System and method for simulating dispatch of power equipment based on equipment operating state

Abstract

The application provides a system and method for simulating dispatching power equipment based on equipment operation state, relates to the technical field of electrical engineering, and obtains the temperature, mass flow and viscosity information of the liquid medium by connecting the detection oil circuit to the liquid storage cavity of the immersed power equipment, and by the oil pump of the detection oil circuit constantly pumping the fluid medium in the liquid storage cavity to the temperature-flow measuring device, thereby obtaining the temperature, mass flow and indirectly obtaining the viscosity information of the liquid medium, while the voiceprint vibration monitoring device monitors the immersed power equipment by obtaining the voiceprint vibration information of the immersed power equipment, and corrects the measurement result of the temperature-flow measuring device according to the voiceprint vibration information, the information processing module judges the risk index of the immersed power equipment according to the above information, and the power dispatching module controls the load of the immersed power equipment according to the risk index. The application establishes a long-term monitoring mechanism for the immersed power equipment as a key node in the power system, thereby realizing the extension of the defense response window period.

Description

Technical Field

[0001] This invention relates to the field of electrical engineering technology, and more specifically, to a system and method for scheduling power equipment based on equipment operating status simulation. Background Technology

[0002] Immersed electrical equipment, such as oil-immersed transformers and lithium-ion battery energy storage devices, is a crucial component of modern power systems, playing a vital role. These devices rely on liquid media like insulating oil for electrical isolation and heat dissipation. Modern power systems are characterized by a high proportion of renewable energy and power electronic equipment. The output of renewable energy is subject to strong random fluctuations due to natural conditions, and the diversification of loads, such as electric vehicles and smart devices, significantly increases the difficulty of real-time power balance control. As important components and key nodes in modern power systems, these immersed electrical devices are the first to be affected by these complex operating conditions. The window between the appearance of fault precursors and the occurrence of a fault is extremely short, posing a severe challenge to defense and response. Therefore, extending the defense and response window of immersed electrical equipment has become an urgent problem to be solved in modern power systems. Summary of the Invention

[0003] This invention provides a system and method for simulating and scheduling power equipment based on equipment operating status. It improves upon the problem of short defense response window period in existing immersion power equipment, thereby extending the defense response window period.

[0004] To achieve the above objectives, in a first aspect, the present invention provides a system for simulating and scheduling power equipment based on equipment operating status. The power equipment includes an immersion power device, which includes a liquid storage chamber for storing a liquid medium, and further includes:

[0005] The detection oil circuit includes a pipeline and an oil pump. The starting end and the ending end of the pipeline are respectively connected to the liquid storage chamber, and the oil pump is connected to the pipeline.

[0006] A temperature-flow measurement device is connected to the pipeline and is used to acquire temperature information and mass flow rate information of the liquid medium.

[0007] A soundprint vibration monitoring device is provided, which is configured to correspond to the immersion power equipment. The soundprint vibration monitoring device is used to acquire the soundprint vibration information of the immersion power equipment, and the soundprint vibration monitoring device is connected to the temperature-flow measurement device.

[0008] An information processing module is connected to the immersion power equipment, the temperature-flow measurement device, and the acoustic vibration monitoring device. The information processing module is used to correct the mass flow information based on the acoustic vibration information, and output a risk index based on the corrected mass flow data, the temperature information, and the acoustic vibration information.

