CN211319057U - Distributed control system for controlling operation of power plant equipment - Google Patents
Distributed control system for controlling operation of power plant equipment Download PDFInfo
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- CN211319057U CN211319057U CN202020256622.1U CN202020256622U CN211319057U CN 211319057 U CN211319057 U CN 211319057U CN 202020256622 U CN202020256622 U CN 202020256622U CN 211319057 U CN211319057 U CN 211319057U
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Abstract
The utility model provides a distributed control system of control power plant equipment operation, this distributed control system of control power plant equipment operation includes: the system comprises a first server, a second server, at least one first switch, at least one second switch, at least one power plant equipment controller and at least one user control terminal; the first server and the second server are both connected with at least one power plant equipment controller through at least one first switch and are both connected with at least one user control terminal through at least one second switch; the first server and the second server transmit control feedback signals between the power plant equipment controllers and the user control terminals through the first switches and the second switches; the first server sends the running state information to the second server, and the second server is started or stopped according to the running state information of the first server. This scheme can improve the reliability that distributed control system carries out control to each power plant in the power plant.
Description
Technical Field
The utility model relates to a computer technology field, in particular to distributed control system of control power plant equipment operation.
Background
A Distributed Control System (DCS) is a new-generation instrument Control System based on a microprocessor and adopting a design principle of decentralized Control function, centralized display operation, and consideration of both autonomous and comprehensive coordination. The distributed control system adopts the basic design concept of distributed control, centralized operation and centralized management, adopts a structural form of multilayer grading and cooperative autonomy, and is widely applied to a plurality of industries such as electric power, metallurgy, petrifaction and the like.
In the distributed control system for controlling the operation of the power plant equipment at present, one server is connected with a user control terminal and a power plant equipment controller through an exchanger, the power plant equipment controller can send collected state signals to the server through the exchanger, and then the server can forward the state signals to the user control terminal through the exchanger, and meanwhile, the user control terminal can also send user control instructions to the server through the exchanger, and then the server can forward the user control instructions to the power plant equipment controller through the exchanger.
Aiming at the current distributed control system for controlling the operation of power plant equipment, a server is used as a bridge for information interaction between a power plant equipment controller and a user control terminal, when the server fails and cannot normally operate, the user control terminal cannot acquire a state signal so that a user cannot master the operation state of the power plant equipment, and the power plant equipment controller cannot operate according to the requirements of the user due to the fact that the user control instruction cannot be acquired, so that the distributed control system is low in reliability for controlling each power plant equipment in a power plant.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses a solve above-mentioned and/or other technical problem and provide the distributed control system who controls power plant equipment operation, can improve the reliability that distributed control system carries out control to each power plant equipment in the power plant.
In a first aspect, an embodiment of the present invention provides a distributed control system for controlling operation of power plant equipment, including: the system comprises a first server, a second server, at least one first switch, at least one second switch, at least one power plant equipment controller and at least one user control terminal;
the first server is connected with the at least one power plant equipment controller through the at least one first switch, and the first server is connected with the at least one user control terminal through the at least one second switch, wherein each power plant equipment controller is connected with the at least one first switch, and each user control terminal is connected with the at least one second switch;
the second server is connected with the at least one power plant equipment controller through the at least one first switch, and the second server is connected with the at least one user control terminal through the at least one second switch;
the first server forwards a control feedback signal between the at least one power plant equipment controller and the at least one user control terminal through the at least one first switch and the at least one second switch;
the second server forwards a control feedback signal between the at least one power plant equipment controller and the at least one user control terminal through the at least one first switch and the at least one second switch;
the first server is connected with the second server, the first server sends the running state information of the first server to the second server, and the second server is started or stopped according to the running state information of the first server.
In a first possible implementation manner, with reference to the first aspect, the operation state information of the first server is information in a form of a digital signal;
when the running state information of the first server is 1, the first server is characterized to be failed, and the second server is started according to the running state information of the first server;
and when the running state information of the first server is 0, the first server is represented to work normally, and the second server is stopped according to the running state information of the first server.
In a second possible implementation manner, with reference to the first aspect, the number of the first switches is at least two, and the number of the second switches is at least two;
the first switches are sequentially connected to form a first switch network chain, and the first server and the second server are respectively connected to two ends of the first switch network chain;
each second switch links to each other in proper order and constitutes the second switch net chain, just first server with the second server is connected respectively the both ends of second switch net chain.
