CN108667351B - Motor control method and device - Google Patents
Motor control method and device Download PDFInfo
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- CN108667351B CN108667351B CN201810611682.8A CN201810611682A CN108667351B CN 108667351 B CN108667351 B CN 108667351B CN 201810611682 A CN201810611682 A CN 201810611682A CN 108667351 B CN108667351 B CN 108667351B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/02—Details of starting control
- H02P1/04—Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/02—Details of stopping control
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Abstract
Disclosed herein are a motor control method and apparatus, including: acquiring the nth starting and stopping parameters and the (n-1) th starting and stopping parameters of the motor; determining the n + 1-th starting and stopping parameter of the motor according to the nth starting and stopping parameter and the n-1-th starting and stopping parameter; configuring the n + 1-time starting and stopping parameter as a starting and stopping parameter of the motor so as to control the n + 1-time starting and/or stopping of the motor by using the n + 1-time starting and stopping parameter; wherein n is an integer of not less than 1. This application can be at the start-stop parameter of electrical equipment operation in-process dynamic adjustment motor, ensures the start-stop parameter adaptation operation in-process electrical equipment's of motor change, not only can realize electrical equipment's accurate control, and the high efficiency of saving time moreover.
Description
Technical Field
the invention relates to the technical field of electricity, in particular to a motor control method and device.
Background
at present, the setting of the parameters of the electrical equipment is a basic factor for controlling and protecting all electrical equipment, and the parameters of the electrical equipment are changed along with the increase of the running time of the electrical equipment, so that a constant parameter setting scheme or a scheme for manually changing the parameter setting scheme is difficult to accurately control and protect the electrical equipment.
Disclosure of Invention
the present application is directed to solving at least one of the above problems.
The application provides one kind, can be at least at the start-up stop parameter of electrical equipment operation in-process dynamic adjustment motor to realize electrical equipment's accurate control.
The present application provides the following technical solutions.
According to an aspect of the present invention, there is disclosed a motor control method including: acquiring the nth starting and stopping parameters and the (n-1) th starting and stopping parameters of the motor; determining the n + 1-th starting and stopping parameter of the motor according to the nth starting and stopping parameter and the n-1-th starting and stopping parameter; configuring the n + 1-time start-stop parameter as a start-stop parameter of the motor, so as to control the n + 1-time start and/or stop of the motor by using the n + 1-time start-stop parameter; wherein n is an integer of not less than 1.
Further, the start-stop parameter includes at least one of: starting time, a heating time constant after starting and switch tripping time; determining the n + 1-th starting and stopping parameter of the motor according to the nth starting and stopping parameter and the n-1-th starting and stopping parameter, wherein the n + 1-th starting and stopping parameter at least comprises one of the following parameters: determining the (n +1) th starting time of the motor according to the (n +1) th starting time and the (n-1) th starting time; determining a heating time constant of the motor after n +1 starting according to the heating time constant after the nth starting, the nth starting time and the (n-1) starting time; and determining the (n +1) th trip time of the motor according to the (n-1) th trip time and the nth trip time.
Further, the method further comprises: constructing a calculation model for determining start-stop parameters; the determining the (n +1) th start-stop parameter according to the (n) th start-stop parameter and the (n-1) th start-stop parameter includes: and calling the calculation model to process the nth starting and stopping parameter and the (n-1) th starting and stopping parameter to obtain the (n +1) th starting and stopping parameter of the motor.
Further, the determining the n +1 starting time of the motor according to the nth starting time and the n-1 starting time comprises: the start-up time is determined by the functional relationship: t is tqd(n+1)＝tqd(n)+(tqd(n)-tqd(n-1)) E; wherein, tqd(n+1)Is the n +1 starting time, tqd(n)for the nth time of start, tqd(n-1)The n-1 starting time, e is a natural constant of 2.718.
Further, the determining the heating time constant of the motor after the n +1 th start according to the heating time constant after the nth start, the nth start time and the n-1 th start time includes: the heating time constant is determined by the following functional relationship: t is tfr(n+1)＝tfr(n)·tqd(n)/tqd(n-1)(ii) a Wherein, tfr(n+1)is the heating time constant t after the n +1 th start of the motorfr(n)Is the heating time constant t after the n-th start of the motorqd(n)For the nth starting time, t, of the motorqd(n-1)the (n-1) th starting time of the motor.
