WO2016041142A1 - 电机堵转的报警确定方法和装置、电器 - Google Patents
电机堵转的报警确定方法和装置、电器 Download PDFInfo
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- WO2016041142A1 WO2016041142A1 PCT/CN2014/086613 CN2014086613W WO2016041142A1 WO 2016041142 A1 WO2016041142 A1 WO 2016041142A1 CN 2014086613 W CN2014086613 W CN 2014086613W WO 2016041142 A1 WO2016041142 A1 WO 2016041142A1
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- motor
- active power
- stalling
- phase
- power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
Definitions
- the invention belongs to the field of electric motors, and particularly relates to an alarm determining method and device for electric motor stalling, and an electric appliance.
- motors are widely used in various fields, especially in the field of household appliances.
- different household appliances have different requirements for motors, so various types of motors have been born, including: AC/DC motors for commercial air conditioners, refrigerator compressor motors, air compressor motors, pump motors, household washing motors (strings).
- the object of the present invention is to provide an alarm determining method and device for motor stalling, and an electric appliance, for detecting and determining whether to block or not when the motor is in operation.
- the present invention provides a method for determining an alarm of a motor stall, and the method for determining an alarm of the motor stall includes:
- the stalling determination condition is: the first active power is less than the stall power threshold of the motor, and The second active power is greater than or equal to the stall power threshold of the motor phase resistance.
- the present invention provides an alarm determining device for stalling a motor, and the alarm determining device for stalling the motor includes:
- An acquiring unit configured to acquire a first active power of the motor and obtain a second active power of the phase resistance of the motor
- the power-off unit is configured to disconnect the power supply to the motor when the stalling determination condition continues to meet the preset time, and prompt the stalling information, wherein the stalling determination condition is: the first active power is less than the blocking of the motor A turn power threshold, and the second active power is greater than or equal to a stall power threshold of the motor phase resistance.
- the present invention provides an electric appliance using a motor, the electric appliance using the electric motor including the above-described alarm determining device and motor for stalling the motor.
- the invention has the beneficial effects that: when the motor is powered on, the first active power of the motor is obtained in real time, and the second active power of the phase resistance of the motor is simultaneously acquired while acquiring the first active power of the motor; Disconnecting the power supply to the motor when the first active power is less than the stall power threshold of the motor and the second active power is greater than or equal to the stall power threshold of the motor phase resistance. Blocking information. In this way, the motor is detected to be blocked in real time. If it is blocked, the power supply to the motor is disconnected in time, and the blocking information is output in time to prompt the user to check the motor or replace the motor in time.
- FIG. 1 is a flowchart showing an implementation of an alarm determining method for a motor stalled according to an embodiment of the present invention
- FIG. 2 is a flowchart of an implementation of acquiring a first active power
- FIG. 3 is a flow chart showing an implementation of acquiring a second active power of a phase resistance of a motor
- FIG. 4 is a flow chart of an optimization implementation of an alarm determining method for a motor stalled according to an embodiment of the present invention
- FIG. 5 is a structural diagram of a structure of an alarm determining device for a motor stalled according to an embodiment of the present invention
- Figure 6 is a structural diagram of the acquisition unit 61 of Figure 5;
- FIG. 7 is still another structural diagram of the acquisition unit 61 of FIG. 5;
- FIG. 8 is a structural diagram of the interrupting electric unit 62 of FIG. 5.
- FIG. 1 shows an implementation flow of an alarm determination method for a motor stalled according to an embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown.
- the method for determining the alarm of the motor stalling includes the steps A11 and A12.
- step A11 the first active power of the motor is obtained, and the second active power of the phase resistance of the motor is obtained.
- the manner of acquiring the first active power is not limited.
- the active power of the motor is detected by the power detector in real time, and the detected active power is taken as the first active power.
- FIG. 2 shows an implementation flow for acquiring the first active power, and for convenience of description, only parts related to the embodiment of the present invention are shown.
