Pumped storage power station machine-passing sediment monitoring method

Abstract

The invention relates to the technical field of sediment measurement, and discloses a pumped storage power station machine-passing sediment monitoring method, which is characterized in that a measuring instrument is arranged on the side wall of a drainage area of a public water supply main pipe of a pumped storage power station so as to measure machine-passing sediment-containing water flow of the public water supply main pipe; the method comprises the steps that a valve of a public water supply main pipe is opened, and the opening degree of the valve of the public water supply main pipe is set to be a first opening degree; the first opening is greater than or equal to an opening threshold; the opening threshold value is used for keeping the water depth of the drainage area at the target depth. Obtaining a target sand content measurement value in a set time period; the target sand content measured value is acquired by a measuring instrument in a drainage area within a set time period; and determining the sand content variation trend of the pumped storage power station according to the target sand content measurement value in the set time period. The sand content of the pumped storage power station can be directly and continuously monitored in real time for a long time, and the normal work of the power station is not influenced.

Description

Technical Field

[0001] The invention relates to the technical field of sediment measurement, and in particular to a method for monitoring sediment passing through a pumped storage power station. Background Art

[0002] At present, the common method for monitoring the sediment content of pumped storage power stations is to take samples near the inlet / outlet of the pumped storage power station, or to take water samples at the vertebral canal door and volute door of the generator set. However, due to the large flow rate of pumping / power generation near the inlet / outlet, the flow state is quite complex, and the randomness of sampling in this area is very large. In addition, the water level changes greatly near the inlet and outlet, the local flow velocity is large, and there are also great hidden dangers to the safety of measuring instruments and measurement personnel. The vertebral canal door and volute door of the generator set can release water for a short time for sampling, but due to the high pressure, generally speaking, for safety reasons, the pumped storage power station does not allow the valve to be opened. Both of the above methods can only measure the sediment passing through the machine at a certain moment or a few moments, do not have the conditions for long-term detection, are relatively random, and have certain safety issues.

[0003] Therefore, there is an urgent need for a method for monitoring sediment passing through a pumped storage power station, which can perform long-term sediment detection without affecting the normal operation of the power station. Summary of the invention

[0004] In view of this, the present application provides a method for monitoring sediment passing through a pumped-storage power station, which can continuously monitor the sediment content passing through the pumped-storage power station in real time for a long time. The technical solution is as follows.

[0005] In a first aspect, the present invention provides a method for monitoring sediment passing through a pumped storage power station, wherein a measuring instrument is arranged at a side wall of a drainage area of ​​a public water supply main of the pumped storage power station to measure the sediment-containing water flow passing through the public water supply main; the method comprises:

[0006] Opening a valve of a public water supply main, and setting the opening of the valve of the public water supply main to a first opening; the first opening is greater than or equal to an opening threshold; the opening threshold is used to maintain the water depth of the drainage area at a target depth;

[0007] Obtaining a target sediment content measurement value within a set time period; the target sediment content measurement value is obtained by collecting data from the drainage area through the measuring instrument within the set time period;

[0008] According to the target sediment content measurement value within the set time period, the sediment content change trend of the pumped storage power station is determined.

[0009] In an optional embodiment, the method further includes:

[0010] Obtain a first sediment content measurement value; the first sediment content measurement value is collected by the measuring instrument at multiple times in the set time period in the drainage area;

[0011] Obtain a second sand content measurement value; the second sand content measurement value is obtained by obtaining a sample to be tested from the drainage in the drainage area at the multiple time points, and measuring the sand content of the sample to be tested by a drying method;

[0012] According to the errors and correlation coefficients of the first sand content measurement value and the second sand content measurement value, the measurement parameters of the measuring instrument are adjusted or the first sand content measurement value is corrected.

[0013] In an optional embodiment, adjusting the measurement parameters of the measuring instrument or correcting the first sediment content measurement value according to the errors and correlation coefficients of the first sediment content measurement values ​​at the multiple moments and the second sediment content measurement values ​​at the multiple moments includes:

[0014] For each of the multiple moments, obtaining a relative error and a correlation coefficient between the first sediment content measurement value and the second sediment content measurement value;

[0015] Generate a target deviation parameter according to the relative errors corresponding to the multiple moments;

[0016] Generate a target correlation coefficient according to the correlation coefficients corresponding to the multiple moments;

[0017] According to the target deviation parameter and the target correlation coefficient, the measurement parameters of the measuring instrument are adjusted or the first sand content measurement value is corrected.

