CN112859798A - Management and control integrated system based on intelligent controller - Google Patents
Management and control integrated system based on intelligent controller Download PDFInfo
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- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
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- G05B2219/00—Program-control systems
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention relates to a management and control integrated system based on an intelligent controller, which comprises: the system comprises a unit decentralized control system, a management information system and a public and auxiliary decentralized control system; the unit distributed control system comprises a DCS cabinet, an intelligent DCS cabinet and a DCS network switch. The invention has the beneficial effects that: the intelligent controller with various built-in complex algorithm functional modules is adopted, so that the intelligentization of the DCS is greatly enhanced; the externally-hung optimization module independent of the DCS system and the SIS system can be directly arranged in the intelligent controller; a pure SIS system is cancelled, the software and hardware configuration of a management information system is unchanged, a control system and an information management system are simplified, a network framework is simpler and clearer, and the network safety is enhanced; and a one-way isolation network gate is arranged between the unit decentralized control system and the management information system to realize physical isolation.
Description
Technical Field
The invention belongs to the technical field of large-scale power plant information systems, and particularly relates to a management and control integrated system based on an intelligent controller.
Background
The large-scale power plant is taken as a specific enterprise group, and an information system is divided into two layers: the first layer is an instrument and control system, all instruments directly participating in the measurement and control of the production process and a Distributed Control System (DCS); the second layer is a supervisory system, which is an automatic system of the power plant related to information and not directly used for production control, and mainly comprises a plant-level monitoring information system SIS, a plant-level management information system MIS and the like.
At present, the functions of the control and information system of the large power plant are mainly realized in the following ways:
1) the distributed control system DCS mainly completes the protection, control, interlocking and monitoring functions in the production process; the unit performance calculation, the operation index statistics/analysis/assessment module, the real-time early warning, various optimizations and the like are mainly completed on a plant-level monitoring information system SIS, and the various optimizations are externally hung on the SIS in an independent small system form; the MIS independently performs functions related to the management information system.
2) The distributed control system DCS mainly completes the protection, control, interlocking and monitoring functions of the production process, and various optimizations such as soot blowing optimization and combustion optimization are provided with independent workstations on the DCS; the unit performance calculation, the operation index statistics/analysis/assessment module, the real-time early warning and the like are mainly completed on a plant-level monitoring information system SIS; the MIS independently performs the functions associated with managing the information system.
3) The distributed control system DCS mainly completes the protection, control, interlocking and monitoring functions of the production process, the unit performance calculation and optimization control module is realized in the SIS, the operation index statistics/analysis/assessment module, the real-time early warning and the like are moved upwards to the MIS, namely, part of the operation index statistics/analysis/assessment module and the real-time early warning and the like realize the integration of the SIS and the MIS
According to the related requirements of the current information safety, a power special unidirectional safety isolation device which is detected and authenticated by a national specified department must be arranged between a production control area and a management information area, and the isolation strength is close to or reaches physical isolation. The problems caused by the system classification and partition are as follows:
1) the operators of the information management system generally do not know the process flow and the process control of the power plant, and the phenomenon of external management and internal management frequently occurs, so that the production operation is not smooth.
2) The SIS system is an open-loop system, can form a closed loop only through effective intervention of professionals, generates benefits, and cannot directly realize energy conservation and emission reduction of a unit according to data analysis and operation optimization conclusions.
3) The mode of the monitoring system in the production process is non-real-time, and related personnel are organized to research and provide a solution according to information with long discontinuity, incomplete deformity and even misleading, and guide a front-line monitoring personnel to carry out online processing or shutdown maintenance, so that the efficiency is low, and even the problem can not be solved completely.
In conclusion, the existing information system has the defects of non-closed loop of information flow, disjointed real-time production control and management, interference of information management personnel and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a management and control integrated system based on an intelligent controller.
