CN116069002B - Motor controller rotation speed balance test method and system - Google Patents
Motor controller rotation speed balance test method and system Download PDFInfo
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- CN116069002B CN116069002B CN202310284666.3A CN202310284666A CN116069002B CN 116069002 B CN116069002 B CN 116069002B CN 202310284666 A CN202310284666 A CN 202310284666A CN 116069002 B CN116069002 B CN 116069002B
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- G05B23/00—Testing or monitoring of control systems or parts thereof
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Abstract
The application provides a motor controller rotating speed balance test method and a motor controller rotating speed balance test system, and relates to the technical field of motor controller tests, wherein the motor controller rotating speed balance test method comprises the following steps: acquiring a plurality of rotating speed operation intervals and a plurality of weight coefficients of a target motor; acquiring a plurality of rotation speed variation stability parameters and a plurality of average efficiency parameters through acquisition and analysis; obtaining a plurality of rotation speed balance scores and a plurality of efficiency scores; combining the multiple rotation speed balance scores and the multiple efficiency scores, and respectively inputting the multiple rotation speed balance scores and the multiple efficiency scores into multiple motor comprehensive analysis units in a motor comprehensive analysis model to obtain multiple motor comprehensive scores; according to the multiple weight coefficients, the multiple motor comprehensive scores are weighted to obtain the total test score of the target motor, the technical problem that the motor test result accuracy is insufficient due to insufficient detail of the motor performance analysis flow in the prior art is solved, and the technical effect of improving the accuracy of the motor controller rotating speed balancing test result is achieved.
Description
Technical Field
The application relates to the technical field of motor controller testing, in particular to a motor controller rotating speed balancing testing method and system.
Background
The motor controller is an integrated circuit which controls the motor to work according to the set direction, speed, angle and response time through active work. The motor controller rotation speed balancing test is an important link for comprehensively evaluating the quality and performance of the motor.
At present, the technical problem that the accuracy of motor performance test results is insufficient due to the fact that the motor performance analysis flow is not detailed enough in the prior art.
Disclosure of Invention
The application provides a motor controller rotating speed balance test method and system, which are used for solving the technical problem that the accuracy of motor test results is insufficient due to insufficient detail of motor performance analysis flow in the prior art.
According to a first aspect of the present application, there is provided a motor controller rotation speed balance test method, including: acquiring a plurality of rotating speed operation intervals of a target motor and a plurality of weight coefficients of the target motor in the rotating speed operation intervals; testing the target motor in the multiple rotating speed running intervals, and acquiring, analyzing and obtaining multiple rotating speed change stability parameters and multiple average efficiency parameters; respectively inputting the multiple rotational speed variation stability parameters and the multiple average efficiency parameters into multiple rotational speed balance analysis units and multiple efficiency analysis units in a motor performance analysis model to obtain multiple rotational speed balance scores and multiple efficiency scores; combining the multiple rotation speed balance scores and the multiple efficiency scores, and respectively inputting the multiple rotation speed balance scores and the multiple efficiency scores into multiple motor comprehensive analysis units in a motor comprehensive analysis model to obtain multiple motor comprehensive scores; and carrying out weighted calculation on the comprehensive scores of the motors according to the weight coefficients to obtain the total test score of the target motor as a test result.
According to a second aspect of the present application, there is provided a motor controller rotational speed balance test system, comprising: the rotating speed operation interval acquisition module is used for acquiring a plurality of rotating speed operation intervals of a target motor and a plurality of weight coefficients of the target motor in the rotating speed operation intervals; the test parameter acquisition module is used for testing the target motor in the multiple rotating speed running intervals, and acquiring and analyzing multiple rotating speed change stability parameters and multiple average efficiency parameters; the motor performance analysis module is used for respectively inputting the multiple rotational speed change stability parameters and the multiple average efficiency parameters into multiple rotational speed balance analysis units and multiple efficiency analysis units in a motor performance analysis model to obtain multiple rotational speed balance scores and multiple efficiency scores; the motor comprehensive analysis module is used for combining the multiple rotational speed balance scores and the multiple efficiency scores, and respectively inputting the multiple rotational speed balance scores and the multiple efficiency scores into multiple motor comprehensive analysis units in a motor comprehensive analysis model to obtain multiple motor comprehensive scores; the test result acquisition module is used for carrying out weighted calculation on the comprehensive scores of the motors according to the weight coefficients to obtain the total test score of the target motor as a test result.
According to the motor controller rotation speed balance test method adopted by the application, a plurality of rotation speed operation intervals of a target motor and a plurality of weight coefficients of the target motor in the rotation speed operation intervals are obtained; testing the target motor in the multiple rotating speed running intervals, and acquiring, analyzing and obtaining multiple rotating speed change stability parameters and multiple average efficiency parameters; respectively inputting the multiple rotational speed variation stability parameters and the multiple average efficiency parameters into multiple rotational speed balance analysis units and multiple efficiency analysis units in a motor performance analysis model to obtain multiple rotational speed balance scores and multiple efficiency scores; combining the multiple rotation speed balance scores and the multiple efficiency scores, and respectively inputting the multiple rotation speed balance scores and the multiple efficiency scores into multiple motor comprehensive analysis units in a motor comprehensive analysis model to obtain multiple motor comprehensive scores; and carrying out weighted calculation on the comprehensive scores of the motors according to the weight coefficients to obtain the total test score of the target motor as a test result. According to the motor speed balancing and grading method, the motor is divided into a plurality of speed running intervals, the speed change stability parameters and the efficiency parameters corresponding to the speed running intervals are graded respectively, comprehensive grading is conducted according to the speed balancing grading and the efficiency grading of each speed interval, a plurality of weight coefficients corresponding to the speed running intervals are obtained according to the running time of each speed interval, the weight calculation is conducted on the comprehensive grading based on the weight coefficients, therefore, a test result is obtained, the motor performance test based on the actual running working condition of the motor is achieved, and the technical effect of improving the accuracy of the motor controller speed balancing test result is achieved.
