CN119806070A - DCS control cabinet, industrial control network and power distribution system integrated simulation system - Google Patents
DCS control cabinet, industrial control network and power distribution system integrated simulation system Download PDFInfo
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Abstract
本公开属于核电技术领域，具体涉及一种DCS控制机柜、工控网络和配电系统融合仿真系统。本公开将DCS控制机柜三维仿真模型、DCS工控网络仿真模型和DCS配电仿真模型进行融合，实现各模型之间的数据交互，能进行DCS网络故障、配电故障的维修场景仿真和故障演练。为核电厂DCS运维提供数字化运维的工具。将对核电厂DCS系统有重要影响的DCS工控网络和配电系统融合到DCS仿真系统中，由此提供交换机以及机柜配电系统正常和故障情况下DCS系统的仿真。由此提供与现场更为逼真的DCS仿真系统，为核电厂DCS运维提供可信的仿真分析与验证工具，助力DCS运维数字化转型。
The present disclosure belongs to the field of nuclear power technology, and specifically relates to a DCS control cabinet, industrial control network and power distribution system integrated simulation system. The present disclosure integrates the three-dimensional simulation model of the DCS control cabinet, the DCS industrial control network simulation model and the DCS power distribution simulation model to realize data interaction between the models, and can simulate maintenance scenarios and fault drills for DCS network failures and power distribution failures. Provide digital operation and maintenance tools for nuclear power plant DCS operation and maintenance. The DCS industrial control network and power distribution system, which have an important impact on the DCS system of the nuclear power plant, are integrated into the DCS simulation system, thereby providing simulation of the DCS system under normal and fault conditions of the switch and cabinet power distribution system. This provides a DCS simulation system that is more realistic than the site, provides reliable simulation analysis and verification tools for nuclear power plant DCS operation and maintenance, and helps the digital transformation of DCS operation and maintenance.
Description
Technical Field
The invention belongs to the technical field of nuclear power, and particularly relates to a fusion simulation system of a DCS control cabinet, an industrial control network and a power distribution system.
Background
Along with the development of digital instrument control technology, DCS (distributed control system ) has the characteristics of distributed control, centralized monitoring and the like, and the control process is reliable and stable, so that the DCS is widely applied to nuclear power plants. The DCS system brings convenience and advantages for the instrument control professional operation and equipment management of the nuclear power unit, and simultaneously greatly improves the maintenance complexity.
In the related art, aiming at the simulation of a DCS system, only the simulation of DCS control logic is concerned, and less simulation is concerned in the fields of DCS power distribution, network and the like, so that the existing DCS simulation system has larger difference from a real system and has lower consistency.
The design, operation and the like of the current nuclear power plant are converted into digital. The DCS maintenance of nuclear power plants is also facing the need for digital transformation. In order to meet the requirement of digital transformation of the operation and maintenance of the DCS of the nuclear power plant, a simulation model which is integrated with the main components of the DCS of the nuclear power plant, such as a control cabinet, an industrial control network and a power distribution system, is required to be developed, and a DCS simulation model which is highly consistent with the composition and structure of the DCS on site is constructed and used for digital operation and maintenance of the DCS.
Disclosure of Invention
In order to overcome the problems in the related art, the fusion simulation system of the DCS control cabinet, the industrial control network and the power distribution system is provided, and comprises a plurality of power distribution simulation models, a plurality of control cabinet simulation models and an industrial control network simulation model;
Each power distribution simulation model comprises a power supply bus simulation module and a power supply switch simulation module, wherein the power supply bus simulation module is used for simulating the voltage and current states of a power supply bus, and the power supply switch simulation module is used for simulating the closing state of a power supply switch and influencing the power supply state of a corresponding bus;
each control cabinet simulation model comprises a control logic simulation module, a power supply simulation module, a communication simulation module and an IO card simulation module, wherein the control logic simulation module is used for simulating the logic operation function of the control cabinet, the power supply simulation module is used for simulating the power supply function of the control cabinet, the communication simulation module is used for simulating the internal communication function and the external communication function of the control cabinet, and the IO card simulation module is used for simulating the input and output functions of the IO card of the control cabinet;
The communication simulation modules of the control cabinet simulation models are respectively connected with the industrial control network simulation models, and the power supply simulation module of each control cabinet simulation model is connected with the power supply bus simulation module of the corresponding power distribution simulation model.
