Power regulation method, device and working machine

Abstract

The application relates to the technical field of working machines, and discloses a power adjusting method and device and a working machine, which comprises the following steps: obtaining the current active power of the working machine; querying a power corresponding relationship based on the current active power to obtain corresponding target allowable power, wherein the power corresponding relationship is used for representing the corresponding relationship between the active power and the allowable power; and adjusting the current allowable power of the working machine based on the target allowable power. The method can adjust the current allowable power of the working machine, so that the allowable power control can be performed in advance before the peak power occurs, and the working safety of the working machine is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of working machines, and particularly relates to a power regulation method and device and a working machine. BACKGROUND

[0002] With the continuous development of economy, working machines have become one of the most important engineering machines in engineering construction. Common working machines can be divided into internal combustion engine driven working machines and electrically driven working machines (i.e. electric working machines) according to driving modes. Among them, the working machine with a fixed-frequency motor as a power source has strong overload capacity and rapid torque response, and has been widely used in engineering construction.

[0003] However, in the related art, the active power control of the working machine with a fixed-frequency motor as a power source is completely limited by the load end, and the active power control depends on the acquisition frequency of the sensor and the operation speed of the controller, so that when the allowable power is reached, the overshoot phenomenon will occur, i.e. the peak power exceeding the allowable rate threshold, and therefore, the allowable power of the motor needs to be controlled to ensure the safe operation of the working machine. SUMMARY

[0004] Therefore, the present application provides a power regulation method, device and working machine to solve the problem of excessive peak power in the related art.

[0005] In a first aspect, the present application provides a power regulation method, which comprises:

[0006] obtaining the current active power of the working machine;

[0007] querying the power corresponding relationship based on the current active power to obtain the corresponding target allowable power, wherein the power corresponding relationship is used to represent the corresponding relationship between the active power and the allowable power, and the target allowable power is used to represent the maximum value of the current allowable power of the working machine;

[0008] adjusting the current allowable power of the working machine based on the target allowable power.

[0009] The power regulation method provided by the present application can intervene in advance and control the allowable power before the peak power occurs, thereby improving the operation safety of the working machine.

[0010] In some optional embodiments, the power corresponding relationship is determined based on the following steps:

[0011] obtaining sample active power corresponding to sample allowable power of the working machine, to obtain sample power corresponding relationship of the sample active power and the sample allowable power;

[0012] interpolating the sample power corresponding relationship to obtain the power corresponding relationship.

[0013] The power adjusting method provided by the embodiment of the present application obtains sample active power corresponding to sample allowable power of the working machine, to obtain sample power corresponding relationship of the sample active power and the sample allowable power, interpolates the sample power corresponding relationship to obtain the power corresponding relationship, to obtain target allowable power corresponding to the current active power at each time, to avoid the step change of the power of the working machine, and to ensure the working safety of the working machine.

[0014] In some optional embodiments, the power corresponding relationship is represented by a curve, and the slope of the curve decreases with the increase of the allowable power.

[0015] The power adjusting method provided by the embodiment of the present application represents the power corresponding relationship by a curve with the slope decreasing with the increase of the allowable power, to slowly release the allowable power of the working machine during the working process of the working machine, and to slow down the release speed when the allowable power of the working machine is closer to the maximum value, to avoid the power overshoot of the working machine.

[0016] In some optional embodiments, the power corresponding relationship is represented by a straight line, and the slope of the straight line is determined based on the maximum value of the allowable power and the minimum value of the allowable power.

[0017] The power adjusting method provided by the embodiment of the present application represents the power corresponding relationship by a straight line with the slope determined based on the maximum value and the minimum value of the allowable power, to slowly release the allowable power of the working machine during the working process of the working machine, to avoid the power overshoot of the working machine.

[0018] In some optional embodiments, the method further comprises:

[0019] obtaining the working gear of the working machine;

[0020] querying the power corresponding relationship based on the working gear and the current active power, to obtain the corresponding target allowable power.

[0021] The power adjustment method provided by the embodiment of the present application obtains the working gear of the working machine, and obtains the corresponding target allowable power based on the working gear and the current active power, so that different power adjustments are realized on the current allowable power of the working machine under different working gears.

