Generator rotating speed control method, device, equipment, storage medium and product

Abstract

The application discloses a generator rotating speed control method, device, equipment, storage medium and product, relates to the vehicle control technical field, and the generator rotating speed control method comprises the following steps: in the case that the generator is in the rotating speed control operation state, the current motor rotating speed of the generator is acquired; the phase of the anti-shake torque of the generator is offset based on the motor rotating speed; the motor rotating speed is adjusted in advance based on the offset anti-shake torque, so that the target torque phase of the generator coincides with the rotating speed fluctuation phase of the generator. The application improves the driving experience of the user.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a generator speed control method, device, equipment, storage medium, and computer program product. Background Technology

[0002] During normal driving, such as when a range-extended vehicle is idling, the engine may experience speed fluctuations and a knocking sound. When the vehicle is idling, the generator system is in speed control mode. Current methods use the PI (Proportional-Integral Control Algorithm) algorithm to regulate the speed. By adjusting the input voltage or current of the motor, the actual speed of the motor is made to reach and stabilize at the preset target speed, thereby solving the problem of vibration and knocking sound caused by the coordination between the generator and the engine.

[0003] However, when the engine experiences high-frequency fluctuations, the existing solution cannot adjust the torque in time, making it impossible to suppress the engine speed vibration. Furthermore, the actual speed fluctuations become more severe, causing the generator and engine gears to knock against each other, resulting in significant noise and a poor driving experience for the user.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main purpose of this application is to provide a generator speed control method, device, equipment, storage medium, and computer program product, aiming to solve the technical problem in the related art that when the engine experiences high-frequency fluctuations, the existing solution cannot adjust the torque in time, causing the generator and engine gears to knock against each other, resulting in obvious noise and a poor driving experience for the user.

[0006] To achieve the above objectives, this application proposes a generator speed control method, which includes:

[0007] When the generator is in speed control operation mode, obtain the current motor speed of the generator;

[0008] Based on the motor speed, the anti-vibration torque of the generator is phase-shifted;

[0009] Based on the anti-shake torque after offset, the motor speed is adjusted in advance so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation.

[0010] In one embodiment, the step of phase-shifting the generator's anti-vibration torque based on the motor speed includes any one of the following:

[0011] Based on the motor speed, the anti-vibration torque of the generator is delayed to offset the phase of the anti-vibration torque;

[0012] Based on the motor speed, the amplitude of the generator speed fluctuation is delayed to offset the phase of the anti-vibration torque.

[0013] In one embodiment, the step of delaying the anti-shake torque of the generator based on the motor speed to phase-shift the anti-shake torque includes:

[0014] Based on the motor speed, calculate the mean and amplitude of the speed fluctuation.

[0015] The anti-shake torque is calculated based on the average speed fluctuation and the speed fluctuation amplitude.

[0016] Based on the phase difference between the current speed fluctuation and the actual response torque of the generator, the anti-vibration torque of the generator is delayed to offset the phase of the anti-vibration torque.

[0017] In one embodiment, the step of delaying the generator speed fluctuation amplitude based on the motor speed to phase-shift the anti-vibration torque includes:

[0018] Based on the motor speed, calculate the speed fluctuation amplitude and the average speed fluctuation, and calculate the phase difference between the current speed fluctuation and the actual response torque of the generator;

[0019] Based on the phase difference, the speed fluctuation amplitude is delayed to obtain the first fluctuation amplitude.

[0020] Based on the first fluctuation amplitude and the average speed fluctuation, the anti-shake torque is calculated, and the anti-shake torque is phase-shifted.

[0021] In one embodiment, the step of adjusting the motor speed in advance based on the offset anti-jitter torque includes:

[0022] Determine the first difference between the motor speed and the target speed;

[0023] The initial torque request value is obtained by calculating and processing the first difference using a preset algorithm.

[0024] The offset anti-shake torque is added to the initial torque request value to obtain the target torque request value;

[0025] The motor speed is adjusted in advance based on the target torque request value.

