Method and system for evaluating working state of hydroelectric generator

Abstract

The invention discloses a hydroelectric generator working state evaluation method and system, and the method comprises the steps: obtaining and analyzing the operation monitoring parameter data of a hydroelectric generator, and determining key operation parameters which affect the safe operation of the hydroelectric generator; analyzing and evaluating the operation safety state of the hydroelectric generator based on the data corresponding to the key operation parameters to obtain an operation safety state evaluation value; obtaining performance index data of the hydroelectric generator, and analyzing and evaluating the performance index data to obtain a performance evaluation value; determining a working state evaluation value of the hydroelectric generator based on the operation safety state evaluation value and the performance evaluation value, and determining a working state grade according to the working state evaluation value; and judging whether the working state of the hydroelectric generator is normal or not according to the working state grade, and sending out an early warning prompt after judging that the working state is abnormal. Operation of the hydroelectric generator is guided by comprehensively evaluating the working state of the hydroelectric generator, the safety, reliability and efficiency of equipment can be improved, and continuous and stable operation of the equipment is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of hydropower generation, and particularly to a method and system for evaluating the working state of a hydro-generator. Background Art

[0002] As a clean and renewable energy source, hydropower generation plays an important role in the energy field. To ensure the safe and efficient operation of hydropower generating units, it is particularly important to evaluate and monitor their working states. The working state evaluation method aims to provide comprehensive information about the operating state of the hydro-generator for operation and maintenance personnel by monitoring key parameters, analyzing performance indicators, and comprehensively evaluating data, so as to timely detect problems, prevent failures, and ensure the safe and efficient operation of the equipment.

[0003] However, traditional methods usually rely on manual analysis and evaluation of data, which are easily affected by subjective factors, and have low processing efficiency for a large amount of data. Moreover, traditional methods often lack comprehensive evaluation of multiple parameters and cannot comprehensively understand the overall state of the equipment, making it difficult to make comprehensive decisions. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a method and system for evaluating the working state of a hydro-generator, including: Obtaining operation monitoring parameter data of the hydro-generator, analyzing and screening the operation monitoring parameter data, and determining key operation parameters affecting the safe operation of the hydro-generator; Analyzing and evaluating the operation safety state of the hydro-generator based on the data corresponding to the key operation parameters to obtain an operation safety state evaluation value of the hydro-generator; Obtaining performance index data of the hydro-generator, analyzing and evaluating the performance index data to obtain a performance evaluation value of the hydro-generator; Determining a working state evaluation value of the hydro-generator based on the operation safety state evaluation value and the performance evaluation value, and determining the working state level of the hydro-generator according to the working state evaluation value; Judging whether the working state of the hydro-generator is normal according to the working state level, and sending a warning prompt after judging that the working state of the hydro-generator is abnormal.

[0005] Further, the obtaining operation monitoring parameter data of the hydro-generator, analyzing and screening the operation monitoring parameter data, and determining key operation parameters affecting the safe operation of the hydro-generator includes: Obtaining operation monitoring parameter data of the hydro-generator, determining the operation parameters included in the operation monitoring parameter data, and dividing the operation monitoring parameter data into several operation parameter data groups according to the operation parameters; Determine the safety warning values corresponding to each pre-set parameter type, and screen out the data in each operating parameter data group that exceeds the safety warning value; Determine the number of the screened-out data, and calculate the proportion of the number of the screened-out data in the corresponding parameter data group; Determine the pre-set proportion threshold, and determine the operating parameters corresponding to the parameter data group whose proportion value exceeds the proportion threshold as the key operating parameters affecting the safe operation of the hydraulic generator.

[0006] Furthermore, analyze and evaluate the operating safety state of the hydraulic generator based on the data corresponding to the key operating parameters to obtain the operating safety state evaluation value of the hydraulic generator, including: Obtain the operating parameter data group corresponding to the key operating parameters, and calculate the average value of all the data that exceeds the safety warning value in the operating parameter data group corresponding to the key operating parameters; Evaluate and obtain the safety evaluation value corresponding to each key operating parameter for the average value; Determine the proportion of the data that exceeds the safety warning value in the key operating parameters and the corresponding operating parameter data group, and use the proportion value as the weight corresponding to each key operating parameter; Perform a weighted summation calculation on the safety evaluation values corresponding to each key operating parameter and the weights to obtain the operating safety state evaluation value of the hydraulic generator.