- the step of acquiring the first active power of the motor specifically includes:
- Step A111 acquiring a phase current of the motor and a phase voltage of the motor
- Step A112 calculating the first active power according to a phase current of the motor and a phase voltage of the motor.
- step A111 is performed to detect the phase current of the motor in real time, and to detect the phase voltage of the motor.
- the manner of detecting the phase current of the motor is not limited herein, and can be implemented by using the prior art.
- the manner of detecting the phase voltage of the motor is not limited herein, and can be implemented by using the prior art.
- an electric appliance using a motor in which a processor chip, such as a controller, is provided with data calculation and processing functions; therefore, for a certain moment, according to the moment
- the detected phase current of the motor and the phase voltage of the motor are determined by the alarm determining device of the motor stall provided by the embodiment of the present invention, and the first active power at the moment is calculated by the processor chip; the first active power is specifically calculated.
- the mathematical model is as follows:
- the first active power is described.
- the first active power is calculated by using the mathematical model as follows: a plane coordinate system is established, and two non-parallel axes are determined for the plane coordinate system, including an ⁇ -axis and a ⁇ -axis; therefore, in the plane coordinate system, the motor is phase current is divided into two part component, including [alpha] axis component and a component I ⁇ beta] axis I ⁇ ; phase voltage of the motor is divided into two part component, including [alpha] V ⁇ -axis component and the shaft beta] Component V ⁇ .
- phase current component I ⁇ the phase current component I ⁇ phase voltage component V ⁇
- phase voltage component V ⁇ the phase voltage component V ⁇
- the mathematical model of the first active power ie, formula (1) is calculated according to the above, and the first An active power P.
- the manner of acquiring the second active power is not limited.
- the phase current of the phase resistance of the motor and the phase voltage of the phase resistance of the motor are simultaneously detected at the moment, and the phase current according to the detected phase resistance of the motor is detected.
- the phase voltage of the phase resistance of the motor is obtained, and the second active power is calculated.
- FIG. 3 shows an implementation flow of acquiring the second active power of the phase resistance of the motor. For the convenience of description, only the present embodiment is shown. Portions related to the embodiments of the invention.
- the step of acquiring the second active power of the phase resistance of the motor specifically includes:
- Step A113 obtaining a phase current of a phase resistance of the motor
- Step A114 calculating the second active power according to a power loss model of the phase resistance by using a phase current of the phase resistance of the motor as a parameter.
- step A113 is performed to detect the phase current of the motor in real time, and to detect the phase current of the phase resistance of the motor.
- the manner of detecting the phase current of the phase resistance of the motor is not limited herein, and can be implemented by using the prior art.
- an electric appliance using a motor in which a processor chip, such as a controller, is provided with data calculation and processing functions; therefore, the phase of the motor phase resistance detected at a certain time is The current can be calculated from the power loss model of the phase resistance to calculate the second active power at that moment.
- the power loss model is:
- the P R is the second active power
- the n is a motor phase number
- the I s is a phase current of the motor phase resistance
- the R s is a phase resistance of the motor.
- the power loss model provided by the specific embodiment first determines the phase number of the motor, and detects the phase resistance of the motor in advance; and then only needs to detect the phase current of the phase resistance of the motor, and can calculate the second active by formula (2). power.
- Step A12 when the time when the stall determination condition continues to be met reaches the preset time, the power supply to the motor is turned off, and the stalling information is prompted, and the stalling determination condition is: the first active power is less than the stall power threshold of the motor. And the second active power is greater than or equal to a stall power threshold of the motor phase resistance.
- the stall power threshold of the motor is determined in advance, or the stall power threshold of the motor is determined according to experimental data.
- the active power of the motor is directly obtained by the power detector, and the active power is used as the stall power threshold of the motor.
- the weight is determined according to the experimental data, and the weighted average of the plurality of active powers is determined by the determined weight, and the stall power threshold of the motor is calculated.
- the threshold value of the stall power of the motor when the motor is blocked, the phase current and the phase voltage of the motor are detected, and the active power of the motor is calculated according to the detected phase current and the phase voltage, and the active power is calculated.
- Power is used as the stall power threshold for the motor.