Furthermore, the electricity is determined according to the n-1 trip time and the n trip timean n +1 trip time of the machine, comprising: the trip time is determined by the functional relationship: t is tk(n+1)＝tk(n)+(tk(n)-tk(n-1)) (ii) a Wherein, tk(n+1)trip time of the switch n +1 th time, tk(n)for the nth trip time of the switch, tk(n-1)Is the trip time of the switch n-1.
according to another aspect of the present invention, there is disclosed a motor control device including: the acquisition module is used for acquiring the nth starting and stopping parameters and the (n-1) th starting and stopping parameters of the motor; the determining module is used for determining the (n +1) th starting and stopping parameter of the motor according to the nth starting and stopping parameter and the (n-1) th starting and stopping parameter; the setting module is used for configuring the (n +1) th starting and stopping parameter as the starting and stopping parameter of the motor so as to control the (n +1) th starting and stopping of the motor by using the (n +1) th starting and stopping parameter; wherein n is an integer of not less than 1.
Preferably, the apparatus further comprises: the construction module is used for constructing a calculation model for determining the starting and stopping parameters; the determining module is specifically configured to invoke the calculation model to process the nth start-stop parameter and the (n-1) th start-stop parameter, so as to obtain an (n +1) th start-stop parameter of the motor.
Preferably, the motor control device further includes: a memory for storing a computer program which, when executed by the processor, implements a motor control method as claimed in any one of claims 1 to 6, and a processor.
preferably, a computer-readable medium stores a computer program executed by a processor for implementing one of the above-described motor control methods.
the technical effects of the application at least can include:
The embodiment of the invention determines the starting and stopping parameters of the motor at this time by using the starting and stopping parameters of the motor at the first two times, can dynamically adjust the starting and stopping parameters of the motor in the running process of the electrical equipment, ensures that the starting and stopping parameters of the motor adapt to the change of the electrical equipment in the running process, can realize the accurate control of the electrical equipment, and is time-saving and efficient.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic flow chart of a motor control method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an exemplary motor control apparatus according to an embodiment of the present invention;
FIG. 3 is an exemplary block diagram of a determination module in the motor control apparatus of FIG. 2;
FIG. 4 is an exemplary block diagram of another motor control apparatus according to an embodiment of the present invention;
FIG. 5 is a block diagram of an exemplary application scenario according to an embodiment of the present invention;
Fig. 6 is a schematic diagram of an architecture of another exemplary application scenario according to an embodiment of the present invention.
Detailed Description
exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the related art, the most important motor control is starting and stopping, and starting and stopping parameters such as starting time, heating time constant, tripping time and the like of the motor are key parameters for controlling the starting and stopping of the motor. However, in the operation process of the electrical equipment, the start-stop parameters of the motor often adopt the unchanged parameter settings or the settings of the parameters which can only be changed manually, which not only can not accurately control the electrical equipment, but also is time-consuming, labor-consuming and inefficient. In view of this problem, the embodiments of the present invention provide the following technical solutions. The following technical solutions of the embodiments of the present invention can be implemented by any device capable of implementing corresponding functions, and the device may be a controller, a single chip microcomputer, or the like connected to a relay or a Motor Control Center (MCC), or may also be a computer, a server, or other similar devices connected to a relay or a Motor Control Center (MCC).
An embodiment of the present invention provides a motor control method, as shown in fig. 1, which may include:
101, acquiring an nth starting and stopping parameter and an n-1 st starting and stopping parameter of a motor;
102, determining an n + 1-time starting and stopping parameter of the motor according to the nth starting and stopping parameter and the n-1-time starting and stopping parameter;
103, configuring the n + 1-time starting and stopping parameter as a starting and stopping parameter of the motor, so as to control the n + 1-time starting and/or stopping of the motor by using the n + 1-time starting and stopping parameter;
Wherein n is an integer of not less than 1.
the embodiment of the invention determines the starting and stopping parameters of the motor at this time by using the starting and stopping parameters of the motor at the first two times, can dynamically adjust the starting and stopping parameters of the motor in the running process of the electrical equipment, ensures that the starting and stopping parameters of the motor adapt to the change of the electrical equipment in the running process, can realize the accurate control of the electrical equipment, and is time-saving and efficient.