[0018] In an optional implementation, generating a target deviation parameter includes:

[0019] According to the relative errors respectively corresponding to the multiple moments, the relative error between the first sand content measurement value and the second sand content measurement value is calculated to obtain the target deviation parameter.

[0020] In an optional implementation, generating a target correlation coefficient includes:

[0021] A target correlation coefficient is obtained according to a data sequence of the first sand content measurement value and the second sand content measurement value.

[0022] In an optional implementation, adjusting the measurement parameters of the measuring instrument or correcting the first sediment content measurement value according to the target deviation parameter and the target correlation coefficient includes:

[0023] If the target deviation parameter exceeds the relative error or the target correlation coefficient does not exceed the coefficient threshold, adjusting the measurement parameter of the measuring instrument;

[0024] If the target deviation parameter does not exceed the relative error and the target correlation coefficient exceeds the coefficient threshold, the first sediment content measurement value is corrected.

[0025] The method for monitoring sediment passing through a pumped storage power station of the present invention samples the drainage in the drainage area, measures the sediment content of the sample by a drying method, and determines the accuracy of the measuring instrument according to the measurement results of the measuring instrument and the drying method, that is, whether it is necessary to adjust the measurement parameters of the measuring instrument or whether it is necessary to correct the first sediment content measurement value. According to the two measurement results, the measurement deviation and correlation coefficient of the measuring instrument can be obtained. According to the relationship between the relative error and the relative error, and the relationship between the correlation coefficient and the coefficient threshold, it can be determined whether it is necessary to adjust the measurement parameters of the measuring instrument or correct the first sediment content measurement value.

[0026] In an optional implementation, the relative error threshold is 10%, and the coefficient threshold is 0.95.

[0027] The present invention provides a method for monitoring sediment passing through a pumped storage power station, which has the following advantages.

[0028] The method for monitoring sediment passing through a pumped storage power station of the present invention is applied to a pumped storage power station, and a measuring instrument is arranged at the side wall of the drainage area of ​​the public water supply main of the pumped storage power station to measure the drainage of the public water supply main. When it is necessary to measure the sediment passing through the machine, the valve of the public water supply main is opened, and the opening of the valve of the public water supply main is set to a first opening. The first opening is greater than or equal to the opening threshold; the opening threshold is used to maintain the water depth of the drainage area at a target depth. Since the measuring instrument is arranged on the side wall of the drainage area, it is necessary to make the water depth of the drainage area reach the immersion depth of the measuring instrument before the sand content can be measured by the measuring instrument. When the drainage depth of the drainage area immerses the measuring instrument, the target sand content measurement value within the set time period is obtained; the target sand content measurement value is obtained by the measuring instrument collecting the drainage area within the set time period; according to the target sand content measurement value within the set time period, the sand content change trend of the pumped storage power station is determined. Thereby, the monitoring of sediment passing through the pumped storage power station is realized. In addition, in order to verify the measurement accuracy of the measuring instrument, the detection method of the present invention also samples the drainage in the drainage area, and uses the drying method to measure the sediment content of the sampled drainage, records the sampling time after sampling, reads the measurement data at the same time in the time period measured by the measuring instrument, compares the measurement results of the measuring instrument and the measurement results of the sampling measurement, and can know whether the measurement accuracy of the measuring instrument is accurate according to the comparison result, and determine whether it is necessary to adjust the measurement parameters of the measuring instrument or correct the first sediment content measurement value. Compared with the traditional indirect method of taking water samples to test the sediment content of the pumped storage power station, the sediment monitoring method of the present invention can directly and continuously monitor the sediment content of the pumped storage power station for a long time in real time, and can provide the most direct basis for the decision-making and effect of the sand prevention and silt reduction plan in the sandy river. Moreover, the measurement method is easy to operate, and the water discharged to the drainage canal from the public water supply main that can be opened normally is monitored. Compared with the traditional method, it basically does not affect the normal production of the power station, and there is basically no safety hazard of the instrument and the monitoring personnel.