[0007] Furthermore, obtain the performance index data of the hydraulic generator, and analyze and evaluate the performance index data to obtain the performance evaluation value of the hydraulic generator, including: Obtain the performance index data of the hydraulic generator. The performance index data includes output power data and efficiency data, and calculate the average values of the output power data and the efficiency data respectively to obtain the average output power and the average efficiency; Obtain the pre-set average standard output power and the average standard efficiency, and calculate the differences between the average output power and the average standard output power and between the average efficiency and the average standard efficiency respectively to obtain the output power difference and the efficiency difference; Evaluate the output power difference and the efficiency difference respectively to obtain the output power evaluation value and the efficiency evaluation value; Perform an addition calculation on the output power evaluation value and the efficiency evaluation value to obtain the performance evaluation value of the hydraulic generator.

[0008] Furthermore, determine the operating state evaluation value of the hydraulic generator based on the operating safety state evaluation value and the performance evaluation value, including: Obtain the safety state evaluation value and the performance evaluation value, and perform a weighted summation calculation based on the safety state evaluation value, the performance evaluation value and their corresponding preset weights to obtain the operating state evaluation value of the hydraulic generator.

[0009] Further, determining the working state level of the hydraulic generator according to the working state evaluation value includes: Presetting the corresponding relationship between the working state level and the working state evaluation value interval. For each working state evaluation value interval in the corresponding relationship between the working state level and the working state evaluation value interval, a corresponding working state level is associated; Obtaining the working state evaluation value of the hydraulic generator, and based on the mapping relationship of the working state evaluation value interval to which the working state evaluation value belongs in the corresponding relationship between the working state level and the working state evaluation value interval, selecting the working state level corresponding to the working state evaluation value interval as the working state level corresponding to the hydraulic generator.

[0010] Further, judging whether the working state of the hydraulic generator is normal according to the working state level, and sending a warning prompt after judging that the working state of the hydraulic generator is abnormal, includes: Obtaining the preset warning working state level, and judging whether the working state level exceeds the warning working state level; If the working state level does not exceed the warning working state level, it is judged that the working state of the hydraulic generator is normal; If the working state level exceeds the warning working state level, it is judged that the working state of the hydraulic generator is abnormal; Sending a warning prompt after judging that the working state of the hydraulic generator is abnormal. The warning prompt includes sending the current working state level to the workbench and giving an audible and visual prompt.

[0011] The present invention also provides a hydraulic generator working state evaluation system, including: An acquisition module, configured to acquire the operation monitoring parameter data of the hydraulic generator, analyze and screen the operation monitoring parameter data, and determine the key operation parameters affecting the safe operation of the hydraulic generator; A first evaluation module, configured to analyze and evaluate the operation safety state of the hydraulic generator based on the data corresponding to the key operation parameters, and obtain the operation safety state evaluation value of the hydraulic generator; A second evaluation module, configured to acquire the performance index data of the hydraulic generator, analyze and evaluate the performance index data, and obtain the performance evaluation value of the hydraulic generator; A determination module, configured to determine the working state evaluation value of the hydraulic generator based on the operation safety state evaluation value and the performance evaluation value, and determine the working state level of the hydraulic generator according to the working state evaluation value; A judgment module, configured to judge whether the working state of the hydraulic generator is normal according to the working state level, and send a warning prompt after judging that the working state of the hydraulic generator is abnormal.