It should be understood that the description of this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.
Drawings
For a clearer description of the technical solutions of the present application or of the prior art, the drawings used in the description of the embodiments or of the prior art will be briefly described below, it being obvious that the drawings in the description below are only exemplary and that other drawings can be obtained, without inventive effort, by a person skilled in the art from the drawings provided.
Fig. 1 is a schematic flow chart of a motor controller rotation speed balance test method according to an embodiment of the present invention;
FIG. 2 is a flow chart of obtaining a plurality of rotational speed variation stability parameters and a plurality of average efficiency parameters according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of obtaining a plurality of rotation speed balance scores and a plurality of efficiency scores according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of obtaining a plurality of motor composite scores according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a motor controller rotation speed balancing test system according to an embodiment of the present invention.
Reference numerals illustrate: the system comprises a rotating speed operation interval acquisition module 11, a test parameter acquisition module 12, a motor performance analysis module 13, a motor comprehensive analysis module 14 and a test result acquisition module 15.
Detailed Description
Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
In order to solve the technical problem that the accuracy of motor test results is insufficient due to insufficient detail of motor performance analysis flow in the prior art, the inventor of the application obtains the motor controller rotation speed balance test method and system through creative labor.
Example 1
Fig. 1 is a diagram of a method for testing rotation speed balance of a motor controller according to an embodiment of the present application, as shown in fig. 1, where the method includes:
Step S100: acquiring a plurality of rotating speed operation intervals of a target motor and a plurality of weight coefficients of the target motor in the rotating speed operation intervals;
the step S100 in this embodiment of the present application further includes:
step S110: dividing the rotating speed operation range of the target motor to obtain a plurality of rotating speed operation intervals;
step S120: acquiring a plurality of interval times and total operation time of the target motor in the operation intervals of the plurality of rotating speeds in the historical time of the target motor in a preset time range;
step S130: and calculating to obtain a plurality of running time ratios according to the plurality of interval times and the total running time, and removing the running time ratios which are zero to obtain the plurality of weight coefficients.
Specifically, the embodiment of the application provides a motor controller rotating speed balance test method, wherein the motor controller is an integrated circuit which controls a motor to work according to a set direction, speed, angle and response time through active work, and the rotating speed of the motor controller is related to the working speed, power and the like of the motor. Specifically, the target motor refers to any motor to be subjected to a rotation speed balancing test, when the motor is in operation, the rotation speed is in different ranges due to different requirements on the operation speed, the output power and the like, when the requirement on the output power of the motor is low, the operation speed of the motor is low, when the requirement on the output power of the motor is high, the rotation speed of the motor is increased, a plurality of rotation speed operation intervals of the target motor are obtained based on the rotation speed operation intervals, for example, 200-400 rpm is one rotation speed operation interval, 400-600 rpm is another rotation speed operation interval, and the like, a plurality of rotation speed operation intervals are obtained, and a plurality of weight coefficients are determined according to the operation time duty ratio of the target motor in the plurality of rotation speed operation intervals, wherein the weight coefficients represent the importance degree of a certain rotation speed operation interval in the total test of the motor.
Specifically, the rotation speed operation range of the target motor is divided, for example, according to the same interval size, so as to obtain a plurality of rotation speed operation intervals, for example, the rotation speed operation range of a certain motor is 500-1400 rpm, and 500-800 rpm, 800-1100 rpm, and 1100-1400 rpm are respectively used as one rotation speed operation interval. Further, the preset time range is a historical time period set by a worker, for example, a past week or a past month, the historical time of the target motor in the preset time range is obtained, and in the historical time of the preset time range, a plurality of interval times and total operation times of the target motor in a plurality of rotating speed operation intervals are obtained, wherein the total operation time refers to the sum of the operation times of the motor in different rotating speeds, the plurality of interval times refer to the operation times of the motor in a plurality of rotating speed operation intervals respectively, the ratio between the plurality of interval times and the total operation time is calculated respectively, a plurality of operation time ratios are obtained, and the operation time ratio of the plurality of operation time ratios possibly has zero, namely, the motor is not operated in a certain rotating speed operation interval in the historical time, so that the motor is tested according to the operation working condition of the motor, and in the latter rotating speed operation interval, the test is not needed, therefore, the operation time ratio of zero is removed, the operation time ratio is taken as the weight coefficient corresponding to the rotating speed operation interval, and the weight coefficient is determined, so that the technical effect of providing basic data for the subsequent rotating speed balance test is achieved.
Step S200: testing the target motor in the multiple rotating speed running intervals, and acquiring, analyzing and obtaining multiple rotating speed change stability parameters and multiple average efficiency parameters;
as shown in fig. 2, step S200 in the embodiment of the present application further includes:
step S210: testing the target motor in the multiple rotating speed running intervals, and collecting the rotating speed, the input power and the output power of the target motor at multiple time nodes to obtain multiple motor rotating speed sets, multiple input power sets and multiple output power sets;
step S220: calculating to obtain a plurality of motor rotation speed change rate sets according to the plurality of motor rotation speed sets and the plurality of time nodes;
step S230: calculating to obtain a plurality of motor rotation speed change rate variances as the plurality of rotation speed change stability parameters according to the plurality of motor rotation speed change rate sets;
step S240: calculating to obtain a plurality of average input powers and a plurality of average output powers according to the plurality of input powers and the plurality of output powers;
step S250: and calculating and obtaining the average efficiency parameters according to the average input powers and the average output powers.
Specifically, in a plurality of rotation speed operation intervals, the target motor is tested, that is, the target motor is controlled to perform test operation in the plurality of rotation speed operation intervals respectively, test operation results are collected simultaneously, the test operation results specifically comprise motor rotation speed change, input and output power and the like, and analysis is performed on the test operation results, so that a plurality of rotation speed change stability parameters and a plurality of average efficiency parameters are obtained.