[0009] A power dispatch module is connected to the information processing module and the immersion power equipment. The power dispatch module controls the load of the immersion power equipment based on a risk index. During system operation, the oil pump extracts the liquid medium from the storage chamber through the pipeline and delivers it to the temperature-flow measurement device. During system operation, the oil pump operates at a fixed power. Under this condition, the temperature-flow measurement device can measure not only the temperature and mass flow rate of the liquid medium, but also the viscosity of the liquid medium at the current temperature by measuring the mass flow rate of the liquid medium pumped by the oil pump. This allows the determination of the degree of degradation of the liquid medium under the influence of the immersion power equipment, such as aging, the amount of gas or moisture mixed in, etc., thereby indirectly obtaining the operating status of the immersion power equipment and providing a basis for assessing the risk of malfunctions in the immersion power equipment. Meanwhile, the acoustic vibration monitoring device can obtain vibration and noise fluctuation information of the immersion power equipment, thereby providing correction and compensation for the temperature-flow measurement device and preventing vibration and noise from interfering with the measurement of the mass flow rate of the liquid medium. Furthermore, the acoustic vibration monitoring device can also monitor the operating status of the immersion power equipment through the sounds it emits during operation. The information processing module integrates the mass flow rate information, temperature information, and acoustic vibration information obtained by the temperature-flow measurement device and the acoustic vibration monitoring device, along with the corrected mass flow rate data, to calculate a risk index, quantifying the failure risk of the immersion power equipment. Based on the risk index, the power dispatching module can control and adjust the load of the immersion power equipment, for example, by distributing the input or output of the immersion power equipment, to mitigate the impact of abnormal offline operation of the immersion power equipment on upstream and downstream power equipment, thereby reducing the possibility of larger-scale failures.

[0010] As an optional technical solution, the number of immersion power devices is multiple, and each of the multiple immersion power devices is equipped with the detection oil circuit, temperature-flow measurement device, and acoustic vibration monitoring device. The signals of the multiple temperature-flow measurement devices and the acoustic vibration monitoring devices are connected to the same information processing module. In this technical solution, the information processing module can simultaneously obtain the operating status of multiple immersion power devices and compare them with each other. The multiple immersion power devices participating in the comparison should be operating under similar operating conditions. Under this condition, the operating data after comparison is more likely to indicate an abnormal condition compared to other abnormal groups or several groups of immersion power devices. Therefore, monitoring resources can be concentrated or prioritized for monitoring these devices.

[0011] As an optional technical solution, the immersion power equipment further includes a main body disposed within the liquid storage chamber. Multiple detection oil lines are provided, spaced apart from the main body, with the starting ends of the pipelines corresponding to the main body. Multiple temperature-flow measurement devices are also provided, each connected to one of the detection oil lines. These multiple detection oil lines can extract fluid media from different locations within the liquid storage chamber, thereby effectively monitoring local changes in the immersion power equipment.

[0012] As an optional technical solution, the temperature-flow measurement device includes a Coriolis mass flow meter with a frequency of not less than 110Hz, and the frequency difference between any two Coriolis mass flow meters is not less than 10Hz. Selecting the above-mentioned frequency for the Coriolis mass flow meter helps to avoid noise frequencies generated by factors such as magnetostriction of the iron core and the oil pump, and helps to prevent resonance from affecting the Coriolis mass flow meter. The frequency difference between multiple Coriolis mass flow meters ensures that even if the frequency of one Coriolis mass flow meter resonates due to environmental noise under certain conditions, the other Coriolis mass flow meters can still operate normally.

[0013] As an optional technical solution, the pipeline includes a fixing component, a first pipe, and a second pipe. The fixing component is spaced apart from the immersion power equipment. The first pipe is connected to the liquid storage chamber and installed on the fixing component. The first pipe is a flexible hose. One end of the second pipe is connected to the first pipe, and the other end is connected to the Coriolis mass flow meter.

[0014] The temperature-flow measurement device further includes a mounting base, which is spaced apart from the fixing member, and the Coriolis mass flow meter is mounted on the mounting base. The first pipe is configured as a flexible hose, the fixing member is disposed between the first pipe and the second pipe, and the mounting base is separate from the fixing member. This helps to prevent vibrations from the immersion power equipment from being directly transmitted to the temperature-flow measurement device through the pipeline or mounting platform, thereby improving the reliability of the measurement results of the temperature-flow measurement device.