[0026] In another embodiment, after the step of adjusting the motor speed in advance based on the offset anti-jitter torque, the method further includes:

[0027] Based on the speed adjustment result corresponding to the target torque request value, the phase difference is modified to obtain the modified phase difference;

[0028] Based on the modified phase difference, the anti-shake torque is phase-shifted to obtain the target anti-shake torque;

[0029] The motor speed is adjusted according to the target torque adjustment value corresponding to the target anti-vibration torque until the speed fluctuation reaches the minimum value.

[0030] Furthermore, to achieve the above objectives, this application also proposes a generator speed control device, which includes:

[0031] The acquisition module is used to acquire the current motor speed of the generator when the generator is in speed control operation mode;

[0032] The phase offset module is used to offset the anti-vibration torque of the generator based on the motor speed.

[0033] The adjustment module is used to adjust the motor speed in advance based on the offset anti-shake torque, so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation.

[0034] In addition, to achieve the above objectives, this application also proposes a generator speed control device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the generator speed control method described above.

[0035] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the generator speed control method described above.

[0036] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the generator speed control method described above.

[0037] This application proposes a generator speed control method, device, equipment, storage medium, and computer program product. When the generator is in speed control operation, this application obtains the current motor speed of the generator, shifts the anti-vibration torque of the generator by phase offset based on the motor speed, and adjusts the motor speed in advance by using the offset anti-vibration torque, so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation, avoiding the deterioration of vibration due to response delay. When the engine experiences high-frequency fluctuations, the requested torque can also be adjusted in a timely manner, improving the vibration and knocking noise of the engine in speed control mode and enhancing the user experience. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a flowchart illustrating an embodiment of the generator speed control method of this application.

[0041] Figure 2 This is a schematic diagram of the control method involved in the generator speed control method of this application;

[0042] Figure 3 This is a flowchart illustrating Embodiment 2 of the generator speed control method of this application;

[0043] Figure 4 This is a simplified flowchart illustrating the generator speed control method described in this application.

[0044] Figure 5 This is a schematic diagram comparing the speed fluctuation data adjustments involved in the generator speed control method of this application.

[0045] Figure 6 This is a schematic diagram of the module structure of the generator speed control device according to an embodiment of this application;

[0046] Figure 7 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the generator speed control method in the embodiments of this application.

[0047] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0048] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0049] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0050] The main solution in this application's embodiments is:

[0051] When the generator is in speed control operation mode, obtain the current motor speed of the generator;

[0052] Based on the motor speed, the anti-vibration torque of the generator is phase-shifted;

[0053] Based on the anti-shake torque after offset, the motor speed is adjusted in advance so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation.

[0054] In related technologies, the actual speed of the motor is adjusted to reach and stabilize at a preset target speed by adjusting the input voltage or current of the motor, thereby solving the problem of vibration and knocking noise caused by the coordination between the generator and the engine.

[0055] When the engine experiences high-frequency fluctuations, existing solutions cannot adjust the torque in time, making it impossible to suppress engine speed vibrations. Furthermore, the actual speed fluctuations become more severe, causing the generator and engine gears to knock against each other, resulting in significant noise and a poor driving experience for the user.

[0056] This application proposes a generator speed control method, device, equipment, storage medium, and computer program product. When the generator is in speed control operation, this application obtains the current motor speed of the generator, shifts the anti-vibration torque of the generator by phase offset based on the motor speed, and adjusts the motor speed in advance by using the offset anti-vibration torque, so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation, avoiding the deterioration of vibration due to response delay. When the engine experiences high-frequency fluctuations, the requested torque can also be adjusted in a timely manner, improving the vibration and knocking noise of the engine in speed control mode and enhancing the user experience.

[0057] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or generator speed control device capable of performing the above functions. The following description uses a generator speed control device as an example to illustrate this embodiment and the subsequent embodiments.

[0058] Based on this, the embodiments of this application provide a generator speed control method, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the generator speed control method of this application.