Specifically, the process of obtaining the plurality of rotational speed variation stability parameters and the plurality of average efficiency parameters is as follows: the target motor is tested in a plurality of rotational speed operation intervals, and the test can be an operation test of the motor according to constant input power or a control operation test of the motor according to the same input power change rate.
In the test process, the rotation speed, the input power and the output power of the target motor are collected at a plurality of time nodes, for example, the data are collected once every 5 minutes as one time node, that is, one motor rotation speed, one input power and one output power are correspondingly collected at one time node, so that a plurality of motor rotation speed sets, a plurality of input power sets and a plurality of output power sets are obtained, and the plurality of motor rotation speed sets, the plurality of input power sets and the plurality of output power sets have corresponding relations. Based on a plurality of motor speed sets and a plurality of time nodes, a plurality of motor speed change rate sets are obtained through calculation, specifically, the change amount of the motor speed in unit time is calculated, for example, the motor speed of a first time node can be subtracted from the motor speed of a second time node, then the motor speed of the first time node is divided by the time difference between the second time node and the first time node, so that a motor speed change rate is obtained, and the like, a plurality of motor speed change rates can be obtained, the plurality of motor speed change rates jointly form a motor speed change rate set, and a plurality of motor speed change rates corresponding to each speed operation interval are obtained based on the motor speed change rate set, so that a plurality of motor speed change rate sets are obtained. Further, according to the multiple motor rotation speed change rate sets, multiple motor rotation speed change rate variances are obtained through calculation, the variances are used for describing the discrete degree of a group of data, the motor rotation speed change rate variances are average numbers of sum of squares of differences between each data and average numbers in any motor rotation speed change rate set, the variances are used for describing the discrete degree of the motor rotation speed change rate, and the multiple motor rotation speed change rate variances are used as multiple rotation speed change stability parameters.
Further, the motor can be tested in any rotating speed running interval to obtain a plurality of input powers and a plurality of output powers, average values of the plurality of input powers and the plurality of output powers in any rotating speed running interval are calculated, one rotating speed running interval can correspondingly obtain one average input power and one average output power, and the like, the plurality of rotating speed running intervals can obtain a plurality of average input powers and a plurality of average output powers, a plurality of average efficiency parameters are calculated and obtained according to the plurality of average input powers and the plurality of average output powers, the average efficiency parameters are expressed by the ratio of the output power to the input power, the ratio is generally between 0 and 1, and the larger the ratio is, the smaller the loss generated by the input power is indicated. By acquiring a plurality of rotation speed change stability parameters and a plurality of average efficiency parameters, the technical effects of providing data support for subsequent motor performance analysis and improving the accuracy of rotation speed balance test results are achieved.
Step S300: respectively inputting the multiple rotational speed variation stability parameters and the multiple average efficiency parameters into multiple rotational speed balance analysis units and multiple efficiency analysis units in a motor performance analysis model to obtain multiple rotational speed balance scores and multiple efficiency scores;
As shown in fig. 3, step S300 in the embodiment of the present application further includes:
step S310: constructing a first rotational speed balance analysis unit based on historical test data of the same type motor of the target motor in a first rotational speed operation interval, wherein the first rotational speed operation interval is included in the plurality of rotational speed operation intervals;
step S320: constructing a first efficiency analysis unit based on historical test data of the same type motor of the target motor in a first rotating speed operation interval;
step S330: continuously constructing a plurality of other rotating speed balance analysis units and a plurality of efficiency analysis units to obtain the motor performance analysis model;
step S340: and respectively inputting the multiple rotational speed variation stability parameters and the multiple average efficiency parameters into the multiple rotational speed balance analysis units and the multiple efficiency analysis units to obtain multiple rotational speed balance scores and multiple efficiency scores.
Step S310 in this embodiment of the present application further includes:
step S311: acquiring a historical first rotational speed change stability parameter set based on historical test data of a motor of the same type as the target motor in a first rotational speed operation interval;
step S312: performing rotational speed change stability evaluation according to the historical first rotational speed change stability parameters in the historical first rotational speed change stability parameter set to obtain a historical first rotational speed balance score set;
Step S313: performing data annotation on the historical first rotational speed variation stability parameter set and the historical first rotational speed balance score set to obtain a first construction data set;
step S314: constructing the first rotational speed balance analysis unit based on a BP neural network;
step S315: and performing supervision training and verification on the first rotational speed balance analysis unit by adopting the first construction data set to obtain the first rotational speed balance analysis unit with the accuracy meeting the target accuracy requirement.
Specifically, the motor performance analysis model is composed of a plurality of rotation speed balance analysis units and a plurality of efficiency analysis units, wherein the rotation speed balance analysis units are used for analyzing a plurality of rotation speed change stability parameters in a plurality of rotation speed running intervals, evaluating the rotation speed balance degree of a target motor according to the rotation speed change stability parameters and outputting a plurality of rotation speed balance scores; the efficiency analysis units are used for analyzing a plurality of average efficiency parameters in a plurality of rotating speed operation intervals, evaluating the efficiency of the target motor according to the average efficiency parameters and outputting a plurality of efficiency scores.
Specifically, the first rotational speed operation interval refers to any rotational speed operation interval in a plurality of rotational speed operation intervals, historical test data of the same type motor with all the same rotational speed operation intervals are collected, the historical test data comprises a historical rotational speed change stability parameter and a historical average efficiency parameter, the historical test data of the same motor with the target motor type in the first rotational speed operation interval is obtained, and the historical rotational speed change stability parameter is extracted from the historical test data, so that the first rotational speed balance analysis unit is constructed. And extracting a historical average efficiency parameter from the historical test data according to the historical test data of the motor with the same model as the target motor in the first rotating speed running interval, so as to construct a first efficiency analysis unit. And adopting the same method to continuously construct a plurality of other rotating speed balance analysis units and a plurality of efficiency analysis units, namely, a rotating speed running interval corresponds to one rotating speed balance analysis unit and one efficiency analysis unit, and the plurality of rotating speed balance analysis units and the plurality of efficiency analysis units which are constructed form a motor performance analysis model. And respectively inputting a plurality of rotation speed change stability parameters and a plurality of average efficiency parameters into a plurality of rotation speed balance analysis units and a plurality of efficiency analysis units, outputting to obtain a plurality of rotation speed balance scores and a plurality of efficiency scores, and realizing the evaluation of rotation speed change stability and power stability in different rotation speed operation intervals so as to ensure the technical effect of rotation speed balance test accuracy.