[0015] As an optional technical solution, the acoustic vibration monitoring device includes an accelerometer connected to the information processing module and a first directional microphone. The accelerometer is mounted on the outside of the immersion power equipment facing the temperature-flow measurement device. The first directional microphone is positioned on the side of the temperature-flow measurement device near the immersion power equipment and / or the oil pump and points towards the immersion power equipment or the oil pump. The accelerometer can directly collect the vibration information of the immersion power equipment, and the first directional microphone can collect the fluctuation information of the noise generated by the immersion power equipment or the oil pump, which is superimposed and propagates in space to reach the temperature-flow measurement device. During propagation, the frequency and other characteristics of this fluctuation information may be distorted and differ from the vibration information. By setting the accelerometer and the first directional microphone, the original vibration information of the immersion power equipment and the fluctuation information of the noise propagating to the temperature-flow measurement device can be collected simultaneously, thereby making the mass flow rate information more reliably corrected.

[0016] As an optional technical solution, the acoustic vibration monitoring device further includes a second directional microphone, which is positioned corresponding to the temperature-flow measurement device and points away from the side of the temperature-flow measurement device. The second directional microphone can collect noise fluctuation information from all devices surrounding the temperature-flow measurement device, as well as environmental noise (such as wind noise, rain noise, etc.), which interact and propagate to the temperature-flow measurement device, thereby enabling more reliable correction of the mass flow rate information.

[0017] Secondly, the present invention also discloses a method for simulating and scheduling power equipment based on equipment operating status, applicable to the system described in any of the above technical solutions, comprising:

[0018] Collect the initial operational data prior to the system failure;

[0019] Mark the abnormal data prior to the system failure;

[0020] Extract the second running data prior to the time the abnormal data was generated and the acoustic vibration information;

[0021] Obtain third-party runtime data of the system during runtime;

[0022] The third operating data is compared with the second operating data to obtain a similarity parameter between the third operating data and the second operating data, and the risk index is obtained by combining the voiceprint vibration information.

[0023] Set a threshold and compare it with the risk index to obtain a first comparison result;

[0024] The energy supply ratio of the system is adjusted according to the first comparison result;

[0025] The first, second, and third operating data include the corrected mass flow rate data and the temperature information. In some cases, the system's operating state gradually deviates from the ideal state over time, but the operating data does not reach the alarm threshold, making it difficult to attract the attention of maintenance personnel. As the system's operating time increases, its operating state may gradually deteriorate. In this situation, when the system faces high-pressure operating conditions, a larger-scale failure will suddenly occur, causing serious impact. This method enables monitoring of the system during its operation and adjustment of the system's functional allocation based on the monitoring results, thereby preventing the impact of a failure on the upstream and downstream power grids.

[0026] As an optional technical solution, the method further includes:

[0027] Acquire fourth operating data of multiple immersion power devices;

[0028] Multiple sets of fourth operational data are compared with each other, and a second comparison result is obtained;

[0029] Based on the second comparison result, it is determined whether there is a risk of failure among the multiple immersion power devices;

[0030] The fourth operational data includes the corrected mass flow rate data, the temperature information, and the acoustic vibration information. In this technical solution, the information processing module can simultaneously obtain the operational status of multiple immersion power devices and compare them. The multiple immersion power devices involved in the comparison should be operating under similar conditions. Under these circumstances, the operational data obtained after comparison is more likely to indicate an abnormal condition compared to other abnormal groups or sets of immersion power devices. Therefore, monitoring resources can be concentrated or prioritized for monitoring these devices.

[0031] As an optional technical solution, the temperature-flow measurement device includes a Coriolis mass flow meter, which includes a signal generating end and a signal receiving end; the acoustic vibration monitoring device includes an accelerometer and a first directional microphone connected to the information processing module, and also includes a second directional microphone. The accelerometer is installed on the outside of the immersion power equipment facing the temperature-flow measurement device. The first directional microphone is located on the side of the temperature-flow measurement device close to the immersion power equipment and / or the oil pump and points towards the immersion power equipment or the oil pump. The second directional microphone is located corresponding to the temperature-flow measurement device and points towards the side away from the temperature-flow measurement device.