[0022] In some optional embodiments, the power corresponding relationship is represented by a straight line with different slopes corresponding to the working gears.

[0023] The power adjustment method provided by the embodiment of the present application represents the power corresponding relationship by a straight line with a slope determined based on different working gears, so that the allowable power is slowly released based on the current working gear of the working machine during the operation of the working machine, thereby avoiding the situation of power overshoot of the working machine.

[0024] In some optional embodiments, the power corresponding relationship is represented by a power curve, and the obtaining of the corresponding target allowable power based on the current active power and the power corresponding relationship comprises:

[0025] querying the allowable power corresponding to the current active power in the power curve;

[0026] determining the target allowable power based on the allowable power corresponding to the current active power.

[0027] The power adjustment method provided by the embodiment of the present application queries the allowable power corresponding to the current active power in the power curve, and determines the target allowable power based on the allowable power corresponding to the current active power, thereby avoiding the situation of power overshoot of the working machine during the operation.

[0028] In some optional embodiments, the adjustment of the current allowable power of the working machine based on the target allowable power comprises:

[0029] calculating the difference power between the current allowable power and the target allowable power;

[0030] adjusting the current allowable power based on the difference power, so as to adjust the current allowable power to the target allowable power.

[0031] The power adjustment method provided by the embodiment adjusts the current allowable power of the working machine based on the target allowable power when the current active power of the working machine is obtained, obtains the corresponding target allowable power based on the current active power and the power corresponding relationship for representing the corresponding relationship between the active power and the allowable power, and adjusts the current allowable power of the working machine based on the target allowable power, so as to intervene in advance and control the allowable power before the peak power occurs, thereby improving the operation safety of the working machine.

[0032] In a second aspect, the present application provides a power adjustment device, the device comprising:

[0033] an information acquisition module configured to acquire a current active power of the working machine;

[0034] a parameter query module configured to query a power correspondence relationship based on the current active power to obtain a corresponding target allowable power, the power correspondence relationship being configured to represent a corresponding relationship between the active power and the allowable power, and the target allowable power being configured to represent a maximum value of the current allowable power of the working machine;

[0035] a power adjustment module configured to adjust the current allowable power of the working machine based on the target allowable power.

[0036] The power adjustment device provided by the embodiment of the present application can, when the current active power of the working machine is acquired, query the power correspondence relationship representing the corresponding relationship between the active power and the allowable power based on the current active power to obtain the corresponding target allowable power, and adjust the current allowable power of the working machine based on the target allowable power, so as to intervene in advance and perform allowable power control before the peak power occurs, thereby improving the working safety of the working machine.

[0037] In a third aspect, the present application provides an electronic device comprising a memory and a processor;

[0038] The memory is connected with the processor and is configured to store a program;

[0039] The processor is configured to execute the operations of the power adjustment method by running the program in the memory.

[0040] In a fourth aspect, the present application provides a working machine, wherein a power adjustment system is arranged in the working machine, and the power adjustment system is configured to execute the operations of the power adjustment method.

[0041] In a fifth aspect, the present application provides a computer readable storage medium, wherein the computer readable storage medium stores computer instructions, and the computer instructions are configured to make a computer execute the power adjustment method of the first aspect or any of the corresponding embodiments thereof.

[0042] It should be noted that the corresponding beneficial effects of the power adjustment device, the working machine and the computer readable storage medium provided by the embodiment of the present application are described above in the description of the power adjustment method, and will not be described here again. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are some embodiments of the present application, and the other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0044] Figure 1 is a flowchart of the power regulation method of the embodiment of the present application;

[0045] Figure 2 is a regulation diagram of the power regulation method of the embodiment of the present application;

[0046] Figure 3 is another regulation diagram of the power regulation method of the embodiment of the present application;

[0047] Figure 4 is still another regulation diagram of the power regulation method of the embodiment of the present application;

[0048] Figure 5 is a data flow diagram of the power regulation method of the embodiment of the present application;

[0049] Figure 6 is a test diagram of the power regulation method of the embodiment of the present application;

[0050] Figure 7 is a structural block diagram of the power regulation device of the embodiment of the present application;

[0051] Figure 8 is a structural diagram of the electronic device of the embodiment of the present application. DETAILED DESCRIPTION

[0052] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative effort belong to the protection scope of the present application.