Specifically, based on historical test data of a motor of the same type as the target motor in a first rotating speed running interval, a historical first rotating speed change stability parameter set is extracted from the historical test data, rotating speed change stability evaluation is carried out according to historical first rotating speed change stability parameters in the historical first rotating speed change stability parameter set, a corresponding historical first rotating speed balance score is configured for the historical first rotating speed change stability parameters, a historical first rotating speed balance score set is obtained, the historical first rotating speed change stability parameter set and the historical first rotating speed balance score set have a corresponding relation, and data marking is carried out on the historical first rotating speed change stability parameter set and the historical first rotating speed balance score set to obtain a first construction data set. Based on the BP neural network, a first rotational speed balance analysis unit is constructed, input data of the first rotational speed balance analysis unit is a first rotational speed change stability parameter, and output data is a first rotational speed balance score. And performing supervision training and verification on the first rotational speed balance analysis unit by adopting the first construction data set to obtain the first rotational speed balance analysis unit with accuracy meeting the target accuracy requirement, so that the accuracy of data analysis is ensured, and the technical effect of accuracy of rotational speed balance test is improved.
Further, the construction process of the first rotational speed equalization analysis unit is as follows: dividing the first construction data set into a training data set and a verification data set, wherein the training data set and the verification data set both comprise a plurality of historical first rotational speed variation stability parameters and historical first rotational speed balance scores with corresponding relations, inputting any historical first rotational speed variation stability parameter in the training data set into a first rotational speed balance analysis unit, performing supervision adjustment on the output of the first rotational speed balance analysis unit through the historical first rotational speed balance scores corresponding to the training data set, and when the output data of the first rotational speed balance analysis unit is consistent with the corresponding historical first rotational speed balance scores, completing a group of data training, completing the training of all data in the training data set according to the same method, and completing the training of the first rotational speed balance analysis unit. In order to ensure the accuracy of the first rotational speed balance analysis unit, the data in the verification data set is adopted to perform accuracy test on the first rotational speed balance analysis unit, for example, the target accuracy requirement can be set to 90%, and when the test accuracy meets 90%, the accuracy of the first rotational speed balance analysis unit is proved to meet the requirement, and at this time, the first rotational speed balance analysis unit is constructed.
The method comprises the steps that the construction method which is the same as that of a first rotational speed balance analysis unit is adopted to finish the construction of a plurality of other rotational speed balance analysis units and a plurality of efficiency analysis units, the plurality of rotational speed balance analysis units and the plurality of efficiency analysis units are all in machine learning, and can continuously iterate BP neural network models, the plurality of rotational speed balance analysis units and the plurality of efficiency analysis units form a motor performance analysis model, and further, a plurality of rotational speed change stability parameters and a plurality of average efficiency parameters are respectively input into the plurality of rotational speed balance analysis units and the plurality of efficiency analysis units in the motor performance analysis model, so that a plurality of rotational speed balance scores and a plurality of efficiency scores are obtained.
Step S400: combining the multiple rotation speed balance scores and the multiple efficiency scores, and respectively inputting the multiple rotation speed balance scores and the multiple efficiency scores into multiple motor comprehensive analysis units in a motor comprehensive analysis model to obtain multiple motor comprehensive scores;
as shown in fig. 4, step S400 in the embodiment of the present application further includes:
step S410: constructing a first motor comprehensive analysis unit based on historical test data of the same type motor of the target motor in a first rotational speed operation interval;
step S420: continuously constructing a plurality of motor comprehensive analysis units corresponding to other rotating speed operation intervals;
Step S430: integrating the constructed multiple motor comprehensive analysis units to obtain the motor comprehensive analysis model;
step S440: according to the first rotational speed operation interval, combining a first rotational speed balance score and a first efficiency score, and inputting the combined scores into the first motor comprehensive analysis unit to obtain a first motor comprehensive score;
step S450: and combining the other multiple rotational speed balance scores and multiple efficiency scores according to the multiple rotational speed operation intervals, and inputting the combined scores into corresponding motor comprehensive analysis units to obtain the multiple motor comprehensive scores.
The step S410 in this embodiment of the present application further includes:
step S411: acquiring a historical first rotational speed balancing scoring set and a historical first efficiency scoring set based on historical test data of the same type motor of the target motor in a first rotational speed operation interval;
step S412: the historical first rotational speed balancing scoring set and the data in the historical first efficiency scoring set are correspondingly combined one by one, and comprehensive motor evaluation is carried out to obtain a historical first motor comprehensive scoring set;
step S413: constructing an abscissa axis and an ordinate axis in a first comprehensive analysis coordinate system in a first motor comprehensive analysis unit based on the first rotational speed balance score and the first efficiency score;
Step S414: combining the data in the historical first rotational speed balancing scoring set and the historical first efficiency scoring set in a one-to-one correspondence manner, and inputting the first comprehensive analysis coordinate system to obtain a plurality of first historical coordinate points;
step S415: and marking the plurality of first historical coordinate points by adopting a plurality of historical first motor comprehensive scores in the historical first motor comprehensive score set to obtain the first motor comprehensive analysis unit.
Step S440 in this embodiment of the present application further includes:
step S441: combining the first rotational speed balance score and the first efficiency score, and inputting the combined first rotational speed balance score and the first efficiency score into the first motor comprehensive analysis unit to obtain a first real-time coordinate point;
step S442: obtaining K first historical coordinate points nearest to the first real-time coordinate point, and obtaining K historical first motor comprehensive scores corresponding to the K first historical coordinate points, wherein K is a positive integer;
step S443: and calculating and obtaining the average value of the K historical first motor comprehensive scores as the first motor comprehensive score.