[0012] Compared with the prior art, the beneficial effects of the method and system for evaluating the working state of a hydraulic generator according to an embodiment of the present invention are as follows: By determining the key operating parameters and performance indicators, the present invention can evaluate the safe operating state of the hydraulic generator to help prevent potential safety hazards; Analyzing and evaluating the performance indicators of the hydraulic generator according to the present invention helps to understand the power generation efficiency and performance of the equipment and further optimize the operation; By integrating the operating safety state evaluation value and the performance evaluation value, the present invention determines the working state evaluation value of the hydraulic generator to realize the comprehensive evaluation of the overall working state of the equipment; According to the working state evaluation value, the present invention determines the working state level and issues a warning prompt in a timely manner to help the operation and maintenance personnel quickly respond to abnormal situations and prevent equipment damage and production interruption; By continuously monitoring and evaluating the working state of the hydraulic generator, the present invention can timely detect problems and optimize and improve them to improve the operation efficiency and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic flow structure diagram of the method for evaluating the working state of a hydraulic generator according to an embodiment of the present invention; Figure 2 is a schematic composition diagram of the system for evaluating the working state of a hydraulic generator according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following further describes in detail the specific embodiments of the present application with reference to the drawings and embodiments. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0015] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the platform or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0016] The terms "", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "", "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, "a plurality" means two or more.

[0017] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0018] As Figure 1 shown, in an embodiment of the present application, a method for evaluating the working state of a hydraulic generator is provided, including: S100: Obtain the operation monitoring parameter data of the hydraulic generator, analyze and screen the operation monitoring parameter data, and determine the key operation parameters affecting the safe operation of the hydraulic generator; S200: Analyze and evaluate the operation safety state of the hydraulic generator based on the data corresponding to the key operation parameters to obtain the operation safety state evaluation value of the hydraulic generator; S300: Obtain the performance index data of the hydraulic generator, analyze and evaluate the performance index data to obtain the performance evaluation value of the hydraulic generator; S400: Determine the working state evaluation value of the hydraulic generator based on the operation safety state evaluation value and the performance evaluation value, and determine the working state level of the hydraulic generator according to the working state evaluation value; S500: Judge whether the working state of the hydraulic generator is normal according to the working state level, and issue a warning prompt after judging that the working state of the hydraulic generator is abnormal.

[0019] Furthermore, by determining the key operation parameters and performance indicators, the present invention can evaluate the safe operation state of the hydraulic generator to help prevent potential safety hazards; the present invention analyzes and evaluates the performance indicators of the hydraulic generator, which helps to understand the power generation efficiency and performance of the equipment and further optimize the operation; the present invention determines the working state evaluation value of the hydraulic generator by comprehensively considering the operation safety state evaluation value and the performance evaluation value, realizing the comprehensive evaluation of the overall working state of the equipment; the present invention determines the working state level according to the working state evaluation value and issues a warning prompt in a timely manner to help the operation and maintenance personnel quickly respond to abnormal situations and prevent equipment damage and production interruption; by continuously monitoring and evaluating the working state of the hydraulic generator, the present invention can timely discover problems and optimize and improve them, improving the operation efficiency and reliability of the equipment.

[0020] In an embodiment of the present application, a method for evaluating the operating state of a hydraulic generator is provided. The method includes obtaining the operation monitoring parameter data of the hydraulic generator, analyzing and screening the operation monitoring parameter data, and determining the key operation parameters affecting the safe operation of the hydraulic generator, including: obtaining the operation monitoring parameter data of the hydraulic generator, determining the operation parameters included in the operation monitoring parameter data, and dividing the operation monitoring parameter data into several operation parameter data groups according to the operation parameters; determining the safety warning value corresponding to each preset parameter type, and screening out the data exceeding the safety warning value in each operation parameter data group; determining the number of the screened-out data, and calculating the proportion of the number of the screened-out data in the corresponding parameter data group; determining the preset proportion threshold, and determining the operation parameters corresponding to the parameter data group with the proportion exceeding the proportion threshold as the key operation parameters affecting the safe operation of the hydraulic generator.