[0029] In a second aspect, the present invention provides a device for monitoring sediment passing through a pumped storage power station, wherein a measuring instrument is arranged at a side wall of a drainage area of ​​a public water supply main of the pumped storage power station to measure drainage of the public water supply main; the device comprises:

[0030] A control module, used for opening a valve of a public water supply main and setting the opening of the valve of the public water supply main to a first opening; the first opening is greater than or equal to an opening threshold; the opening threshold is used for maintaining the water depth of the drainage area at a target depth;

[0031] An acquisition module is used to acquire a target sediment content measurement value within a set time period; the target sediment content measurement value is obtained by collecting data from the drainage area through the measuring instrument within the set time period;

[0032] The generation module is used to determine the sediment content change trend of the pumped storage power station according to the target sediment content measurement value within the set time period.

[0033] In an optional embodiment, the device further comprises:

[0034] An adjustment module is used to obtain first sediment content measurement values ​​at multiple times; the first sediment content measurement values ​​are collected by the measuring instrument for the drainage area at multiple times within the set time period;

[0035] Obtaining second sand content measurement values ​​at multiple moments; the second sand content measurement values ​​are obtained by obtaining a sample to be tested from drainage in the drainage area at the multiple moments, and measuring the sand content of the sample to be tested by a drying method;

[0036] According to the errors and correlation coefficients of the first sediment content measurement values ​​at the multiple moments and the second sediment content measurement values ​​at the multiple moments, the measurement parameters of the measuring instrument are adjusted or the first sediment content measurement values ​​are corrected.

[0037] In an optional implementation, the adjustment module is specifically used to:

[0038] For each of the multiple moments, obtaining a relative error and a correlation coefficient between the first sediment content measurement value and the second sediment content measurement value;

[0039] Generate a target deviation parameter according to the relative errors corresponding to the multiple moments;

[0040] Generate a target correlation coefficient according to the correlation coefficients corresponding to the multiple moments;

[0041] According to the target deviation parameter and the target correlation coefficient, the measurement parameters of the measuring instrument are adjusted or the first sand content measurement value is corrected.

[0042] In an optional implementation, the adjustment module is further used to:

[0043] According to the relative errors respectively corresponding to the multiple moments, the relative error between the first sand content measurement value and the second sand content measurement value is calculated to obtain the target deviation parameter.

[0044] In an optional implementation, the adjustment module is further used to:

[0045] For each of the multiple moments, calculating the ratio between the first sediment content measurement value and the second sediment content measurement value to obtain a correlation coefficient;

[0046] A target correlation coefficient is obtained according to the correlation coefficients corresponding to the multiple moments.

[0047] In an optional implementation, the adjustment module is further used to:

[0048] If the target deviation parameter exceeds the relative error or the target correlation coefficient does not exceed the coefficient threshold, adjusting the measurement parameter of the measuring instrument;

[0049] If the target deviation parameter does not exceed the relative error and the target correlation coefficient exceeds the coefficient threshold, the first sediment content measurement value is corrected.

[0050] In a third aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the method for monitoring sediment passing through a pumped-storage power station according to the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0051] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the method for monitoring sediment passing through a pumped-storage power station according to the first aspect or any corresponding embodiment thereof.

[0052] In a fifth aspect, the present invention provides a computer program product, comprising computer instructions for causing a computer to execute the method for monitoring sediment passing through a pumped-storage power station according to the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0054] Figure 1 It is a schematic structural diagram of a pumped storage power station according to an exemplary embodiment.

[0055] Figure 2 is a schematic diagram of the setting position of a measuring tool according to an exemplary embodiment.

[0056] Figure 3 The present invention is a schematic diagram of a method flow of a method for monitoring sediment passing through a pumped storage power station according to an exemplary embodiment.

[0057] Figure 4 It is a structural schematic diagram of a pumped storage power station sediment monitoring device provided in an embodiment of the present application.

[0058] Figure 5 It is a structural schematic diagram of a computer device provided by an optional embodiment of the present invention. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0060] It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0061] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0062] In an embodiment of the present application, "predefinition" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device). The present application does not limit its specific implementation method.

[0063] At present, the common method for monitoring the sediment content of pumped storage power stations is to take samples near the inlet / outlet of the pumped storage power station, or to take water samples at the vertebral canal door and volute door of the generator set. However, due to the large flow rate of pumping / power generation near the inlet / outlet, the flow state is quite complex, and the randomness of sampling in this area is very large. In addition, the water level changes greatly near the inlet and outlet, the local flow velocity is large, and there are also great hidden dangers to the safety of measuring instruments and measurement personnel. The vertebral canal door and volute door of the generator set can release water for a short time for sampling, but due to the high pressure, generally speaking, for safety reasons, the pumped storage power station does not allow the valve to be opened. Both of the above methods can only measure the sediment passing through the machine at a certain moment or a few moments, do not have the conditions for long-term detection, are relatively random, and have certain safety issues.