Specifically, the motor comprehensive analysis model comprises a plurality of motor comprehensive analysis units, that is, each rotating speed operation interval corresponds to one motor comprehensive analysis unit, so that the motor performance comprehensive scoring is performed pertinently according to the rotating speed equilibrium scoring and the efficiency scoring in the rotating speed operation interval under different rotating speed working conditions. And a plurality of motor comprehensive analysis units corresponding to the rotating speed operation intervals jointly form a motor comprehensive analysis model. The multiple rotational speed balance scores and the multiple efficiency scores are obtained by testing in different rotational speed operation intervals, the rotational speed balance scores and the efficiency scores in the same rotational speed operation interval are combined together, the combined data are input into motor comprehensive analysis units corresponding to the same rotational speed operation interval, so that multiple motor comprehensive scores are obtained, and the motor comprehensive scores are total scores of motor comprehensive performances of the rotational speed operation intervals in combination with the rotational speed balance scores and the efficiency scores.
Specifically, the first rotational speed operation interval refers to any rotational speed operation interval in a plurality of rotational speed operation intervals, according to historical test data of a motor of the same type as the target motor in the first rotational speed operation interval, a plurality of historical rotational speed balance scores and a plurality of historical efficiency scores in the first rotational speed operation interval are extracted from the historical test data, comprehensive evaluation is carried out on the plurality of historical rotational speed balance scores and the plurality of historical efficiency scores, corresponding historical motor comprehensive scores are configured for the plurality of historical rotational speed balance scores and the plurality of historical efficiency scores, based on the historical rotational speed balance scores and the plurality of historical efficiency scores, a first motor comprehensive analysis unit is constructed by adopting the plurality of historical rotational speed balance scores and the corresponding plurality of historical motor comprehensive scores, a plurality of motor comprehensive analysis units corresponding to other rotational speed operation intervals are continuously constructed by adopting the same method, and the constructed plurality of motor comprehensive analysis units jointly form a motor comprehensive analysis model. Further, according to the first rotational speed operation interval, the first rotational speed equilibrium score and the first efficiency score are combined and input into a first motor comprehensive analysis unit to obtain a first motor comprehensive score. And then, according to a plurality of rotating speed operation intervals, combining other rotating speed balance scores and efficiency scores, inputting the combined scores into corresponding motor comprehensive analysis units to obtain the motor comprehensive scores, simply speaking, combining the rotating speed balance scores and the efficiency scores in the same rotating speed operation interval, inputting combined data into the motor comprehensive analysis units corresponding to the same rotating speed operation interval, outputting motor comprehensive scores corresponding to the rotating speed operation intervals, and achieving the technical effects of separately testing different rotating speed operation intervals of the motor and improving the test accuracy.
Specifically, the construction process of the first motor comprehensive analysis unit is as follows: based on the historical test data of the same type motor of the target motor in the first rotational speed operation interval, a historical first rotational speed balance score set and a historical first efficiency score set are extracted, the historical first rotational speed balance score set and the data in the historical first efficiency score set are combined in a one-to-one correspondence mode, namely, one historical first rotational speed balance score and one corresponding historical first efficiency score are subjected to motor comprehensive evaluation, one corresponding historical first motor comprehensive score is configured for the historical first rotational speed balance score and the historical first efficiency score, and the motor comprehensive score is larger as the rotational speed balance score and the efficiency score are larger, so that the historical first motor comprehensive score set is obtained. Further, a first comprehensive analysis coordinate system is constructed, the first rotational speed balance score and the first efficiency score are respectively used as an abscissa axis and an ordinate axis in the first comprehensive analysis coordinate system, a coordinate point is formed by a historical first rotational speed balance score and a historical first efficiency score, data in a historical first rotational speed balance score set and data in a historical first efficiency score set are combined in a one-to-one correspondence mode, the first comprehensive analysis coordinate system is input, a plurality of first historical coordinate points can be obtained, a plurality of historical first motor comprehensive scores in a historical first motor comprehensive score set are adopted, the plurality of first historical coordinate points are marked in a one-to-one correspondence mode, and a first motor comprehensive analysis unit is obtained according to the marked plurality of first historical coordinate points.
And constructing motor comprehensive analysis units corresponding to other rotating speed operation intervals by adopting the same construction method as that of the first motor comprehensive analysis unit, namely, one rotating speed operation interval corresponds to one motor comprehensive analysis unit, and the motor comprehensive analysis units form a motor comprehensive analysis model.
Specifically, after the first motor comprehensive analysis unit is constructed, the first rotational speed balance score and the first efficiency score are combined and input into the first motor comprehensive analysis unit to obtain a first real-time coordinate point, wherein the first real-time coordinate point is the position of the first rotational speed balance score and the first efficiency score in the first comprehensive analysis coordinate system respectively serving as the horizontal and vertical coordinates, a plurality of first historical coordinate points are arranged in the first comprehensive analysis coordinate system in the first motor comprehensive analysis unit, K first historical coordinate points nearest to the first real-time coordinate point are obtained, and K historical first motor comprehensive scores corresponding to the K first historical coordinate points are obtained according to the marked historical first motor comprehensive scores, K is a positive integer, and the average value of the K historical first motor comprehensive scores is calculated and obtained to serve as the first motor comprehensive score.
The accuracy of the comprehensive score of the first motor is affected by the fact that the K value is too large or too small, that is, when the K value is small, the accuracy of the obtained comprehensive score of the first motor is low, the accuracy rises along with the increase of the K value, when the K value is larger, the accuracy decreases, a critical K value needs to be found, when the K value continues to increase or decrease, the accuracy decreases, the K value can be verified by obtaining a verification data set, the accuracy under different K values is obtained, from the fact that the smaller K value is selected, the value of the K is continuously increased, the accuracy corresponding to the verification data set is calculated, the K value with the highest test accuracy is found, further, the average value of the K historical first motor comprehensive scores is calculated and obtained according to the selected K value, and the average value is used as the comprehensive score of the first motor, so that the technical effect of guaranteeing the accuracy of the rotation speed balance test result is achieved.
