CN113489152A - Method for constructing compliance model of hydroelectric power plant - Google Patents
Method for constructing compliance model of hydroelectric power plant Download PDFInfo
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- CN113489152A CN113489152A CN202110797264.4A CN202110797264A CN113489152A CN 113489152 A CN113489152 A CN 113489152A CN 202110797264 A CN202110797264 A CN 202110797264A CN 113489152 A CN113489152 A CN 113489152A
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- compliance
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
Abstract
The invention relates to the technical field of hydroelectric power plants, in particular to a method for constructing a compliance model of a hydroelectric power plant; the method comprises the following steps: s1, taking all monitored data from a power plant monitoring system database and logic rules and actual measurement data of a unit lower computer plc, converting the logic rules into corresponding compliance equipment programs, and analyzing and processing information of an original equipment database to determine key point positions and numerical values; s2, compiling a compliance program on the model and making a model picture according to the compliance logic analysis result and the parameters obtained in the step S1; and S3, performing behavior simulation test on the established compliance model according to the key steps and the action condition of the key equipment in the control process, modifying the completed model according to the feedback condition of the test, and forming the final compliance model.
Description
Technical Field
The invention relates to the technical field of hydroelectric power plants, in particular to a method for constructing a compliance model of a hydroelectric power plant.
Background
At present, along with the improvement of living standard of people, the electricity consumption of residents also increases year by year, and the safe operation of a control system becomes more and more important for the production of a hydraulic power plant. However, most power plant control systems do not build corresponding compliance models, so that many misoperation and malicious operation of many control systems cannot be effectively and timely eliminated in the operation process of the power plant, and viruses and network attacks from the internet increase along with the popularization of the internet and the application of factory informatization, so that the possibility of the control systems facing the network attacks becomes greater and greater!
At present, large control systems used in domestic industries are mostly ring network structures, as shown in fig. 6; the use of the ring network avoids the data loss caused by the disconnection of the intermediate node, but no precaution can be given when the ring network faces the coming and malicious operation and the network attack. When the control system is faced with malicious operations, network viruses and network attacks, the defense simply depends on the hardware composition of the network architecture, and the practical requirements cannot be met, so that the control system can better prevent the malicious operations and the attacks from the network aspect, the establishment of a compliance model based on the control system is very necessary!
For the safe operation of a hydraulic power plant monitoring system, part of safety threats come from operation faults of any node in the control system, and the node faults (including communication network node faults, equipment operation control flow faults and the like of the power plant monitoring system) easily cause the overall shutdown of the system, and finally threaten the safety of the whole control system and the production of a power plant.
And another part of threats come from misoperation, malicious operation and even malicious attack destruction (including network attack) behaviors in the operation, running and control processes, and the destructive power of the part of threats is larger.
From the self safety of the control system, the network safety and the function safety of the hydraulic power plant monitoring system are researched, the safety protection capability of the hydraulic power plant electric power monitoring system is improved, and the method is an important measure for guaranteeing the safety production of the hydraulic power plant.
The operation mode, the working mode and the structural characteristics of the hydropower monitoring system determine that the safety problem of the hydropower monitoring system is different from the traditional safety problem, the data safety and the network safety need to be protected while the operation safety of the control system is considered, so that the safety protection of the production control system is determined, the problems of the traditional industrial control system and the network safety need to be solved, the operation rules of the control system are considered, various possible safety threats to the power plant monitoring system are analyzed by combining the operation rules of the power plant control system, and the threat sources are summarized and summarized.
With the comprehensive upgrade of the protection level, the safety protection of the production control system covers all aspects of control equipment, control networks and the like, and the requirements of active defense, safety credibility, dynamic perception and comprehensive audit are provided. Therefore, starting from the self requirement of the control system, the guarantee technology of the operation safety of the control system is continuously researched, the safety protection capability of the control system is gradually improved from the levels of normal operation function, failure or invalidation, safety emergency treatment and the like, and the system is ensured to be safe and controllable no matter under the normal working condition, the failure working condition or the network attack condition, so that the safe and continuous operation of the power production of the hydraulic power plant is ensured.