[0064] The monitoring of sediment content in pumped storage power stations must not affect the normal production process of the pumped storage power station. The safety of personnel and equipment must be guaranteed, and monitoring can be carried out for a long time. Figure 1 As shown, there are two types of normally open valves in the volute layer of the pumped storage power station: the public water supply main valve and the technical water supply main valve. Generally speaking, the water sources of the two mains are taken from the water near the inlet and outlet of the reservoir. The technical water supply main is for unit water supply, and provides cooling water to each user of the unit (upper guide, thrust, air cooler, water guide, main shaft seal, main transformer, etc.); the public water supply main is for the public parts of the power plant, such as air conditioning water, fire fighting water, domestic water, etc. The public water supply main takes water from behind the tailwater gate, and the technical water supply main takes water from in front of the gate, refer to Figure 1 The two water pipes are connected by a connecting valve and can be used as backup for each other. The difference is that when the pumped storage power station is shut down, the tailwater gate is closed and the technical water supply main may not be able to get water, while the public water supply main generally needs to get water all the time unless the power station is under maintenance. In terms of monitoring time continuity, the solution of taking the public water supply main is better.

[0065] Therefore, the embodiment of the present invention provides a method for monitoring sediment passing through a pumped storage power station. The setting position of the measuring instrument is as follows: Figure 2 As shown, the measuring instrument is arranged at the side wall of the drainage area of ​​the public water supply main of the pumped storage power station to measure the drainage of the public water supply main, which can perform long-term sediment detection without affecting the normal operation of the power station.

[0066] The method flow of the method for monitoring sediment passing through a pumped storage power station in this embodiment is as follows: Figure 3 As shown, the following steps are included.

[0067] S301, open the valve of the public water supply main, and set the opening of the valve of the public water supply main to a first opening; the first opening is greater than or equal to an opening threshold; the opening threshold is used to maintain the water depth of the drainage area at a target depth.

[0068] Specifically, when it is necessary to monitor the sediment passing through the pumped storage power station, the valve of the public water supply main is opened. Since the measuring instrument is set on the side wall of the drainage area, it is necessary to adjust the opening of the public water supply main valve so that the water depth in the drainage area can immerse the measuring instrument, that is, it is necessary to adjust the opening of the public water supply main valve so that the water depth in the drainage area reaches the target depth. The opening threshold and target depth need to be determined according to the actual situation of the pumped storage power station and the specific measuring instrument used.

[0069] S302, obtaining a target sediment content measurement value within a set time period; the target sediment content measurement value is obtained by collecting data from the drainage area through the measuring instrument within the set time period.

[0070] Specifically, the measuring instrument measures the drainage area at multiple times to obtain multiple sediment content data. It can be set to measure once per second and take the average of the measured values ​​for one hour. The measuring instrument generally uses a turbidity meter, and an online turbidity sensor and a portable turbidity meter can also be used.

[0071] Optionally, if there is a signal inside the pumped storage power station building, a signal receiver can be arranged outside the building to observe the changes in the sand content passing through the machine in real time. If there is no signal or the signal is poor, the data can be saved to the memory card of the measuring instrument first, and then read regularly.

[0072] S303. Determine the sediment content change trend of the pumped-storage power station according to the target sediment content measurement value within the set time period.

[0073] Optionally, based on the measured values ​​of sediment content at multiple moments, a trend graph of sediment content changing over time can be obtained. Based on the trend graph obtained from multiple days of measurement, a certain prediction of future sediment content can be made, and the trend of sediment content changes over multiple quarters can also be statistically analyzed to formulate corresponding sand control and silt reduction plans.