Step S500: and carrying out weighted calculation on the comprehensive scores of the motors according to the weight coefficients to obtain the total test score of the target motor as a test result.
Specifically, the multiple weight coefficients represent the importance degree of any rotating speed running interval in the total test of the motor, the multiple motor comprehensive scores are weighted according to the multiple weight coefficients obtained in the step S100 to obtain the total test score of the target motor, the multiple motor comprehensive scores are correspondingly obtained as test results, the multiple motor comprehensive scores corresponding to the rotating speed running intervals are multiplied by the weight coefficients corresponding to the rotating speed running intervals and then added respectively to obtain the total test score, the total test score is taken as the test result, the total test score is displayed to technicians as reference data for motor development, maintenance, overhaul and the like by the technicians, and the rotating speed balance and the power conversion performance of the motor are rapidly known.
Based on the above analysis, in this embodiment, the motor is divided into a plurality of rotation speed operation intervals, the rotation speed variation stability parameters and the efficiency parameters corresponding to the rotation speed operation intervals are scored respectively, the comprehensive scoring is performed according to the rotation speed balance scoring and the efficiency scoring of each rotation speed interval, a plurality of weight coefficients corresponding to the rotation speed operation intervals are obtained according to the operation time of each rotation speed interval, and the weight calculation is performed on the comprehensive scoring based on the plurality of weight coefficients, so that a test result is obtained, and the technical effect of improving the accuracy of the rotation speed balance test result of the motor controller is achieved.
Example two
Based on the same inventive concept as the motor controller rotation speed balancing test method in the foregoing embodiment, as shown in fig. 5, the present application further provides a motor controller rotation speed balancing test system, where the system includes:
a rotation speed operation interval acquisition module 11, where the rotation speed operation interval acquisition module 11 is configured to acquire a plurality of rotation speed operation intervals of a target motor, and a plurality of weight coefficients of the target motor in the plurality of rotation speed operation intervals;
The test parameter acquisition module 12 is configured to test the target motor in the multiple rotation speed operation intervals, and acquire and analyze multiple rotation speed variation stability parameters and multiple average efficiency parameters;
the motor performance analysis module 13 is used for respectively inputting the multiple rotational speed variation stability parameters and the multiple average efficiency parameters into multiple rotational speed balance analysis units and multiple efficiency analysis units in a motor performance analysis model to obtain multiple rotational speed balance scores and multiple efficiency scores;
the motor comprehensive analysis module 14 is configured to combine the multiple rotation speed balance scores and the multiple efficiency scores, and input the combined scores into multiple motor comprehensive analysis units in a motor comprehensive analysis model respectively to obtain multiple motor comprehensive scores;
the test result obtaining module 15 is configured to perform weighted calculation on the comprehensive scores of the multiple motors according to the multiple weight coefficients, so as to obtain a total test score of the target motor, and the total test score is used as a test result.
Further, the system further comprises:
The rotating speed operation interval dividing module is used for dividing the rotating speed operation range of the target motor to obtain a plurality of rotating speed operation intervals;
the running time acquisition module is used for acquiring a plurality of interval times and total running time of the target motor in a plurality of rotating speed running intervals in the historical time of the target motor in a preset time range;
the weight coefficient acquisition module is used for calculating and obtaining a plurality of running time ratios according to the plurality of interval times and the total running time, and removing the running time ratios which are zero to obtain the plurality of weight coefficients.
Further, the system further comprises:
the original test data acquisition module is used for testing the target motor in the rotating speed running intervals, acquiring the rotating speed, the input power and the output power of the target motor at the time nodes, and obtaining a plurality of motor rotating speed sets, a plurality of input power sets and a plurality of output power sets;
the rotating speed change rate calculation module is used for calculating and obtaining a plurality of motor rotating speed change rate sets according to the plurality of motor rotating speed sets and the plurality of time nodes;
The rotating speed change stability parameter acquisition module is used for calculating and obtaining a plurality of motor rotating speed change rate variances according to the plurality of motor rotating speed change rate sets to serve as the plurality of rotating speed change stability parameters;
the average power calculation module is used for calculating and obtaining a plurality of average input powers and a plurality of average output powers according to the plurality of input powers and the plurality of output powers;
and the average efficiency parameter acquisition module is used for calculating and acquiring the plurality of average efficiency parameters according to the plurality of average input powers and the plurality of average output powers.
Further, the system further comprises:
the first rotational speed balancing analysis unit construction module is used for constructing a first rotational speed balancing analysis unit based on historical test data of the same type motor of the target motor in a first rotational speed operation interval, wherein the first rotational speed operation interval is included in the plurality of rotational speed operation intervals;
the first efficiency analysis unit construction module is used for constructing a first efficiency analysis unit based on historical test data of the same type motor of the target motor in a first rotating speed operation interval;
The motor performance analysis model acquisition module is used for continuously constructing a plurality of other rotating speed balance analysis units and a plurality of efficiency analysis units to acquire the motor performance analysis model;
the performance score acquisition module is used for respectively inputting the multiple rotational speed change stability parameters and the multiple average efficiency parameters into the multiple rotational speed balance analysis units and the multiple efficiency analysis units to obtain multiple rotational speed balance scores and multiple efficiency scores.
Further, the system further comprises:
the first historical data acquisition module is used for acquiring a historical first rotational speed change stability parameter set based on historical test data of the same type motor of the target motor in a first rotational speed operation interval;
the second historical data acquisition module is used for carrying out speed change stability evaluation according to the historical first speed change stability parameters in the historical first speed change stability parameter set to obtain a historical first speed change balance score set;
the data labeling module is used for carrying out data labeling on the historical first rotational speed change stability parameter set and the historical first rotational speed balance scoring set to obtain a first construction data set;
The network unit building module is used for building the first rotational speed balance analysis unit based on a BP neural network;
and the supervision and training module is used for performing supervision and training and verification on the first rotational speed balance analysis unit by adopting the first construction data set to obtain the first rotational speed balance analysis unit with the accuracy meeting the target accuracy requirement.
