Electrolytic aluminum busbar voltage harmonic suppression method, device, equipment, medium and product

Abstract

The invention discloses an electrolytic aluminum busbar voltage harmonic suppression method, device and equipment, a medium and a product. The method comprises the following steps: acquiring an electrolytic aluminum busbar voltage and an output voltage of a direct-current converter; if the voltage difference value between the electrolytic aluminum busbar voltage and the output voltage of the direct-current converter is greater than a voltage threshold value, determining an improved operation parameter corresponding to the direct-current converter according to the voltage difference value; and controlling the output voltage and the output current of the direct current converter based on the improved operation parameters of the direct current converter so as to suppress the voltage harmonic wave of the electrolytic aluminum busbar. Through the technical scheme of the invention, under the condition that the voltage difference between the voltage of the electrolytic aluminum busbar and the voltage of the output side of the direct-current converter is greater than the set voltage threshold, the output parameter of the direct-current converter can be adjusted in time, and the voltage harmonic of the electrolytic aluminum busbar is suppressed, so that sudden voltage abnormity is effectively coped with, and the service life of the electrolytic aluminum busbar is prolonged. Production efficiency and product quality are improved, and service life of equipment is prolonged.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of electrolytic aluminum, and in particular, to a method, device, equipment, medium and product for suppressing voltage harmonics of electrolytic aluminum busbars. Background Art

[0002] Electrolytic aluminum is a high-energy-consuming industrial production process, and its core equipment is an electrolytic cell, which reduces alumina to metallic aluminum through a large direct current. During the production process of electrolytic aluminum, as a key component for current transmission, the voltage stability of the busbar directly affects the operation efficiency and product quality of the electrolytic cell. However, due to the non-linear characteristics of electrolytic aluminum production equipment and the harmonic sources existing in the power system, the voltage of the electrolytic aluminum busbar is often interfered by harmonics, resulting in increased voltage fluctuations and harmonic content, thereby affecting production efficiency and equipment life. Summary of the Invention

[0003] The embodiments of the present invention provide a method, device, equipment, medium and product for suppressing voltage harmonics of electrolytic aluminum busbars, so as to improve production efficiency and product quality and extend equipment life.

[0004] According to one aspect of the present invention, there is provided a method for suppressing voltage harmonics of electrolytic aluminum busbars, including:

[0005] Obtaining the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter;

[0006] If the voltage difference between the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter is greater than the voltage threshold, determining the improved operating parameters corresponding to the DC converter according to the voltage difference;

[0007] Based on the improved operating parameters of the DC converter, controlling the output voltage and output current of the DC converter to suppress the voltage harmonics of the electrolytic aluminum busbar.

[0008] According to another aspect of the present invention, there is provided a device for suppressing voltage harmonics of electrolytic aluminum busbars, the device including:

[0009] An obtaining module, configured to obtain the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter;

[0010] A determining module, configured to, if the voltage difference between the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter is greater than the voltage threshold, determine the improved operating parameters corresponding to the DC converter according to the voltage difference;

[0011] A control module, configured to control the output voltage and output current of the DC converter based on the improved operating parameters of the DC converter to suppress the voltage harmonics of the electrolytic aluminum busbar.

[0012] According to another aspect of the present invention, there is provided an electronic device, the electronic device comprising:

[0013] at least one processor; and

[0014] a memory communicatively connected to the at least one processor; wherein,

[0015] the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the electrolytic aluminum busbar voltage harmonic suppression method according to any embodiment of the present invention.

[0016] According to another aspect of the present invention, there is provided a computer-readable storage medium storing computer instructions for causing a processor to implement the electrolytic aluminum busbar voltage harmonic suppression method according to any embodiment of the present invention when executed.

[0017] According to another aspect of the present invention, an embodiment of the present invention further provides a computer program product, the computer program product comprising a computer program which, when executed by a processor, implements the electrolytic aluminum busbar voltage harmonic suppression method according to any embodiment of the present invention.

[0018] In the embodiment of the present invention, by obtaining the electrolytic aluminum busbar voltage and the output voltage of the DC converter, if the voltage difference between the electrolytic aluminum busbar voltage and the output voltage of the DC converter is greater than a voltage threshold, the improved operating parameters corresponding to the DC converter are determined according to the voltage difference, and the output voltage and output current of the DC converter are controlled based on the improved operating parameters of the DC converter to suppress the electrolytic aluminum busbar voltage harmonics. Through the technical solution of the present invention, it is possible to timely adjust the output parameters of the DC converter to suppress the electrolytic aluminum busbar voltage harmonics when the voltage difference between the electrolytic aluminum busbar voltage and the output side voltage of the DC converter is greater than the set voltage threshold, thereby effectively coping with sudden voltage anomalies, improving production efficiency and product quality, and prolonging the service life of the equipment.

[0019] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a flowchart of a method for suppressing voltage harmonics of electrolytic aluminum busbars in an embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a device for suppressing voltage harmonics of electrolytic aluminum busbars in an embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of an electronic device for implementing the method for suppressing voltage harmonics of electrolytic aluminum busbars in an embodiment of the present invention. Detailed implementation manners

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above accompanying drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and their derivatives are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0026] It can be understood that before using the technical solutions disclosed in the embodiments of the present disclosure, the types, usage scopes, usage scenarios, etc. of the personal information involved in the present disclosure should be informed to users and user authorization should be obtained in an appropriate manner in accordance with relevant laws and regulations.

[0027] Embodiment 1

[0028] Figure 1It is a flowchart of a method for suppressing voltage harmonics of electrolytic aluminum busbars in an embodiment of the present invention. This embodiment is applicable to the situation of suppressing voltage harmonics of electrolytic aluminum busbars. This method can be executed by the device for suppressing voltage harmonics of electrolytic aluminum busbars in the embodiment of the present invention. This device can be implemented in software and / or hardware, such as Figure 1 shown. The specific steps of this method are as follows:

[0029] S101. Obtain the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter.