[0074] In an optional implementation, the method for monitoring sediment passing through a pumped storage power station of this embodiment measures the sediment content by a measuring instrument. Before the measurement, the measuring parameters of the measuring instrument need to be set, so the measuring accuracy of the measuring instrument needs to be calibrated to confirm whether the measuring parameters of the measuring instrument need to be adjusted. Moreover, due to the influence of factors such as temperature fluctuations, the measuring instrument also needs to be calibrated regularly to ensure the accuracy and stability of the measurement. The drainage in the drainage area can be sampled, and the sediment content of the samples can be measured in the laboratory to determine whether the measuring parameters of the measuring instrument need to be adjusted or only the first sediment content measurement value needs to be corrected. Specifically including:

[0075] Obtain first sand content measurement values ​​at multiple moments; the first sand content measurement values ​​are collected by the measuring instrument at multiple moments in the set time period from the drainage area; obtain second sand content measurement values ​​at multiple moments; the second sand content measurement values ​​are obtained by obtaining a sample to be tested from the drainage in the drainage area at the multiple moments, and measuring the sand content of the sample to be tested by a drying method.

[0076] Specifically, when measuring the second sand content measurement value, the time of obtaining the sample to be tested should be the same as the time of measuring the first sand content measurement value, and then the sand content of the sample to be tested is measured by turbidity measurement method to obtain the second sand content measurement value.

[0077] In the above steps, the drying method for measuring sand content is a commonly used experimental method for determining the content of sand (or other particulate matter) in a sample. The basic principle is to heat the sample to remove moisture and volatile substances, and then calculate the sand content through the weight change.

[0078] According to the errors and correlation coefficients of the first sediment content measurement values ​​at the multiple moments and the second sediment content measurement values ​​at the multiple moments, the measurement parameters of the measuring instrument are adjusted or the first sediment content measurement values ​​are corrected.

[0079] Specifically, for the multiple moments, the average relative error and correlation coefficient between the first sediment content measurement value and the second sediment content measurement value are obtained; according to the average relative error and the target correlation coefficient, the measurement parameters of the measuring instrument are adjusted or the first sediment content measurement value is corrected. If the average relative error exceeds the target threshold or the target correlation coefficient does not exceed the coefficient threshold, the measurement parameters of the measuring instrument are adjusted; if the relative error does not exceed the target threshold and the correlation coefficient exceeds the coefficient threshold, the first sediment content measurement value is corrected.

[0080] In practical applications, the relative error threshold may be set to 10%, and the coefficient threshold may be set to 0.95.

[0081] In the above embodiment, the measuring instrument is arranged at the side wall of the drainage area of ​​the public water supply main of the pumped storage power station to monitor the sediment passing through the machine for a long time. If in actual application, some pumped storage power stations do not allow the turbidity meter and other measuring instruments to be fixed to the drainage channel outside the public water supply main for long-term monitoring, then this embodiment also provides an alternative solution, which is as follows.

[0082] The sediment content is measured at the inlet and outlet sections (or other representative sections, such as the reservoir inlet section or other sections above the inlet and outlet), and the data of the measuring instrument with the measurement parameters adjusted at the same time are analyzed for correlation, and the curve is fitted to obtain the relationship between the sediment content passing the machine and the sediment content of the representative section. Even if the turbidity meter placed in the drainage channel is withdrawn later, the sediment content passing the machine can be estimated based on the sediment content of the representative section.

[0083] In summary, the method for monitoring sediment passing through a pumped storage power station provided by an embodiment of the present invention is applied to a pumped storage power station, and a measuring instrument is arranged at the side wall of the drainage area of ​​the public water supply main of the pumped storage power station to measure the sediment-containing water flow passing through the public water supply main. When it is necessary to measure the sediment passing through the machine, the valve of the public water supply main is opened, and the opening of the valve of the public water supply main is set to a first opening. The first opening is greater than or equal to the opening threshold; the opening threshold is used to maintain the water depth of the drainage area at a target depth. Since the measuring instrument is arranged on the side wall of the drainage area, it is necessary to make the water depth of the drainage area reach the immersion depth of the measuring instrument before the sand content can be measured by the measuring instrument. When the drainage depth of the drainage area immerses the measuring instrument, the target sand content measurement value within the set time period is obtained; the target sand content measurement value is obtained by the measuring instrument collecting the drainage area within the set time period; according to the target sand content measurement value within the set time period, the sand content change trend of the pumped storage power station is determined. Thus, the monitoring of the sediment passing through the pumped storage power station is realized. In addition, in order to verify the measurement accuracy of the measuring instrument, the detection method of the present invention also samples the drainage in the drainage area, and uses the drying method to measure the sediment content of the sampled drainage, records the sampling time after sampling, reads the measurement data at the same time in the time period measured by the measuring instrument, compares the measurement result of the measuring instrument and the measurement result of the sampling measurement, and can know whether the measurement accuracy of the measuring instrument meets the standard according to the comparison result, and determines whether it is necessary to adjust the measurement parameters of the measuring instrument or correct the first sediment content measurement value. Compared with the traditional indirect method of taking water samples to test the sediment content of the pumped storage power station, the monitoring method of the sediment passing through the pumped storage power station of the present invention can directly and continuously monitor the sediment content of the pumped storage power station for a long time in real time, and can provide the most direct basis for the decision-making and effect of the sand prevention and silt reduction scheme in the sandy river. Moreover, the measurement method is easy to operate, and the water discharged to the drainage canal from the public water supply main that can be opened normally is monitored. Compared with the traditional method, it basically does not affect the normal production of the power station, and there is basically no safety hazard of the instrument and the monitoring personnel.