In this embodiment of the present invention, the start-stop parameter may include one or more of the following: starting time, heating time constant after starting and switch tripping time. The process of determining the (n +1) th start-stop parameter in step 102 may include one or more of the following: 1) determining the (n +1) th starting time of the motor according to the (n +1) th starting time and the (n-1) th starting time; 2) determining a heating time constant of the motor after the n +1 th starting according to the heating time constant after the nth starting, the nth starting time and the n-1 th starting time; 3) and determining the (n +1) th trip time of the motor according to the (n-1) th trip time and the nth trip time.
in an implementation manner of the embodiment of the present invention, the method may further include: a computational model for determining start-stop parameters is constructed. The process of determining the (n +1) th start-stop parameter in step 102 may be implemented as follows: and calling the calculation model to process the nth starting and stopping parameter and the (n-1) th starting and stopping parameter to obtain the (n +1) th starting and stopping parameter. In practical application, the process of constructing the calculation model can be realized by a computer automatic programming technology, a neural network and the like.
in one example, a first calculation model for determining the starting time, a second calculation module for determining the heating time constant, and a third calculation module for determining the trip time may be respectively constructed, the first calculation model may be invoked to process the nth starting time and the (n-1) th starting time to obtain the (n +1) th starting time of the motor, the second calculation model may be invoked to process the heating time constant after the nth starting, the nth starting time, and the (n-1) th starting time to obtain the (n +1) th heating time constant after the starting, and the third calculation model may be invoked to process the (n-1) th trip time and the nth trip time to obtain the (n +1) th trip time.
in another example, a calculation model may be constructed that may be used to determine one or more of a start time, a heat generation time constant, and a trip time, and when the calculation model is invoked, the output result is a start time n +1 if the input parameters are an n-th start time and an n-1-th start time, the output result is a heat generation time constant after an n + 1-th start if the input parameters are a heat generation time constant after an n-th start, an n-th start time, and an n-1-th start time, the output result is a trip time n +1 if the input parameters are an n-1-th trip time and an n-th trip time, and the output result includes a start time n +1 if the input parameters include an n-th start time, an n-1-th start time, a heat generation time constant after an n-th start, an n-1-th trip time, and an n-th trip time Time, heating time constant after n +1 starting, and n +1 trip time.
In an implementation scheme of the embodiment of the present invention, the start time may be determined by the following functional relationship: t is tqd(n+1)＝tqd(n)+(tqd(n)-tqd(n-1)) E; wherein, tqd(n+1)Is the (n +1) th starting time of the motor, tqd(n)For the nth time of start, tqd(n-1)The n-1 starting time, e is a natural constant of 2.718. Here, during the n +1 th start of the motor, tqd(n+1)Within a limited time limit, the current for starting the motor is increased from 0 to I-KqdIefinally, the current of the motor reaches I ═ Ie，KqdDenotes the starting times of the motor, IeIndicating the rated current of the motor. In practical application, the starting multiples of different types of motors are different. In practical applications, the calculation model (e.g., the first calculation model) may be constructed based on the functional relationship, and the start time of the motor may be obtained through processing of the calculation model.
In an implementation scheme of the embodiment of the present invention, the heating time constant may be determined by the following functional relationship: t is tfr(n+1)＝tfr(n)·tqd(n)/tqd(n-1)(ii) a Wherein, tfr(n+1)Is the heating time constant t after the n +1 th start of the motorfr(n)Is the heating time constant t after the nth start of the motorqd(n)For the nth starting time of the motor, tqd(n-1)the (n-1) th starting time of the motor is shown. In practical applications, the calculation model (for example, the second calculation model) may be constructed based on the functional relationship, and the start time of the motor may be obtained through processing of the calculation model.
In an implementation scheme of the embodiment of the invention, the trip time can be determined through the following functional relationship: t is tk(n+1)＝tk(n)+(tk(n)-tk(n-1)) (ii) a Wherein, tk(n+1)Trip time of the switch n +1 th time, tk(n)For the nth trip time of the switch, tk(n-1)is the trip time of the switch n-1. In practical application, the functional relation can be constructed based onThe above calculation model (for example, the above second calculation model) further obtains the trip time of the motor through the processing of the calculation model. It should be noted that the above functional relationships are merely examples. In practical application, a calculation model can be constructed based on the three functional relations, and one or more items of the starting time, the heating time constant and the tripping time of the motor can be obtained through the processing of the calculation model.