[0053] In the related art of power regulation, for the working machine with the fixed-frequency motor as the power source, the active power control is completely limited by the load end, and the active power control depends on the collection frequency of the sensor and the operation speed of the controller. Therefore, when the allowable power is reached, the overshoot phenomenon will occur, that is, the peak power exceeding the allowable rate threshold will occur, thereby affecting the service life of the working machine. Therefore, the allowable power of the motor needs to be controlled to ensure the safe operation of the working machine.

[0054] Based on this, the embodiment of the present application provides a power adjustment method, device and working machine. When the current active power of the working machine is obtained, the corresponding target allowable power is obtained by querying the power corresponding relationship in the control system (or cloud) of the working machine based on the current active power, and the power corresponding relationship is used to represent the corresponding relationship between the active power and the allowable power. Then, the current allowable power of the working machine is adjusted based on the target allowable power, so as to intervene in advance and control the allowable power before the peak power occurs, thereby improving the operation safety of the working machine.

[0055] In the embodiment, a power adjustment method is provided, Figure 1 The flow chart of the power adjustment method according to the embodiment of the present application is shown in Figure 1 The flow chart includes the following steps:

[0056] Step S101, obtaining the current active power of the working machine.

[0057] In the embodiment, the main pump pressure of the load end can be collected by the pressure sensor, and the main pump displacement of the load end can be collected by the flow sensor, and then the current active power of the working machine can be calculated based on the product of the collected main pump pressure and main pump displacement. The current active power of the working machine is calculated, so that the target allowable power of the working machine can be adjusted in time based on the current active power of the working machine.

[0058] In some optional embodiments, the current torque of the working machine can also be obtained, and then the target allowable power or torque of the working machine can be adjusted in time based on the current torque of the working machine.

[0059] Step S102, querying the power corresponding relationship based on the current active power to obtain the corresponding target allowable power.

[0060] The power corresponding relationship is used to represent the corresponding relationship between the active power and the allowable power, and the target allowable power is used to represent the maximum value of the current allowable power of the working machine.

[0061] In some optional embodiments, when the power corresponding relationship is determined, a plurality of sample active powers of the working machine corresponding to sample allowable powers can be obtained to obtain a sample power corresponding relationship between the plurality of sample active powers and the sample allowable powers. Then, the sample power corresponding relationship is interpolated to obtain the power corresponding relationship.

[0062] Specifically, the sample allowable power corresponding to the plurality of sample active powers of the working machine can include a maximum value of the allowable power and a minimum value of the allowable power. The maximum value of the allowable power can be the rated power, and the minimum value of the allowable power can be a preset percentage of the rated power. The sample power correspondence relationship is obtained by interpolating the sample power correspondence relationship based on the sample power correspondence relationship between the plurality of sample active powers and the sample allowable power. That is, the sample power correspondence relationship is interpolated to obtain the power correspondence relationship based on the maximum value of the allowable power and the minimum value of the allowable power. In addition, the sample allowable power corresponding to the plurality of sample active powers of the working machine can include an intermediate value between the maximum value of the allowable power and the minimum value of the allowable power. The intermediate value of the allowable power can be determined based on the working gear of the working machine, and can also be determined based on the working demand of the working machine.

[0063] In some optional embodiments, when interpolating the sample power correspondence relationship, a linear interpolation method can be used, or a nonlinear interpolation method can be used.