[0030] In the actual operation process, the voltage sensor is connected in parallel to the electrolytic aluminum busbar and the output side of the DC converter, and the current sensor is connected in series to the output loop of the DC converter. Set the data acquisition frequency to capture the rapidly changing voltage and current fluctuations. In this embodiment, the data acquisition frequency is not limited. Preferably, the higher the data acquisition frequency, the better. According to the set data acquisition frequency, the voltage of the electrolytic aluminum busbar, the voltage on the output side of the DC converter, and the output current of the DC converter are collected at the same timestamp. Then, a shielded cable with strong anti-interference ability can be used as the transmission medium to transmit the data obtained by the sensors, and the collected data is temporarily stored in the local memory.

[0031] In this embodiment, by connecting the voltage sensor in parallel to the electrolytic aluminum busbar and the output side of the DC converter, and connecting the current sensor in series to the output loop of the DC converter, it ensures the direct and accurate measurement of key electrical parameters, can provide the most real voltage and current information, and is the basis for subsequent analysis and control. At the same time, in this embodiment, by setting a higher data acquisition frequency, it can capture the rapidly changing voltage and current fluctuations, which helps to detect abnormal conditions in a timely manner and quickly take measures for adjustment, improving the dynamic response ability and stability of the system. Among them, according to the set data acquisition frequency, all necessary electrical parameters are collected at the same timestamp, ensuring the correlation and consistency between different parameters, reducing the error caused by the time difference through synchronous acquisition, and improving the accuracy of data analysis. Then, by using a shielded cable with strong anti-interference ability as the transmission medium, it effectively resists the common electromagnetic interference in the industrial environment, ensures the integrity and reliability of data transmission from the sensor to the central control system, and avoids misjudgment caused by noise or interference. Finally, the collected data is temporarily stored in the local memory, which not only reduces the immediate processing burden of the main control system, but also allows the system to quickly access historical data when needed.

[0032] S102. If the voltage difference between the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter is greater than the voltage threshold, determine the corresponding improved operating parameters of the DC converter according to the voltage difference.

[0033] In the specific implementation process, ensure that the real-time data of the electrolytic aluminum busbar voltage and the output-side voltage of the DC converter (i.e., the output voltage of the DC converter) have been accurately collected, and ensure that the data of the electrolytic aluminum busbar voltage and the output-side voltage of the DC converter are strictly synchronized in time. Then, compare the real-time values of the electrolytic aluminum busbar voltage with the real-time values of the output-side voltage of the DC converter one by one, and then calculate the difference between them. This difference reflects the degree of harmonic interference on the electrolytic aluminum busbar voltage. The calculated voltage difference needs to be further processed, including filtering or smoothing, to eliminate the small fluctuations caused by sensor noise or data acquisition errors, and ensure that the obtained voltage difference is more accurate and reliable. Finally, the processed voltage difference can be output to the control system or display device for operators to monitor and analyze.

[0034] Specifically, the formula for calculating the voltage difference can be expressed as:

[0035] |ΔV| = |V bus - V out |;

[0036] where, |ΔV| represents the absolute value of the voltage difference, V bus represents the electrolytic aluminum busbar voltage, and V out represents the output-side voltage of the DC converter.

[0037] In the actual operation process, the voltage difference can be the voltage difference at any time point. One can specify the voltage difference at a certain time point to participate in the calculation as needed; or one can calculate using the average voltage value over a period of time. During the calculation process, the premise of "ensuring that the data of the electrolytic aluminum busbar voltage and the output-side voltage of the DC converter are strictly synchronized in time" needs to be met.

[0038] In this embodiment, by ensuring that the data of the electrolytic aluminum busbar voltage and the voltage on the output side of the DC converter are strictly synchronized in time, the error caused by the time difference is eliminated, ensuring the accuracy of subsequent calculations. By comparing the real-time values one by one, the difference between them is calculated, providing a direct and reliable measure of the voltage difference, which reflects the degree of harmonic interference on the electrolytic aluminum busbar voltage. Subsequently, by further processing the calculated voltage difference, including filtering or smoothing, the small fluctuations caused by sensor noise or data acquisition errors are eliminated, enhancing the anti-noise ability and reliability of the system, making the finally obtained voltage difference more accurate and stable. This embodiment ensures that the real-time data of the electrolytic aluminum busbar voltage and the voltage on the output side of the DC converter have been accurately collected and immediately used to calculate the voltage difference, enabling the system to quickly respond to voltage changes and take necessary control measures in a timely manner. In this embodiment, the absolute value of the voltage difference is directly obtained through the calculation formula, and this value can be used as an indicator to evaluate the severity of harmonic interference, helping engineers quickly determine whether there are significant voltage fluctuations and harmonic problems, thus guiding subsequent suppression measures.

[0039] Among them, the voltage threshold can be a differential pressure difference threshold preset by the user according to the actual situation or empirical value, used to compare with the voltage difference between the electrolytic aluminum busbar voltage and the output voltage of the DC converter, and then determine whether the electrolytic aluminum busbar voltage harmonics are normal. The specific value of the voltage threshold in this embodiment is not limited. Preferably, the lower the voltage threshold is set, the better.