In other implementation schemes, a weight coefficient can be added to one or more variables (namely one or more of the nth starting time, the nth-1 starting time, the heating time constant after the nth starting, the nth-1 trip time and the nth trip time) on the basis of the functional relationship, and the influence of the corresponding variables in the functional relationship on the calculation result (namely the nth +1 starting time, the nth +1 heating time constant after the nth +1 starting and the nth +1 trip time) can be adjusted through the weight coefficient. The weighting factor can be set according to actual needs, and can be set as a fixed value, a variable value, a dynamic adjustment, or a static configuration (for example, manually set or updated).
for example, in determining the start-up time, the following functional relationship may also be used: t is tqd(n+1)＝a1tqd(n)+(a1tqd(n)-a2tqd(n-1)) A is a1、a2Are each tqd(n)、tqd(n-1)By resetting a1、a2can adjust tqd(n)、tqd(n-1)For tqd(n+1)The influence of (c). Similarly, corresponding weight coefficients can be added in the mode when the heating time constant and the tripping time are determined, so that the t is adjusted by adjusting the value of each weight coefficientfr(n)、tqd(n)、tqd(n-1)For tfr(n+1)and/or adjusting tk(n)、tk(n-1)For tk(n+1)The influence of (c).
For the case that a plurality of motors need to be controlled, the method may further include: and associating the weight coefficients required to be used by the calculation model with the equipment parameters of the motor, and establishing a corresponding mapping relation table, wherein the mapping relation table comprises values of different equipment parameters corresponding to the weight coefficients. Under the condition, the equipment parameters of the motor can be acquired when the nth starting and stopping parameters and the (n-1) th starting and stopping parameters are acquired. At this time, the process of determining the (n +1) th start-stop parameter in step 102 may be implemented as follows: and reading a corresponding weight coefficient from a pre-established mapping relation table according to the equipment parameters, and calling the calculation model to process the weight coefficient, the nth starting and stopping parameter and the (n-1) th starting and stopping parameter to obtain the (n +1) th starting and stopping parameter of the motor.
In one implementation, for example, when a plurality of motors of the same type need to be controlled, the weight coefficients of the calculation model may be associated with motor identifiers (for example, device numbers of the motors), and a corresponding mapping table is established, where the mapping table includes values of different motor identifiers corresponding to each weight coefficient, and the correspondence may be one-to-one, one-to-many, many-to-one, and the like. In another implementation, for example, when a plurality of motors of different types need to be controlled, the weight coefficients of the calculation model may be associated with the motor models to establish a corresponding mapping table, where the mapping table includes values of the weight coefficients corresponding to the different motor models, and the correspondence may be one-to-one, one-to-many, many-to-one, and the like.
In practical applications, different mapping relationship tables may be established corresponding to the first calculation model, the second calculation model, and the third calculation model, or a corresponding relationship or an association relationship between the weight coefficient of the first calculation model, the weight coefficient of the second calculation model, the weight coefficient of the third calculation model, and the device parameter of the motor may be defined in the same mapping relationship table.
It should be noted that when the number of times n of starting is 1, n-1 is 0, and at this time, the n-1 st start-stop parameter may be a preset fixed value, and a specific value of the fixed value may be preset according to actual needs, may be an empirical value, or may be another value that satisfies a calculation rule of a calculation model. For different motors, the fixed value can be set to different values. In a specific application, the fixed value may be included in the first start/stop parameter of the motor (for example, set by an administrator before the motor is first started, or pre-written in a configuration table of the motor control apparatus as a default value), or may be set as a weight coefficient of the calculation model in the form of a mapping table. That is, a mapping relation table including values of different device parameters (for example, a motor model, a device number of a motor, and the like) corresponding to the fixed value is configured in advance, when the 2 nd start-stop parameter is calculated, the value of the n-1 st start-stop parameter corresponding to the currently acquired device parameter in the mapping relation table can be read, and the 2 nd start-stop parameter is determined by using the value.
In the embodiment of the invention, the starting and stopping parameters when the motor is started for the first time can adopt default configuration, and parameters input by an administrator can be acquired in real time by providing a user interface. Specifically, before the motor is started for the first time or after the motor is connected to the motor control device, motor parameters are set, and the motor parameters may include, but are not limited to, device parameters of the motor (such as a motor model, a motor identifier, and other motor information), a first start stop parameter, an operation parameter, a malfunction alarm parameter, and the like. In one implementation, a user interface for setting motor parameters may be displayed to an administrator, and the motor parameters input by the administrator on the user interface may be received and set. In another implementation manner, various motor parameters may be written into a configuration table of the motor control device in advance, and when the motor control device is connected with the motor, the motor parameters in the configuration table are read to perform parameter setting of the corresponding motor. In addition, other methods may be adopted, and the specific configuration method of the start-stop parameter when the motor is started for the first time is not limited herein.