In a third possible implementation manner, in combination with the second possible implementation manner, each of the power plant equipment controllers is connected to at least two different first switches.
In a fourth possible implementation manner, with reference to the second possible implementation manner, each of the ue is connected to at least two different second switches.
In a fifth possible implementation manner, with reference to the first aspect and any one of the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, and the fourth possible implementation manner of the first aspect, the power plant equipment controller includes: a central processing unit, a power supply and a network card;
the power supply is respectively connected with the central processing unit and the network card, the central processing unit is connected with the network card, and the network card is connected with at least one first switch;
the power supply is used for supplying power to the central processing unit and the network card;
the network card is used for sending the uplink data from the central processing unit to the connected first switch and sending the downlink data from the connected first switch to the central processing unit.
In a sixth possible implementation manner, with reference to the first aspect and any one of the first possible implementation manner, the second possible implementation manner, the third possible implementation manner, and the fourth possible implementation manner of the first aspect, the at least one user control terminal includes any one or more of an operator station, a history station, and an engineer station.
In a seventh possible implementation manner, with reference to the first aspect and any one of the first possible implementation manner, the second possible implementation manner, the third possible implementation manner and the fourth possible implementation manner of the first aspect, the number of the power plant equipment controllers is at least two;
each power plant equipment controller is connected with at least one other power plant equipment controller, and the at least two power plant equipment controllers that are connected are in redundant operating condition.
According to the technical scheme, the first server and the second server are connected with at least one power plant equipment controller through at least one first switch and connected with at least one user control terminal through at least one second switch, so that the first server and the second server can forward control feedback signals between each power plant equipment controller and each user control terminal through each first switch and each second switch, the first server is connected with the second server, the first server sends operation state information of the first server to the second server, and the second server is started or stopped according to the operation state information of the first server. When the first server breaks down, the second server is started according to the running state information of the first server, control feedback signals between each power plant equipment controller and each user control terminal are forwarded through each first switch and each second switch, the distributed control system is guaranteed to be capable of normally controlling each power plant equipment, and therefore the reliability of the distributed control system in controlling each power plant equipment in the power plant can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a distributed control system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of another distributed control system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a power plant controller according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another distributed control system according to an embodiment of the present invention.
List of reference numerals:
10: the first server 20: the second server 30: first switch
40: the second switch 50: power plant controller 60: user control terminal
501: the central processing unit 502: power source 503: network card
Detailed Description
As mentioned before, in the distributed control system for controlling the operation of the power plant equipment at present, a server, a user control terminal and a power plant equipment controller are all connected with a switch, the power plant equipment controller can send collected state signals to the server through the switch, and then the server forwards the state signals to the user control terminal through the switch, and simultaneously the user control terminal can send user control instructions to the server through the switch, and then the server can forward the user control instructions to the power plant equipment controller through the switch, thereby realizing the normal operation of each power plant equipment in the distributed control system control power plant. Therefore, the server is a bridge for information interaction between the power plant equipment controller and the user control terminal, if the server fails and cannot normally operate, the power plant equipment controller cannot transmit the state signal to the user control terminal, and the user control terminal cannot transmit the user control command to the power plant equipment controller, so that the distributed control system cannot control normal operation of each power plant equipment in the power plant, namely, the distributed control system has lower reliability in controlling the power plant equipment in the power plant.
The embodiment of the utility model provides an in, first server is connected with at least one power plant equipment controller through at least one first switch to be connected with at least one user control terminal through at least one second switch, the second server is used for at least one power plant equipment controller to be connected through at least one first switch, and be connected with at least one user control terminal through at least one second switch, first server and second server all forward the control feedback signal between each power plant equipment controller and each user control terminal through each first switch and each second switch. The first server is connected with the second server, the first server sends the running state information of the first server to the second server, and the second server is started or stopped according to the running state information of the first server, namely when the first server fails and cannot run normally, information interaction can be carried out between each power plant equipment controller and each user control terminal through the second server, so that after one of the first server and the second server fails, the distributed control system can still control each power plant equipment in the power plant to run normally, and the reliability of the distributed control system in controlling the power plant equipment is improved.