[0040] In the actual operation process, the influencing factors for setting the voltage threshold include: the normal operating voltage range of the electrolytic cell, the fluctuation characteristics of the busbar voltage, the harmonic level of the power system, the tolerance of the equipment, and the requirements for safety and economy. The specific analysis is as follows:

[0041] The normal operating voltage range of the electrolytic cell: The electrolytic cell is the core equipment for electrolytic aluminum production, and its normal operating voltage range has a direct impact on the setting of the voltage threshold. To ensure the stable operation of the electrolytic cell, the voltage threshold should be set within the fluctuation range of the normal operating voltage of the electrolytic cell to avoid affecting the efficiency and product quality of the electrolytic cell due to excessive voltage fluctuations.

[0042] The fluctuation characteristics of the busbar voltage: As a key component for current transmission, the voltage stability of the busbar is crucial for the operation of the electrolytic cell. However, due to the non-linear characteristics of the electrolytic aluminum production equipment and the harmonic sources existing in the power system, the busbar voltage is often affected by harmonic interference, resulting in voltage fluctuations. Therefore, when setting the voltage threshold, it is necessary to fully consider the fluctuation characteristics of the busbar voltage to ensure timely response when the voltage fluctuation exceeds the normal range.

[0043] Harmonic level of the power system: Harmonic sources existing in the power system can interfere with the voltage of the electrolytic aluminum busbar, resulting in an increase in the harmonic content of the voltage. The level of harmonics directly affects the setting of the voltage threshold. In a power system with a high harmonic level, in order to effectively suppress harmonic interference, the voltage threshold may need to be set relatively low so that measures can be taken in a timely manner to suppress harmonic interference when it occurs.

[0044] Tolerance of the equipment: The tolerance of the electrolytic aluminum production equipment to voltage fluctuations is also one of the factors to be considered when setting the voltage threshold. If the equipment has a strong tolerance to voltage fluctuations, the voltage threshold can be set relatively high; on the contrary, if the equipment has a weak tolerance to voltage fluctuations, the voltage threshold needs to be set relatively low to protect the equipment from damage caused by voltage fluctuations.

[0045] Requirements for safety and economy: When setting the voltage threshold, the requirements for safety and economy in electrolytic aluminum production also need to be considered. On the one hand, the setting of the voltage threshold should ensure the safe operation of electrolytic aluminum production and avoid safety accidents caused by excessive voltage fluctuations; on the other hand, the setting of the voltage threshold also needs to consider economic factors and avoid increasing production costs due to overly strict voltage control.

[0046] In this step, by considering the normal operating voltage range of the electrolytic cell to set the voltage threshold, it is ensured that the system can operate under the optimal working conditions of the electrolytic cell, which helps to maintain the stability of the electrolysis process and avoid efficiency reduction or product quality problems caused by voltage fluctuations. Considering the fluctuation characteristics of the busbar voltage when setting the voltage threshold enables the system to respond promptly to voltage fluctuations outside the normal range, effectively reducing unanticipated downtime and ensuring the continuity of production. For different harmonic levels existing in the power system, flexibly adjusting the voltage threshold can effectively suppress harmonic interference without affecting production efficiency. A lower threshold setting allows for earlier detection of harmonic problems and the taking of necessary corrective measures. Setting appropriate voltage thresholds according to the tolerance of different equipment to voltage fluctuations can not only prevent sensitive equipment from being damaged but also avoid unnecessary overprotection, thus optimizing the reliability and cost-effectiveness of the entire system. Considering the requirements for safety and economy when setting the voltage threshold ensures that the system can operate on the premise of ensuring safety and will not increase unnecessary production costs due to overly strict control. By comparing the voltage difference with the preset threshold, the system can immediately provide feedback to the operator or the control system, helping them make quick and accurate decisions, which not only improves the response speed but also enhances the adaptive ability and intelligent level of the system.

[0047] In this embodiment, the improved operating parameters can be parameters for improving the output voltage and output current of the DC converter.

[0048] Preferably, the improved operating parameters may include, for example:

[0049] Output voltage amplitude: The output voltage amplitude of the DC converter needs to be adjusted according to the voltage difference and the calculated correction amount. This parameter of the output voltage amplitude directly affects the compensation effect on the busbar voltage harmonics. If the busbar voltage is too high due to harmonic interference, the output voltage amplitude of the DC converter needs to be reduced; conversely, if the busbar voltage is too low, then this amplitude needs to be increased to maintain the busbar voltage within a stable range.

[0050] Output voltage phase: Since harmonic interference will cause the phase of the busbar voltage to change, the output voltage of the DC converter needs to adjust the phase to match the phase of the busbar voltage, so as to effectively cancel the harmonic voltage component and achieve harmonic suppression. For example, when the phase of a certain harmonic in the busbar voltage is advanced, the corresponding compensation component of the output voltage of the DC converter needs to be adjusted to a lagging phase to achieve the best compensation effect.

[0051] Output current amplitude: According to the calculated harmonic current correction amount, the DC converter needs to adjust the output current amplitude. If there is excessive harmonic current in the busbar, the DC converter needs to output a current in the opposite direction, and the amplitude needs to be accurately matched to neutralize the harmonic current, ensure the stability of the busbar current, and then stabilize the voltage.

[0052] Output current phase: When the phase of the busbar current is abnormally changed due to harmonic interference, the output current phase of the DC converter needs to be adjusted to ensure that the compensation current is opposite to the phase of the harmonic current, enhancing the suppression effect on the harmonic current.

[0053] Switching frequency: The DC converter works through switching devices inside. The adjustment of the switching frequency has a significant impact on its performance. An appropriate switching frequency can make the DC converter output the required voltage and current more efficiently, while reducing the electromagnetic interference generated by itself. During the harmonic suppression process, the switching frequency can be appropriately adjusted according to the system conditions and harmonic characteristics to optimize the harmonic suppression ability of the DC converter for the busbar voltage harmonics.