[0021] Specifically, various monitoring parameter data are obtained from the hydraulic generator system, and these data may include parameters such as temperature, vibration, rotation speed, water flow rate, pressure, etc.; the obtained monitoring parameter data are analyzed, classified and divided according to different operation parameters to form several operation parameter data groups; for each operation parameter, a preset safety warning value is set to judge whether the data exceeds the safe range; the data exceeding the safety warning value in each operation parameter data group are screened and extracted; the number of the screened-out data is determined, and the proportion of it in the corresponding parameter data group is calculated, that is, the proportion of the data exceeding the safety warning value in the total data volume; a preset proportion threshold is set to judge which operation parameter data groups have a proportion exceeding the threshold, so as to determine the key operation parameters; according to the result that the proportion exceeds the threshold, the key operation parameters affecting the safe operation of the hydraulic generator are determined, and further analysis and processing may be required. This step can timely detect abnormal conditions exceeding the safety warning value by real-time monitoring and analyzing the operation parameter data, so as to determine the factors affecting the safe operation of the hydraulic generator, help the operation and maintenance personnel take measures in time to ensure the safe and stable operation of the hydraulic generator. This method can improve the reliability and safety of equipment operation, reduce the losses caused by potential failures, and improve production efficiency and equipment utilization rate.

[0022] In an embodiment of the present application, a method for evaluating the operating state of a hydraulic generator is provided. The operating safety state of the hydraulic generator is analyzed and evaluated based on the data corresponding to the key operating parameters, and an evaluation value of the operating safety state of the hydraulic generator is obtained, including: obtaining an operating parameter data group corresponding to the key operating parameters, and calculating the average value of all data exceeding the safety warning value in the operating parameter data group corresponding to the key operating parameters; performing an evaluation and value-taking on the average value to obtain a safety evaluation value corresponding to each key operating parameter; determining the proportion of the data exceeding the safety warning value in the key operating parameters and the corresponding operating parameter data group, and using the proportion as the weight corresponding to each key operating parameter; performing a weighted summation calculation on the safety evaluation values corresponding to each key operating parameter and the weights to obtain an evaluation value of the operating safety state of the hydraulic generator.

[0023] Specifically, from the key operating parameters determined previously that affect the safe operation of the hydraulic generator, obtain the corresponding operating parameter data group, and calculate the average value of all data exceeding the safety warning value in each key operating parameter data group; for each key operating parameter, perform an evaluation and value-taking according to the average value to obtain a safety evaluation value corresponding to each key operating parameter; calculate the proportion of the data exceeding the safety warning value in each key operating parameter data group, and use the proportion as the weight corresponding to each key operating parameter; perform a weighted summation calculation on the safety evaluation values corresponding to each key operating parameter and the weights to obtain an evaluation value of the operating safety state of the hydraulic generator. This step can more comprehensively evaluate the operating state of the hydraulic generator through the comprehensive processing of the average value and the safety evaluation value of the key operating parameter data, not only considering the situation where the parameters exceed the safety warning value, but also combining the data distribution and weights; using the proportion of the data exceeding the safety warning value as the weight can more accurately reflect the influence degree of each key operating parameter on the safe operation of the hydraulic generator, making the evaluation more practical; by calculating the average value, the safety evaluation value and the weight, the evaluation process is quantified, providing a clear evaluation result for the operation and maintenance personnel, helping to detect problems in a timely manner, prevent failures, and improve the safety and reliability of the equipment. This method can help the operation and maintenance personnel more accurately and comprehensively evaluate the operating safety state of the hydraulic generator, provide a scientific basis for the operation and maintenance decision-making, and further improve the operation efficiency and safety of the equipment.

[0024] In an embodiment of the present application, a method for evaluating the operating state of a hydraulic generator is provided. The method includes obtaining performance index data of the hydraulic generator, analyzing and evaluating the performance index data to obtain a performance evaluation value of the hydraulic generator, and specifically includes: obtaining performance index data of the hydraulic generator, where the performance index data includes output power data and efficiency data, and respectively calculating the average values of the output power data and the efficiency data to obtain an average output power value and an average efficiency value; obtaining a preset average standard output power value and an average standard efficiency value, and respectively calculating the differences between the average output power value and the average standard output power value and between the average efficiency value and the average standard efficiency value to obtain an output power difference and an efficiency difference; respectively evaluating the output power difference and the efficiency difference to obtain an output power evaluation value and an efficiency evaluation value; and adding the output power evaluation value and the efficiency evaluation value to calculate the performance evaluation value of the hydraulic generator.