The distributed control system for controlling the operation of the power plant equipment provided by the embodiment of the present invention is described in detail with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the utility model provides a distributed control system for controlling operation of power plant equipment, include: a first server 10, a second server 20, at least one first exchange 30, at least one second exchange 40, at least one power plant controller 50 and at least one user control terminal 60;
the first server 10 is connected to at least one power plant controller 50 via at least one first switch 30, and the first server 10 is connected to at least one customer control terminal 60 via at least one second switch 40, wherein each power plant controller 50 is connected to at least one first switch 30, and each customer control terminal 60 is connected to at least one second switch 40;
the second server 20 is connected to at least one power plant controller 50 via at least one first switch 30, and the second server 20 is connected to at least one user control terminal 60 via at least one second switch 40;
the first server 10 forwards control feedback signals between the at least one power plant controller 50 and the at least one user control terminal 60 via the at least one first switch 30 and the at least one second switch 40;
the second server 20 forwards control feedback signals between the at least one power plant controller 50 and the at least one user control terminal 60 via the at least one first switch 30 and the at least one second switch 40;
the first server 10 is connected with the second server 20, the first server 10 sends the running state information of the first server 10 to the second server 20, and the second server 20 is activated or deactivated according to the running state information of the first server 10.
In the embodiment of the present invention, the first server 10 and the second server 20 are connected to at least one power plant controller 50 through at least one first switch 30 and connected to at least one user control terminal 60 through at least one second switch 40, so that the first server 10 and the second server 20 can forward the control feedback signal between each power plant controller 50 and each user control terminal 60 through each first switch 30 and each second switch 40, and the first server 10 is connected to the second server 20, the first server 10 sends the operating status information thereof to the second server 20, and the second server 20 is started or stopped according to the operating status information of the first server 10. When the first server 10 fails, the second server 20 is started according to the running state information of the first server 10, and control feedback signals between each power plant controller 50 and each user control terminal 60 are forwarded through each first switch 30 and each second switch 40, so that the distributed control system can normally control each power plant, and the reliability of the distributed control system in controlling each power plant in the power plant can be improved.
The embodiment of the utility model provides an in, distributed control system is used for controlling the power plant, and power plant equipment controller 50 is arranged in gathering power plant equipment's in the power plant running state information to can control power plant equipment according to the user control instruction that comes from user control terminal 60, user control terminal 60 is used for generating user control instruction according to user's operation, and can demonstrate and handle the running state information that comes from power plant equipment controller 50.
Alternatively, on the basis of the distributed control system for controlling the operation of the power plant shown in fig. 1, the connection between the first server 10 and the second server 20 may be implemented by a logic circuit, that is, the first server 10 may send the operation state information in the form of digital signals to the second server 20, and the operation state information sent by the first server 10 is used to indicate whether the first server 10 is operating normally. When the running state information of the first server 10 is 1, it represents that the first server 10 fails, and the second server 20 is enabled according to the running state information of the first server 10; when the operation state information of the first server 10 is 0, it indicates that the first server 10 is operating normally, and the second server 20 is in a deactivated state according to the operation state information of the first server 10.
Alternatively, on the basis of the distributed control system for controlling the operation of the power plant shown in fig. 1, the first server 10 needs to be connected to the second switch 40 in addition to the first switch 30, and the second server 20 needs to be connected to the first switch 30 in addition to the second switch 40, for this purpose, the first server 10, the second server 20, each first switch 30 and each second switch 40 may form a ring network, so as to implement the connection between the first server 10 and the second server 20 and the first switch 30 and the second switch 40.
As shown in fig. 2, the number of the first switches 30 and the number of the second switches 40 in the distributed control system for controlling the operation of the power plant equipment are at least two, the first switches 30 are sequentially connected to form a first switch network chain, the first servers 10 and the second servers 20 are respectively connected to two ends of the first switch network chain, the second switches 40 are sequentially connected to form a second switch network chain, and the first servers 10 and the second servers 20 are respectively connected to two ends of the second switch network chain.