[0084] In the embodiments of the present application, a pumped storage power station sediment monitoring device is also provided, which is used to implement the above embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0085] The present application provides a device for monitoring sediment passing through a pumped storage power station. Figure 4: This is a schematic diagram of the structure of a pumped storage power station sediment monitoring device provided in an embodiment of the present application. The measuring instrument is arranged at the side wall of the drainage area of ​​the public water supply main of the pumped storage power station to measure the drainage of the public water supply main; the device includes:

[0086] The control module 401 is used to open the valve of the public water supply main and set the opening of the valve of the public water supply main to a first opening; the first opening is greater than or equal to an opening threshold; the opening threshold is used to maintain the water depth of the drainage area at a target depth;

[0087] The acquisition module 402 is used to acquire a target sediment content measurement value within a set time period; the target sediment content measurement value is obtained by collecting data from the drainage area by the measuring instrument within the set time period;

[0088] The generation module 403 is used to determine the sediment content change trend of the pumped storage power station according to the target sediment content measurement value within the set time period.

[0089] In an optional embodiment, the device further comprises:

[0090] The adjustment module 404 is used to obtain first sediment content measurement values ​​at multiple times; the first sediment content measurement values ​​are collected by the measuring instrument in the drainage area at multiple times within the set time period;

[0091] Obtaining second sand content measurement values ​​at multiple moments; the second sand content measurement values ​​are obtained by obtaining a sample to be tested from drainage in the drainage area at the multiple moments, and measuring the sand content of the sample to be tested by a drying method;

[0092] According to the errors and correlation coefficients of the first sediment content measurement values ​​at the multiple moments and the second sediment content measurement values ​​at the multiple moments, the measurement parameters of the measuring instrument are adjusted or the first sediment content measurement values ​​are corrected.

[0093] In an optional implementation, the adjustment module 404 is specifically configured to:

[0094] For each of the multiple moments, obtaining a relative error and a correlation coefficient between the first sediment content measurement value and the second sediment content measurement value;

[0095] Generate a target deviation parameter according to the relative errors corresponding to the multiple moments;

[0096] Obtaining a target correlation coefficient according to a data sequence of the first sediment content measurement value and the second sediment content measurement value;

[0097] According to the target deviation parameter and the target correlation coefficient, the measurement parameters of the measuring instrument are adjusted or the first sand content measurement value is corrected.

[0098] In an optional implementation, the adjustment module 404 is further configured to:

[0099] According to the relative errors respectively corresponding to the multiple moments, the relative error between the first sand content measurement value and the second sand content measurement value is calculated to obtain the target deviation parameter.

[0100] In an optional implementation, the adjustment module 404 is further configured to:

[0101] For each of the multiple moments, calculating the ratio between the first sediment content measurement value and the second sediment content measurement value to obtain a correlation coefficient;

[0102] A target correlation coefficient is obtained according to the correlation coefficients corresponding to the multiple moments.

[0103] In an optional implementation, the adjustment module 404 is further configured to:

[0104] If the target deviation parameter exceeds the relative error or the target correlation coefficient does not exceed the coefficient threshold, adjusting the measurement parameter of the measuring instrument;

[0105] If the target deviation parameter does not exceed the relative error or the target correlation coefficient exceeds the coefficient threshold, the first sediment content measurement value is corrected.

[0106] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0107] The pumped storage power station sediment monitoring device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0108] The embodiment of the present invention also provides a computer device having the above Figure 4 The pumped storage power station sediment monitoring device shown.