- the phase current and the phase voltage of the motor are detected multiple times, and each active power is calculated for each phase current and phase voltage detected at the same time, and each active power is determined according to experimental data. The weight of the power, and then the weighted average of the multiple active powers, and the calculated stall power threshold of the motor are calculated.
- the stall power threshold of the motor phase resistance is determined in advance, or the stall power threshold of the motor phase resistance is determined according to experimental data.
- the active power of the phase resistance of the motor is directly obtained by the power detector, and the active power is used as the stall power of the phase resistance of the motor. Threshold.
- a plurality of active powers of the phase resistance of the motor are directly obtained, weights are determined according to experimental data, and then the weighted average of the plurality of active powers of the motor phase resistance is determined by a determined weight and calculated.
- the stall power threshold of the motor phase resistance is a specific implementation manner for determining the stall power threshold of the motor phase resistance.
- the stall power threshold of determining the phase resistance of the motor when the motor is blocked, the phase current and the phase voltage of the phase resistance of the motor are detected, and the active power of the motor is calculated according to the detected phase current and phase voltage.
- the active power is used as the stall power threshold of the phase resistance of the motor.
- the phase current and the phase voltage of the phase resistance of the motor are detected multiple times, and each active power is calculated for each phase current and phase voltage detected at the same time, and each test is determined according to experimental data.
- the weight of the secondary active power, and then the weighted average of the plurality of active powers of the motor phase resistance is determined by the determined weight, and the stall power threshold of the phase resistance of the motor is calculated.
- the preset time is also required to be manually set in advance, or the preset time is determined according to the experimental data.
- the stall determination condition is set in the embodiment of the present invention, only when the duration that the stall determination condition continues to be satisfied reaches the preset time, it is determined that the motor stall occurs, and the power supply loop to the motor is disconnected. In the case of determining that the sending motor is blocked, timely reminding is provided.
- the manner of reminding is not limited herein, and can be implemented by using existing technologies, such as: voice reminder, buzzer reminder, output alarm information, and the like.
- the motor will not be locked due to the accidental operation of the motor in the stall condition, and the motor will be stopped immediately, so that the motor stops working. Therefore, in the embodiment of the present invention, the determination is made by the preset condition, and the possibility of erroneous judgment (false judgment caused by the accidental operation in the stall determination condition) can be removed.
- FIG. 4 shows an optimized implementation flow of the alarm determining method for the motor stalling provided by the embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown.
- the step of disconnecting the power supply to the motor when the time when the stall determination condition is continuously satisfied reaches the preset time, prompting the stall information specifically includes steps 121 and 122. .
- Step 121 Calculate a ratio of the second active power to the first active power.
- Step 122 When the time when the ratio continues to be greater than the stall ratio threshold reaches a preset time, the power supply to the motor is turned off, and the stall information is prompted.
- the determination is that the motor occurs. Blocking, which can further reduce the probability of misjudgment. The motor is blocked more accurately.
- FIG. 5 shows the composition of the alarm determining device for the motor stalled according to the embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown.
- the alarm determining device for stalling the motor includes an obtaining unit 61 and a power-off unit 62.
- the obtaining unit 61 is configured to acquire a first active power of the motor and obtain a second active power of the phase resistance of the motor;
- the power-off unit 62 is configured to disconnect the power supply to the motor when the stalling determination condition continues to meet the preset time, and prompt the stalling information, wherein the stalling determination condition is: the first active power is smaller than the motor A stall power threshold, and the second active power is greater than or equal to a stall power threshold of the motor phase resistance.
- Fig. 6 shows the composition of the acquisition unit 61, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.
- the obtaining unit 61 includes:
- a first obtaining unit 611 configured to acquire a phase current of the motor and a phase voltage of the motor
- the first calculating unit 612 is configured to calculate the first active power according to a phase current of the motor and a phase voltage of the motor.
- Fig. 7 shows still another constituent structure of the acquisition unit 61, and for the convenience of description, only the portions related to the embodiment of the present invention are shown.