[0059] In this embodiment, the generator speed control method includes steps S10 to S30:

[0060] Step S10: When the generator is in speed control operation mode, obtain the current motor speed of the generator;

[0061] It should be noted that speed-controlled operation refers to the precise control of the generator's speed by adjusting the generator's input voltage, frequency, or current. This control technology has wide applications in electric vehicles, industrial automation, and other fields, aiming to improve energy efficiency, enhance performance, and achieve dynamic response.

[0062] It should be noted that in the application scenario of this embodiment, the generator system will enter the speed control mode when the car or other vehicle is idling. The traditional method will adjust the generator speed by adjusting the input voltage or current of the motor. The current motor speed of the generator can be the fluctuating data that changes over time. The fluctuating data is displayed on the instrument in the form of AC or DC quantity. The fluctuating data includes torque and the phase and amplitude of the speed.

[0063] Step S20: Based on the motor speed, perform phase shift on the generator's anti-vibration torque;

[0064] It should be noted that when adjusting the motor speed using the PI algorithm, an initial torque request value is calculated. The anti-jitter torque is used to compensate for this initial torque request value. The generator's anti-jitter torque is calculated based on the average and amplitude fluctuations of the current motor speed. The anti-jitter torque is used to compensate for the initial torque request value. The calculated anti-jitter torque can be obtained in the following ways:

[0065] T anti-shake =k1×AoF+k2×|MoF|

[0066] Among them, T anti-shake The value represents the anti-shake torque, AoF represents the fluctuation amplitude, |MoF| represents the average fluctuation value, and k1 and k2 represent two different preset scaling factors.

[0067] It should be noted that, depending on the motor speed, the anti-vibration torque of the generator can be phase-shifted in either the anti-vibration torque itself or the fluctuation amplitude in the current speed data.

[0068] It should be noted that the technical effects achieved by adjusting the anti-vibration torque or shifting the amplitude of the fluctuation are the same: to delay the actual response torque so that the phase of the response torque coincides with the speed fluctuation. This allows the actual response torque to increase or decrease in time when the speed increases or decreases, thereby suppressing the speed fluctuation.

[0069] In one feasible implementation, step S20, which involves phase shifting the generator's anti-vibration torque based on the motor speed, includes any one of the following:

[0070] Based on the motor speed, the anti-vibration torque of the generator is delayed to offset the phase of the anti-vibration torque;

[0071] It should be noted that in the generator speed control mode, the initial torque request value is calculated based on the difference between the current speed and the target speed using the PI algorithm. The generator adjusts the motor speed according to the received initial torque request value to obtain the actual response torque. Since there is a delay of t1 between the actual response torque and the requested torque, the actual response torque cannot rise in time to suppress the increase in speed.

[0072] It should be noted that delaying the anti-vibration torque or the amplitude of speed fluctuation is based on the phase between the current speed fluctuation and the actual response torque. Time and phase are interconnected, and torque delay can achieve the effect of phase shift.

[0073] It should be noted that the anti-vibration torque of the generator is calculated based on the current motor speed. The anti-vibration torque is delayed based on the phase between the current speed fluctuation and the actual response torque. When the speed increases or decreases, the actual response torque can increase or decrease in time to suppress the speed fluctuation.

[0074] Based on the motor speed, the amplitude of the generator speed fluctuation is delayed to offset the phase of the anti-vibration torque.

[0075] It should be noted that delaying the amplitude of speed fluctuation is actually delaying the speed fluctuation of the current generator. Delaying the amplitude of speed fluctuation is an alternative to delaying the anti-shake torque. When the anti-shake torque has not been calculated, the anti-shake torque after phase shift can be directly calculated by directly delaying the fluctuation data.

[0076] In one feasible implementation, the step of delaying the generator's anti-vibration torque based on the motor speed to phase-shift the anti-vibration torque includes:

[0077] Based on the motor speed, calculate the mean and amplitude of the speed fluctuation.