[0032] The method further includes:

[0033] Acquire the first vibration waveform emitted by the signal generating end and the second vibration waveform received by the signal receiving end;

[0034] Based on the acquisition of the acoustic vibration information received by the accelerometer, the first directional microphone, and the second directional microphone;

[0035] The second vibration waveform is corrected and compensated based on the acoustic vibration information to obtain the third vibration waveform;

[0036] The phase difference between the third vibration waveform and the first vibration waveform is calculated, and the corrected mass flow rate data is calculated. The accelerometer can obtain the noise directly emitted by the immersion power equipment to the outside world. The first directional microphone can obtain the noise emitted by the immersion power equipment or the oil pump and propagated to the temperature-flow measurement device. The second directional microphone can obtain the noise of all equipment in the installation space of the temperature-flow measurement device. After reflection, superposition, or distortion, the noise is mixed with environmental noise such as wind noise and rain noise and then propagated to the temperature-flow measurement device, thereby correcting the second vibration waveform to improve the accuracy of the Coriolis mass flow meter measurement results.

[0037] One or more technical solutions provided by this invention have at least the following technical effects or advantages:

[0038] This invention provides a system and method for simulating and scheduling power equipment based on its operating status. By connecting a detection oil circuit to the liquid storage chamber of an immersion power equipment, an oil pump in the detection oil circuit pumps the fluid medium in the storage chamber to a temperature-flow measurement device at a constant power, thereby obtaining the temperature, mass flow rate, and indirectly viscosity information of the liquid medium. Simultaneously, an acoustic vibration monitoring device monitors the immersion power equipment by obtaining its acoustic vibration information and corrects the measurement results of the temperature-flow measurement device based on this information. An information processing module assesses the risk index of the immersion power equipment based on the above information, and a power dispatching module controls the load of the immersion power equipment according to the risk index. This invention establishes a long-term monitoring mechanism for immersion power equipment, which is a key node in the power system, thereby extending the defense response window. Attached Figure Description

[0039] The accompanying drawings, which are provided to further illustrate embodiments of the invention and constitute a part of this invention, are not intended to limit the scope of the invention.

[0040] Figure 1 This is a schematic diagram of the system for simulating and scheduling power equipment based on the operating status of the equipment in this invention;

[0041] Figure 2 This is a flowchart of the method for simulating and scheduling power equipment based on the operating status of the equipment in this invention.

[0042] Explanation of reference numerals in the attached figures

[0043] Immersion power equipment-1; Liquid storage chamber-11; Liquid medium-12; Oil pump-21; First pipeline-22; Second pipeline-23; Fixture-24; Coriolis mass flow meter-31; Infrared thermometer-32; Mounting base-33; Accelerometer-41; First directional microphone-42; Second directional microphone-43. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium; or they can refer to internal communication between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0046] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0047] Example 1:

[0048] like Figure 1 and Figure 2 As shown, Figure 1 The arrow inside the oil pump 21 indicates the flow direction of the liquid medium 12. This embodiment provides a system for simulating and scheduling power equipment based on the equipment's operating status. The power equipment includes an immersion power device 1, which includes a storage chamber 11 for storing the liquid medium 12, and further includes:

[0049] The oil circuit is tested. The oil circuit includes pipelines and oil pump 21. The beginning and end of the pipelines are connected to the liquid storage chamber 11, and the oil pump 21 is connected to the pipelines.

[0050] A temperature-flow measurement device is connected to the pipeline and is used to acquire the temperature and mass flow information of the liquid medium 12.

[0051] A soundprint vibration monitoring device is provided for the immersion power equipment 1. The soundprint vibration monitoring device is used to obtain the soundprint vibration information of the immersion power equipment 1. The soundprint vibration monitoring device signal is connected to the temperature-flow measurement device.

[0052] The information processing module is connected to the immersion power equipment 1, the temperature-flow measurement device, and the acoustic vibration monitoring device. The information processing module is used to correct the mass flow rate information based on the acoustic vibration information, and output the risk index based on the corrected mass flow rate data, temperature information, and acoustic vibration information.