The management and control integrated system based on the intelligent controller comprises: a unit decentralized control system, a Management Information System (MIS) and a public and auxiliary decentralized control system; the unit distributed control system comprises a DCS cabinet, an intelligent DCS cabinet and a DCS network switch; the Management Information System (MIS) comprises an MIS network switch, a network firewall, a real-time database server, an application database server, a relational database server and other servers;
a one-way isolation network gate is arranged between the unit distributed control system and the management information system, and the unit distributed control system is connected with the management information system through the one-way isolation network gate; a network firewall is arranged between the management information system and the upper network, and the Management Information System (MIS) is connected with the upper network (Internet) through the network firewall;
the intelligent DCS comprises an intelligent DCS cabinet, a control system and a control system, wherein the intelligent DCS cabinet is provided with an intelligent controller, the intelligent controller is provided with a functional module and an optimization module, and the intelligent controller is used for finishing unit optimization control, and finishing advanced algorithms including fuzzy control and neural network control, such as combustion optimization, soot blowing optimization, unit depth peak regulation, performance calculation and the like; the optimization module in the controller can be directly called to carry out optimization control according to the unit type, and the optimization effect can directly act on the production process; an expert system is arranged in a functional module of the intelligent controller, machine learning and data mining can be completed, optimal operation of a unit is realized, and an optimal operation mode is sought; the functional module can carry out statistics according to the rules of time and the like according to the parameters of different working conditions, and finally obtains an optimization conclusion according to the power grid load instruction, the unit output and the like and the expert criterion;
the Management Information System (MIS) is provided with an extension module which is internally provided with extension software.
Preferably, a Data Acquisition System (DAS), an analog quantity control system (MCS), a Sequence Control System (SCS), a furnace safety monitoring system (FSSS) and a controller are arranged on the DCS cabinet; the controller is electrically connected with a Data Acquisition System (DAS), an analog quantity control system (MCS), a Sequence Control System (SCS) and a hearth safety monitoring system (FSSS); and the controller on the DCS cabinet and the intelligent controller on the intelligent DCS cabinet are connected to the DCS network switch through redundant interfaces. A
Preferably, an intelligent controller in the management information system is internally provided with a control optimization functional module and an advanced algorithm (including complex algorithms such as a neural network algorithm, a wavelet transformation algorithm, a fuzzy control algorithm and the like) and can be optimized and upgraded according to the engineering operation requirement; the real-time database server, the application database server, the relational database server and other servers are all hung to the MIS network switch to realize data exchange and storage.
Preferably, the intelligent DCS cabinet is further provided with a communication module, a power supply module and various clamping pieces.
Preferably, the functional modules on the intelligent controller comprise a calculation module and a control module, various control algorithms can be realized through configuration, and the calculation module is used for replacing the performance calculation and monitoring algorithm of the original SIS system, so that the hardware investment and the software investment of the SIS are reduced.
Preferably, the expansion software in the expansion module on the Management Information System (MIS) is used for expanding the statistical capability and the analysis capability of the Management Information System (MIS), the information management system integrating the SIS system and the Management Information System (MIS) does not participate in the production process any more, and only the data is read in one direction from the production process, so that the network security is enhanced; an SIS system is eliminated, and a network structure is simplified; and the SIS software and hardware investment is reduced.
Preferably, the internal configuration and component connections of the utility and auxiliary distributed control systems are the same as those of the unit distributed control system.
The invention has the beneficial effects that:
compared with the traditional power plant control and supervision system, the intelligent power plant control and supervision system adopts the intelligent controller with various built-in complex algorithm functional modules. Besides conventional PID control, the intelligent controller is internally provided with various optimization algorithm modules, and realizes operation optimization through machine learning, data analysis and mining functions. The optimization algorithm can be realized, the optimization control is realized at a production control layer through machine learning and big data mining, and the intellectualization of the DCS is greatly enhanced.
The externally-hung optimization module independent of the DCS system and the SIS system can be directly arranged in the intelligent controller; according to the unit type, the optimization control related to the production process is realized in an optimization module of an intelligent controller, and the optimization effect can be directly acted on the production process; all the information of the production process is stored and transmitted on a unified control platform of the intelligent controller-based control integrated system to form closed-loop control; and the real-time production process data is transmitted to MIS in a one-way mode through safety measures such as physical isolation and the like, so that the supervision requirement of a management information system is met, and the safety and the economical efficiency of the operation of a power plant are improved. The DCS does not have external non-DCS manufacturer equipment, all signals related to the production process are only transmitted in the DCS network, signal processing is realized in the DCS controller, and the signal safety and stability are guaranteed; the optimization effect of the SIS does not need manual intervention, and the SIS directly acts on the production process after passing through a calculation module and optimization control;
the invention realizes the safety management and data safety protection of terminal equipment at the side of a machine group Distributed Control System (DCS), cancels a pure SIS system, has unchanged software and hardware configuration of a Management Information System (MIS), carries out function development on original software, simplifies a control system and an information management system, makes a network framework simpler and clearer and enhances the network safety; a one-way isolation network gate is arranged between a unit Distributed Control System (DCS) and a Management Information System (MIS) to realize physical isolation. Downloading functions such as control optimization logic, performance calculation and the like related to the production process in the SIS system to a unit decentralized control system; report and assessment functions related to management are moved up to a Management Information System (MIS), and hardware configuration of the management and control system is simplified; real-time data in the production process is transmitted to a Management Information System (MIS) by a Distributed Control System (DCS), the Management Information System (MIS) completes functions of data reporting, index statistics, function check, real-time early warning and the like, and data communication and safety protection with a group information center are realized.