[0078] It should be noted that after obtaining the motor speed, the fluctuation amplitude and mean fluctuation can be calculated based on the motor speed fluctuation data. The calculation methods for the speed fluctuation amplitude and mean are as follows:

[0079] Speed ​​fluctuation amplitude:

[0080] Speed ​​fluctuation amplitude refers to the difference between the maximum and minimum speed of a motor during operation. Its calculation formula is:

[0081] Speed ​​fluctuation amplitude = maximum speed - minimum speed;

[0082] This indicator reflects the magnitude of motor speed change and is one of the important parameters for measuring motor operating stability. The average speed fluctuation refers to the average speed of the motor over a period of time.

[0083] The anti-shake torque is calculated based on the average speed fluctuation and the speed fluctuation amplitude.

[0084] It should be noted that the method for calculating the anti-shake torque has already been explained above and will not be repeated here.

[0085] Based on the phase difference between the current speed fluctuation and the actual response torque of the generator, the anti-vibration torque of the generator is delayed to offset the phase of the anti-vibration torque.

[0086] It should be noted that the actual response torque of the generator is the actual response torque obtained after responding to the initial torque request value. Since there may be a delay or phase difference between the actual response torque and the current speed fluctuation, the actual response torque cannot rise in time to suppress the increase in speed, so it is necessary to eliminate this phase difference.

[0087] It should be noted that after calculating the phase difference, the corresponding delay value can be calculated using a formula, which can be:

[0088] Δt=(Δθ / 360°)×(1 / f)

[0089] Where Δθ is the phase difference in degrees, and f is the frequency of the signal.

[0090] Based on the delay value, the anti-vibration torque of the generator is delayed to achieve phase shift of the anti-vibration torque.

[0091] It should be noted that after determining the delay value, the fluctuation data of the generator's anti-vibration torque is delayed based on the delay value in order to perform phase shifting on the anti-vibration torque.

[0092] Step S30: Based on the offset anti-shake torque, the motor speed is adjusted in advance so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation.

[0093] It should be noted that after phase shifting the anti-vibration torque, the shifted anti-vibration torque is obtained. The method of adjusting the motor speed in advance using the shifted anti-vibration torque can be as follows:

[0094] The offset anti-shake torque is superimposed with the initial torque request value to obtain the target torque request value, and then the motor speed is adjusted based on the target torque request value.

[0095] It should be noted that after the anti-shake torque is phase-shifted, the superimposed target torque request value can have a larger delay compared to the previous initial torque request value, so that the response torque and speed fluctuation are in phase. The delay can be 1ms, 5ms, etc., and the size of the delay is determined according to the overall vehicle tuning effect and is not specifically limited.

[0096] In one feasible implementation, step S30, which adjusts the motor speed in advance based on the anti-jitter torque after offset, includes:

[0097] Determine the first difference between the motor speed and the target speed;

[0098] It should be noted that when the motor speed needs to be adjusted, the target speed that the generator needs to be adjusted to is calculated based on the engine speed. The first difference is the speed difference between the motor speed and the target speed.

[0099] The initial torque request value is obtained by calculating and processing the first difference using a preset algorithm.

[0100] It should be noted that the preset algorithm can be the PI algorithm, which has been explained earlier and will not be repeated here. Based on the obtained first difference, the preset algorithm is used to calculate the first difference to obtain the torque that needs to be adjusted and generate the initial torque request value. After receiving the initial torque request value, the generator will generate an actual response torque. However, the actual response torque often cannot accurately adjust to obtain the required motor speed, so the initial torque request value needs to be adjusted.

[0101] The offset anti-shake torque is added to the initial torque request value to obtain the target torque request value;

[0102] The motor speed is adjusted in advance based on the target torque request value.

[0103] It should be noted that the offset anti-shake torque can compensate for the initial torque request value. After the two are superimposed, the required target torque request value can be obtained. Then, the motor speed is adjusted in advance based on the target torque request value to avoid the deterioration of shaking caused by the response delay of the requested torque, improve the adjustment effect, and improve the shaking and knocking noise under generator speed control.

