC spare CPU controller-PLC host CPU controller；Correspondingly, PLC host CPU controller is corresponding
The reserve link of first looped network are as follows: the PLC host CPU controller-PLC spare CPU controller-PLC remote I/O substation local-PLC IO
Substation-PLC host CPU controller.
Correspondingly, the primary link of corresponding first looped network of PLC spare CPU controller are as follows: PLC spare CPU controller-PLC sheet
The ground substation IO-PLC remote I/O substation-PLC spare CPU controller；Alternatively, PLC spare CPU controller-PLC host CPU controller-
The local the PLC substation IO-PLC remote I/O substation-PLC spare CPU controller；Correspondingly, PLC spare CPU controller corresponding first
The reserve link of looped network are as follows: the PLC spare CPU controller-PLC remote I/O substation local-PLC substation IO-PLC spare CPU control
Device.
During the work time, PLC host CPU controller sends control instruction by main chain road direction generator set controller 112,
When primary link failure, PLC host CPU controller sends control instruction to generator set controller 112 by reserve link；When
When PLC host CPU controller failure, the switching of PLC spare CPU controller is in working condition, and PLC spare CPU controller passes through main chain
Road direction generator set controller 112 send control instruction, when primary link failure, PLC host CPU controller by reserve link to
Generator set controller 112 sends control instruction.
Wherein, D looped network is the second looped network, is made of management type Ethernet switch and DCS work station, above-mentioned D ring
Net includes two communication link of principal communication link and alternate communication link.
During the work time, the operation state of generator that management type Ethernet switch will acquire by principal communication link
Data are uploaded to DCS work station, and when primary link failure, management type Ethernet switch will acquire by alternate communication link
Operation state of generator data be uploaded to DCS work station.
In the embodiment of the present application, PLC host CPU controller, the local the PLC substation IO and the first of PLC remote I/O substation composition
Looped network, when the link one end break down when be not in PLC send control instruction can not be transmitted to generator set controller
112 the case where, does not influence system monitoring and operation；Since PLC control system CPU designs for Redundant backup in ZAS cabinet, work as work
When cpu fault, the CPU of standby mode automatically switches to work CPU, is switched to switching undisturbed, does not influence the operation of system, no
Influence long-range monitoring of the DCS system to unit；The ethernet communication link that Ethernet switch and controlling terminal are constituted is looped network,
Feelings of the unit data-signal upload less than controlling terminal 402 of controlled unit 11 are not will lead to when the link one end is broken down
Condition does not influence system monitoring and operation.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing, in addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Finally, it should be noted that embodiment described above, the only specific embodiment of the application, to illustrate the application
Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen
It please be described in detail, those skilled in the art should understand that: anyone skilled in the art
Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution.The protection in the application should all be covered
Within the scope of.Therefore, the protection scope of the application should be subject to the protection scope in claims.
Claims (10)
1. a kind of unit control system characterized by comprising central control equipment and controlled unit；The center control is set
Standby includes: main programmable logic controller (PLC) PLC and local signal collector；The controlled unit includes: generator set controller
With remote signal collector；
Main PLC is electrically connected with the local signal collector and the remote signal collector respectively, the local signal acquisition
Device and remote signal collector electrical connection；Wherein, the main PLC after connection, the local signal collector and described
Remote signal collector forms the first looped network；
The main PLC, for passing through the local signal collector in first looped network to the generator set controller
Send control instruction；Alternatively, by the remote signal collector in first looped network to the generator set controller
Send control instruction.
2. unit control system according to claim 1, which is characterized in that the controlled unit is two, described long-range
Signal picker includes: head end remote signal collector and tail end remote signal collector；
The main PLC is electrically connected with the local signal collector and the tail end remote signal collector respectively, the local
Signal picker and head end remote signal collector electrical connection；The main PLC, local signal acquisition after connection
Device, the head end remote signal collector and the tail end remote signal collector form the first looped network；
The main PLC, for passing through the local signal collector in first looped network to the generator set controller
Send control instruction；Alternatively, by the tail end remote signal collector in first looped network to the generating set control
Device processed sends control instruction.