In one possible implementation, the industrial control network simulation model comprises a plurality of room-level switch simulation modules and a plurality of unit-level switch simulation modules, wherein the room-level switch simulation modules are used for simulating communication protocols and communication links of the room-level switches, and the unit-level switch simulation modules are used for simulating the communication protocols and the communication links of the unit-level switches;
each room-level switch simulation module is connected with a communication simulation module of the corresponding control cabinet simulation model, and each unit-level switch simulation module is connected with the corresponding room-level switch simulation module.
In one possible implementation manner, the system is adopted to simulate the data exchange process and the load of a communication link between a unit-level switch simulation module, a room-level switch simulation module and a control cabinet simulation model which are connected with each other, and display the visualized data real-time transmission state and the communication change process under the switch fault condition.
In one possible implementation, the system includes a redundant switch model and a redundant communication link model.
In one possible implementation manner, the system is adopted to perform verification of the redundant structure, and in the case that the communication link between the control cabinet simulation model and the corresponding room-level switch simulation module is set to be faulty, the communication function of the other redundant communication link between the control cabinet simulation model and the corresponding room-level switch simulation module is verified.
In one possible implementation manner, the industrial control network simulation model adopts a hierarchical modeling mechanism and is divided into a network layer, a node layer and a process layer, and each hierarchy models and simulates a network topological structure, node function compositions and protocol model algorithm.
In one possible implementation manner, link faults and node faults are simulated by setting corresponding and control cabinet simulation models in the system, and data flow direction changes when faults occur and when the faults recover are displayed.
In one possible implementation manner, the system configures the industrial control network simulation model to output preset index parameters to each connected control cabinet simulation model, and configures the control cabinet simulation model and the power distribution simulation model to form a preset power distribution simulation so as to show the transmission performance of the industrial control network and the comprehensive influence of the power distribution system state, wherein the index parameters comprise receiving and transmitting throughput, end-to-end time delay, packet loss rate and link bandwidth occupancy rate.
In one possible implementation, the following steps are used to generate a DCS control cabinet, an industrial control network and a power distribution system fusion simulation system:
Integrating each control cabinet simulation model with a corresponding power distribution simulation model, and connecting the power distribution simulation model with power supply information of the corresponding control cabinet simulation model;
step 2, setting configuration information of each switch model in the DCS industrial control network simulation model, wherein the configuration information is the same as the configuration information of the simulated real object;
setting network configuration information of each control cabinet simulation model, wherein the network configuration information is the same as the configuration information of the simulated real object;
step 4, connecting the configured switch model simulation models through a network, wherein the network topology is consistent with the simulated real object to form a DCS industrial control network simulation model;
and 5, integrating the simulation models of the control cabinets and the simulation models of the DCS industrial control network, wherein the network connection topology of the simulation models is the same as that of the simulated real object, so as to form a simulation system for the integration of the DCS control cabinets, the industrial control network and the power distribution.
The DCS control cabinet three-dimensional simulation model, the DCS industrial control network simulation model and the DCS power distribution simulation model are fused, data interaction among the models is achieved, and maintenance scene simulation and fault exercise of DCS network faults and power distribution faults can be conducted. And a digital operation and maintenance tool is provided for the operation and maintenance of the DCS of the nuclear power plant. The DCS industrial control network and the power distribution system which have important influence on the DCS system of the nuclear power plant are fused into the DCS simulation system, so that simulation of the DCS system under the normal and fault conditions of the switch and the cabinet power distribution system can be provided. Therefore, the DCS simulation system which is more realistic with the site is provided, a reliable simulation analysis and verification tool is provided for the operation and maintenance of the DCS of the nuclear power plant, and the digital transformation of the operation and maintenance of the power-assisted DCS is realized.
Drawings
FIG. 1 is a block diagram of a DCS control cabinet, industrial control network, and power distribution system fusion simulation system shown in an embodiment of the present disclosure.
FIG. 2 is a block diagram of another DCS control cabinet, industrial control network, and power distribution system fusion simulation system shown in an embodiment of the present disclosure.
Detailed Description
The disclosure is further described in detail below with reference to the drawings and specific examples.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, the terms used herein are for the purpose of describing particular embodiments only and are not intended to be limiting of the disclosure, and the term "comprises" and any variations thereof herein are intended to cover non-exclusive inclusion. It will be apparent that the embodiments described in this disclosure are only some, but not all embodiments of the disclosure. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.