In the embodiment of the present invention, the manner of acquiring the nth start-stop parameter and the (n-1) th start-stop parameter in step 101 may be various. In one implementation, when the motor control device is an independent device externally connected with the MCC, a process of collecting an nth start/stop parameter and an n-1 st start/stop parameter may include: and receiving and storing the nth starting and stopping parameter and the (n-1) th starting and stopping parameter from the MCC in a wired connection or wireless communication mode. In another implementation manner, when the motor control device is built in the MCC, the start/stop parameter of the motor may be automatically stored in a memory (e.g., a memory) of the MCC when the motor is started each time (here, the start/stop parameter at the n-2 th start and the start/stop parameter at the previous start may also be automatically cleared after the nth start), and the process of collecting the nth start/stop parameter and the n-1 st start/stop parameter may include: the nth start-stop parameter and the (n-1) th start-stop parameter are read from the memory. In addition, other manners may be adopted, and the specific manner for acquiring the start-stop parameter is not limited herein. Here, while acquiring the nth start-stop parameter and the (n-1) th start-stop parameter, the device parameters of the motor may also be acquired together for use in determining the (n +1) th start-stop parameter.
in this embodiment of the present invention, the implementation manner of configuring the n +1 th start-stop parameter as the start-stop parameter of the motor in step 103 may be various. In one implementation manner, when the motor control device is an independent device externally connected to an MCC, a process of configuring the n +1 th start-stop parameter as a start-stop parameter of the motor may include: and sending the (n +1) th starting and stopping parameter to an MCC (Motor control center) in a wired connection or wireless communication mode, storing the (n +1) th starting and stopping parameter by the MCC, and loading the (n +1) th starting and stopping parameter before the (n +1) th starting of the motor. In another implementation manner, when the motor control device is built in the MCC, the process of configuring the (n +1) th start-stop parameter as the start-stop parameter of the motor may include: after the n +1 th start-stop parameter is determined, the parameter is stored in a memory (for example, a memory) of the MCC, and the n +1 th start-stop parameter is loaded before the n +1 th start of the motor. Besides, other ways can be adopted, and the specific way of configuring the n +1 th start-stop parameter as the start-stop parameter of the motor is not limited herein.
As shown in fig. 2, an embodiment of the present invention further provides a motor control apparatus 20, which may include:
The acquisition module 21 is used for acquiring the nth starting and stopping parameters and the (n-1) th starting and stopping parameters of the motor;
The determining module 22 is configured to determine an n +1 th start-stop parameter of the motor according to the nth start-stop parameter and the n-1 th start-stop parameter;
The setting module 23 is configured to configure the (n +1) th start-stop parameter as a start-stop parameter of the motor, so as to control the (n +1) th start-stop and/or stop of the motor by using the (n +1) th start-stop parameter;
Wherein n is an integer of not less than 1.
In one implementation, the motor control device 20 may further include: a construction module 24 for constructing a calculation model for determining start-stop parameters; the determining module 22 is specifically configured to invoke the calculation model to process the nth start-stop parameter and the (n-1) th start-stop parameter, so as to obtain the (n +1) th start-stop parameter.
In one implementation, as shown in fig. 3, the determining module 22 may include one or more of the following: a start time module 221, a heating time constant module 222, and a trip time module 223; the starting time module 221 is specifically configured to determine an n +1 th starting time of the motor according to the nth starting time and the (n-1) th starting time; the heating time constant module 222 is specifically configured to determine a heating time constant after the n +1 th start of the motor according to the heating time constant after the nth start, the nth start time, and the (n-1) th start time; the trip time module 223 is specifically operable to determine the (n +1) th trip time of the motor based on the (n-1) th trip time and the nth trip time.
in one example, the starting time module 221 may be specifically configured to determine the starting time according to the following functional relationship: t is tqd(n+1)＝tqd(n)+(tqd(n)-tqd(n-1)) E; wherein, tqd(n+1)For the (n +1) th start-up time, t, of the motorqd(n)For the nth starting time of the motor, tqd(n-1)The (n-1) th starting time of the motor is shown, and e is a natural constant of 2.718.