Drawings
Fig. 1 is an architecture diagram of an intelligent controller-based management and control integrated system according to the present invention.
Description of reference numerals: the intelligent distributed control system comprises a DCS cabinet 1, an intelligent DCS cabinet 2, a DCS network switch 3, a one-way isolation network gate 4, an MIS network switch 5, a network firewall 6, a real-time database server 7, an application database server 8, a relational database server 9, other servers 10, a unit distributed control system 11 and a public and auxiliary distributed control system 12.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for a person skilled in the art, several modifications can be made to the invention without departing from the principle of the invention, and these modifications and modifications also fall within the protection scope of the claims of the present invention.
The invention provides a management and control integrated system based on an intelligent controller, aiming at solving the defects of non-closed loop of information flow, disjointed real-time production control and management, dependence on intervention of information management personnel and the like in the existing information system.
Example 1:
as shown in fig. 1, an integrated management and control system based on an intelligent controller includes: a unit distributed control system 11, a Management Information System (MIS) and a public and auxiliary distributed control system 12; the unit distributed control system 11 comprises a DCS cabinet 1, an intelligent DCS cabinet 2 and a DCS network switch 3; the Management Information System (MIS) includes a MIS network switch 5, a network firewall 6, a real-time database server 7, an application database server 8, a relational database server 9, and other servers 10;
a one-way isolation network gate 4 is arranged between the unit decentralized control system 11 and the management information system, and the unit decentralized control system 11 is connected with the management information system through the one-way isolation network gate 4; a network firewall 6 is arranged between the management information system and the upper network, and the Management Information System (MIS) is connected with the upper network (Internet) through the network firewall 6;
the intelligent DCS cabinet 2 is provided with an intelligent controller, the intelligent controller is provided with a functional module and an optimization module, and the intelligent controller is used for finishing unit optimization control, and finishing advanced algorithms including fuzzy control and neural network control, such as combustion optimization, soot blowing optimization, unit depth peak regulation, performance calculation and the like; the optimization module in the controller can be directly called to carry out optimization control according to the unit type, and the optimization effect can directly act on the production process; an expert system is arranged in a functional module of the intelligent controller, machine learning and data mining can be completed, optimal operation of a unit is realized, and an optimal operation mode is sought; the functional module can carry out statistics according to the rules of time and the like according to the parameters of different working conditions, and finally obtains an optimization conclusion according to the power grid load instruction, the unit output and the like and the expert criterion;
the Management Information System (MIS) is provided with an extension module which is internally provided with extension software.
The DCS cabinet 1 is provided with a Data Acquisition System (DAS), an analog quantity control system (MCS), a Sequence Control System (SCS), a hearth safety monitoring system (FSSS) and a controller; the controller is electrically connected with a Data Acquisition System (DAS), an analog quantity control system (MCS), a Sequence Control System (SCS) and a hearth safety monitoring system (FSSS); the controller on the DCS cabinet 1 and the intelligent controller on the intelligent DCS cabinet 2 are connected to the DCS network switch 3 through redundant interfaces. A
An intelligent controller in the management information system is internally provided with a control optimization functional module and an advanced algorithm (including complex algorithms such as a neural network algorithm, a wavelet transform algorithm, a fuzzy control algorithm and the like) and can be optimized and upgraded according to the engineering operation requirement; the real-time database server 7, the application database server 8, the relational database server 9 and other servers 10 are all hung to the MIS network switch 5 to realize data exchange and storage.
The intelligent DCS cabinet 2 is also provided with a communication module, a power module and various clamping pieces.
The function module on the intelligent controller comprises a calculation module and a control module, various control algorithms can be realized through configuration, and the calculation module is used for replacing the performance calculation and monitoring algorithm of the original SIS system, so that the hardware investment and the software investment of the SIS are reduced.
The expansion software in the expansion module on the Management Information System (MIS) is used for expanding the statistical capability and the analysis capability of the Management Information System (MIS), the SIS system and the Management Information System (MIS) integrated information management system does not participate in the production process any more, only data are read in one direction from the production process, and the network security is enhanced; an SIS system is eliminated, and a network structure is simplified; and the SIS software and hardware investment is reduced.