[0104] Specifically, the schematic diagram of the control method involved in the embodiments of this application is as follows: Figure 2As shown, the overall control process is mainly divided into three parts. The first part is the speed control module, which calculates the required output torque value based on the difference between the current speed and the target speed using the PI algorithm. The second part is the anti-shake calculation module, which calculates the anti-shake parameters based on the current speed, performs a phase delay, and outputs the anti-shake torque request corresponding to the anti-shake torque. The third part is the requested torque output module, which superimposes the initial torque request value output by the speed control module and the anti-shake torque value output by the anti-shake calculation module to output the final torque request.

[0105] In one feasible implementation, after step S30 of adjusting the motor speed in advance based on the offset anti-jitter torque, the method further includes:

[0106] Based on the speed adjustment result corresponding to the target torque request value, the phase difference is modified to obtain the modified phase difference;

[0107] It should be noted that after adjusting the motor speed according to the target torque request value, it is necessary to determine whether the speed adjustment result has achieved the maximum optimization effect. If the maximum optimization effect has not been achieved, the phase difference needs to be modified to obtain the modified phase difference. The modification method can be to determine whether the phase of the actual response torque is lagging or advancing relative to the generator speed fluctuation. If it is lagging, the delay value or phase offset value of the anti-shake torque needs to be increased; otherwise, it needs to be reduced.

[0108] Based on the modified phase difference, the anti-shake torque is phase-shifted to obtain the target anti-shake torque;

[0109] It should be noted that after the phase difference is modified, the anti-shake torque is phase-shifted using the modified phase difference to obtain the target anti-shake torque.

[0110] The motor speed is adjusted according to the target torque adjustment value corresponding to the target anti-vibration torque until the speed fluctuation reaches the minimum value.

[0111] It should be noted that the motor speed is adjusted according to the target torque adjustment value corresponding to the target anti-vibration torque. The adjustment results are continuously optimized until the amplitude and average changes of the speed fluctuation reach the minimum value. At this point, the speed fluctuation situation reaches the best adjustment effect, and the adjustment of the anti-vibration torque is stopped.

[0112] This application proposes a generator speed control method, device, equipment, storage medium, and computer program product. When the generator is in speed control operation, this application obtains the current motor speed of the generator, shifts the anti-vibration torque of the generator by phase offset based on the motor speed, and adjusts the motor speed in advance by using the offset anti-vibration torque, so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation, avoiding the deterioration of vibration due to response delay. When the engine experiences high-frequency fluctuations, the requested torque can also be adjusted in a timely manner, improving the vibration and knocking noise of the engine in speed control mode and enhancing the user experience.

[0113] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 3 The step of delaying the generator speed fluctuation amplitude based on the motor speed to phase-shift the anti-vibration torque includes steps S200 to S220:

[0114] Step S200: Based on the motor speed, calculate the speed fluctuation amplitude and the average speed fluctuation, and calculate the phase difference between the current speed fluctuation and the actual response torque of the generator.

[0115] It should be noted that after obtaining the motor speed, the fluctuation amplitude and mean fluctuation can be calculated based on the motor speed fluctuation data. The calculation methods for the speed fluctuation amplitude and mean are as follows:

[0116] Speed ​​fluctuation amplitude:

[0117] Speed ​​fluctuation amplitude refers to the difference between the maximum and minimum speed of a motor during operation. Its calculation formula is:

[0118] Speed ​​fluctuation amplitude = maximum speed - minimum speed;

[0119] This indicator reflects the magnitude of motor speed change and is one of the important parameters for measuring motor operating stability. The average speed fluctuation refers to the average speed of the motor over a period of time.

[0120] It should be noted that the actual response torque of the generator is the actual response torque obtained after responding to the initial torque request value. Since there will be a delay or phase difference between the actual response torque and the motor speed, the actual response torque cannot rise in time to suppress the increase in speed, so it is necessary to eliminate this phase difference.

[0121] Step S210: Based on the phase difference, the speed fluctuation amplitude is delayed to obtain the first fluctuation amplitude;

[0122] It should be noted that the speed fluctuation amplitude is delayed by using the phase difference, which means that the fluctuation data corresponding to the motor speed is delayed to obtain the first fluctuation amplitude.

[0123] Step S220: Based on the first fluctuation amplitude and the average speed fluctuation, the anti-shake torque is calculated, and the anti-shake torque is phase-shifted.