[0053] The power dispatch module is connected to the information processing module and the immersion power equipment 1. The power dispatch module controls the load of the immersion power equipment 1 according to a risk index. During system operation, the oil pump 21 extracts the liquid medium 12 from the storage chamber 11 through pipelines and delivers it to the temperature-flow measurement device. During system operation, the oil pump 21 should operate at a fixed power. Under this condition, the temperature-flow measurement device can measure not only the temperature and mass flow rate of the liquid medium 12, but also the viscosity of the liquid medium 12 at the current temperature through the mass flow rate of the liquid medium 12 pumped by the oil pump 21. This allows the device to determine the degree of degradation of the liquid medium 12 under the influence of the immersion power equipment 1, such as the degree of aging, the amount of gas or moisture mixed in, etc., thereby indirectly obtaining the operating status of the immersion power equipment 1 and providing a basis for assessing the risk of failure of the immersion power equipment 1. Meanwhile, the acoustic vibration monitoring device can obtain information on the vibration and noise fluctuations of the immersion power equipment 1, thus providing correction and compensation for the temperature-flow measurement device and preventing vibration and noise from interfering with the measurement of the mass flow rate of the liquid medium 12. Furthermore, the acoustic vibration monitoring device can also monitor the operating status of the immersion power equipment 1 through the sounds it emits during operation. The information processing module integrates the mass flow rate information, temperature information, and acoustic vibration information obtained from the temperature-flow measurement device and the acoustic vibration monitoring device, along with the corrected mass flow rate data, to calculate a risk index, quantifying the failure risk of the immersion power equipment 1. Based on the risk index, the power dispatching module can control and adjust the load on the immersion power equipment 1, for example, by distributing the input or output of the immersion power equipment 1, to mitigate the impact on upstream and downstream power equipment caused by abnormal offline operation of the immersion power equipment 1, thereby reducing the possibility of larger-scale failures.

[0054] The temperature-flow measurement device may include an infrared thermometer 32, which can be installed in relation to the pipeline. By controlling the power of the oil pump 21 and the diameter of the pipeline, the liquid medium 12 can be made to flow in the pipeline in a laminar flow manner. At this time, the infrared thermometer 32 can identify whether there is a local temperature anomaly in the liquid medium 12, thereby determining whether the local operating status of the immersion power equipment 1 is normal.

[0055] As an optional implementation, the temperature of the liquid medium 12 can be obtained before a similar device fails under similar operating conditions or before the last failure of the same device. and viscosity The relationship curve was compared with the actual temperature of the liquid medium 12 measured by the temperature-flow measurement device. With the calculated viscosity The comparison yields the first component of the risk index, namely the similarity parameter a:

[0056]

[0057] By analyzing the acoustic vibration information obtained from the acoustic vibration monitoring device and referencing frequency domain characteristics such as fundamental frequency shift, total harmonic distortion rate, and odd-even harmonic ratio, the second component b of the risk index is obtained, ultimately yielding the risk index C:

[0058]

[0059] Example 2:

[0060] Based on Embodiment 1, the number of immersion power devices 1 is multiple. Each immersion power device 1 is equipped with a detection oil circuit, a temperature-flow measurement device, and an acoustic vibration monitoring device. The signals of the multiple temperature-flow measurement devices and acoustic vibration monitoring devices are connected to the same information processing module. In this technical solution, the information processing module can simultaneously obtain the operating status of multiple immersion power devices 1 and compare them with each other. The multiple immersion power devices 1 participating in the comparison should be operating under similar operating conditions. Under this condition, the operating data after comparison is more likely to indicate an abnormal condition compared to other abnormal groups or several groups of immersion power devices 1. Therefore, monitoring resources can be concentrated or tilted to monitor these devices.

[0061] As an optional technical solution, the immersion power equipment 1 also includes a main body disposed within the liquid storage chamber 11, multiple detection oil lines distributed at intervals corresponding to the main body, with the starting ends of the pipelines located within the main body; and multiple temperature-flow measurement devices, each connected to one detection oil line. These multiple detection oil lines can extract fluid media from different locations within the liquid storage chamber 11, thereby effectively monitoring local changes in the immersion power equipment 1.

[0062] As an optional technical solution, the temperature-flow measurement device includes a Coriolis mass flow meter 31. The frequency of the Coriolis mass flow meter 31 is not lower than 110Hz, and the frequency difference between any two Coriolis mass flow meters 31 is not less than 10Hz. Using the above-mentioned frequency for the Coriolis mass flow meter 31 helps to avoid noise frequencies generated by factors such as magnetostriction of the iron core and oil pump 21, and helps to prevent resonance from affecting the Coriolis mass flow meter 31. The frequency difference between multiple Coriolis mass flow meters 31 ensures that even if the frequency of one Coriolis mass flow meter 31 is affected by environmental noise and resonates under certain conditions, the other Coriolis mass flow meters 31 can still operate normally.