[0054] Specifically, compare the voltage difference with a preset voltage threshold. If the voltage difference does not exceed the preset voltage threshold, it means that the busbar voltage harmonics of the electrolytic aluminum are normal; if the voltage difference exceeds the preset voltage threshold, it means that the busbar voltage harmonics of the electrolytic aluminum are abnormal, and then the improved operating parameters of the DC converter need to be calculated according to the voltage difference.

[0055] S103. Control the output voltage and output current of the DC converter based on the improved operating parameters of the DC converter to suppress the busbar voltage harmonics of the electrolytic aluminum.

[0056] Specifically, after obtaining the improved operating parameters of the DC converter, control the output voltage and current of the DC converter according to the improved operating parameters of the DC converter to suppress the voltage harmonics of the electrolytic aluminum busbar.

[0057] In the embodiment of the present invention, by obtaining the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter, if the voltage difference between the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter is greater than the voltage threshold, the corresponding improved operating parameters of the DC converter are determined according to the voltage difference, and the output voltage and output current of the DC converter are controlled based on the improved operating parameters of the DC converter to suppress the voltage harmonics of the electrolytic aluminum busbar. Through the technical solution of the present invention, it is possible to timely adjust the output parameters of the DC converter and suppress the voltage harmonics of the electrolytic aluminum busbar when the voltage difference between the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter is greater than the set voltage threshold, thereby effectively coping with sudden voltage abnormalities, improving production efficiency and product quality, and extending the service life of equipment.

[0058] Optionally, determining the corresponding improved operating parameters of the DC converter according to the voltage difference includes:

[0059] Determine the voltage correction amount and current correction amount corresponding to the DC converter according to the voltage difference.

[0060] It should be noted that the voltage correction amount can be the amount of the output voltage that the DC converter should correct, and the current correction amount can be the amount of the output current that the DC converter should correct.

[0061] Specifically, according to the current voltage difference, calculate the correction amounts of the output voltage and current of the DC converter, and update the output command of the DC converter.

[0062] Determine the power correction amount according to the voltage correction amount and current correction amount.

[0063] It should be noted that the power correction amount can be the amount for correcting the output power of the photovoltaic system.

[0064] In the actual operation process, according to the correction amounts of the output voltage and current of the DC converter, calculate the output power correction amount to correct the output power of the photovoltaic system. Specifically, convert the correction amounts of the output voltage and current of the DC converter into the output power correction amount of the photovoltaic system.

[0065] In this embodiment, power correction is performed according to the output power correction amount; according to the feedback information of the DC converter, the output parameters of the photovoltaic inverter (the main component of the photovoltaic system) are adjusted so that the output power of the photovoltaic system adapts to the new requirements. During the actual operation process, in order to avoid sudden power changes from impacting the power grid, by setting a reasonable adjustment rate, the power correction process is made gradual and smooth. After implementing the power correction, the output state of the photovoltaic system and the operation of the entire power system are continuously monitored.

[0066] In this step, by converting the correction amounts of the output voltage and current of the DC converter into the output power correction amount of the photovoltaic system, it is ensured that the photovoltaic system can work in cooperation with the DC converter, precisely match the requirements of the power system, and thus effectively suppress the voltage harmonics of the electrolytic aluminum busbar. In this embodiment, in order to avoid sudden power changes from impacting the power grid, by setting a reasonable adjustment rate, the power correction process is made gradual and smooth, which not only protects the safe and stable operation of the power grid, but also reduces the equipment stress and potential failure risks caused by rapid changes. Based on the feedback information of the DC converter, the output parameters of the photovoltaic inverter are quickly adjusted so that the system can promptly respond to the change in the voltage difference, improving the response speed and flexibility of the overall system. By reasonably adjusting the output power of the photovoltaic system, as much renewable energy as possible can be utilized without affecting the power quality, reducing the dependence on external power, lowering the operating cost, and improving the environmental protection benefit. After implementing the power correction, the output state of the photovoltaic system and the operation of the entire power system are continuously monitored, ensuring the stability and reliability of the system. This closed-loop control mechanism in this embodiment can promptly detect and solve any potential problems, further enhancing the adaptive ability of the system. By effectively suppressing the harmonic components in the voltage of the electrolytic aluminum busbar and maintaining a stable voltage environment, it helps to keep the electrolytic cell operating efficiently, improving the product quality and production efficiency.

[0067] Input the power correction amount into the operating parameter correction model to obtain the improved operating parameters corresponding to the DC converter.

[0068] In this embodiment, the operating parameter correction model can be a model for receiving the photovoltaic output power correction amount as input and obtaining the improved operating parameters of the DC converter. Preferably, the operating parameter correction model can be, for example, a trained machine learning model.

[0069] Specifically, input the corrected photovoltaic output power into the pre-constructed operating parameter correction model to obtain the improved operating parameters of the DC converter, and control the output voltage and current of the DC converter according to the improved operating parameters of the DC converter to suppress the voltage harmonics of the electrolytic aluminum busbar.

[0070] Optionally, determining the voltage correction amount and current correction amount corresponding to the DC converter according to the voltage difference includes:

[0071] Performing a spectrum analysis on the voltage difference to obtain the components and frequencies of the harmonics.

[0072] In the actual operation process, the time-domain data of the voltage difference can be collected by a high-speed sampling device, and then the collected time-domain data is applied with a fast Fourier transform to convert it into frequency-domain data. By analyzing the frequency-domain data, the main harmonic components and their frequencies are determined. Usually, the harmonic components will appear at integer multiples of the fundamental frequency.

[0073] Specifically, perform a spectrum analysis on the voltage difference to identify the main components of the harmonics and their frequencies. According to the harmonic components and frequencies, calculate the harmonic current and voltage amounts that need to be eliminated or reduced.