[0124] It should be noted that the anti-shake torque is calculated based on the first fluctuation amplitude and the average speed fluctuation. Since the anti-shake torque is obtained by multiplying the first fluctuation amplitude and the average speed fluctuation by a preset coefficient and then adding them together, the phase shift of the speed fluctuation amplitude is also the phase shift of the anti-shake torque.

[0125] It should be noted that the advantages of phase shifting the speed fluctuation amplitude compared to phase shifting the anti-vibration torque are mainly reflected in the following aspects:

[0126] Improving system stability: By adjusting the phase of the speed fluctuation amplitude, vibration and resonance phenomena in the system can be effectively suppressed, thereby improving system stability. This stability is particularly important for motor systems that require high-precision control.

[0127] Optimize dynamic performance: Phase shift can improve the dynamic response characteristics of the motor, making the motor more stable when starting, stopping or changing load, reducing shock and vibration, thereby improving the overall dynamic performance.

[0128] Reduced mechanical losses: By reducing vibration and resonance, phase shift helps reduce mechanical losses in motors and their transmission systems, extending the service life of equipment.

[0129] Improved control precision: Phase offset can improve the control precision of motor control systems, enabling motors to follow command signals more accurately and achieve more precise speed and position control.

[0130] Highly adaptable: Phase shifting technology can be adjusted according to different application scenarios and needs, exhibiting strong adaptability and flexibility.

[0131] Cost-effectiveness: Compared to other complex vibration suppression methods, such as adding dampers or changing structural design, phase shifting is generally simpler and more economical, and has a high cost-effectiveness.

[0132] In this embodiment, phase shifting of the speed fluctuation amplitude can significantly improve the stability, dynamic performance and control accuracy of the motor without increasing system complexity, while reducing mechanical losses and costs.

[0133] For example, to help understand the implementation flow of the generator speed control method obtained in this embodiment combined with the above embodiment one, please refer to... Figure 4 , Figure 4 A simplified flowchart of a generator speed control method is provided, specifically:

[0134] By acquiring the motor speed, and then obtaining the AC and DC current of the speed, which is the fluctuation data, the anti-vibration torque value is calculated based on the fluctuation data. The anti-vibration torque is then delayed, and the torque request value calculated by the speed control module is superimposed with the anti-vibration torque to output the final requested torque.

[0135] Specifically, Figure 5 This is a schematic diagram comparing the adjustment of speed fluctuation data involved in the generator speed control method of this application. Figure 5 Thus, waveforms of the requested torque, actual speed, and actual response torque can be obtained, where, in Figure 5 In the upper part of the process, as the engine speed increases, the requested torque increases in a timely manner to try to suppress the increase in speed. However, there is a delay of t1 between the actual response torque and the requested torque, causing the actual response torque to fail to increase in time to suppress the increase in speed. When the response torque increases, the direction of engine speed change changes, and the speed begins to decrease. When it reaches near the target speed, the actual torque reaches its maximum value, causing the speed to continue to decrease, resulting in a large negative fluctuation. Ultimately, the fluctuation of the actual speed becomes more severe, causing the generator and engine gears to knock against each other, resulting in significant noise.

[0136] exist Figure 5 The lower half of the chart is the adjusted comparison. The average and amplitude of the generator speed fluctuations are extracted and used to calculate the anti-vibration torque. After phase shifting the anti-vibration torque, it is superimposed with the output requested torque of the speed control to obtain the final requested torque of the speed control, ensuring that the final requested torque achieves the desired effect. Figure 5 The waveform shown in the figure below illustrates this effect. The requested torque is delayed by t2 compared to the previous torque, causing the response torque to coincide with the speed fluctuation phase. When the speed increases or decreases, the actual response torque can increase or decrease in a timely manner to suppress the speed fluctuation, avoiding the deterioration of vibration caused by the response delay of the requested torque, improving the regulation effect, and reducing vibration and knocking noise under generator speed control.

