Hydroelectric generating set health degree comprehensive evaluation, state monitoring and real-time alarm method and system

Abstract

The invention discloses a hydroelectric generating set health degree comprehensive evaluation, state monitoring and real-time alarm method and system. The method comprises the steps that real-time operation parameters of all measuring points / indexes of a hydroelectric generating set to be evaluated are acquired, a measuring point / index evaluation model is input, and a measuring point / index health degree score is calculated; inputting the health degree score of the measuring point / index into the component health degree evaluation model, and calculating the health degree score of the component; inputting the component health degree score into a unit health degree comprehensive evaluation model, and calculating a unit health degree comprehensive score; according to the method, the design and operation data of hydroelectric generating set equipment are comprehensively considered, an overall health degree evaluation model of the hydroelectric generating set is established, the overall health degree evaluation (namely from measuring points / indexes to parts to the overall unit) of the unit is finally realized by completing equipment grading evaluation layer by layer, and alarm information and disposal suggestions are pushed to the unit exceeding a safety health degree threshold value; workers can fully know and master the state of the unit, and decision support is provided for safe and stable operation of the unit.

Description

Technical Field

[0001] This invention relates to a method and system for comprehensive health assessment, status monitoring, and real-time alarm of hydropower units, belonging to the field of intelligent operation and maintenance of hydropower equipment. Background Technology

[0002] Hydropower plays a vital role in my country's energy structure. Hydropower units, as core equipment for power grid peak shaving, frequency regulation, and clean energy supply, directly impact the safety and stability of the power grid and the economic benefits of the power plant. During operation, hydropower units require monitoring and analysis of their overall operating status. However, existing methods for assessing the health status of hydropower units have shortcomings. They often rely on manual inspections and periodic maintenance, failing to achieve real-time and comprehensive monitoring of the unit's condition. Furthermore, while existing monitoring systems can collect various parameters, improvements are needed in data fusion analysis, comprehensive health status assessment, and early fault warning. As hydropower units develop towards larger capacity and higher parameters, the requirements for operational reliability and safety are increasing, necessitating a more accurate and efficient method for condition monitoring and health assessment. Summary of the Invention

[0003] This invention provides a method and system for comprehensive health assessment, status monitoring, and real-time alarm of hydropower units, which solves the problems disclosed in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A comprehensive assessment method for the health of hydropower units:

[0006] Obtain real-time operating parameters of all measuring points / indicators of the hydropower unit to be evaluated;

[0007] The real-time operating parameters are input into a pre-built measurement point / indicator evaluation model to calculate the health score of the measurement point / indicator.

[0008] The health scores of all measurement points / indicators are input into the pre-built component health assessment model of the component to calculate the component health score;

[0009] The health scores of all components are input into a pre-built comprehensive health assessment model for the unit, resulting in a comprehensive health score for the computer group.

[0010] Furthermore, the measurement point / index evaluation model is as follows:

[0011] ;

[0012] In the formula, N l For the health score of measurement point / indicator l, P lE represents the real-time operating parameter value of the measuring point / index l. l This is the alarm threshold for measurement point / indicator l.

[0013] Furthermore, the component health assessment model is as follows:

[0014] ;

[0015] ;

[0016] In the formula, l is a positive integer. Z i The score for component i is given by n, where n is the number of measurement points / indicators per component, and j is the score for component i. l b is the weighting coefficient for the measurement point / index l. l b represents the number of times that the measuring point / indicator l has experienced a failure or defect. t This represents the number of times that the measuring point / indicator t has experienced a fault or defect.

[0017] Furthermore, the comprehensive health assessment model for the unit is as follows:

[0018] ;

[0019] ;

[0020] In the formula, HI represents the overall rating of the unit, m represents the number of components in the hydroelectric unit, and w i Let a be the weighting coefficient for component i. i This represents the number of times component i has experienced a failure or defect. .

[0021] Furthermore, it also includes: removing outliers from real-time operating parameters.

[0022] A second aspect of the present invention provides a method for monitoring the status of a hydroelectric power unit:

[0023] The health scores of measuring points / indicators, component health scores, and overall unit health scores are calculated using the above-mentioned comprehensive health assessment method for hydropower units.

[0024] The system displays the health scores of measuring points / indicators, component health scores, and overall unit health scores in real time, and monitors the operating status of the hydropower unit based on these scores.

[0025] The third aspect of this invention provides a real-time alarm method for hydropower units:

[0026] The health scores of measuring points / indicators, component health scores, and overall unit health scores are calculated using the above-mentioned comprehensive health assessment method for hydropower units.

[0027] When the health score of a measurement point / indicator exceeds the threshold, an alarm message for the health of the measurement point / indicator is issued.

[0028] When the component health score exceeds the threshold, a component health alarm message is issued;

[0029] When the overall health score of the unit exceeds the threshold, a unit health alarm message is issued.

[0030] The fourth aspect of this invention is a comprehensive health assessment system for hydropower units, characterized in that it includes:

[0031] The data acquisition module is used to acquire the real-time operating parameters of all measuring points / indicators of the hydropower unit to be evaluated;

[0032] The measurement point / indicator health assessment module is used to input real-time operating parameters and calculate the measurement point / indicator health score;

[0033] The component health assessment module is used to input the health scores of all measurement points / indicators and calculate the component health score.