The internal configuration and the component connection of the common and auxiliary distributed control system 12 are the same as those of the unit distributed control system 11.
Example 2:
in a newly built 2X 1000MW ultra-supercritical coal-fired unit of a power plant, two sets of unit units control a network DCS, one set of auxiliary system monitors the network DCS, one set of plant-level monitoring system SIS invests about 400 ten thousand yuan, and the other set of complete management information system MIS is configured.
The DCS hardware equipment comprises a controller, a server, an operator station, an engineer station, a switch, various cards and the like, the main hardware equipment of the SIS system comprises a data acquisition machine, a database server, a storage device, a core switch, a hardware firewall, a workstation, a long-term station, a client and the like, and the main software comprises real-time/historical database software, SIS application software, a comprehensive report module, secondary development tool software, an intrusion detection system and the like.
If a control integrated system based on intelligent controllers is adopted, 2-3 pairs of redundant intelligent controllers can be selected for the DCS system of the unit set, and conventional controllers are selected for other controllers, so that the cost for purchasing the DCS intelligent controllers and the expansion of software functions are increased, and the cost is increased by about 80-120 ten thousand yuan; the MIS system needs to increase about 140 ten thousand yuan for increasing the functions of part of the SIS system, purchasing of added databases, application software and the like and expanding of software functions; the elimination of the SIS system saves 400 ten thousand yuan, and the comprehensive investment can be saved by at least 140 ten thousand yuan.
The embodiment has the greatest advantages that the intelligent controller with various built-in optimized operation calculation modules is adopted, and the optimization effect is directly acted on the production process through the corresponding controller, so that the function of a control system is enhanced, and the operation economy, safety and stability of the generator set are improved; meanwhile, the network architecture of the large power plant information system is greatly simplified, the network is simpler and clearer, and various system plug-in modules are eliminated, so that the network security is practically ensured.
Claims (7)
1. The utility model provides a management and control integration system based on intelligent controller which characterized in that includes: a unit decentralized control system (11), a management information system and a public and auxiliary decentralized control system (12); the unit distributed control system (11) comprises a DCS cabinet (1), an intelligent DCS cabinet (2) and a DCS network switch (3); the management information system comprises an MIS network switch (5), a network firewall (6), a real-time database server (7), an application database server (8), a relational database server (9) and other servers (10);
a unidirectional isolation network gate (4) is arranged between the unit decentralized control system (11) and the management information system, and the unit decentralized control system (11) is connected with the management information system through the unidirectional isolation network gate (4); a network firewall (6) is arranged between the management information system and the upper network, and the management information system is connected with the upper network through the network firewall (6);
an intelligent controller is arranged on the intelligent DCS cabinet (2), a functional module and an optimization module are arranged on the intelligent controller, and an expert system is arranged in the functional module of the intelligent controller;
the management information system is provided with an extension module, and extension software is arranged in the extension module.
2. The intelligent controller-based management and control integrated system according to claim 1, wherein: a data acquisition system, an analog quantity control system, a sequence control system, a furnace chamber safety monitoring system and a controller are arranged on the DCS cabinet (1); the controller is electrically connected with the data acquisition system, the analog quantity control system, the sequence control system and the hearth safety monitoring system; the controller on the DCS cabinet (1) and the intelligent controller on the intelligent DCS cabinet (2) are connected to the DCS network switch (3) through redundant interfaces.
3. The intelligent controller-based management and control integrated system according to claim 1, wherein: a real-time database server (7), an application database server (8), a relational database server (9) and other servers (10) in the management information system are all connected to the MIS network switch (5).
4. The intelligent controller-based management and control integrated system according to claim 1, wherein: the intelligent DCS cabinet (2) is also provided with a communication module, a power supply module and various clamping pieces.
5. The intelligent controller-based management and control integrated system according to claim 1, wherein: the function module on the intelligent controller comprises a calculation module and a control module.
6. The intelligent controller-based management and control integrated system according to claim 1, wherein: the extension software in the extension module on the management information system is used for extending the statistical capability and the analysis capability of the management information system.
7. The intelligent controller-based management and control integrated system according to claim 1, wherein: the internal configuration and the component connection of the public and auxiliary distributed control system (12) are the same as those of the unit distributed control system (11).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114760302A (en) * | 2022-03-29 | 2022-07-15 | 广东粤电滨海湾能源有限公司 | Private cloud platform architecture suitable for smart power plant |
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| CN102176154A (en) * | 2011-03-17 | 2011-09-07 | 南京迪奈特自控科技有限公司 | Integrated and intelligent flow enterprise information management and control system |
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