In the embodiment of the present invention, each of the first switches 30 is connected in sequence to form a first switch network chain, each of the second switches 40 is connected in sequence to form a second switch network chain, both ends of the first switch network chain and the second switch network chain are respectively connected to the first server 10 and the second server 20, the power plant controller 50 connected to the first switch 30 can send status information to the first server 10 or the second server 20 along the first switch network chain, the user control terminal 60 connected to the second switch 40 can send status information to the first server 10 or the second server 20 along the second switch network chain, each of the power plant controllers 50 is connected to both the first server 10 and the second server 20, and each of the user control terminals 60 is connected to both the second server 20 and the first server 10, therefore, when the first server 10 or the second server 20 fails and cannot normally operate, the information interaction between each power plant equipment controller 50 and each user control terminal 60 can still be normally performed, and the reliability of the distributed control system for controlling each power plant equipment in the power plant is ensured.
In the embodiment of the present invention, the first server 10 includes two at least two network interfaces, one of the network interfaces is connected to the first end of the first switch network link, and the other network interface is connected to the first end of the second switch network link. The second server 20 also includes at least two network interfaces, one of which is connected to the second end of the first switch network link and the other of which is connected to the second end of the second switch network link.
Since the plurality of first switches 30 are sequentially connected to form the first switch network chain, the first end and the second end of the first switch network chain respectively refer to the two first switches 30 located at the two ends of the first switch network chain. Since the plurality of second switches 40 are sequentially connected to form the second switch network chain, the first segment and the second end of the second switch network chain respectively refer to the two second switches 30 located at the two ends of the second switch network chain.
In the embodiment of the present invention, as shown in fig. 2, each first switch 30 is connected in sequence to form a first switch network chain, and two first switches 30 located at two ends of the first switch network chain can be connected on this basis to form a ring network chain formed by each first switch 30. Correspondingly, the second switches 40 are connected in sequence to form a second switch network chain, and on this basis, two second switches 40 at two ends of the second switch network chain can be connected to form a ring network chain formed by the second switches 40.
The first switches 30 are sequentially connected end to form a ring network chain, when a communication line between any two connected first switches 30 is disconnected, the two first switches 30 can also communicate through other first switches 30, and the reliability of data transmission between the power plant equipment controller 50 and the first server 10 and the second server 20 is further ensured.
The first second switches 40 are sequentially connected to form a ring network chain, when the communication line between any two connected second switches 40 is disconnected, the two second switches 40 can also communicate through other second switches 40, and the reliability of data transmission between the user control terminal 60 and the first server 10 and the second server 20 is further ensured.
In the embodiment of the present invention, the first switch 30 and the second switch 40 can be connected by optical fiber, and the first switch 30 and the first server 10, the first switch 30 and the second server 20, the second switch 40 and the first server 10, and the second switch 40 and the second server 20 can be connected by network cables.
Alternatively, each power plant controller 50 is connected to at least two different first exchanges 30 on the basis of a distributed control system for controlling the operation of the power plants as shown in fig. 2.
In an embodiment of the present invention, for each power plant equipment controller 50 included in the distributed control system for controlling the operation of the power plant equipment, the power plant equipment controller 50 is connected to at least two different first switches 30, and when one of the first switches 30 connected to the power plant equipment controller 50 fails and cannot operate normally, the power plant equipment controller 50 may also communicate with the first server 10 or the second server 20 through the other first switches 30 connected to the power plant equipment controller and capable of operating normally.
The embodiment of the utility model provides an in, make each power plant equipment controller 50 connect two at least first switches 30, when some first switches 30 break down, power plant equipment controller 50 can also communicate with first server 10 or second server 20 through being connected and can normal operation's first switch 30, reduce the probability that takes place communication interrupt between power plant equipment controller 50 and first server 10 or second server 20, guarantee that power plant equipment controller 50 can normally send the running state information of power plant equipment and normally control power plant equipment, thereby can further improve the reliability that distributed control system carries out control to each power plant equipment in the power plant.
In an embodiment of the present invention, each first switch 30 may be connected to one or more power plant controllers 50.
Alternatively, each subscriber control terminal 60 is connected to at least two different second exchanges 40 on the basis of a distributed control system for controlling the operation of the power plant as shown in fig. 2.