Reference in the present disclosure to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present disclosure. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
FIG. 1 is a block diagram of a DCS control cabinet, industrial control network, and power distribution system fusion simulation system, shown in an embodiment of the present disclosure, including multiple power distribution simulation models, multiple control cabinet simulation models, and an industrial control network simulation model, as shown in FIG. 1.
Each power distribution simulation model comprises a power supply bus simulation module and a power supply switch simulation module, wherein the power supply bus simulation module is used for simulating the voltage and current states of a power supply bus, and the power supply switch simulation module is used for simulating the closing state of a power supply switch and influencing the power supply state of a corresponding bus.
Each control cabinet simulation model comprises a control logic simulation module, a power supply simulation module, a communication simulation module and an IO card simulation module. The control logic simulation module is used for simulating the logic operation function of the control cabinet, and the power supply simulation module is used for simulating the power supply function of the control cabinet. The communication simulation module is used for simulating the internal communication function and the external communication function of the control cabinet. The IO card simulation module is used for simulating the input and output functions of the IO card of the control cabinet.
Referring to fig. 2, the industrial control network simulation model further comprises a plurality of room-level switch simulation modules and a plurality of unit-level switch simulation modules, wherein the room-level switch simulation modules are used for simulating communication protocols and communication links of the room-level switches, and the unit-level switch simulation modules are used for simulating the communication protocols and the communication links of the unit-level switches. For example, the system can simulate the data exchange process and the load of a communication link between the interconnected unit-level switch simulation module, the room-level switch simulation module and the control cabinet simulation model, and display the visualized data real-time transmission state and the communication change process under the switch fault condition.
The power supply simulation module of each control cabinet simulation model is connected with the power supply bus simulation module of the corresponding power distribution simulation model, each room-level switch simulation module is connected with the communication simulation module of the corresponding control cabinet simulation model, and each unit-level switch simulation module is connected with the corresponding room-level switch simulation module. Therefore, the method and the device can simulate the actual running state of the data transmission link of the nuclear power control network more realistically by refining the switch class of the industrial control network into a unit level and a room level, and are helpful for deep finding the root cause of network faults.
In one possible implementation, the system is used for verifying the redundant structure, and the system comprises a network topology model which is redundant to each other, including a redundant switch model and a redundant communication link model, for example, in the case that the communication links of the control cabinet simulation model and the corresponding room-level switch simulation module are set to be faulty, the communication functions of the control cabinet simulation model and the other redundant communication link of the corresponding room-level switch simulation module are verified.
In one possible implementation manner, the industrial control network simulation model adopts a hierarchical modeling mechanism and is divided into a network layer, a node layer and a process layer. Each hierarchy models and simulates network topology, node functional composition, and protocol model algorithms. This hierarchical modeling mechanism enables the system to better represent and simulate complex network environments.
The industrial control network simulation model outputs preset index parameters to each connected control cabinet simulation model, and configures the control cabinet simulation model and the power distribution simulation model to form preset power distribution simulation (the control cabinet simulation model and the power distribution simulation model are normal or fault in power distribution), wherein the index parameters comprise receiving and transmitting throughput, end-to-end time delay, packet loss rate and link bandwidth occupancy rate. The output of index parameters combines the power distribution state simulation to integrate two important factors of data flow and power distribution state, and reflects the real state and performance of the whole network more comprehensively and realistically, so that the user is helped to evaluate and analyze the transmission performance of the industrial control network and the comprehensive influence of the power distribution system state.
In one possible implementation, link failure and node failure simulation are performed by setting up a corresponding and control cabinet simulation model, and data flow direction changes at the time of failure occurrence and recovery are observed.
In one possible implementation, the system described above is formed using the following steps:
and step 1, integrating each control cabinet simulation model with a corresponding power distribution simulation model, and connecting the power distribution simulation model with power supply information of the corresponding control cabinet simulation model.
And 2, setting configuration information of each switch model in the DCS industrial control network simulation model, wherein the configuration information is the same as the configuration information of the simulated real object.
And 3, setting network configuration information of each control cabinet simulation model, wherein the network configuration information is the same as the configuration information of the simulated real object.
And 4, connecting the configured switch model simulation models through a network, wherein the network topology is consistent with the simulated real object to form the DCS industrial control network simulation model.