[0074] Among them, spectrum analysis uses the Fourier transform to convert the time-domain signal into a frequency-domain signal, thereby revealing various frequency components and their amplitudes contained in the signal; in the spectrum analysis result, identify the harmonic frequency fh components that exceed the normal range and their corresponding amplitudes Vh (for voltage) or Ih (for current). Among them, the harmonic frequency fh is used to evaluate abnormal harmonics. For each harmonic voltage component Vh that needs to be eliminated or reduced, the anti-phase voltage that needs to be provided on the output side of the DC converter is calculated in the following way:

[0075] For the voltage harmonic component Vh, a voltage with a phase opposite to the original harmonic voltage needs to be provided to cancel it. Therefore, the anti-phase voltage Vc = -Vh;

[0076] For the current harmonic component Ih, the anti-phase current Ic = -Ih that needs to be injected is calculated.

[0077] Determine the harmonic current and voltage amounts according to the components and frequencies of the harmonics.

[0078] In the actual operation process, the harmonic components that need to be eliminated or reduced can be determined from the spectrum analysis. Usually, the harmonic components that need to be eliminated or reduced are generally the harmonics with larger amplitudes. Then, according to the amplitude and phase of the harmonic components, the corresponding harmonic current and voltage are calculated. This operation can be completed by harmonic analysis software or manual calculation, and this embodiment does not limit this.

[0079] Determine the voltage correction amount and current correction amount corresponding to the DC converter according to the harmonic current and voltage amounts.

[0080] Specifically, based on the results of the calculated harmonic current and voltage quantities, the correction quantities of the output voltage and current of the DC converter are calculated. Then, according to the calculated correction quantities of the output voltage and current of the DC converter, a correction instruction is generated and sent to the DC converter to adjust its output voltage and current, thereby achieving the suppression of the harmonic voltage of the electrolytic aluminum busbar.

[0081] After sending the correction instruction, continuously monitor the voltage of the electrolytic aluminum busbar and the output status of the DC converter, and according to the monitoring results, timely adjust the correction instruction to ensure that the harmonic suppression effect reaches the best.

[0082] Optionally, determining the corresponding voltage correction quantity and current correction quantity of the DC converter according to the harmonic current and voltage quantities includes:

[0083] Obtain the correction target.

[0084] Among them, the correction target can be the correction target of the output voltage and current of the DC converter.

[0085] Specifically, according to the harmonic current and voltage quantities that need to be eliminated or reduced, determine the correction target of the output voltage and current of the DC converter, eliminate or reduce the harmonic components in the voltage of the electrolytic aluminum busbar, and restore it to the normal range to ensure the stable operation of the electrolytic cell and product quality.

[0086] Determine the corresponding voltage correction quantity and current correction quantity of the DC converter according to the harmonic current and voltage quantities and the correction target.

[0087] Specifically, according to the correction target, calculate the correction quantities of the output voltage and current of the DC converter. This may involve adjusting the control parameters of the converter, such as the duty cycle of PWM (Pulse Width Modulation, an important parameter of the signal, used to describe the ratio of the duration of the high level (or "on" state) of the pulse signal to the entire pulse period), phase angle, etc.

[0088] In this step, when the detected voltage difference exceeds the preset threshold, the system can respond immediately, quickly calculate the necessary correction amount, and update the output command of the DC converter, which can effectively prevent the negative impact of voltage harmonics on the operation of the electrolytic cell. By performing spectral analysis on the voltage difference, the main components and frequencies of the harmonics are determined, enabling the system to calculate the specific harmonic currents and voltage amounts that need to be eliminated or reduced in a targeted manner, improving the accuracy of the correction measures and reducing unnecessary adjustments. According to the calculated harmonic currents and voltage amounts, the correction amounts of the output voltage and current of the DC converter are accurately calculated, and a correction command is generated accordingly, ensuring that the output of the DC converter can accurately adapt to the current power demand and optimizing the performance of the entire system. After sending the correction command, the system continuously monitors the voltage of the electrolytic aluminum busbar and the output status of the DC converter, and adjusts the correction command in a timely manner according to the actual effect, ensuring the optimization of the harmonic suppression effect and enhancing the adaptive ability of the system. By effectively suppressing harmonic interference, the voltage of the electrolytic aluminum busbar is restored to the normal range, thus ensuring the stable operation of the electrolytic cell and product quality. Reducing voltage fluctuations helps to extend the equipment life and reduce maintenance costs. Precise harmonic suppression not only improves the power quality but also increases the energy conversion efficiency and reduces unnecessary energy losses. The continuous monitoring and feedback mechanism provides reliable power status information for the operators, helping them make more informed decisions. At the same time, this also enhances the reliability and safety of the system and reduces the risk of unexpected shutdowns.

[0089] Optionally, the operation parameter correction model is obtained by iteratively training a machine learning model with a target sample set.

[0090] Among them, the target sample set includes the historical operation data of the DC converter and the optimal operation parameters corresponding to the historical operation data.

[0091] In this embodiment, the historical operation data can be data such as the busbar voltage, the output side voltage of the DC converter, and the output current of the DC converter during the electrolytic aluminum production process at a historical moment collected in advance. Among them, the optimal operation parameters can be the improved operation parameters of the DC converter corresponding to the historical operation data.

[0092] Iteratively training the machine learning model with the target sample set includes:

[0093] Establish a machine learning model.

[0094] In this embodiment, a machine learning model is selected as the basis for the operation parameter correction model.

[0095] Preferably, the machine learning model includes a support vector machine, a random forest, and a neural network, and this embodiment does not limit this.

[0096] Input the historical operation data in the target sample set into the machine learning model to obtain predicted operation parameters.

[0097] It should be noted that the predicted operation parameters can be the improved operation parameters of the DC converter output by the machine learning model according to the input historical operation data.