[0109] See also Figure 5 , Figure 5 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 5As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process instructions executed in the computer device, including instructions stored in or on the memory to display graphic information in a graphical user interface on an external input / output device (such as a display device coupled to an interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 5 A processor 10 is taken as an example.

[0110] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0111] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0112] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0113] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0114] The computer device also includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30 and the output device 40 may be connected via a bus or other means. Figure 5 The example of connecting through bus is taken in the following.

[0115] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0116] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0117] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for monitoring sediment passing through a pumped storage power station, characterized in that: The measuring instrument is arranged at the side wall of the drainage area of ​​the public water supply main of the pumped storage power station to measure the drainage of the public water supply main; the method comprises: Opening a valve of a public water supply main, and setting the opening of the valve of the public water supply main to a first opening; the first opening is greater than or equal to an opening threshold; the opening threshold is used to maintain the water depth of the drainage area at a target depth; Obtaining a target sediment content measurement value within a set time period; the target sediment content measurement value is obtained by collecting data from the drainage area by the measuring instrument within the set time period; According to the target sediment content measurement value within the set time period, the sediment content change trend of the pumped storage power station is determined.

2. The method according to claim 1, characterized in that The method further comprises: Obtain a first sediment content measurement value; the first sediment content measurement value is obtained by collecting data from the drainage area by the measuring instrument at multiple times within the set time period; Obtain a second sand content measurement value; the second sand content measurement value is obtained by obtaining a sample to be tested from the drainage in the drainage area at the multiple times, and measuring the sand content of the sample to be tested by a drying method; According to the relative error and the correlation coefficient of the first sediment content measurement value and the second sediment content measurement value at the same moment, the measurement parameters of the measuring instrument are adjusted or the first sediment content measurement value is corrected.

3. The method according to claim 2, characterized in that The method of adjusting the measurement parameters of the measuring instrument or correcting the first sand content measurement value according to the relative error and correlation coefficient of the first sand content measurement value and the second sand content measurement value at the same time includes: For each of the multiple moments, obtaining a relative error and a correlation coefficient between the first sediment content measurement value and the second sediment content measurement value; Generate a target deviation parameter according to the relative errors corresponding to the multiple moments respectively; Generate a target correlation coefficient according to the correlation coefficients corresponding to the multiple moments respectively; According to the target deviation parameter and the target correlation coefficient, the measurement parameters of the measuring instrument are adjusted or the first sediment content measurement value is corrected.

4. The method according to claim 3, characterized in that The generating target deviation parameter comprises: According to the relative errors corresponding to the multiple moments, the relative error between the first sand content measurement value and the second sand content measurement value is calculated to obtain the target deviation parameter.

5. The method according to claim 3, characterized in that: The generating target correlation coefficient comprises: A target correlation coefficient is obtained according to a data sequence of the first sand content measurement value and the second sand content measurement value.

6. The method according to claim 3, characterized in that The step of adjusting the measurement parameters of the measuring instrument or correcting the first sediment content measurement value according to the target deviation parameter and the target correlation coefficient includes: If the target deviation parameter exceeds the relative error threshold or the target correlation coefficient does not exceed the coefficient threshold, adjusting the measurement parameter of the measuring instrument; If the target deviation parameter does not exceed the relative error threshold and the target correlation coefficient exceeds the coefficient threshold, the first sediment content measurement value is corrected.

7. The method according to claim 6, characterized in that The relative error threshold is 10%, and the coefficient threshold is 0.

95.

8. A pumped storage power station sediment monitoring device, characterized in that: The measuring instrument is arranged at the side wall of the drainage area of ​​the public water supply main of the pumped storage power station to measure the drainage of the public water supply main; the device comprises: A control module, used to open the valve of the public water supply main, and set the opening of the valve of the public water supply main to a first opening; the first opening is greater than or equal to an opening threshold; the opening threshold is used to maintain the water depth of the drainage area at a target depth; An acquisition module is used to acquire a target sediment content measurement value within a set time period; the target sediment content measurement value is obtained by collecting data from the drainage area by the measuring instrument within the set time period; The generation module is used to determine the sediment content change trend of the pumped storage power station according to the target sediment content measurement value within the set time period.

9. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method for monitoring sediment passing through a pumped storage power station according to any one of claims 1 to 7 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the method for monitoring sediment passing through a pumped-storage power station according to any one of claims 1 to 7.

Images