[0064] Specifically, for the allowable power less than or equal to the minimum value of the allowable power (i.e., the minimum allowable power), since the corresponding active power is raised to the minimum value of the allowable power, the peak overshoot condition is low, and the impact on the service life of the working machine is also low. Therefore, for the allowable power less than or equal to the minimum value of the allowable power (i.e., the minimum allowable power), a linear interpolation method can be used, such as a fixed allowable power interpolation method, i.e., an interpolation method that keeps the allowable power unchanged. For the allowable power greater than the minimum value of the allowable power (i.e., the minimum allowable power) and less than or equal to the maximum value of the allowable power (i.e., the maximum allowable power), since the corresponding active power is raised to the maximum value of the allowable power, the peak overshoot condition is high, and the impact on the service life of the working machine is also high. Therefore, for the allowable power greater than the minimum value of the allowable power (i.e., the minimum allowable power) and less than or equal to the maximum value of the allowable power (i.e., the maximum allowable power), a linear interpolation method can be used, such as a non-fixed allowable power interpolation method. For the allowable power greater than the minimum value of the allowable power (i.e., the minimum allowable power) and less than or equal to the maximum value of the allowable power (i.e., the maximum allowable power), since the corresponding active power is raised to the maximum value of the allowable power, the peak overshoot condition is high, and the impact on the service life of the working machine is also high. Therefore, for the allowable power greater than the minimum value of the allowable power (i.e., the minimum allowable power) and less than or equal to the maximum value of the allowable power (i.e., the maximum allowable power), a nonlinear interpolation method can also be used, such as a linear interpolation method with smoothing processing, i.e., an interpolation method that the greater the allowable power, the lower the power raising speed.

[0065] The power adjustment method provided by the embodiment of the application obtains a plurality of sample active powers of the working machine and a plurality of sample allowable powers corresponding to the plurality of sample active powers, to obtain a sample power corresponding relationship between the plurality of sample active powers and the plurality of sample allowable powers, performs interpolation processing on the sample power corresponding relationship, to obtain a power corresponding relationship, and obtains a target allowable power corresponding to the current active power at each moment, to avoid a step change in the power of the working machine, thereby ensuring the working safety of the working machine.

[0066] In step S103, the current allowable power of the working machine is adjusted based on the target allowable power.

[0067] Specifically, the current allowable power of the working machine is obtained, and the current allowable power is adjusted to the target allowable power.

[0068] In some optional embodiments, a difference power between the current allowable power and the target allowable power of the working machine can be obtained, and the current allowable power is adjusted based on the difference power, and then the current allowable power of the working machine is adjusted to the target allowable power, to limit the increase of the current active power of the working machine and avoid a power overshoot condition.

[0069] The power adjustment method provided by the embodiment can obtain the target allowable power corresponding to the current active power of the working machine by querying the power corresponding relationship for representing the corresponding relationship between the active power and the allowable power based on the current active power when the current active power of the working machine is obtained, and adjust the current allowable power of the working machine based on the target allowable power, to intervene in advance and perform allowable power control before the peak power occurs, thereby improving the working safety of the working machine.

[0070] In some optional embodiments, a sample power corresponding relationship between a plurality of sample active powers and a plurality of sample allowable powers of the working machine can be determined based on the plurality of sample allowable powers corresponding to the plurality of sample active powers, and the sample power corresponding relationship is interpolated to obtain a power corresponding relationship, and the power corresponding relationship can be represented by a curve, that is, the curve slope of the power curve decreases as the allowable power increases.

[0071] Specifically, please refer to Figure 2 The plurality of sample allowable powers corresponding to the plurality of sample active powers of the working machine can include a minimum value Q back1 of the allowable power corresponding to the active power (real-time power) Q max1 , a maximum value Q back2 of the allowable power corresponding to the active power (real-time power) Q max2 , and a maximum value Q max2 of the allowable power. The maximum value Q max1The preset percentage of the rated power or the maximum set power, such as 70%. By interpolating the sample power corresponding relationship based on the maximum value Q max2 of the allowable power and the minimum value Q max1 of the allowable power, when the allowable power is greater than the minimum value Q max1 of the allowable power and less than or equal to the maximum value Q max2 of the allowable power, the corresponding active power is raised to the maximum value of the allowable power, the peak overshoot condition is high, and the influence on the service life of the working machine is also high; therefore, when interpolating the allowable power greater than the minimum value Q max1 of the allowable power and less than or equal to the maximum value Q max2 of the allowable power, a nonlinear interpolation method represented by a curve can be used, that is, the greater the allowable power, the lower the corresponding power raising speed, so as to obtain the target allowable power corresponding to the current active power at each moment, avoid the step power change of the working machine, and ensure the working safety of the working machine.