[0098] Train the parameters of the machine learning model according to the objective function formed by the predicted operation parameters and the optimal operation parameters corresponding to the historical operation data.

[0099] Specifically, use the predicted operation parameters and the optimal operation parameters corresponding to the historical operation data to train the machine learning model and adjust the model parameters so that it can accurately predict the improved operation parameters of the DC converter.

[0100] Return to execute the operation of inputting the historical operation data in the target sample set into the machine learning model to obtain predicted operation parameters until an operation parameter correction model is obtained.

[0101] In the actual operation process, the iteration termination conditions can be preset. For example, the iteration number threshold can be set, or the iteration convergence condition can be set. When the iteration training number reaches the iteration number threshold, and / or the iteration training result reaches the iteration convergence condition, it is considered that the machine learning model has been trained. Deploy the trained model to the control system and receive the photovoltaic output power correction amount as the input in real time.

[0102] Optionally, the historical operation data includes: the historical electrolytic aluminum busbar voltage and the historical output voltage of the DC converter.

[0103] Inputting the historical operation data in the target sample set into the machine learning model to obtain predicted operation parameters includes:

[0104] Obtain the historical operation data.

[0105] In the actual operation process, collect the historical operation data, including the busbar voltage during the electrolytic aluminum production process, the output side voltage of the DC converter, and the output current of the DC converter. Then preprocess the collected data, including data cleaning, outlier processing, and data smoothing, to ensure the accuracy and reliability of the data.

[0106] Determine the voltage difference sample according to the historical electrolytic aluminum busbar voltage and the historical output voltage of the DC converter in the historical operation data.

[0107] Among them, the voltage difference sample can be the voltage difference obtained by subtracting the historical output voltage of the DC converter from the historical electrolytic aluminum busbar voltage in the historical operation data.

[0108] Determine the power correction amount sample corresponding to the DC converter according to the voltage difference sample.

[0109] In this embodiment, the power correction amount sample can be the power correction amount corresponding to the DC converter obtained after a series of processes on the voltage difference. Specifically, the processing process is the same as that in the above embodiment, that is, the voltage correction amount sample and the current correction amount sample corresponding to the DC converter can be determined first according to the voltage difference sample, and then the power correction amount sample can be determined according to the voltage correction amount sample and the current correction amount sample.

[0110] Input the voltage difference sample and the power correction amount sample into the machine learning model to obtain the predicted operating parameters.

[0111] Specifically, the feature vectors affecting the output of the DC converter in the historical operating data are identified, including the voltage difference sample and the photovoltaic output power correction amount sample, as the input variables of the model. The model is trained using the preprocessed data and the feature vectors, and the model parameters are adjusted to enable it to accurately predict the improved operating parameters of the DC converter.

[0112] In this step, through the machine learning model, the optimal operating parameters of the DC converter can be accurately predicted based on the historical operating data and the real-time feature vectors, ensuring that the system can operate in the optimal state, improving the power quality and stability. The model deployed in the control system can receive the photovoltaic output power correction amount as the input in real time, quickly calculate the improved operating parameters of the DC converter, and immediately apply them to the DC converter, which helps to respond to voltage fluctuations in a timely manner and reduce the impact of harmonic interference. At the same time, the model is not only fully trained in the initial stage, but also can continuously learn and adapt to new working conditions during the actual operation process. By continuously monitoring the operating state of the system, the model can automatically fine-tune its prediction results to ensure long-term stable harmonic suppression effect. By collecting and preprocessing a large amount of historical operating data, including the busbar voltage, the output-side voltage of the DC converter, and the output current of the DC converter during the electrolytic aluminum production process, the construction and adjustment of the model have a solid data foundation. By precisely adjusting the output power of the photovoltaic system, as much renewable energy as possible can be utilized without affecting the power quality, reducing the dependence on external power, reducing the operating cost and improving the environmental protection benefit. Effective harmonic suppression reduces the stress on electrical equipment, reduces the failure rate, extends the service life of the equipment, and also improves the safety and reliability of the entire system. By eliminating or reducing the harmonic components in the electrolytic aluminum busbar voltage and maintaining a stable voltage environment, it helps to keep the electrolytic cell operating efficiently, improving the product quality and production efficiency.

[0113] The technical solution of the embodiment of the present invention provides a method for suppressing voltage harmonics of electrolytic aluminum busbars. In this method, a voltage difference calculation and a voltage harmonic judgment mechanism are introduced to ensure the accurate assessment of the voltage harmonic condition; the output command of the DC converter is dynamically adjusted according to the current voltage difference, which ensures the flexibility and adaptability of the system and improves the control accuracy; by correcting the output power of the photovoltaic system to cooperate with the adjustment of the output voltage and current of the DC converter, it helps to maintain a stable power supply environment, reduce energy loss, and improve energy utilization efficiency; by effectively suppressing voltage harmonics, this method can improve the stability of the electrolysis process, thereby enhancing the product quality and production efficiency; reduce the impact of voltage fluctuations and harmonics on electrical equipment, reduce the aging speed and failure rate of the equipment, thus extending its service life and reducing maintenance costs; this method helps to eliminate unstable factors in the power system, such as voltage fluctuations and harmonic interference, enhances the reliability of the entire system, and provides a guarantee for safe production; by optimizing power usage, unnecessary energy consumption is reduced, which meets the requirements of energy conservation and emission reduction and has a certain environmental significance. In summary, the method for suppressing voltage harmonics of electrolytic aluminum busbars in the embodiment of the present invention not only solves the problems of voltage stability and harmonic interference existing in the electrolytic aluminum production process, but also can improve production efficiency, extend the equipment life, and achieve energy conservation and emission reduction.