[0034] The unit health comprehensive module is used to input the health scores of all components and the comprehensive health score of the computer group.

[0035] The fifth aspect of this invention provides a hydropower unit status monitoring system, comprising:

[0036] The status monitoring module is used to display the health scores of measuring points / indicators, component health scores, and the comprehensive health score of the unit in real time, and to monitor the operating status of the hydropower unit based on the scores.

[0037] The sixth aspect of this invention provides a real-time alarm system for hydropower units, comprising:

[0038] The measurement point / indicator health alarm module is used to issue a measurement point / indicator health alarm message when the measurement point / indicator health score exceeds the threshold.

[0039] The component health alarm module is used to issue a component health alarm message when the component health score exceeds the threshold.

[0040] The unit health alarm module is used to issue unit health alarm information when the overall health score of the unit exceeds the threshold.

[0041] The beneficial effects achieved by this invention are as follows:

[0042] This invention comprehensively considers the design and operation data of hydropower units to establish an overall health assessment model for hydropower units. By completing the hierarchical evaluation of equipment layer by layer, it ultimately achieves an overall health assessment of the unit (i.e., from measuring points / indicators → components → the entire unit). For units that exceed the safety and health threshold, alarm information and handling suggestions are pushed. This realizes equipment status monitoring and health assessment, enabling staff to have a more complete understanding and grasp of the unit's status, and providing decision support for the safe and stable operation of the unit. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the method flow of the present invention;

[0044] Figure 2 This is a schematic diagram of the comprehensive health assessment method of the present invention;

[0045] Figure 3 This is a block diagram of the invention system. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0047] like Figure 1 As shown, a comprehensive health assessment method for hydropower units mainly includes four parts: data acquisition, data processing, real-time monitoring (alarm), and comprehensive status assessment.

[0048] Data acquisition, including:

[0049] (1) Standards and regulations, power plant setting sheets;

[0050] (2) Design data of hydropower units, including efficiency, lifespan, etc.;

[0051] (3) Case studies on the handling of historical defects in hydropower units;

[0052] (4) Real-time operating data of hydropower units, including switch quantities, status quantities, analog quantities, etc.

[0053] Data processing, including:

[0054] (1) Structure unstructured data, including standard regulations, power plant setting sheets, hydropower unit design data, hydropower unit historical defect handling cases and other unstructured data, as well as reverse structure processing, and store them in the database;

[0055] 1) Formulate corresponding alarm thresholds according to the power plant's various indicator setting sheets, standard procedures, design requirements, and equipment service life;

[0056] 2) Establish a correspondence between defects / anomalies and their handling methods and measures (handling suggestions) based on historical defect handling cases.

[0057] (2) Process and store the real-time operation data of the hydropower unit in a hierarchical manner, that is, divide and store the data of each measuring point according to the type of the object (indicator, component, unit, etc.) and time.

[0058] Real-time monitoring, including:

[0059] (1) Identify and remove outliers from the acquired real-time data to reduce the false alarm rate;

[0060] (2) When the real-time data exceeds the alarm threshold (let the alarm threshold of the measuring point / index l be E) l It will push alarm information and corresponding handling suggestions.

[0061] Comprehensive condition assessment, including:

[0062] (1) Weighting: The weighting coefficients are adjusted according to the frequency and importance of failures of units, components, and measuring points / indicators;

[0063] (2) Status assessment: from measuring points / indicators → components → overall unit health assessment, and finally complete the overall unit status assessment.

[0064] make:

[0065] A certain hydroelectric generator unit contains m parts;

[0066] The number of times each component has failed / defected is 'a';

[0067] Each component contains n measurement points / indicators;

[0068] The number of times each measuring point / indicator has experienced a fault / defect is b;

[0069] The unit's rating is HI, and the unit's health alarm threshold is E;

[0070] The component received a score of Z.

[0071] The score for each measurement point / indicator is N ( ).

[0072] Evaluation of measuring points / indicators:

[0073]

[0074] In the formula, N l For the scoring of measurement point / index l, P l This is the real-time value of the measuring point / index l.

[0075] Component evaluation:

[0076]

[0077]

[0078] In the formula, Z i For component i, j l b is the weighting coefficient for the measurement point / index l. l This represents the number of times that the measuring point / indicator has experienced a fault or defect.

[0079] Overall unit assessment:

[0080]

[0081]

[0082] In the formula, HI represents the overall score of the unit, and w i Let a be the weighting coefficient for component i. i This represents the number of times component i has experienced a failure or defect.

[0083] Alarm and handling suggestions:

[0084] When HI>E, an alarm message and relevant handling suggestions will be pushed.

[0085] like Figure 2 As shown, the following system is generated according to the above method:

[0086] A comprehensive health assessment system for hydropower units, comprising:

[0087] The data acquisition module is used to acquire the real-time operating parameters of all measuring points / indicators of the hydropower unit to be evaluated;

[0088] The measurement point / indicator health assessment module is used to input real-time operating parameters and calculate the measurement point / indicator health score;

[0089] The component health assessment module is used to input the health scores of all measurement points / indicators and calculate the component health score.