[0072] The power adjusting method provided by the embodiment of the application represents the power corresponding relationship by a curve with a slope decreasing with the increase of the allowable power, so as to slowly release the allowable power of the working machine during the working process of the working machine, and the slower the release speed is when the allowable power of the working machine is closer to the maximum value, thereby avoiding the power overshoot condition of the working machine.

[0073] In some optional embodiments, a sample power corresponding relationship of the multiple sample active powers and the sample allowable powers corresponding to the multiple sample active powers of the working machine can be determined, the sample power corresponding relationship is interpolated to obtain a power corresponding relationship, and the power corresponding relationship can be represented by a straight line, and the slope of the straight line is determined based on the maximum value and the minimum value of the allowable power.

[0074] Specifically, referring to Figure 3 , the sample allowable powers corresponding to the multiple sample active powers of the working machine can include the minimum value Q back1 of the allowable power corresponding to the active power (real-time power) Q max1 , and the maximum value Q back2 of the allowable power corresponding to the active power (real-time power) Q max2 . The maximum value Q max2 of the allowable power can be the rated power or the maximum set power; and the minimum value Q max1 of the allowable power can be the rated power or a preset percentage of the maximum set power, such as 70%. By interpolating the sample power corresponding relationship based on the maximum value Q max2 of the allowable power and the minimum value Q max1 of the allowable power, when the allowable power is greater than the minimum value Q max1 of the allowable power and less than or equal to the maximum value Q max2 of the allowable power, the corresponding active power is raised to the maximum value of the allowable power, the peak overshoot condition is high, and the influence on the service life of the working machine is also high; therefore, when interpolating the allowable power greater than the minimum value Q max1 of the allowable power and less than or equal to the maximum value Q max2 of the allowable power, a nonlinear interpolation method represented by a curve can be used, that is, the greater the allowable power, the lower the corresponding power raising speed, so as to obtain the target allowable power corresponding to the current active power at each moment, avoid the step power change of the working machine, and ensure the working safety of the working machine.When the sample power corresponding relationship is interpolated, for the allowable power greater than the minimum value Q max1 and less than or equal to the maximum value Q max2 , the corresponding active power is raised to the maximum value of the allowable power, the peak overshoot condition is high, and the influence on the service life of the working machine is also high; therefore, for the interpolation of the power corresponding relationship of the allowable power greater than the minimum value Q max1 and less than or equal to the maximum value Q max2 , the linear interpolation method represented by a straight line can be used, such as obtaining the adjustment time of the working machine from the minimum allowable power to the maximum allowable power; based on the adjustment time, the minimum allowable power and the maximum allowable power are processed by a slope, so as to obtain a power adjustment curve with a fixed slope, that is, the release allowable power corresponding to Q back1 is Q max1 , the release allowable power corresponding to Q back2 is Q max2 , and the change from Q back1 to Q back2 is a step change, and the response from Q max1 to Q max2 is a slope response, so as to avoid the step power change of the working machine, thereby ensuring the operation safety of the working machine.

[0075] The power adjustment method provided by the embodiment of the application represents the power corresponding relationship by a straight line with a slope determined based on the maximum value and the minimum value of the allowable power, so as to slowly release the allowable power of the working machine during the operation of the working machine, thereby avoiding the power overshoot condition of the working machine.

[0076] In some optional embodiments, the working gear of the working machine can also be obtained, the power corresponding relationship is queried based on the working gear and the current active power, and the corresponding target allowable power is obtained.

[0077] Specifically, first, the target power curve of the working machine is obtained by querying the power adjustment curve table based on the working gear, the target power curve is the power curve corresponding to the working gear in the power curve table, and the power curve table is used to represent the corresponding relationship between the active power and the allowable power; then, the allowable power corresponding to the current active power in the power curve can be queried based on the current active power; and the target allowable power is determined based on the allowable power corresponding to the current active power.