Further, the system further comprises:
the first motor comprehensive analysis unit construction module is used for constructing a first motor comprehensive analysis unit based on historical test data of the same type motor of the target motor in a first rotational speed operation interval;
the motor comprehensive analysis unit construction module is used for continuously constructing a plurality of motor comprehensive analysis units corresponding to a plurality of other rotating speed operation intervals;
the motor comprehensive analysis model construction module is used for integrating the constructed multiple motor comprehensive analysis units to obtain the motor comprehensive analysis model;
the first motor comprehensive score acquisition module is used for combining the first rotational speed balanced score and the first efficiency score according to the first rotational speed operation interval, and inputting the first rotational speed balanced score and the first efficiency score into the first motor comprehensive analysis unit to obtain a first motor comprehensive score;
And the motor comprehensive score acquisition modules are used for combining other multiple rotational speed balanced scores and multiple efficiency scores according to the multiple rotational speed operation intervals, inputting the combined scores into corresponding motor comprehensive analysis units and obtaining the multiple motor comprehensive scores.
Further, the system further comprises:
the third historical data acquisition module is used for acquiring a historical first rotational speed balancing scoring set and a historical first efficiency scoring set based on historical test data of the same type motor of the target motor in a first rotational speed operation interval;
the motor comprehensive evaluation module is used for correspondingly combining the data in the historical first rotational speed balancing scoring set and the historical first efficiency scoring set one by one and carrying out motor comprehensive evaluation to obtain a historical first motor comprehensive scoring set;
the first comprehensive analysis coordinate system construction module is used for constructing an abscissa axis and an ordinate axis in a first comprehensive analysis coordinate system in the first motor comprehensive analysis unit based on the first rotational speed balance score and the first efficiency score;
The first historical coordinate point acquisition module is used for correspondingly combining the data in the historical first rotational speed balancing scoring set and the historical first efficiency scoring set one by one, inputting the first comprehensive analysis coordinate system and acquiring a plurality of first historical coordinate points;
and the coordinate point marking module is used for marking the plurality of first historical coordinate points by adopting a plurality of historical first motor comprehensive scores in the historical first motor comprehensive score set to obtain the first motor comprehensive analysis unit.
Further, the system further comprises:
the first real-time coordinate point acquisition module is used for combining the first rotational speed balance score and the first efficiency score, inputting the first rotational speed balance score and the first efficiency score into the first motor comprehensive analysis unit and obtaining a first real-time coordinate point;
the nearest coordinate point acquisition module is used for acquiring K nearest first historical coordinate points of the first real-time coordinate point, and obtaining K historical first motor comprehensive scores corresponding to the K first historical coordinate points, wherein K is a positive integer;
And the average value calculation module is used for calculating and obtaining the average value of the K historical first motor comprehensive scores as the first motor comprehensive score.
The specific example of the motor controller rotation speed balancing test method in the first embodiment is also applicable to the motor controller rotation speed balancing test system in the present embodiment, and those skilled in the art will clearly know the motor controller rotation speed balancing test system in the present embodiment through the foregoing detailed description of the motor controller rotation speed balancing test method, so the details thereof will not be described herein for brevity. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in this application may be performed in parallel, may be performed sequentially, may be performed in a different order,
the present disclosure is not limited herein so long as the desired results of the presently disclosed technology are achieved.
The above embodiments do not limit the scope of the application. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application are intended to be included within the scope of the present application.
Claims (5)
1. A motor controller rotational speed balance test method, the method comprising:
acquiring a plurality of rotating speed operation intervals of a target motor and a plurality of weight coefficients of the target motor in the rotating speed operation intervals;
testing the target motor in the multiple rotating speed running intervals, and acquiring, analyzing and obtaining multiple rotating speed change stability parameters and multiple average efficiency parameters;
respectively inputting the multiple rotational speed variation stability parameters and the multiple average efficiency parameters into multiple rotational speed balance analysis units and multiple efficiency analysis units in a motor performance analysis model to obtain multiple rotational speed balance scores and multiple efficiency scores;
combining the multiple rotation speed balance scores and the multiple efficiency scores, and respectively inputting the multiple rotation speed balance scores and the multiple efficiency scores into multiple motor comprehensive analysis units in a motor comprehensive analysis model to obtain multiple motor comprehensive scores;
Weighting calculation is carried out on the comprehensive scores of the motors according to the weight coefficients, and the total test score of the target motor is obtained and is used as a test result;
acquiring a plurality of rotating speed operation intervals of a target motor and a plurality of weight coefficients of the target motor in the rotating speed operation intervals, wherein the rotating speed operation intervals comprise the following steps:
dividing the rotating speed operation range of the target motor to obtain a plurality of rotating speed operation intervals;
acquiring a plurality of interval times and total operation time of the target motor in the operation intervals of the plurality of rotating speeds in the historical time of the target motor in a preset time range;
calculating to obtain a plurality of running time ratios according to the plurality of interval times and the total running time, and removing the running time ratios which are zero to obtain a plurality of weight coefficients;
testing the target motor in the multiple rotating speed operation intervals, and acquiring multiple rotating speed change stability parameters and multiple average efficiency parameters through acquisition and analysis, wherein the method comprises the following steps:
testing the target motor in the multiple rotating speed running intervals, and collecting the rotating speed, the input power and the output power of the target motor at multiple time nodes to obtain multiple motor rotating speed sets, multiple input power sets and multiple output power sets;
Calculating to obtain a plurality of motor rotation speed change rate sets according to the plurality of motor rotation speed sets and the plurality of time nodes;
calculating to obtain a plurality of motor rotation speed change rate variances as the plurality of rotation speed change stability parameters according to the plurality of motor rotation speed change rate sets;
calculating to obtain a plurality of average input powers and a plurality of average output powers according to the plurality of input powers and the plurality of output powers;