In one example, hairThe thermal time constant module 222 is specifically operable to determine the thermal time constant by the following functional relationship: t is tfr(n+1)＝tfr(n)·tqd(n)/tqd(n-1)(ii) a Wherein, tfr(n+1)Is the heating time constant t after the n +1 th start of the motorfr(n)Is the heating time constant t after the nth start of the motorqd(n)For the nth starting time of the motor, tqd(n-1)The (n-1) th starting time of the motor.
In one example, the trip time module 223 is specifically operable to determine the trip time as a function of: t is tk(n+1)＝tk(n)+(tk(n)-tk(n-1)) (ii) a Wherein, tk(n+1)Trip time of the switch n +1 th time, tk(n)For the nth trip time of the switch, tk(n-1)is the trip time of the switch n-1.
In an implementation scheme of the embodiment of the present invention, the acquisition module 21 and the setting module 23 of the motor control device 20 may be implemented by a transceiver, a communication circuit, and the like. In another implementation scheme, the acquisition module 21 of the motor control apparatus may be a write module, and the setting module 23 may be a read module.
The details of the motor control device 20 according to the embodiment of the present invention may refer to the above method section.
As shown in fig. 4, another motor control apparatus according to an embodiment of the present invention may include a memory 41 and a processor 42. Wherein the memory 41 is used for storing a computer program, which when executed by the processor implements the motor control method as described above.
In one implementation, the motor control device 40 may further include: a communication circuit 43 and a bus 44. In one implementation, the processor 42 may be configured to read the computer program to control the communication circuit 43 to receive the nth start-stop parameter and the (n-1) th start-stop parameter from the MCC, and to transmit the (n +1) th start-stop parameter to the MCC, so that the MCC controls the (n +1) th start and/or stop of the motor by using the (n +1) th start-stop parameter.
The details of the motor control device 40 according to the embodiment of the present invention may refer to the above method section.
in addition, an embodiment of the present invention further provides a computer readable medium, which stores a computer program, and the computer program is executed by a processor to implement the above-mentioned motor control method.
Embodiments of the present invention may be applicable to any type of electrical device. As shown in fig. 5 and fig. 6, which are exemplary application scenarios of the embodiments of the present invention, in the example shown in fig. 5, the motor control device is implemented by a computer, and is connected to an MCC, the MCC is connected to m motors (m is an integer not less than 2), the computer obtains an nth start-stop parameter and an n-1 st start-stop parameter of the motor from the MCC, thereby obtaining an n +1 th start-stop parameter of the motor and sending the n +1 th start-stop parameter to the MCC, and the MCC can control an n +1 th start-stop of the m motors by using the n +1 th start-stop parameter. In the example shown in fig. 6, the motor control device is implemented by a controller of an MCC, the MCC is connected to k motors (k is an integer not less than 2), and the controller of the MCC can load the n + 1-th start-stop parameter of the motor and accordingly control the n + 1-th start-stop of the k motors through the relay drive and control circuit. Here, fig. 5 and fig. 6 are only examples, and in practical applications, the embodiment of the present invention may also be applied to other scenarios, which is not limited herein.
Those of skill in the art will further appreciate that the various illustrative logical blocks, units, and steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate the interchangeability of hardware and software, various illustrative components, elements, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present embodiments.
the various illustrative logical blocks, or elements, described in connection with the embodiments disclosed herein may be implemented or performed with a general purpose processor, a digital signal processor, an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. For example, a storage medium may be coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC, which may be located in a user terminal. In the alternative, the processor and the storage medium may reside in different components in a user terminal.
In one or more exemplary designs, the functions described above in connection with the embodiments of the invention may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media that facilitate transfer of a computer program from one place to another. Storage media may be any available media that can be accessed by a general purpose or special purpose computer. For example, such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to carry or store program code in the form of instructions or data structures and which can be read by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Additionally, any connection is properly termed a computer-readable medium, and, thus, is included if the software is transmitted from a website, server, or other remote source via a coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wirelessly, e.g., infrared, radio, and microwave. Such discs (disk) and disks (disc) include compact disks, laser disks, optical disks, DVDs, floppy disks and blu-ray disks where disks usually reproduce data magnetically, while disks usually reproduce data optically with lasers. Combinations of the above may also be included in the computer-readable medium.