[0078] The power adjustment method provided in this embodiment of the invention obtains the working gear of the working machine and queries the power correspondence based on the working gear and the current active power to obtain the corresponding target allowable power. This enables the working machine to adjust the current allowable power differently under different working gears, thereby avoiding power overshoot during operation.

[0079] In some optional implementations, the sample power correspondence between multiple sample active power and sample allowable power can be determined based on the sample allowable power corresponding to multiple sample active power of the operating machinery. The sample power correspondence is then interpolated to obtain the power correspondence. This power correspondence is characterized by a straight line with a different slope corresponding to the working gear, that is, the slope of the straight line representing the power correspondence is different for different working gears.

[0080] For details, please refer to Figure 4 The allowable power corresponding to the active power samples of the operating machinery can include active power (real-time power) Q. back1 The corresponding minimum allowable power Q max1 And active power (real-time power) Q back2 The maximum allowable power Q max2 The maximum allowable power Q max2 It can be the rated power or the maximum set power; the minimum allowable power Q max1 A preset percentage, such as 70%, can be set for the rated power or maximum power. This is based on the maximum allowable power Q. max2 and the minimum allowable power Q max1 When interpolating the power correspondence of the samples, the operating gear of the machinery can be obtained first. Different operating gears correspond to the minimum value Q greater than the allowable power. max1 And less than or equal to the maximum allowable power Q max2 The allowable power varies depending on the operating level. When the active power reaches its maximum allowable power, the peak overshoot occurs differently, significantly impacting the lifespan of the machinery. Therefore, for values ​​greater than the minimum allowable power Q... max1 And less than or equal to the maximum allowable power Q max2 When interpolating the power correspondence of allowable power, it can be done by using linear interpolation of different working levels represented by straight lines with different slopes. That is, the slope of the straight line representing the power correspondence is different for different working levels. For example, the slope of the straight line representing the power correspondence of working level 1 is greater than the slope of the straight line representing the power correspondence of working level 11.

[0081] The power adjusting method provided by the embodiment of the application is characterized by a linear representation of the power corresponding relationship with a slope determined based on different working gears, so as to slowly release the allowable power based on the current working gear of the working machine during the working process of the working machine, thereby avoiding the power overshoot of the working machine.

[0082] The power adjusting process provided by the embodiment of the application is described in detail below with a specific example.

[0083] Please refer to Figure 5 , first, the high-voltage cabinet installs an intelligent electric meter to collect the voltage, current, active power and other parameters of the working machine in real time and transmits them to the high-voltage PLC; the high-voltage PLC sends the collected values to the main controller of the working machine in real time through the CAN line; generally, the active power Q of the main pump end is calculated by the main pump pressure p and the main pump displacement q collected by the main control, that is, Q=k (coefficient) *p*q, and the main controller of the working machine sets the allowable power Q max , controls the main pump displacement q through the collected main pump pressure p, thereby ensuring Q≤Q max , and achieves the purpose of controlling power, as follows:

[0084] The main controller sets the allowable power Q max curve, the horizontal coordinate is the real-time active power Q back collected by the high-voltage cabinet, that is, the current active power, and the vertical coordinate is the allowable power Q max . That is, the allowable power Q max in the main controller is changed from a constant value to a value that changes with the real-time active power Q back , wherein the allowable power Q max will not exceed the maximum value set by the system, that is:

[0085] Q max =m*Q back

[0086] Q max1 ≤Q max ≤Q max2

[0087] 0≤Q back ≤Q back2

[0088] Q back1 ≥Q max1

[0089] Q back2 ≤Q max2

[0090] Q max1The minimum value of the allowable power is generally 70% of the maximum value of the allowable power, and the specific adjustment is according to the influence on the working machine speed; Q max2 The maximum value of the allowable power is the upper limit of the work; Q back1 The release starting point is not reached Q back1 The allowable power released when Q max1 ; Q back2 The release end point.

[0091] When the working machine shown in Fig. Figure 6 165-ton electric hydraulic excavator) is tested, the handle signal and the motor active power can be collected through the CAN signal.