calculating to obtain the average efficiency parameters according to the average input powers and the average output powers;
inputting the rotation speed variation stability parameters and the average efficiency parameters into a plurality of rotation speed balance analysis units and a plurality of efficiency analysis units in a motor performance analysis model respectively to obtain a plurality of rotation speed balance scores and a plurality of efficiency scores, wherein the method comprises the following steps:
constructing a first rotational speed balance analysis unit based on historical test data of the same type motor of the target motor in a first rotational speed operation interval, wherein the first rotational speed operation interval is included in the plurality of rotational speed operation intervals;
constructing a first efficiency analysis unit based on historical test data of the same type motor of the target motor in a first rotating speed operation interval;
Continuously constructing a plurality of other rotating speed balance analysis units and a plurality of efficiency analysis units to obtain the motor performance analysis model;
respectively inputting the multiple rotational speed variation stability parameters and multiple average efficiency parameters into the multiple rotational speed balance analysis units and multiple efficiency analysis units to obtain multiple rotational speed balance scores and multiple efficiency scores;
combining the rotation speed balance scores and the efficiency scores, and respectively inputting the combined scores into a plurality of motor comprehensive analysis units in a motor comprehensive analysis model, wherein the motor comprehensive analysis unit comprises:
constructing a first motor comprehensive analysis unit based on historical test data of the same type motor of the target motor in a first rotational speed operation interval;
continuously constructing a plurality of motor comprehensive analysis units corresponding to other rotating speed operation intervals;
integrating the constructed multiple motor comprehensive analysis units to obtain the motor comprehensive analysis model;
according to the first rotational speed operation interval, combining a first rotational speed balance score and a first efficiency score, and inputting the combined scores into the first motor comprehensive analysis unit to obtain a first motor comprehensive score;
and combining the other multiple rotational speed balance scores and multiple efficiency scores according to the multiple rotational speed operation intervals, and inputting the combined scores into corresponding motor comprehensive analysis units to obtain the multiple motor comprehensive scores.
2. The method according to claim 1, wherein constructing a first rotational speed balance analysis unit based on historical test data of a motor of the same type as the target motor in a first rotational speed operation section includes:
acquiring a historical first rotational speed change stability parameter set based on historical test data of a motor of the same type as the target motor in a first rotational speed operation interval;
performing rotational speed change stability evaluation according to the historical first rotational speed change stability parameters in the historical first rotational speed change stability parameter set to obtain a historical first rotational speed balance score set;
performing data annotation on the historical first rotational speed variation stability parameter set and the historical first rotational speed balance score set to obtain a first construction data set;
constructing the first rotational speed balance analysis unit based on a BP neural network;
and performing supervision training and verification on the first rotational speed balance analysis unit by adopting the first construction data set to obtain the first rotational speed balance analysis unit with the accuracy meeting the target accuracy requirement.
3. The method of claim 1, wherein constructing a first motor integrated analysis unit based on historical test data of a motor of a same type as the target motor in a first rotational speed operation interval comprises:
Acquiring a historical first rotational speed balancing scoring set and a historical first efficiency scoring set based on historical test data of the same type motor of the target motor in a first rotational speed operation interval;
the historical first rotational speed balancing scoring set and the data in the historical first efficiency scoring set are correspondingly combined one by one, and comprehensive motor evaluation is carried out to obtain a historical first motor comprehensive scoring set;
constructing an abscissa axis and an ordinate axis in a first comprehensive analysis coordinate system in a first motor comprehensive analysis unit based on the first rotational speed balance score and the first efficiency score;
combining the data in the historical first rotational speed balancing scoring set and the historical first efficiency scoring set in a one-to-one correspondence manner, and inputting the first comprehensive analysis coordinate system to obtain a plurality of first historical coordinate points;
and marking the plurality of first historical coordinate points by adopting a plurality of historical first motor comprehensive scores in the historical first motor comprehensive score set to obtain the first motor comprehensive analysis unit.
4. A method according to claim 3, wherein combining the first rotational speed balance score and the first efficiency score according to the first rotational speed operation interval, inputting into the first motor synthesis analysis unit, obtaining a first motor synthesis score, comprises:
Combining the first rotational speed balance score and the first efficiency score, and inputting the combined first rotational speed balance score and the first efficiency score into the first motor comprehensive analysis unit to obtain a first real-time coordinate point;
obtaining K first historical coordinate points nearest to the first real-time coordinate point, and obtaining K historical first motor comprehensive scores corresponding to the K first historical coordinate points, wherein K is a positive integer;
and calculating and obtaining the average value of the K historical first motor comprehensive scores as the first motor comprehensive score.
5. A motor controller rotational speed balance test system for performing the method of any one of claims 1 to 4, comprising:
the rotating speed operation interval acquisition module is used for acquiring a plurality of rotating speed operation intervals of a target motor and a plurality of weight coefficients of the target motor in the rotating speed operation intervals;
the test parameter acquisition module is used for testing the target motor in the multiple rotating speed running intervals, and acquiring and analyzing multiple rotating speed change stability parameters and multiple average efficiency parameters;
the motor performance analysis module is used for respectively inputting the multiple rotational speed change stability parameters and the multiple average efficiency parameters into multiple rotational speed balance analysis units and multiple efficiency analysis units in a motor performance analysis model to obtain multiple rotational speed balance scores and multiple efficiency scores;
The motor comprehensive analysis module is used for combining the multiple rotational speed balance scores and the multiple efficiency scores, and respectively inputting the multiple rotational speed balance scores and the multiple efficiency scores into multiple motor comprehensive analysis units in a motor comprehensive analysis model to obtain multiple motor comprehensive scores;
the test result acquisition module is used for carrying out weighted calculation on the comprehensive scores of the motors according to the weight coefficients to obtain the total test score of the target motor as a test result.
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