[0137] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the generator speed control method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0138] This application also provides a generator speed control device, please refer to... Figure 6 The generator speed control device includes:

[0139] The acquisition module 10 is used to acquire the current motor speed of the generator when the generator is in speed control operation mode;

[0140] Phase offset module 20 is used to phase offset the anti-vibration torque of the generator based on the motor speed;

[0141] The adjustment module 30 is used to adjust the motor speed in advance based on the anti-shake torque after the offset, so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation.

[0142] Optionally, the phase offset module includes:

[0143] The first delay unit is used to delay the anti-shake torque of the generator based on the motor speed, so as to shift the phase of the anti-shake torque.

[0144] The second delay unit is used to delay the amplitude of the generator speed fluctuation based on the motor speed, so as to shift the phase of the anti-vibration torque.

[0145] Optionally, the first delay unit includes:

[0146] The first calculation subunit is used to calculate the mean value and amplitude of the speed fluctuation based on the motor speed.

[0147] The second calculation subunit is used to calculate the anti-shake torque based on the average speed fluctuation and the speed fluctuation amplitude;

[0148] The delay subunit is used to delay the generator's anti-vibration torque based on the phase difference between the current speed fluctuation and the generator's actual response torque, so as to shift the phase of the anti-vibration torque.

[0149] Optionally, the second delay unit includes:

[0150] The third calculation subunit is used to calculate the speed fluctuation amplitude and the average speed fluctuation based on the motor speed, and to calculate the phase difference between the current speed fluctuation and the actual response torque of the generator.

[0151] The processing subunit is used to perform delay processing on the speed fluctuation amplitude based on the phase difference to obtain the first fluctuation amplitude;

[0152] The fourth calculation subunit is used to calculate the anti-shake torque based on the first fluctuation amplitude and the average speed fluctuation, so as to perform phase shifting on the anti-shake torque.

[0153] Optionally, the adjustment module includes:

[0154] A determining unit is used to determine the first difference between the motor speed and the target speed;

[0155] The processing unit is used to calculate and process the first difference using a preset algorithm to obtain the initial torque request value;

[0156] The superposition unit is used to superimpose the offset anti-shake torque with the initial torque request value to obtain the target torque request value;

[0157] The adjustment unit is used to adjust the motor speed in advance according to the target torque request value.

[0158] Optionally, the device further includes:

[0159] The modification module is used to modify the phase difference based on the speed adjustment result corresponding to the target torque request value, so as to obtain the modified phase difference;

[0160] The processing module is used to perform phase shift processing on the anti-shake torque based on the modified phase difference to obtain the target anti-shake torque;

[0161] The speed adjustment module is used to adjust the motor speed according to the target torque adjustment value corresponding to the target anti-vibration torque until the speed fluctuation reaches the minimum value.

[0162] The generator speed control device provided in this application, employing the generator speed control method in the above embodiments, can solve the technical problem of generator speed control. Compared with the prior art, the beneficial effects of the generator speed control device provided in this application are the same as those of the generator speed control method provided in the above embodiments, and other technical features in the generator speed control device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0163] This application provides a generator speed control device and a generator controller. The generator speed control device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the generator speed control method in the above embodiment 1.

[0164] The following is for reference. Figure 7The diagram illustrates a structural schematic of a generator speed control device suitable for implementing embodiments of this application. The generator speed control device in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 7 The generator speed control device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0165] like Figure 7 As shown, the generator speed control device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the generator speed control device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. Communication device 1009 allows the generator speed control device to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows generator speed control devices with various systems, it should be understood that implementation or possession of all the systems shown is not required. More or fewer systems may be implemented alternatively.

[0166] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0167] The generator speed control device provided in this application, employing the generator speed control method in the above embodiments, can solve the technical problem of generator speed control. Compared with the prior art, the beneficial effects of the generator speed control device provided in this application are the same as those of the generator speed control method provided in the above embodiments, and other technical features of the generator speed control device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0168] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0169] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0170] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the generator speed control method in the above embodiments.

[0171] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0172] The aforementioned computer-readable storage medium may be included in the generator speed control device; or it may exist independently and not be assembled into the generator speed control device.