[0092] Specifically, first, the handle is slowly pulled, and the oil cylinder is gradually extended from the retracted state to the maximum stroke pressure; then the time-power curve before the power regulation method of the application is collected, and the time-power curve after the power regulation method of the application is collected; after comparison, it is found that the peak power is reduced after the power regulation method of the application is used; when the machine is in a static state, the active power gradually rises from light load to pressure holding heavy load, and the peak power is less than that before the power regulation method of the application is used, and the single-action speed has no effect on the performance of the working machine.

[0093] The power regulation method provided by the embodiment of the application intervenes in control in advance during the active power loading process, prevents the occurrence of peak power exceeding the set power, and protects the normal operation of the machine; the slope release function (differentiate the input x, and then load according to the loading time t), and reference Figure 3 . Therefore, it is not necessary to spend much time on the calibration of the power release curve; while limiting the peak power, the performance of the machine is basically not affected.

[0094] In the embodiment, a power regulation device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has been described above. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware is also possible and is conceived.

[0095] The embodiment provides a power regulation device, as shown in Fig. Figure 7 , comprising:

[0096] The information acquisition module 701 is used to acquire the current active power of the working machine.

[0097] The parameter query module 702 is configured to query the power corresponding relationship based on the current active power, and obtain the corresponding target allowable power. The power corresponding relationship is used to represent the corresponding relationship between the active power and the allowable power. The target allowable power is used to represent the maximum value of the current allowable power of the working machine.

[0098] The power adjustment module 703 is configured to adjust the current allowable power of the working machine based on the target allowable power.

[0099] In some optional embodiments, the parameter query module 702 includes:

[0100] The power acquisition unit is configured to acquire sample allowable powers corresponding to a plurality of sample active powers of the working machine, and obtain a sample power corresponding relationship between the plurality of sample active powers and the sample allowable powers.

[0101] The interpolation acquisition unit is configured to perform interpolation processing on the sample power corresponding relationship, and obtain the power corresponding relationship.

[0102] In some optional embodiments, the power corresponding relationship is represented by a curve, and the slope of the curve decreases as the allowable power increases.

[0103] In some optional embodiments, the power corresponding relationship is represented by a straight line, and the slope of the straight line is determined based on the maximum value and the minimum value of the allowable power.

[0104] In some optional embodiments, the parameter query module 702 includes:

[0105] The gear acquisition unit is configured to acquire the working gear of the working machine.

[0106] The relationship query unit is configured to query the power corresponding relationship based on the working gear and the current active power, and obtain the corresponding target allowable power.

[0107] In some optional embodiments, the power corresponding relationship is represented by a straight line with different slopes corresponding to the working gears.

[0108] In some optional embodiments, the power corresponding relationship is represented by a power curve, and the parameter query module 702 includes:

[0109] The power query unit is configured to query the allowable power corresponding to the current active power in the power curve.

[0110] The power determination unit is configured to determine the target allowable power based on the allowable power corresponding to the current active power.

[0111] In some optional embodiments, the power adjustment module 703 includes:

[0112] a power calculation unit configured to calculate a difference power between the current allowable power and the target allowable power.

[0113] a power adjustment unit configured to adjust the current allowable power based on the difference power to adjust the current allowable power to the target allowable power.

[0114] The power adjustment device provided by the embodiment can obtain the corresponding target allowable power based on the current active power by querying the power correspondence relationship for representing the corresponding relationship between the active power and the allowable power, and adjust the current allowable power of the working machine based on the target allowable power, so as to intervene in advance and perform allowable power control before the peak power occurs, thereby improving the working safety of the working machine.

[0115] Further function descriptions of the above-mentioned modules and units are the same as those of the above-mentioned embodiments, and will not be described here.

[0116] The power adjustment device in the embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and a memory executing one or more software or fixed programs, and / or other devices that can provide the above-mentioned functions.

[0117] Figure 8 The structure schematic diagram of the embodiment of the electronic device of the present application is shown, and the specific implementation of the electronic device is not limited by the specific embodiment of the present application.

[0118] As shown in Figure 8 The electronic device can include a processor 802, a communications interface 804, a memory 806, and a communications bus 808.