[0063] As an optional technical solution, the pipeline includes a fixing member 24, a first pipe 22 and a second pipe 23. The fixing member 24 is spaced apart from the immersion power equipment 1. The first pipe 22 is connected to the liquid storage chamber 11 and installed on the fixing member 24. The first pipe 22 is a flexible hose. One end of the second pipe 23 is connected to the first pipe 22 and the other end is connected to the Coriolis mass flow meter 31.

[0064] The temperature-flow measurement device also includes a mounting base 33, which is spaced apart from the fixing member 24. The Coriolis mass flow meter 31 is mounted on the mounting base 33. The first pipe 22 is configured as a flexible hose, and the fixing member 24 is provided between the first pipe 22 and the second pipe 23. The mounting base 33, which is separate from the fixing member 24, helps to prevent the vibration of the immersion power equipment 1 from being directly transmitted to the temperature-flow measurement device through the pipeline or the mounting platform, thereby improving the reliability of the measurement results of the temperature-flow measurement device.

[0065] As an optional technical solution, the acoustic vibration monitoring device includes an accelerometer 41 connected to the information processing module and a first directional microphone 42. The accelerometer 41 is installed on the outside of the immersion power equipment 1 facing the temperature-flow measurement device, and the first directional microphone 42 is located on the side of the temperature-flow measurement device near the immersion power equipment 1 and / or the oil pump 21 and points towards the immersion power equipment 1 or the oil pump 21. The accelerometer 41 can directly collect the vibration information of the immersion power equipment 1, and the first directional microphone 42 can collect the fluctuation information of the noise generated by the immersion power equipment 1 or the oil pump 21 after superposition and propagation in space to the temperature-flow measurement device. During the propagation process, the frequency and other characteristics of this fluctuation information may be distorted and differ from the vibration information. By setting the accelerometer 41 and the first directional microphone 42, the original vibration information of the immersion power equipment 1 and the fluctuation information of the noise propagating to the temperature-flow measurement device can be collected simultaneously, thereby making more reliable corrections to the mass flow rate information.

[0066] As an optional technical solution, the acoustic vibration monitoring device also includes a second directional microphone 43. The second directional microphone 43 is positioned corresponding to the temperature-flow measurement device and points away from the side of the temperature-flow measurement device. The second directional microphone 43 can collect the noise fluctuation information of all devices around the temperature-flow measurement device and the environmental noise (such as wind noise, rain noise, etc.) that interact and propagate to the temperature-flow measurement device, thereby making more reliable corrections to the mass flow information.

[0067] Example 3:

[0068] like Figure 2As shown, the present invention also discloses a method for simulating and scheduling power equipment based on equipment operating status, applied to the system in Embodiment 1 or Embodiment 2, comprising:

[0069] Collect initial operational data prior to system failure;

[0070] Mark abnormal data prior to system failure;

[0071] Extract the second running data and acoustic vibration information prior to the time the abnormal data was generated;

[0072] Obtain third-party runtime data during system operation;

[0073] By comparing the third operating data with the second operating data, the similarity parameter between the third operating data and the second operating data is obtained, and the risk index is obtained by combining the acoustic vibration information.

[0074] Set a threshold and compare it with the risk index to obtain the first comparison result;

[0075] Adjust the system's energy supply ratio based on the first comparison result.

[0076] The first operating data, the second operating data, and the third operating data include at least corrected mass flow rate data and temperature information, acoustic vibration information, and risk index.

[0077] In some cases, the system's operating state gradually deviates from the ideal state over time, but the operating data does not reach the alarm threshold, making it difficult to attract the attention of maintenance personnel. As the system's operating time increases, its operating state may gradually deteriorate. In this situation, when the system faces high-pressure conditions, a larger-scale failure will suddenly occur, causing serious impact. This method enables monitoring during the system's operation and adjustments to the system's functional allocation based on the monitoring results, thereby preventing the impact of a failure on the upstream and downstream power grids.