[0173] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the generator speed control device, cause the generator speed control device to:

[0174] When the generator is in speed control operation mode, obtain the current motor speed of the generator;

[0175] Based on the motor speed, the anti-vibration torque of the generator is phase-shifted;

[0176] Based on the anti-shake torque after offset, the motor speed is adjusted in advance so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation.

[0177] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and 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, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0178] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0179] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0180] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described generator speed control method, thereby solving the technical problem of generator speed control. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the generator speed control method provided in the above embodiments, and will not be repeated here.

[0181] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the generator speed control method described above.

[0182] The computer program product provided in this application can solve the technical problem of generator speed control. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the generator speed control method provided in the above embodiments, and will not be repeated here.

[0183] The above are only some embodiments of this application and do not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A generator speed control method, characterized in that, The method includes: When the generator is in speed control operation mode, obtain the current motor speed of the generator; Based on the motor speed, the anti-vibration torque of the generator is phase-shifted; Based on the offset anti-shake torque, the motor speed is adjusted in advance so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation.

2. The method as described in claim 1, characterized in that, The step of phase-shifting the generator's anti-vibration torque based on the motor speed includes any one of the following: Based on the motor speed, the anti-vibration torque of the generator is delayed to offset the phase of the anti-vibration torque; Based on the motor speed, the generator speed fluctuation amplitude is delayed to shift the phase of the anti-shake torque.

3. The method as described in claim 2, characterized in that, The step of delaying the anti-vibration torque of the generator based on the motor speed to shift the phase of the anti-vibration torque includes: Based on the motor speed, calculate the mean speed fluctuation and the amplitude of the speed fluctuation; The anti-shake torque is calculated based on the average speed fluctuation and the speed fluctuation amplitude. Based on the phase difference between the current speed fluctuation and the actual response torque of the generator, the anti-vibration torque of the generator is delayed to shift the phase of the anti-vibration torque.

4. The method as described in claim 2, characterized in that, The step of delaying the generator speed fluctuation amplitude based on the motor speed to phase-shift the anti-vibration torque includes: Based on the motor speed, calculate the speed fluctuation amplitude and the average speed fluctuation, and calculate the phase difference between the current speed fluctuation and the actual response torque of the generator; Based on the phase difference, the speed fluctuation amplitude is delayed to obtain the first fluctuation amplitude; Based on the first fluctuation amplitude and the average speed fluctuation, the anti-shake torque is calculated, and the anti-shake torque is phase-shifted.

5. The method according to any one of claims 1-4, characterized in that, The step of adjusting the motor speed in advance based on the anti-shake torque after offset includes: Determine the first difference between the motor speed and the target speed; The first difference is calculated and processed using a preset algorithm to obtain the initial torque request value; The offset anti-shake torque is superimposed on the initial torque request value to obtain the target torque request value; The motor speed is adjusted in advance based on the target torque request value.

6. The method as described in claim 5, characterized in that, After the step of adjusting the motor speed in advance based on the anti-shake torque after the offset, the method further includes: Based on the speed adjustment result corresponding to the target torque request value, the phase difference is modified to obtain the modified phase difference; Based on the modified phase difference, the anti-shake torque is phase-shifted to obtain the target anti-shake torque; The motor speed is adjusted according to the target torque adjustment value corresponding to the target anti-shake torque until the speed fluctuation reaches the minimum value.

7. A generator speed control device, characterized in that, The device includes: The acquisition module is used to acquire the current motor speed of the generator when the generator is in speed control operation mode; A phase offset module is used to perform phase offset on the anti-vibration torque of the generator based on the motor speed; The adjustment module is used to adjust the motor speed in advance based on the offset anti-shake torque, so that the phase of the generator's target torque coincides with the phase of the generator's speed fluctuation.

8. A generator speed control device, characterized in that, The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the generator speed control method as described in any one of claims 1 to 6.

9. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the generator speed control method as described in any one of claims 1 to 6.

10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the steps of the generator speed control method as described in any one of claims 1 to 6.

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