[0025] Specifically, output power data and efficiency data are obtained from the hydraulic generator system, and these data are important indicators for evaluating the performance of the hydraulic generator; the average values of the output power data and the efficiency data are respectively calculated to obtain an average output power value and an average efficiency value; a preset average standard output power value and an average standard efficiency value are obtained, and the differences between the average output power value and the average standard output power value and between the average efficiency value and the average standard efficiency value are respectively calculated to obtain an output power difference and an efficiency difference; the output power difference and the efficiency difference are evaluated to obtain an output power evaluation value and an efficiency evaluation value; and the output power evaluation value and the efficiency evaluation value are added to calculate the performance evaluation value of the hydraulic generator. By considering two key indicators, output power and efficiency, this step can comprehensively evaluate the performance of the hydraulic generator and reflect its performance in terms of energy conversion and utilization efficiency; comparing the actual average value with the preset standard value can clearly understand whether the performance of the hydraulic generator meets the expectations, which helps to promptly discover problems and make adjustments; by calculating the differences and evaluation values, the performance evaluation process is quantified, providing intuitive performance evaluation results for maintenance personnel, which helps to formulate improvement measures and improve equipment performance; adding the output power evaluation value and the efficiency evaluation value to calculate the performance evaluation value can comprehensively consider the importance of the two indicators and provide a more comprehensive reference basis for decision-making. This method can help maintenance personnel fully understand the performance of the hydraulic generator, promptly discover problems and take measures to improve the performance and efficiency of the equipment, and ensure the stable operation of the hydraulic generator.

[0026] In an embodiment of the present application, a method for evaluating the working state of a hydraulic generator is provided. Determining the working state evaluation value of the hydraulic generator based on the operation safety state evaluation value and the performance evaluation value includes: obtaining the safety state evaluation value and the performance evaluation value, and performing a weighted summation calculation based on the safety state evaluation value, the performance evaluation value, and their corresponding preset weights to obtain the working state evaluation value of the hydraulic generator.

[0027] Specifically, according to the safety state evaluation and performance evaluation methods introduced previously, the safety state evaluation value and the performance evaluation value of the hydraulic generator are obtained respectively; during the evaluation process, weights are set for the safety state and the performance respectively to reflect their importance in the working state evaluation; the safety state evaluation value is multiplied by the corresponding safety state weight, and the performance evaluation value is multiplied by the corresponding performance weight, and then the two are added together to obtain the working state evaluation value of the hydraulic generator. This step combines the safety state evaluation value and the performance evaluation value, and can comprehensively evaluate the working state of the hydraulic generator, considering not only the safety performance, but also the operation efficiency and performance of the equipment; by setting the preset weights, the importance of the safety state and the performance in the working state evaluation can be adjusted according to the actual situation, making the evaluation more in line with the actual needs; through the weighted summation calculation, the safety state and performance evaluation results can be quantified, providing an intuitive working state evaluation value for the operation and maintenance personnel, which helps to quickly identify problems and formulate improvement measures; after obtaining the working state evaluation value, the corresponding operation and maintenance strategies can be formulated according to the evaluation results, optimizing the equipment operation, improving the overall performance and safety of the hydraulic generator. This method can help the operation and maintenance personnel to more comprehensively and accurately evaluate the working state of the hydraulic generator, provide a scientific basis for decision-making, and thus ensure the stable operation and performance improvement of the equipment.

[0028] In an embodiment of the present application, a method for evaluating the working state of a hydraulic generator is provided. Determining the working state level of the hydraulic generator according to the working state evaluation value includes: presetting the corresponding relationship between the working state level - working state evaluation value interval, where for each working state evaluation value interval in the corresponding relationship between the working state level - working state evaluation value interval, a corresponding working state level is associated; obtaining the working state evaluation value of the hydraulic generator, and based on the mapping relationship of the working state evaluation value interval to which the working state evaluation value belongs in the corresponding relationship between the working state level - working state evaluation value interval, selecting the working state level corresponding to the working state evaluation value interval as the working state level corresponding to the hydraulic generator.