[0119] The processor 802, the communications interface 804, and the memory 806 can communicate with each other through the communications bus 808. The communications interface 804 is configured to communicate with network elements such as clients or other servers. The processor 802 is configured to execute the program 810, and specifically can execute the related steps in the above-mentioned power adjustment method embodiments.

[0120] Specifically, the program 810 can include program code including computer executable instructions.

[0121] The processor 802 can be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement one or more embodiments of the present application. The one or more processors included in the electronic device can be of the same type or different types, such as one or more CPUs and one or more ASICs.

[0122] The memory 806 is configured to store a program 810. The memory 806 can include a high-speed RAM memory and can also include a non-volatile memory, such as at least one disk memory.

[0123] The embodiments of the present application also provide a working machine, wherein the working machine is provided with a power regulation system configured to perform the operations of the power regulation method as described above.

[0124] The embodiments of the present application also provide a computer readable storage medium, wherein the method according to the embodiments of the present application can be implemented in hardware, firmware, or as computer code that can be recorded in a storage medium or downloaded over a network and stored in a remote storage medium or a non-transitory machine readable storage medium and stored in a local storage medium, so that the method described herein can be processed by such software using a general purpose computer, a special purpose processor, or programmable or dedicated hardware. The storage medium can be a disk, a compact disk, a read-only memory, a random access memory, a flash memory, a hard disk, or a solid state disk, etc. Further, the storage medium can also include a combination of the above-mentioned types of memories. It can be understood that the computer, the processor, the microprocessor controller, or the programmable hardware includes a storage component that can store or receive software or computer code, when the software or computer code is accessed and executed by the computer, the processor, or the hardware, the method shown in the above embodiments is implemented.

[0125] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes are intended to fall within the scope of the appended claims.

Claims

1. A power regulation method, characterized in that, The method includes: Obtain the current active power and operating speed of the operating machinery; Based on the current active power query power correspondence, the corresponding target allowable power is obtained. The power correspondence is used to characterize the correspondence between active power and allowable power; or based on the working level and the current active power query power correspondence, the corresponding target allowable power is obtained. The power correspondence is characterized by straight lines with different slopes corresponding to the working level. The target allowable power is used to characterize the maximum value of the current allowable power of the operating machinery. Based on the target allowable power, the current allowable power of the operating machinery is adjusted.

2. The method according to claim 1, characterized in that, The power correspondence is determined based on the following steps: Obtain the sample allowable power corresponding to multiple sample active power of the operating machinery, and obtain the sample power correspondence between multiple sample active power and sample allowable power; The power correspondence is obtained by interpolating the sample power correspondence.

3. The method according to claim 1 or 2, characterized in that, The power correspondence is represented by a curve, the slope of which decreases as the allowable power increases.

4. The method according to claim 1 or 2, characterized in that, The power correspondence is represented by a straight line, the slope of which is determined based on the maximum and minimum allowable power values.

5. The method according to claim 1, characterized in that, The power correspondence is characterized by a power curve. The step of querying the power correspondence based on the current active power to obtain the corresponding target allowable power includes: Query the allowable power corresponding to the current active power in the power curve; The target allowable power is determined based on the allowable power corresponding to the current active power.

6. The method according to claim 1, characterized in that, The adjustment of the current allowable power of the operating machinery based on the target allowable power includes: Calculate the power difference between the current allowable power and the target allowable power; The current allowable power is adjusted based on the difference power to adjust the current allowable power to the target allowable power.

7. A power regulation device, characterized in that, The device includes: The information acquisition module is used to acquire the current active power and operating gear of the operating machinery; The parameter query module is used to query the power correspondence based on the current active power to obtain the corresponding target allowable power. The power correspondence is used to characterize the correspondence between active power and allowable power. Alternatively, it can query the power correspondence based on the working level and the current active power to obtain the corresponding target allowable power. The power correspondence is characterized by straight lines with different slopes corresponding to the working level. The target allowable power is used to characterize the maximum value of the current allowable power of the operating machinery. The power adjustment module is used to adjust the current allowable power of the operating machinery based on the target allowable power.

8. A type of operating machinery, characterized in that, The operating machinery is equipped with a power regulation system, which is used to perform the power regulation method as described in any one of claims 1 to 6.

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