[0078] As an optional technical solution, the method also includes:

[0079] Acquire the fourth operating data of multiple immersion power devices 1;

[0080] Multiple sets of fourth-run data are compared with each other, and a second comparison result is obtained;

[0081] Based on the second comparison results, determine whether there is a risk of failure among the multiple immersion power devices 1;

[0082] The fourth set of operational data includes corrected mass flow rate data, temperature information, and acoustic vibration information. In this technical solution, the information processing module can simultaneously obtain the operating status of multiple immersion power devices 1 and compare them with each other. The multiple immersion power devices 1 participating in the comparison should be operating under similar conditions. Under these circumstances, the operational data after comparison is more likely to indicate an abnormal condition compared to other abnormal groups or several groups of immersion power devices 1. Therefore, monitoring resources can be concentrated or prioritized for monitoring these devices.

[0083] As an optional technical solution, the temperature-flow measurement device includes a Coriolis mass flow meter 31, which includes a signal generating end and a signal receiving end; the acoustic vibration monitoring device includes an accelerometer 41 and a first directional microphone 42 connected to the information processing module, and also includes a second directional microphone 43. The accelerometer 41 is installed on the outside of the immersion power device 1 facing the temperature-flow measurement device. The first directional microphone 42 is located on the side of the temperature-flow measurement device close to the immersion power device 1 and / or the oil pump 21 and points towards the immersion power device 1 or the oil pump 21; the second directional microphone 43 is located corresponding to the temperature-flow measurement device and points away from the temperature-flow measurement device.

[0084] The method also includes:

[0085] Acquire the first vibration waveform emitted by the signal generator and the second vibration waveform received by the signal receiver;

[0086] Based on the acoustic vibration information received by the accelerometer 41, the first directional microphone 42, and the second directional microphone 43;

[0087] The second vibration waveform is corrected and compensated based on the acoustic vibration information to obtain the third vibration waveform;

[0088] The phase difference between the third vibration waveform and the first vibration waveform is calculated, and the corrected mass flow rate data is calculated. The accelerometer 41 can obtain the noise directly emitted by the immersion power equipment 1 to the outside world. The first directional microphone 42 can obtain the noise emitted by the immersion power equipment 1 or the oil pump 21 and propagated to the temperature-flow measurement device. The second directional microphone 43 can obtain the noise of all equipment in the installation space of the temperature-flow measurement device. After reflection, superposition or distortion, the noise is mixed with environmental noise such as wind noise and rain noise and then propagated to the temperature-flow measurement device, thereby correcting the second vibration waveform to improve the accuracy of the measurement results of the Coriolis mass flow meter 31.

[0089] In some implementations, the interference components from the acoustic vibration information can be subtracted from the second vibration waveform in real time by using the acoustic vibration information as a reference input and simulating the interference path through an adaptive filter, such as by using the LMS algorithm, RLS algorithm, or NLMS algorithm.

[0090] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0091] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for scheduling power equipment based on equipment operating status simulation, characterized in that, A system for simulating and scheduling power equipment based on its operating status, comprising: an immersion power device, the immersion power device including a liquid storage chamber for storing a liquid medium, and further comprising: The detection oil circuit includes a pipeline and an oil pump. The starting end and the ending end of the pipeline are respectively connected to the liquid storage chamber, and the oil pump is connected to the pipeline. A temperature-flow measurement device is connected to the pipeline and is used to acquire temperature information and mass flow rate information of the liquid medium. A soundprint vibration monitoring device is provided, which is configured to correspond to the immersion power equipment. The soundprint vibration monitoring device is used to acquire the soundprint vibration information of the immersion power equipment, and the soundprint vibration monitoring device is connected to the temperature-flow measurement device. An information processing module is connected to the immersion power equipment, the temperature-flow measurement device, and the acoustic vibration monitoring device. The information processing module is used to correct the mass flow information based on the acoustic vibration information, and output a risk index based on the corrected mass flow data, the temperature information, and the acoustic vibration information. A power dispatching module is signal-connected to the information processing module and the immersion power equipment. The power dispatching module is used to control the load of the immersion power equipment according to a risk index. The method for simulating and scheduling power equipment based on equipment operating status includes: Collect the initial operational data prior to the system failure; Mark the abnormal data prior to the system failure; Extract the second running data prior to the time the abnormal data was generated and the acoustic vibration information; Obtain third-party runtime data of the system during runtime; The third operating data is compared with the second operating data to obtain a similarity parameter between the third operating data and the second operating data, and the risk index is obtained by combining the voiceprint vibration information. Set a threshold and compare it with the risk index to obtain a first comparison result; The energy supply ratio of the system is adjusted according to the first comparison result; The first operating data, the second operating data, and the third operating data include the corrected mass flow rate data and the temperature information.