Disclosure of Invention
The invention aims to find a method for monitoring and timely alarming dangerous factors which may cause serious threats to the safety of the whole control system and the power generation safety of a power plant in real time, such as internal equipment faults, control flow faults, operation, misoperation in the running and control process, malicious operation and the like of a monitoring system of the hydraulic power plant by taking a control process of the hydraulic power plant as an example, so as to warn relevant workers to take effective precautionary measures in time according to specific production conditions.
The invention discloses a method for constructing a compliance model of a hydroelectric power plant, which comprises the following steps:
s1, taking all monitored data from a power plant monitoring system database and logic rules and actual measurement data of a unit lower computer plc, converting the logic rules into corresponding compliance equipment programs, and analyzing and processing information of an original equipment database to determine key point positions and numerical values;
s2, compiling a compliance program on the model and making a model picture according to the compliance logic analysis result and the parameters obtained in the step S1;
and S3, performing behavior simulation test on the established compliance model according to the key steps and the action condition of the key equipment in the control process, modifying the completed model according to the feedback condition of the test, and forming the final compliance model.
In the method for constructing the compliance model of the hydroelectric power plant, in the step S3, the behavior simulation test mode is to perform corresponding assignment on the key point locations.
The invention discloses a method for building a compliance model of a hydroelectric power plant.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, a compliance model of the hydroelectric power plant is established, so that the control process can be subjected to compliance behavior simulation monitoring, and meanwhile, the critical steps and the critical equipment action conditions of the control process can be subjected to violation behavior simulation monitoring.
Drawings
FIG. 1 is a flowchart of step S1 of the present invention;
FIG. 2 is a flowchart of step S2 of the present invention;
FIG. 3 is a flowchart of step S3 of the present invention;
FIG. 4 is a block diagram of a compliance model established by the present invention;
FIG. 5 is a graph of the effectiveness of the compliance model established by the present invention;
fig. 6 is a block diagram of the prior art.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The invention discloses a method for constructing a compliance model of a hydroelectric power plant, which comprises the following steps:
s1, taking all monitored data from a power plant monitoring system database and logic rules and actual measurement data of a unit lower computer plc, converting the logic rules into corresponding compliance equipment programs, and analyzing and processing information of an original equipment database to determine key point positions and numerical values;
s2, compiling a compliance program on the model and making a model picture according to the compliance logic analysis result and the parameters obtained in the step S1;
and S3, performing behavior simulation test on the established compliance model according to the key steps and the action condition of the key equipment in the control process, modifying the completed model according to the feedback condition of the test, and forming the final compliance model.
In the method for constructing the compliance model of the hydroelectric power plant, in the step S3, the behavior simulation test mode is to perform corresponding assignment on the key point locations.
The invention discloses a method for building a compliance model of a hydroelectric power plant.
In the embodiment, at the early stage of building a compliance model, a control flow diagram of an existing hydroelectric power plant needs to be obtained, after a logic flow is obtained, the flow needs to be combed in detail, an input signal point location and an output signal point location are analyzed, hardware building is performed through an existing PLC or a simulation PLC in the process of building the model, a corresponding upper-level simulation picture environment is built through corresponding configuration software, the condition that external equipment needed by the model is not complete is considered, program design can be performed through using an internal point in the PLC, and a corresponding button and a data input interface can be designed in a picture; after the hardware architecture is completed, a corresponding flow program is written in the PLC or the simulation PLC, key point positions are analyzed through data packet capturing, corresponding data bridging processing is carried out on the key points, when an actual flow is operated, corresponding assignment is carried out on the key point positions, compliance operation of actual conditions can be carried out, and after a compliance model is completed, corresponding alarm can be obtained through the model by simulating malicious attack and malicious operation, so that problems existing in a related personnel system can be prompted.