In the embodiment of the present invention, for each user control terminal 60 included in the distributed control system for controlling the operation of the power plant equipment, the user control terminal 60 is connected to at least two different second switches 40, and when one of the second switches 40 connected to the user control terminal 60 fails and cannot work normally, the user control terminal 60 can also communicate with the first server 10 or the second server 20 through the other second switches 40 connected to the user control terminal and capable of working normally.
The embodiment of the utility model provides an in, make each user control terminal 60 connect two at least second switches 40, when some second switches 40 broke down, user control terminal 60 can also communicate with first server 10 or second server 20 through being connected and second switch 40 that can normal operating, reduce the probability that takes place communication interrupt between user control terminal 60 and first server 10 or second server 20, guarantee that user control terminal 60 can normally control each power plant equipment, thereby can further improve the reliability that distributed control system carries out control to each power plant equipment in the power plant.
Optionally, on the basis of the distributed control system for controlling the operation of the power plant shown in fig. 1 or fig. 2, as shown in fig. 3, the power plant controller 50 includes a central processor 501, a power supply 502 and a network card 503, the power supply 502 is respectively connected to the central processor 501 and the network card 503, and the network card 503 is connected to at least one first switch 30. The power supply 502 is used for supplying power to the central processor 501 and the network card 503. The network card 503 is configured to send the uplink data from the central processing unit 501 to a connected first switch 30, and send the downlink data from the connected first switch 30 to the central processing unit 501.
The embodiment of the utility model provides an in, central processing unit 501 is responsible for gathering power plant's running state information and controlling power plant's operation process as power plant controller 50's core. The power supply 502 is responsible for supplying power to the central processing unit 501 and the network card 503, for example, 5V and 24V dc power is supplied to the central processing unit 501 and the network card 503, so as to ensure that the central processing unit 501 and the network card 503 can reliably and stably operate. The network card 503 is connected to the central processing unit 501, and is connected to one or more first switches 30 through one or more network interfaces, on one hand, the network card is responsible for sending data sent by the central processing unit 501 to the corresponding first switch 30, and on the other hand, the network card is responsible for sending data from the connected first switch 30 to the central processing unit 501.
In the embodiment of the present invention, the central processing unit 501, the power supply 502 and the network card 503 are modular components, and the three can be arranged side by side, for example, the central processing unit 501 is located between the power supply 502 and the network card 503, the power supply 502 is located the left side of the central processing unit 501 and the network card 503 is located the right side of the central processing unit 501.
In an embodiment of the present invention, the power plant controller 50 may be a Siemens company model number S7-410 power plant controller assembly.
Alternatively, on the basis of the distributed control system for controlling the operation of the power plant equipment shown in fig. 1 or 2, the at least one user control terminal 60 included in the distributed control system for controlling the operation of the power plant equipment may include any one or more of an operator station, a history station, and an engineer station.
The embodiment of the utility model provides an in, the operator station is used for supplying operating personnel to look over power plant's equipment running state information, send user control instruction etc. to power plant's equipment controller 50, and the historical station is used for saving power plant's equipment historical running state information and historical user control instruction, and the engineer station is used for supplying the engineer to maintain whole distributed control system's operation logic. The operator station, the history station and the engineer station are used as the user control terminal 60 to access the distributed control system, so that the normal operation of the operator station, the history station and the engineer station can be ensured, and the stability and the reliability of the operation of the distributed control system are ensured.
Alternatively, on the basis of the distributed control system for controlling the operation of the power plant shown in fig. 1 or fig. 2, as shown in fig. 4, the number of the power plant controllers 50 in the distributed control system for controlling the operation of the power plant is at least two, each power plant controller 50 is connected with at least one other power plant controller 50, and the connected at least two power plant controllers 50 are in a redundant working state.
The embodiment of the utility model provides an in, the power plant equipment controller 50 among the distributed control system of control power plant equipment operation is used for controlling the power plant equipment operation, and power plant equipment's control logic is divided into a plurality of logic blocks, and different logic blocks are controlled by different power plant equipment controllers 50 usually. Each power plant equipment controller 50 is connected with other power plant equipment controllers 50 which are in mutual redundant work, the two connected power plant equipment controllers 50 are responsible for controlling the same logic block, when one power plant equipment controller 50 of the two connected power plant equipment controllers 50 breaks down and cannot normally operate, the other power plant equipment controller 50 which can normally operate can also normally control the logic block, the probability of occurrence of uncontrollable events of the logic block is reduced, normal operation of the control logic of the distributed control system is guaranteed, and the reliability of controlling each power plant equipment in the power plant by the distributed control system is further improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Finally, it is to be noted that: the above description is only the preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention is included in the protection scope of the present invention.