[0029] Specifically, for each working state evaluation value interval, a corresponding working state level is set, and a mapping relationship between the working state level and the working state evaluation value interval is established; according to the previous working state evaluation method, the working state evaluation value of the hydraulic generator is obtained; according to the working state evaluation value interval to which the working state evaluation value of the hydraulic generator belongs, the corresponding working state level is found within the corresponding relationship between the working state level and the working state evaluation value interval, and this working state level is used as the working state level corresponding to the hydraulic generator. By setting the corresponding relationship between the working state level and the working state evaluation value interval in this step, the standardized evaluation of the working state is realized, enabling different evaluation values to be uniformly mapped to the corresponding levels, which is convenient for comparison and analysis; after mapping the working state evaluation value to the corresponding working state level, the working state of the hydraulic generator can be intuitively understood, simplifying the expression and understanding of the state evaluation result; according to the mapped working state level, important information about the current working state of the hydraulic generator can be provided to the operation and maintenance personnel, which helps to formulate corresponding maintenance and optimization measures; combined with the previous safety state evaluation, performance evaluation and working state evaluation, the operation situation of the hydraulic generator can be comprehensively evaluated, providing a more comprehensive reference basis for equipment management and operation and maintenance decision-making. This method can help the operation and maintenance personnel better understand and evaluate the working state of the hydraulic generator, provide more accurate guidance for equipment management and maintenance, and improve the reliability and performance of the equipment.

[0030] In an embodiment of the present application, a method for evaluating the working state of a hydraulic generator is provided. It is judged whether the working state of the hydraulic generator is normal according to the working state level, and a warning prompt is issued after judging that the working state of the hydraulic generator is abnormal, including: obtaining a preset warning working state level, and judging whether the working state level exceeds the warning working state level; if the working state level does not exceed the warning working state level, it is judged that the working state of the hydraulic generator is normal; if the working state level exceeds the warning working state level, it is judged that the working state of the hydraulic generator is abnormal; a warning prompt is issued after judging that the working state of the hydraulic generator is abnormal, and the warning prompt includes sending the current working state level to the workbench and giving an audible and visual prompt.

[0031] Specifically, a set of early warning working state levels are preset in the system to identify the state level thresholds that may have problems; the working state level of the hydraulic generator is compared with the early warning working state levels to determine whether it exceeds the early warning level; if the working state level does not exceed the early warning working state levels, the system determines that the working state of the hydraulic generator is normal; if the working state level exceeds the early warning working state levels, the system determines that the working state of the hydraulic generator is abnormal; when the working state is abnormal, the system issues an early warning prompt, including sending the current working state level to the workbench for the operator to view and giving an audible and visual prompt to attract attention. By setting the early warning working state levels, the system can monitor the working state of the hydraulic generator in real time, detect abnormal situations in a timely manner and make responses, which helps to prevent the occurrence of potential failures; the system can automatically judge whether the working state of the hydraulic generator is normal, reducing the burden on the operator. At the same time, it can issue an early warning prompt in a timely manner in case of abnormal situations, improving the sensitivity to abnormal situations; by sending the current working state level to the workbench and giving an audible and visual prompt, the abnormal situation is effectively conveyed, improving the operator's awareness of the equipment state and reaction speed; timely early warning prompts help to reduce equipment failures and damages, improving the reliability and stability of the hydraulic generator. At the same time, it is also beneficial to formulate timely maintenance plans, reduce downtime. This method can help improve the operation safety and stability of the hydraulic generator, reduce potential risks, ensure the normal operation of the equipment, while reducing maintenance costs and improving production efficiency.

[0032] As Figure 2 shown, in the embodiment of the present application, a working state evaluation system for a hydraulic generator is provided, including: an acquisition module for acquiring the operation monitoring parameter data of the hydraulic generator, analyzing and screening the operation monitoring parameter data, and determining the key operation parameters affecting the safe operation of the hydraulic generator; a first evaluation module for analyzing and evaluating the operation safety state of the hydraulic generator based on the data corresponding to the key operation parameters to obtain an operation safety state evaluation value of the hydraulic generator; a second evaluation module for acquiring the performance index data of the hydraulic generator, analyzing and evaluating the performance index data, and obtaining a performance evaluation value of the hydraulic generator; a determination module for determining a working state evaluation value of the hydraulic generator based on the operation safety state evaluation value and the performance evaluation value, and determining the working state level of the hydraulic generator according to the working state evaluation value; a judgment module for judging whether the working state of the hydraulic generator is normal according to the working state level, and issuing an early warning prompt after judging that the working state of the hydraulic generator is abnormal.