And 5, integrating the simulation models of the control cabinets and the simulation models of the DCS industrial control network, wherein the network connection topology of the simulation models is the same as that of the simulated real object, so as to form a simulation system for the integration of the DCS control cabinets, the industrial control network and the power distribution.
While the invention has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. A DCS control cabinet, an industrial control network and a power distribution system fusion simulation system is characterized by comprising a plurality of power distribution simulation models, a plurality of control cabinet simulation models and an industrial control network simulation model;
Each power distribution simulation model comprises a power supply bus simulation module and a power supply switch simulation module, wherein the power supply bus simulation module is used for simulating the voltage and current states of a power supply bus, and the power supply switch simulation module is used for simulating the closing state of a power supply switch and influencing the power supply state of a corresponding bus;
each control cabinet simulation model comprises a control logic simulation module, a power supply simulation module, a communication simulation module and an IO card simulation module, wherein the control logic simulation module is used for simulating the logic operation function of the control cabinet, the power supply simulation module is used for simulating the power supply function of the control cabinet, the communication simulation module is used for simulating the internal communication function and the external communication function of the control cabinet, and the IO card simulation module is used for simulating the input and output functions of the IO card of the control cabinet;
The communication simulation modules of the control cabinet simulation models are respectively connected with the industrial control network simulation models, and the power supply simulation module of each control cabinet simulation model is connected with the power supply bus simulation module of the corresponding power distribution simulation model.
2. The system of claim 1, wherein the industrial control network simulation model comprises a plurality of room-level switch simulation modules and a plurality of unit-level switch simulation modules, wherein the room-level switch simulation modules are used for simulating communication protocols and communication links of the room-level switch, and the unit-level switch simulation modules are used for simulating communication protocols and communication links of the unit-level switch;
each room-level switch simulation module is connected with a communication simulation module of the corresponding control cabinet simulation model, and each unit-level switch simulation module is connected with the corresponding room-level switch simulation module.
3. The system of claim 2, wherein the system is employed to simulate the data exchange process, the load of the communication link, and the communication change process in the case of a switch failure, between the interconnected unit-level switch simulation module, room-level switch simulation module, and control cabinet simulation model.
4. The system of claim 1, wherein the system comprises a redundant switch model and a redundant communication link model.
5. The system of claim 4, wherein the system is used to verify a redundant configuration, and wherein in the event that a communication link between a control cabinet emulation model and a corresponding room-level switch emulation module is set to fail, the communication function of the control cabinet emulation model and another redundant communication link of the corresponding room-level switch emulation module is verified.
6. The system of claim 1, wherein the industrial control network simulation model is divided into a network layer, a node layer and a process layer by using a hierarchical modeling mechanism, and each hierarchy models and simulates a network topology, a node function composition and a protocol model algorithm.
7. The system of claim 6, wherein link failure and node failure simulation is performed by setting up corresponding and control cabinet simulation models in the system to demonstrate data flow direction changes at the time of failure occurrence and recovery.
8. The system of claim 1, wherein the system configures the industrial network simulation model to output preset index parameters to each connected control cabinet simulation model, and configures the control cabinet simulation model and the power distribution simulation model to form a preset power distribution simulation to show the comprehensive influence of the transmission performance of the industrial network and the power distribution system state, wherein the index parameters include a receiving and transmitting throughput, an end-to-end delay, a packet loss rate, and a link bandwidth occupancy rate.
9. The system of claim 1, wherein the DCS control cabinet, the industrial control network and the power distribution system fusion simulation system are generated by:
Integrating each control cabinet simulation model with a corresponding power distribution simulation model, and connecting the power distribution simulation model with power supply information of the corresponding control cabinet simulation model;
step 2, setting configuration information of each switch model in the DCS industrial control network simulation model, wherein the configuration information is the same as the configuration information of the simulated real object;
setting network configuration information of each control cabinet simulation model, wherein the network configuration information is the same as the configuration information of the simulated real object;
step 4, connecting the configured switch model simulation models through a network, wherein the network topology is consistent with the simulated real object to form a DCS industrial control network simulation model;
and 5, integrating the simulation models of the control cabinets and the simulation models of the DCS industrial control network, wherein the network connection topology of the simulation models is the same as that of the simulated real object, so as to form a simulation system for the integration of the DCS control cabinets, the industrial control network and the power distribution.
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