Claims (8)
1. Distributed control system for controlling the operation of power plant equipment, the distributed control system comprising: a first server (10), a second server (20), at least one first exchange (30), at least one second exchange (40), at least one power plant controller (50) and at least one user control terminal (60);
the first server (10) is connected to the at least one power plant controller (50) via the at least one first switch (30), and the first server (10) is connected to the at least one customer control terminal (60) via the at least one second switch (40), wherein each power plant controller (50) is connected to the at least one first switch (30) and each customer control terminal (60) is connected to the at least one second switch (40);
the second server (20) is connected to the at least one power plant controller (50) via the at least one first switch (30), and the second server (20) is connected to the at least one user control terminal (60) via the at least one second switch (40);
the first server (10) forwards control feedback signals between the at least one power plant controller (50) and the at least one user control terminal (60) via the at least one first switch (30) and the at least one second switch (40);
the second server (20) forwards control feedback signals between the at least one power plant controller (50) and the at least one user control terminal (60) via the at least one first switch (30) and the at least one second switch (40);
the first server (10) is connected with the second server (20), the first server (10) sends the running state information of the first server (10) to the second server (20), and the second server (20) is started or stopped according to the running state information of the first server (10).
2. A distributed control system for controlling operation of power plant equipment according to claim 1,
the running state information of the first server (10) is information in a digital signal form;
when the running state information of the first server (10) is 1, the first server (10) is characterized to be failed, and the second server (20) is started according to the running state information of the first server (10);
when the running state information of the first server (10) is 0, the first server (10) is represented to work normally, and the second server (20) is stopped according to the running state information of the first server (10).
3. A distributed control system for controlling operation of power plant equipment according to claim 1,
the number of the first switches (30) is at least two and the number of the second switches (40) is at least two;
the first switches (30) are sequentially connected to form a first switch network chain, and the first server (10) and the second server (20) are respectively connected to two ends of the first switch network chain;
each second switch (40) is connected in turn to form a second switch network chain, and the first server (10) and the second server (20) are connected at two ends of the second switch network chain respectively.
4. A distributed control system for controlling operation of power plant equipment according to claim 3,
each of the power plant controllers (50) is connected to at least two different first exchanges (30).
5. A distributed control system for controlling operation of power plant equipment according to claim 3,
each of said subscriber control terminals (60) is connected to at least two different ones of said second exchanges (40).
6. A distributed control system for controlling operation of power plants according to any of claims 1 to 5,
the power plant equipment controller (50) comprises: the system comprises a central processing unit (501), a power supply (502) and a network card (503);
the power supply (502) is respectively connected with the central processing unit (501) and the network card (503), the central processing unit (501) is connected with the network card (503), and the network card (503) is connected with at least one first switch (30);
the power supply (502) is used for supplying power to the central processing unit (501) and the network card (503);
the network card (503) is configured to send the uplink data from the central processing unit (501) to the connected first switch (30), and send the downlink data from the connected first switch (30) to the central processing unit (501).
7. A distributed control system for controlling operation of power plants according to any of claims 1 to 5,
the at least one user control terminal (60) comprises any one or more of an operator station, a historian station, and an engineer station.
8. A distributed control system for controlling operation of power plants according to any of claims 1 to 5,
the number of the power plant controllers (50) is at least two;
each power plant controller (50) is connected with at least one other power plant controller (50), and at least two power plant controllers (50) connected are in a redundant working state.
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| CN202020256622.1U CN211319057U (en) | 2020-03-04 | 2020-03-04 | Distributed control system for controlling operation of power plant equipment |
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| CN (1) | CN211319057U (en) |
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2020
- 2020-03-04 CN CN202020256622.1U patent/CN211319057U/en active Active
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Address after: 211100 No.37 Yihuai street, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee after: Siemens Energy Automation (Nanjing) Co.,Ltd. Address before: 211100 No.37 Yihuai street, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: SIEMENS POWER PLANT AUTOMATION Ltd. |