[0033] In summary, the embodiments of the present invention provide a method and system for evaluating the working state of a hydraulic generator, which include: acquiring and analyzing the operation monitoring parameter data of the hydraulic generator to determine the key operation parameters affecting the safe operation of the hydraulic generator; analyzing and evaluating the operation safety state of the hydraulic generator based on the data corresponding to the key operation parameters to obtain an operation safety state evaluation value; acquiring the performance index data of the hydraulic generator, and analyzing and evaluating it to obtain a performance evaluation value; determining the working state evaluation value of the hydraulic generator based on the operation safety state evaluation value and the performance evaluation value, and determining the working state level according to the working state evaluation value; judging whether the working state of the hydraulic generator is normal according to the working state level, and sending a warning prompt after judging abnormally. The present invention guides the operation of the hydraulic generator by comprehensively evaluating the working state of the hydraulic generator, which can improve the safety, reliability and efficiency of the equipment and ensure its continuous and stable operation.

[0034] Finally, it should be noted that: Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

[0035] The above is only one embodiment of the present invention, but it cannot be used to limit the scope of the present invention. Any structural changes made according to the present invention, as long as they do not lose the essence of the present invention, should be regarded as falling within the protection scope of the present invention and being restricted. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process and related descriptions of the above-described platform can refer to the corresponding process in the foregoing platform embodiments and will not be repeated here.

[0036] The term "including" or any other similar term is intended to cover non-exclusive inclusion, so that a process, platform, article or device / platform including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, platforms, articles or devices / platforms.

[0037] So far, the technical solutions of the present invention have been described in combination with the further embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to closely related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0038] The above is only a preferred embodiment of the present invention and is not used to limit the protection scope of the present invention.

Claims

1. A method for evaluating the working condition of a hydroelectric generator, characterized in that: include: Obtaining the operation monitoring parameter data of the hydroelectric generator, analyzing and screening the operation monitoring parameter data, and determining the key operation parameters that affect the safe operation of the hydroelectric generator; Analyze and evaluate the operational safety status of the hydroelectric generator based on the data corresponding to the key operational parameters to obtain an operational safety status evaluation value of the hydroelectric generator; Acquire performance index data of the hydroelectric generator, analyze and evaluate the performance index data, and obtain a performance evaluation value of the hydroelectric generator; Determine a working state evaluation value of the hydroelectric generator based on the operational safety state evaluation value and the performance evaluation value, and determine a working state grade of the hydroelectric generator according to the working state evaluation value; Whether the working state of the hydroelectric generator is normal is judged according to the working state level, and an early warning prompt is issued when the working state of the hydroelectric generator is judged to be abnormal.

2. A method for evaluating the working condition of a hydroelectric generator according to claim 1, characterized in that: The step of obtaining the operation monitoring parameter data of the hydroelectric generator, analyzing and screening the operation monitoring parameter data, and determining the key operation parameters that affect the safe operation of the hydroelectric generator includes: Acquire operation monitoring parameter data of the hydroelectric generator, determine the operation parameters contained in the operation monitoring parameter data, and divide the operation monitoring parameter data into a plurality of operation parameter data groups according to the operation parameters; Determine the pre-set safety warning value corresponding to each parameter type, and filter out the data exceeding the safety warning value in each operating parameter data group; Determine the number of filtered data, and calculate the proportion of the number of filtered data in the corresponding parameter data group; A preset proportion threshold is determined, and the operating parameters corresponding to the parameter data group whose proportion value exceeds the proportion threshold are determined as key operating parameters that affect the safe operation of the hydroelectric generator.