[0114] Embodiment 2

[0115] Figure 2 It is a schematic structural diagram of a device for suppressing voltage harmonics of electrolytic aluminum busbars in an embodiment of the present invention. This embodiment is applicable to the situation of suppressing voltage harmonics of electrolytic aluminum busbars. The device can be implemented in a software and / or hardware manner, and the device can be integrated in any device that provides the function of suppressing voltage harmonics of electrolytic aluminum busbars, such as Figure 2 As shown, the device for suppressing voltage harmonics of electrolytic aluminum busbars specifically includes: an acquisition module 201, a determination module 202, and a control module 203.

[0116] Among them, the acquisition module 201 is used to acquire the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter;

[0117] The determination module 202 is used to, if the voltage difference between the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter is greater than the voltage threshold, determine the improved operating parameters corresponding to the DC converter according to the voltage difference;

[0118] The control module 203 is used to control the output voltage and output current of the DC converter based on the improved operating parameters of the DC converter to suppress the voltage harmonics of the electrolytic aluminum busbar.

[0119] Optionally, the determination module 202 includes:

[0120] A first determination unit, configured to determine a voltage correction amount and a current correction amount corresponding to the DC converter according to the voltage difference;

[0121] A second determination unit, configured to determine a power correction amount according to the voltage correction amount and the current correction amount;

[0122] An input unit, configured to input the power correction amount into an operating parameter correction model to obtain improved operating parameters corresponding to the DC converter.

[0123] Optionally, the first determination unit includes:

[0124] A spectrum analysis subunit, configured to perform spectrum analysis on the voltage difference to obtain the components and frequencies of harmonics;

[0125] A first determination subunit, configured to determine harmonic current and voltage amounts according to the components and frequencies of the harmonics;

[0126] A second determination subunit, configured to determine a voltage correction amount and a current correction amount corresponding to the DC converter according to the harmonic current and voltage amounts.

[0127] Optionally, the second determination subunit is specifically configured to:

[0128] Obtain a correction target;

[0129] Determine a voltage correction amount and a current correction amount corresponding to the DC converter according to the harmonic current and voltage amounts and the correction target.

[0130] Optionally, the operating parameter correction model is obtained by iteratively training a machine learning model through a target sample set, and the target sample set includes historical operating data of the DC converter and the optimal operating parameters corresponding to the historical operating data;

[0131] The device includes:

[0132] A building module, configured to build a machine learning model;

[0133] An input module, configured to input the historical operating data in the target sample set into the machine learning model to obtain predicted operating parameters;

[0134] A training module, configured to train the parameters of the machine learning model according to an objective function formed by the predicted operating parameters and the optimal operating parameters corresponding to the historical operating data;

[0135] An execution module, configured to return and execute the operation of inputting the historical operating data in the target sample set into the machine learning model to obtain predicted operating parameters until an operating parameter correction model is obtained.

[0136] Optionally, the historical operation data includes: the historical voltage of the electrolytic aluminum busbar and the historical output voltage of the DC converter;

[0137] The input module is specifically configured to:

[0138] Obtain the historical operation data;

[0139] Determine a voltage difference sample according to the historical voltage of the electrolytic aluminum busbar and the historical output voltage of the DC converter in the historical operation data;

[0140] Determine a power correction amount sample corresponding to the DC converter according to the voltage difference sample;

[0141] Input the voltage difference sample and the power correction amount sample into the machine learning model to obtain predicted operation parameters.

[0142] The above product can execute the electrolytic aluminum busbar voltage harmonic suppression method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

[0143] Embodiment III

[0144] Figure 3 FIG. shows a schematic structural diagram of an electronic device 30 that can be used to implement an embodiment of the present invention. The electronic device is intended to represent various forms of digital computers, such as, for example, a laptop computer, a desktop computer, a workbench, a personal digital assistant, a server, a blade server, a mainframe computer, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as, for example, a personal digital processor, a cellular phone, a smart phone, a wearable device (such as a helmet, glasses, a watch, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0145] As Figure 3 shown, the electronic device 30 includes at least one processor 31, and a memory communicatively connected to at least one processor 31, such as a read-only memory (ROM) 32, a random access memory (RAM) 33, etc., wherein the memory stores a computer program executable by at least one processor, and the processor 31 can execute various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 32 or the computer program loaded from the storage unit 38 into the random access memory (RAM) 33. In the RAM 33, various programs and data required for the operation of the electronic device 30 can also be stored. The processor 31, the ROM 32, and the RAM 33 are connected to each other through a bus 34. The input / output (I / O) interface 35 is also connected to the bus 34.

[0146] Multiple components in the electronic device 30 are connected to the I / O interface 35, including: an input unit 36, such as a keyboard, a mouse, etc.; an output unit 37, such as various types of displays, speakers, etc.; a storage unit 38, such as a magnetic disk, an optical disc, etc.; and a communication unit 39, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 39 allows the electronic device 30 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0147] The processor 31 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 31 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 31 executes the various methods and processes described above, such as the electrolytic aluminum busbar voltage harmonic suppression method:

[0148] Obtain the electrolytic aluminum busbar voltage and the output voltage of the DC converter;

[0149] If the voltage difference between the electrolytic aluminum busbar voltage and the output voltage of the DC converter is greater than the voltage threshold, determine the improved operating parameters corresponding to the DC converter according to the voltage difference;

[0150] Control the output voltage and output current of the DC converter based on the improved operating parameters of the DC converter to suppress the electrolytic aluminum busbar voltage harmonics.