3. unit control system according to claim 2, which is characterized in that the controlled unit be it is multiple, it is described long-range
Signal picker further includes at least one intermediate remote signal picker；
It is remote with the tail end that the head end remote signal collector passes sequentially through at least one described intermediate remote signal picker
The electrical connection of journey signal picker；The main PLC, the local signal collector, head end remote signal acquisition after connection
Device, at least one described intermediate remote signal picker and the tail end remote signal collector form the first looped network.
4. unit control system according to claim 1, which is characterized in that the central control equipment further includes spare
PLC；
The main PLC is also electrically connected with the spare PLC, and is connect by the spare PLC with the remote signal collector；
The main PLC, the spare PLC, the remote signal collector and the local signal collector form the first looped network.
5. unit control system according to claim 4, which is characterized in that the system also includes controlling terminals；It is described
Central control equipment further includes Ethernet switch；
The main PLC and the Ethernet exchanging mechatronics, and it is logical by the Ethernet switch and the controlling terminal
Letter connection；Main PLC and the controlling terminal after connection form the second looped network；Second looped network include the first communication link and
Second communication link；
The main PLC, for being communicated by first communication link with the controlling terminal；Alternatively, passing through described the
Two communication links are communicated with the controlling terminal.
6. unit control system according to claim 5, which is characterized in that the spare PLC and the Ethernet exchanging
Mechatronics, and communicated to connect by the Ethernet switch and the controlling terminal；Spare PLC and the control after connection
Terminal processed forms the second looped network；Second looped network includes the first communication link and the second communication link；
The spare PLC, for passing through first communication link and institute in the main PLC failure and after switching to new main PLC
Controlling terminal is stated to be communicated；Alternatively, being communicated by second communication link with the controlling terminal.
7. unit control system according to claim 5, which is characterized in that the controlled unit further includes generator；
The generator set controller and the power generation mechatronics, for according to the control instruction control received
Generator and the running state data for reading the generator；
The generator set controller is also communicated to connect with the Ethernet switch, and passes through the Ethernet switch and institute
It states main PLC to connect with the spare plc communication, so that the spare PLC after the main PLC or switching obtains the power generation
The running state data of the generator acquired in generator set controller.
8. unit control system according to claim 7, which is characterized in that the controlled unit further include: engine control
Device and engine processed；The engine controller starts mechatronics with described；
The engine controller also with the Ethernet switch communicate to connect, and by the Ethernet switch with it is described
Main PLC is connected with the spare plc communication, so that the spare PLC after the main PLC or switching obtains the engine
The running state data of the engine acquired in controller.
9. unit control system according to claim 1, which is characterized in that further include central control cabinet；
The central control equipment is located in the central control cabinet.
10. unit control system according to claim 1, which is characterized in that the quantity of the controlled unit is 1~16
It is a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920213711.5U CN209327811U (en) | 2019-02-19 | 2019-02-19 | A kind of unit control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920213711.5U CN209327811U (en) | 2019-02-19 | 2019-02-19 | A kind of unit control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669343A (en) * | 2019-02-19 | 2019-04-23 | 湖南力宇新能源科技有限公司 | A kind of unit control system |
| CN113985803A (en) * | 2021-10-28 | 2022-01-28 | 西安热工研究院有限公司 | Online monitoring data analysis cabinet for thermal power plant |
-
2019
- 2019-02-19 CN CN201920213711.5U patent/CN209327811U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669343A (en) * | 2019-02-19 | 2019-04-23 | 湖南力宇新能源科技有限公司 | A kind of unit control system |
| CN113985803A (en) * | 2021-10-28 | 2022-01-28 | 西安热工研究院有限公司 | Online monitoring data analysis cabinet for thermal power plant |
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