2. The method for scheduling power equipment based on equipment operating status simulation according to claim 1, characterized in that, The number of immersion power devices is multiple, and each of the multiple immersion power devices is equipped with the detection oil circuit, temperature-flow measurement device and acoustic vibration monitoring device. The signals of the multiple temperature-flow measurement devices and the acoustic vibration monitoring devices are connected to the same information processing module.

3. The method for scheduling power equipment based on equipment operating status simulation according to claim 1, characterized in that, The immersion power equipment also includes a main body disposed in the liquid storage chamber, and a plurality of detection oil circuits are provided, which are distributed at intervals corresponding to the main body of the equipment, with the starting end of the pipeline being disposed corresponding to the main body of the equipment; and a plurality of temperature-flow measuring devices are provided, with each temperature-flow measuring device being connected to one of the detection oil circuits.

4. The method for scheduling power equipment based on equipment operating status simulation according to claim 3, characterized in that, The temperature-flow measurement device includes a Coriolis mass flow meter, the frequency of which is not less than 110 Hz, and the frequency difference between any two Coriolis mass flow meters is not less than 10 Hz.

5. The method for scheduling power equipment based on equipment operating status simulation according to claim 4, characterized in that, The pipeline includes a fixing component, a first pipe, and a second pipe. The fixing component is spaced apart from the immersion power equipment. The first pipe is connected to the liquid storage chamber and installed on the fixing component. The first pipe is a flexible hose. One end of the second pipe is connected to the first pipe, and the other end is connected to the Coriolis mass flow meter. The temperature-flow measurement device also includes a mounting base, which is spaced apart from the fixing component, and the Coriolis mass flow meter is mounted on the mounting base.

6. The method for scheduling power equipment based on equipment operating status simulation according to claim 1, characterized in that, Also includes: Acquire fourth operating data of multiple immersion power devices; Multiple sets of fourth operational data are compared with each other, and a second comparison result is obtained; Based on the second comparison result, it is determined whether there is a risk of failure among the multiple immersion power devices; The fourth operating data includes the corrected mass flow rate data, the temperature information, and the acoustic vibration information.

7. The method for scheduling power equipment based on equipment operating status simulation according to claim 1, characterized in that, The temperature-flow measurement device includes a Coriolis mass flow meter, which includes a signal generating end and a signal receiving end; the acoustic vibration monitoring device includes an accelerometer and a first directional microphone connected to the information processing module, and also includes a second directional microphone. The accelerometer is installed on the outside of the immersion power equipment facing the temperature-flow measurement device. The first directional microphone is located on the side of the temperature-flow measurement device close to the immersion power equipment and / or the oil pump and points towards the immersion power equipment or the oil pump. The second directional microphone is located corresponding to the temperature-flow measurement device and points away from the side of the temperature-flow measurement device. The method further includes: Acquire the first vibration waveform emitted by the signal generating end and the second vibration waveform received by the signal receiving end; Based on the acquisition of the acoustic vibration information received by the accelerometer, the first directional microphone, and the second directional microphone; The second vibration waveform is corrected and compensated based on the acoustic vibration information to obtain the third vibration waveform; Calculate the phase difference between the third vibration waveform and the first vibration waveform, and calculate the corrected mass flow rate data.

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