[0151] In some embodiments, the electrolytic aluminum busbar voltage harmonic suppression method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as the storage unit 38. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 30 via the ROM 32 and / or the communication unit 39. When the computer program is loaded into the RAM 33 and executed by the processor 31, one or more steps of the electrolytic aluminum busbar voltage harmonic suppression method described above can be executed. Alternatively, in other embodiments, the processor 31 can be configured to execute the electrolytic aluminum busbar voltage harmonic suppression method in any other suitable manner (e.g., by means of firmware).

[0152] The various embodiments of the systems and techniques described above in this specification can be implemented in digital electronic circuitry, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems-on-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be a special-purpose or general-purpose programmable processor that receives data and instructions from, and transmits data and instructions to, a storage system, at least one input device, and at least one output device.

[0153] The computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions / operations specified in the flowchart and / or block diagram to be implemented. The computer programs can be executed entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

[0154] In the context of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0155] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which the user can provide input to the electronic device. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0156] The systems and techniques described herein can be implemented in a computing system including backend components (e.g., as a data server), or a computing system including middleware components (e.g., an application server), or a computing system including frontend components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system including any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected to each other by digital data communication in any form or medium (e.g., a communication network). Examples of communication networks include: local area network (LAN), wide area network (WAN), blockchain network, and the Internet.

[0157] The computing system can include a client and a server. The client and the server are generally remote from each other and typically interact through a communication network. The relationship between the client and the server is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system, and solves the defects of difficult management and weak business scalability existing in traditional physical hosts and VPS services.

[0158] In one embodiment, the embodiment of the present invention further includes a computer program product, the computer program product includes a computer program, and when the computer program is executed by a processor, it implements the electrolytic aluminum busbar voltage harmonic suppression method of any embodiment of the present invention.

[0159] In the process of implementing the computer program product, computer program code for performing the operations of the present invention can be written in one or more programming languages or combinations thereof. The programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, executed as an independent software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network - including a local area network (LAN) or a wide area network (WAN) - or, alternatively, can be connected to an external computer (e.g., by using an Internet service provider to connect through the Internet).

[0160] It should be understood that the various forms of the flow shown above can be used, with steps reordered, added, or deleted. For example, the steps recited in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0161] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for suppressing voltage harmonics of electrolytic aluminum busbars, characterized in that Including: Obtain the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter; If the voltage difference between the electrolytic aluminum busbar voltage and the output voltage of the DC converter is greater than the voltage threshold, determine the improved operating parameters corresponding to the DC converter according to the voltage difference; Based on the improved operating parameters of the DC converter, control the output voltage and output current of the DC converter to suppress the voltage harmonics of the electrolytic aluminum busbar.

2. The method according to claim 1, characterized in that, Determining the improved operating parameters corresponding to the DC converter according to the voltage difference includes: Determine the voltage correction amount and current correction amount corresponding to the DC converter according to the voltage difference; Determine the power correction amount according to the voltage correction amount and the current correction amount; Input the power correction amount into the operating parameter correction model to obtain the improved operating parameters corresponding to the DC converter.

3. The method according to claim 2, wherein Determining the voltage correction amount and current correction amount corresponding to the DC converter according to the voltage difference includes: Conduct spectral analysis on the voltage difference to obtain the components and frequencies of the harmonics; Determine the harmonic current and voltage according to the components and frequencies of the harmonics; Determine the voltage correction amount and current correction amount corresponding to the DC converter according to the harmonic current and voltage.

4. The method according to claim 3, wherein Determining the voltage correction amount and current correction amount corresponding to the DC converter according to the harmonic current and voltage includes: Obtain the correction target; Determine the voltage correction amount and current correction amount corresponding to the DC converter according to the harmonic current and voltage and the correction target.

5. The method according to claim 2, characterized in that, The operating parameter correction model is obtained by iteratively training a machine learning model through a target sample set, and the target sample set includes the historical operating data of the DC converter and the optimal operating parameters corresponding to the historical operating data; Iteratively training the machine learning model through the target sample set includes: Establish a machine learning model; Input the historical operating data in the target sample set into the machine learning model to obtain predicted operating parameters; Train the parameters of the machine learning model according to the objective function formed by the predicted operating parameters and the optimal operating parameters corresponding to the historical operating data; Return to execute the operation of inputting the historical operating data in the target sample set into the machine learning model to obtain predicted operating parameters until the operating parameter correction model is obtained.

6. The method according to claim 5, characterized in that, The historical operating data includes: the historical voltage of the electrolytic aluminum busbar and the historical output voltage of the DC converter; Inputting the historical operating data in the target sample set into the machine learning model to obtain predicted operating parameters includes: Obtain the historical operating data; Determine the voltage difference sample according to the historical voltage of the electrolytic aluminum busbar and the historical output voltage in the historical operating data; Determine the power correction amount sample corresponding to the DC converter according to the voltage difference sample; Input the voltage difference sample and the power correction amount sample into the machine learning model to obtain predicted operating parameters.

7. An electrolytic aluminum busbar voltage harmonic suppression device, characterized in that, Including: An acquisition module for acquiring the voltage of the electrolytic aluminum busbar and the output voltage of the DC converter; A determination module, configured to determine improved operating parameters corresponding to the DC converter according to the voltage difference if the voltage difference between the electrolytic aluminum busbar voltage and the output voltage of the DC converter is greater than a voltage threshold; A control module, configured to control the output voltage and output current of the DC converter based on the improved operating parameters of the DC converter to suppress the voltage harmonics of the electrolytic aluminum busbar.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for suppressing voltage harmonics of an electrolytic aluminum busbar according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing a processor to execute the method for suppressing voltage harmonics of an electrolytic aluminum busbar according to any one of claims 1-6 when executed.

10. A computer program product, comprising a computer program which, when executed by a processor, implements the method for suppressing voltage harmonics of an electrolytic aluminum busbar according to any one of claims 1-6.

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