3. A method for evaluating the working condition of a hydroelectric generator according to claim 2, characterized in that: The step of analyzing and evaluating the operational safety status of the hydroelectric generator based on the data corresponding to the key operational parameters to obtain an operational safety status evaluation value of the hydroelectric generator includes: Obtaining an operating parameter data group corresponding to the key operating parameter, and calculating an average value of all data exceeding the safety warning value in the operating parameter data group corresponding to the key operating parameter; Evaluate and take values ​​for the average values ​​to obtain the safety assessment values ​​corresponding to each key operating parameter; Determine the proportion of data exceeding the safety warning value in the key operating parameters and the corresponding operating parameter data groups, and use the proportion as the weight corresponding to each key operating parameter; The safety assessment value corresponding to each key operating parameter is weightedly added to the weight to obtain the operating safety status assessment value of the hydroelectric generator.

4. A method for evaluating the working condition of a hydroelectric generator according to claim 3, characterized in that: The step of obtaining the performance index data of the hydroelectric generator, analyzing and evaluating the performance index data, and obtaining the performance evaluation value of the hydroelectric generator includes: Acquire performance index data of the hydroelectric generator, the performance index data including output power data and efficiency data, and calculate the average values ​​of the output power data and the efficiency data respectively to obtain the output power average value and the efficiency average value; Obtaining a preset standard output power average value and a standard efficiency average value, and respectively calculating the difference between the output power average value and the standard output power average value and the difference between the efficiency average value and the standard efficiency average value, to obtain an output power difference value and an efficiency difference value; The output power difference and the efficiency difference are evaluated respectively to obtain an output power evaluation value and an efficiency evaluation value; The output power evaluation value and the efficiency evaluation value are added together to obtain the performance evaluation value of the hydroelectric generator.

5. A method for evaluating the working status of a hydroelectric generator according to claim 4, characterized in that: The step of determining the working state evaluation value of the hydroelectric generator based on the operation safety state evaluation value and the performance evaluation value comprises: A safety status evaluation value and a performance evaluation value are obtained, and a weighted addition calculation is performed based on the safety status evaluation value and the performance evaluation value and their corresponding preset weights to obtain a working status evaluation value of the hydroelectric generator.

6. A method for evaluating the working condition of a hydroelectric generator according to claim 5, characterized in that: Determining the working state level of the hydroelectric generator according to the working state evaluation value includes: Presetting a corresponding relationship between a working state level and a working state evaluation value interval, wherein the corresponding relationship between a working state level and a working state evaluation value interval is associated with a corresponding working state level for each working state evaluation value interval; The working state evaluation value of the hydroelectric generator is obtained, and based on the mapping relationship between the working state evaluation value interval to which the working state evaluation value belongs and the corresponding relationship between the working state evaluation value interval, the working state level corresponding to the working state evaluation value interval is selected as the working state level corresponding to the hydroelectric generator.

7. A method for evaluating the working condition of a hydroelectric generator according to claim 6, characterized in that: The method of judging whether the working state of the hydroelectric generator is normal according to the working state level and issuing an early warning prompt after judging that the working state of the hydroelectric generator is abnormal includes: Obtain a preset warning working state level, and determine whether the working state level exceeds the warning working state level; If the working state level does not exceed the warning working state level, it is judged that the working state of the hydroelectric generator is normal; If the working state level exceeds the warning working state level, it is determined that the working state of the hydroelectric generator is abnormal; After determining that the working state of the hydroelectric generator is abnormal, an early warning prompt is issued, which includes sending the current working state level to the workbench and performing sound and light prompts.

8. A hydroelectric generator working status assessment system, characterized in that: include: An acquisition module is used to acquire the operation monitoring parameter data of the hydroelectric generator, analyze and screen the operation monitoring parameter data, and determine the key operation parameters that affect the safe operation of the hydroelectric generator; A first evaluation module is used to analyze and evaluate the operation safety status of the hydroelectric generator based on the data corresponding to the key operation parameters to obtain an evaluation value of the operation safety status of the hydroelectric generator; The second evaluation module is used to obtain the performance index data of the hydroelectric generator, analyze and evaluate the performance index data, and obtain the performance evaluation value of the hydroelectric generator; A determination module, used to determine a working state evaluation value of the hydroelectric generator based on the operational safety state evaluation value and the performance evaluation value, and determine a working state grade of the hydroelectric generator according to the working state evaluation value; The judgment module is used to judge whether the working state of the hydroelectric generator is normal according to the working state level, and issue an early warning prompt after judging that the working state of the hydroelectric generator is abnormal.

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