When the compliance model of the hydroelectric power plant constructed by the invention is used, the monitoring device acquires the data of the unit from a host computer database (a data acquisition and monitoring control system) of the hydroelectric power plant for data comparison, acquires each measured data of the unit from a unit control unit, is mainly used for monitoring illegal behaviors except for data simulation, and is accurate in comparison of switching value when the measured data is compared with the data of the monitoring system of the power plant; the comparison of the analog quantity takes the error of the sampling time and the normal range value into consideration; the data comparison is mainly carried out by monitoring the intrusion of malicious operation and external factors (such as behaviors of network attack and the like), monitoring the condition that the monitoring data of the upper computer is inconsistent with the actually measured data of the lower computer, preventing artificial damage and defining the control flow of the unit, key steps in the flow and rules of the action condition of key equipment; according to design requirements and correct operation steps of the unit, a unit startup control flow is defined regularly, a programmed control flow which can reach design conditions and correctly meet the unit control requirements is specified as a control flow which is unique and compliant to the control task, only normal operation steps are considered in the definition, and abnormal alarm operation is not considered; and screening all corresponding conditions causing response from the set control process to the key steps of the starting process and the action conditions of the key equipment, and defining the conditions as the compliance monitoring conditions.
The compliance model of the hydroelectric power plant constructed by the invention can be used for performing compliance behavior simulation monitoring on the control flow and performing violation behavior simulation monitoring on key steps and key equipment action conditions of the control flow.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A method of constructing a hydroelectric power plant compliance model, comprising the steps of:
s1, taking all monitored data from a power plant monitoring system database and logic rules and actual measurement data of a unit lower computer plc, converting the logic rules into corresponding compliance equipment programs, and analyzing and processing information of an original equipment database to determine key point positions and numerical values;
s2, compiling a compliance program on the model and making a model picture according to the compliance logic analysis result and the parameters obtained in the step S1;
and S3, performing behavior simulation test on the established compliance model according to the key steps and the action condition of the key equipment in the control process, modifying the completed model according to the feedback condition of the test, and forming the final compliance model.
2. The method of constructing a hydroelectric power plant compliance model of claim 1, wherein in step S3, the behavior modeling test is performed by assigning respective key points.
3. The method of constructing a hydroelectric power plant compliance model as recited in claim 2, wherein the model screen comprises buttons and a data entry interface.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265389A (en) * | 2021-12-21 | 2022-04-01 | 北京华电云博科技有限公司 | Method for detecting compliance safety of hydraulic power plant |
| CN114401146A (en) * | 2022-01-20 | 2022-04-26 | 北京华电云博科技有限公司 | Analysis and detection system for operation behaviors of lower computers in first safety zone of power plant |
| CN114415027A (en) * | 2022-03-30 | 2022-04-29 | 中国长江三峡集团有限公司 | Method and device for monitoring illegal behavior in starting process of generator set |
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| CN105302096A (en) * | 2015-11-10 | 2016-02-03 | 湖南千盟物联信息技术有限公司 | Factory intelligent scheduling method |
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2021
- 2021-07-14 CN CN202110797264.4A patent/CN113489152A/en active Pending
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| CN105302096A (en) * | 2015-11-10 | 2016-02-03 | 湖南千盟物联信息技术有限公司 | Factory intelligent scheduling method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265389A (en) * | 2021-12-21 | 2022-04-01 | 北京华电云博科技有限公司 | Method for detecting compliance safety of hydraulic power plant |
| CN114401146A (en) * | 2022-01-20 | 2022-04-26 | 北京华电云博科技有限公司 | Analysis and detection system for operation behaviors of lower computers in first safety zone of power plant |
| CN114415027A (en) * | 2022-03-30 | 2022-04-29 | 中国长江三峡集团有限公司 | Method and device for monitoring illegal behavior in starting process of generator set |
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