[0090] The unit health comprehensive module is used to input the health scores of all components and the comprehensive health score of the computer group.

[0091] A hydropower unit condition monitoring system, comprising:

[0092] The status monitoring module is used to display the health scores of measuring points / indicators, component health scores, and the comprehensive health score of the unit in real time, and to monitor the operating status of the hydropower unit based on the scores.

[0093] A real-time alarm system for hydropower units includes:

[0094] The measurement point / indicator health alarm module is used to issue a measurement point / indicator health alarm message when the measurement point / indicator health score exceeds the threshold.

[0095] The component health alarm module is used to issue a component health alarm message when the component health score exceeds the threshold.

[0096] The unit health alarm module is used to issue unit health alarm information when the overall health score of the unit exceeds the threshold.

[0097] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

[0098] A computer-readable storage medium storing one or more programs, the one or more programs including instructions that, when executed by a computing device, cause the computing device to perform a comprehensive health assessment method for hydropower units.

[0099] A computing device includes one or more processors, one or more memories, and one or more programs, wherein the one or more programs are stored in the one or more memories and configured to be executed by the one or more processors, and the one or more programs include instructions for performing a comprehensive health assessment method for hydroelectric generators.

[0100] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0101] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0102] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0103] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0104] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of the claims of the present invention pending approval.

Claims

1. A comprehensive assessment method for the health of hydropower units, characterized in that: Obtain real-time operating parameters of all measuring points / indicators of the hydropower unit to be evaluated; The real-time operating parameters are input into a pre-built measurement point / indicator evaluation model to calculate the health score of the measurement point / indicator. The health scores of all measurement points / indicators are input into the pre-built component health assessment model of the component to calculate the component health score; The health scores of all components are input into a pre-built comprehensive health assessment model for the unit, resulting in a comprehensive health score for the computer group.

2. The comprehensive health assessment method for hydropower units according to claim 1, characterized in that: The measurement point / index evaluation model is as follows: ； In the formula, N l For the health score of measurement point / indicator l, P l E represents the real-time operating parameter value of the measuring point / index l. l This is the alarm threshold for measurement point / indicator l.

3. The comprehensive health assessment method for hydropower units according to claim 2, characterized in that: The component health assessment model is as follows: ； ； In the formula, l is a positive integer. Z i The score for component i is given by n, where n is the number of measurement points / indicators per component, and j is the score for component i. l b is the weighting coefficient for the measurement point / index l. l b represents the number of times that the measuring point / indicator l has experienced a failure or defect. t This represents the number of times that the measuring point / indicator t has experienced a fault or defect.

4. The comprehensive health assessment method for hydropower units according to claim 3, characterized in that: The comprehensive health assessment model for the generating units is as follows: ； ； In the formula, HI represents the overall rating of the unit, m represents the number of components in the hydroelectric unit, and w i Let a be the weighting coefficient for component i. i This represents the number of times component i has experienced a failure or defect. .

5. The comprehensive health assessment method for hydropower units according to claim 1, characterized in that, Also includes: Remove outliers from real-time running parameters.

6. A method for monitoring the status of a hydropower unit, characterized in that: The health scores of measuring points / indicators, component health scores, and overall unit health scores are calculated using the comprehensive health assessment method for hydropower units as described in any one of claims 1-5. The system displays the health scores of measuring points / indicators, component health scores, and overall unit health scores in real time, and monitors the operating status of the hydropower unit based on these scores.

7. A real-time alarm method for hydropower units, characterized in that: The health scores of measuring points / indicators, component health scores, and overall unit health scores are calculated using the comprehensive health assessment method for hydropower units as described in any one of claims 1-5. When the health score of a measurement point / indicator exceeds the threshold, an alarm message for the health of the measurement point / indicator is issued. When the component health score exceeds the threshold, a component health alarm message is issued; When the overall health score of the unit exceeds the threshold, a unit health alarm message is issued.

8. A comprehensive health assessment system for hydropower units, characterized in that, include: The data acquisition module is used to acquire the real-time operating parameters of all measuring points / indicators of the hydropower unit to be evaluated; The measurement point / indicator health assessment module is used to input real-time operating parameters and calculate the measurement point / indicator health score; The component health assessment module is used to input the health scores of all measurement points / indicators and calculate the component health score. The unit health comprehensive module is used to input the health scores of all components and the comprehensive health score of the computer group.

9. A hydropower unit status monitoring system, characterized in that, include: The status monitoring module is used to display the health scores of measuring points / indicators, component health scores, and the comprehensive health score of the unit in real time, and to monitor the operating status of the hydropower unit based on the scores.

10. A real-time alarm system for hydropower units, characterized in that, include: The measurement point / indicator health alarm module is used to issue a measurement point / indicator health alarm message when the health score of the measurement point / indicator exceeds the threshold. The component health alarm module is used to issue a component health alarm message when the component health score exceeds the threshold. The unit health alarm module is used to issue a unit health alarm message when the overall health score of the unit exceeds the threshold.

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