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. A motor control method comprising:
Acquiring the nth starting and stopping parameters and the (n-1) th starting and stopping parameters of the motor;
determining the n + 1-th starting and stopping parameter of the motor according to the nth starting and stopping parameter and the n-1-th starting and stopping parameter;
Configuring the n + 1-time start-stop parameter as a start-stop parameter of the motor, so as to control the n + 1-time start and/or stop of the motor by using the n + 1-time start-stop parameter;
Wherein n is an integer of not less than 1, wherein
the start-stop parameter includes at least one of: starting time, a heating time constant after starting and switch tripping time;
Determining the n + 1-th starting and stopping parameter of the motor according to the nth starting and stopping parameter and the n-1-th starting and stopping parameter, wherein the n + 1-th starting and stopping parameter at least comprises one of the following parameters:
Determining the (n +1) th starting time of the motor according to the (n +1) th starting time and the (n-1) th starting time;
Determining a heating time constant of the motor after n +1 starting according to the heating time constant after the nth starting, the nth starting time and the (n-1) starting time;
Determining the (n +1) th trip time of the motor according to the (n-1) th trip time and the (n) th trip time, wherein
The determining the n +1 th starting time of the motor according to the nth starting time and the n-1 th starting time comprises the following steps:
The start-up time is determined by the functional relationship:
Wherein,Is the (n +1) th start-up time,for the nth time of start-up,The n-1 starting time, and e is a natural constant of 2.718;
The determining the heating time constant of the motor after n +1 th starting according to the heating time constant after n-th starting, the n-th starting time and the n-1 th starting time comprises the following steps:
the heating time constant is determined by the following functional relationship:
Wherein,Is the heating time constant of the motor after the n +1 th start,Is the heating time constant of the motor after the nth start,for the nth start-up time of the motor,the (n-1) th starting time of the motor;
the step of determining the (n +1) th trip time of the motor according to the (n-1) th trip time and the nth trip time comprises the following steps:
The trip time is determined by the functional relationship:
wherein,for the trip time of the switch n +1,For the nth trip time of the switch,Trip time for switch n-1;
The method further comprises the following steps: constructing a calculation model for determining start-stop parameters;
The determining the (n +1) th start-stop parameter according to the (n) th start-stop parameter and the (n-1) th start-stop parameter includes: and calling the calculation model to process the nth starting and stopping parameter and the (n-1) th starting and stopping parameter to obtain the (n +1) th starting and stopping parameter of the motor.
2. A motor control apparatus for operating the method of claim 1, the apparatus comprising:
the acquisition module is used for acquiring the nth starting and stopping parameters and the (n-1) th starting and stopping parameters of the motor;
The determining module is used for determining the (n +1) th starting and stopping parameter of the motor according to the nth starting and stopping parameter and the (n-1) th starting and stopping parameter;
the setting module is used for configuring the (n +1) th starting and stopping parameter as the starting and stopping parameter of the motor so as to control the (n +1) th starting and stopping of the motor by using the (n +1) th starting and stopping parameter;
Wherein n is an integer of not less than 1.
3. The motor control apparatus according to claim 2, further comprising:
the construction module is used for constructing a calculation model for determining the starting and stopping parameters;
The determining module is specifically configured to invoke the calculation model to process the nth start-stop parameter and the (n-1) th start-stop parameter, so as to obtain an (n +1) th start-stop parameter of the motor.
4. a motor control apparatus, comprising: a memory for storing a computer program which, when executed by the processor, implements the motor control method of claim 1 and a processor.
5. A computer-readable medium, in which a computer program is stored which, when being executed by a processor, carries out a motor control method according to claim 1.
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| JPH09261850A (en) * | 1996-03-19 | 1997-10-03 | Okuma Mach Works Ltd | Motor control device |
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| CN105024612A (en) * | 2015-07-29 | 2015-11-04 | 重庆华数机器人有限公司 | Parameter identification-based motor current control method and system |
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| JPH09261850A (en) * | 1996-03-19 | 1997-10-03 | Okuma Mach Works Ltd | Motor control device |
| CN103606891A (en) * | 2013-11-11 | 2014-02-26 | 北京四方继保自动化股份有限公司 | Motor thermal overload protection method |
| CN104378033A (en) * | 2014-10-08 | 2015-02-25 | 西北工业大学 | Method for tracing maximum power point of switch reluctance motor wind power generation system |
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