- the acquiring unit 61 further includes:
- a second obtaining unit 613 configured to acquire a phase current of a phase resistance of the motor
- the second calculating unit 614 is configured to calculate the second active power according to a power loss model of the phase resistance by using a phase current of the phase resistance of the motor as a parameter.
- the power loss model is:
- the P R is the second active power
- the n is a motor phase number
- the I s is a phase current of the motor phase resistance
- the R s is a phase resistance of the motor.
- Fig. 8 shows the composition of the power-off unit 62, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.
- the power-off unit 62 includes:
- the ratio calculating unit 621 is configured to calculate a ratio of the second active power to the first active power
- the sub-breaking unit 622 is configured to disconnect the power supply to the motor when the ratio continues to be greater than the stall ratio threshold for a preset time, and prompt the stall information.
- the embodiment of the invention further provides an electric appliance using a motor, wherein the electric appliance using the electric motor comprises the above-mentioned alarm determining device and motor for stalling the motor.
- each unit included in the alarm determining device for motor stall provided by the embodiment of the present invention is only divided according to functional logic, but is not limited to the above division, as long as the corresponding function can be realized.
- the specific names of the respective functional units are only for convenience of distinguishing from each other, and are not intended to limit the scope of protection of the present invention.
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Abstract
提供了电机堵转的报警确定方法和装置、电器。获取电机的第一有功功率，同时获取电机相电阻的第二有功功率；在堵转判定条件持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息，所述堵转判定条件为：所述第一有功功率小于电机的堵转功率阈值、且所述第二有功功率大于或等于电机相电阻的堵转功率阈值。这样，实时检测电机是否发生堵转，如果堵转，及时断开对电机的供电，并及时输出堵转信息以提示用户进行及时检查电机或更换电机。
Description
本发明属于电机领域，尤其涉及电机堵转的报警确定方法和装置、电器。
目前，电机得到了各个领域的广泛使用，尤其在家用电器领域。但不同家用电器对电机提出了不同要求，因此诞生了各类电机，包括:商用空调器用的AC/DC类电机、冰箱压缩机电机、空气压缩机电机、泵类电机、家用洗涤类电机（串激电机、波轮电机、洗碗机电泵）等；例如空调，压缩机作为空调的核心部分，通过其来实现温度调节的。
但如果电机堵转，极易导致电机损坏、甚至损坏整个家用电器。
本发明的目的在于提供电机堵转的报警确定方法和装置、电器，以在电机工作时，检测并判定是否堵转。
一方面，本发明提供一种电机堵转的报警确定方法，所述电机堵转的报警确定方法包括：
获取电机的第一有功功率，同时获取电机相电阻的第二有功功率；
在堵转判定条件持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息，所述堵转判定条件为：所述第一有功功率小于电机的堵转功率阈值、且所述第二有功功率大于或等于电机相电阻的堵转功率阈值。
一方面，本发明提供一种电机堵转的报警确定装置，所述电机堵转的报警确定装置包括：
获取单元，用于获取电机的第一有功功率，同时获取电机相电阻的第二有功功率；
断电单元，用于在堵转判定条件持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息，所述堵转判定条件为：所述第一有功功率小于电机的堵转功率阈值、且所述第二有功功率大于或等于电机相电阻的堵转功率阈值。
一方面，本发明提供一种使用电机的电器，所述使用电机的电器包括上述的电机堵转的报警确定装置和电机。
本发明的有益效果：在电机上电工作时，实时获取电机的第一有功功率，在获取电机的第一有功功率的同时，同时获取电机相电阻的第二有功功率；在堵转判定条件（所述第一有功功率小于电机的堵转功率阈值、且所述第二有功功率大于或等于电机相电阻的堵转功率阈值）持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息。这样，实时检测电机是否发生堵转，如果堵转，及时断开对电机的供电，并及时输出堵转信息以提示用户进行及时检查电机或更换电机。
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的电机堵转的报警确定方法的实现流程图；
图2是获取第一有功功率的的实现流程图；
图3是获取电机相电阻的第二有功功率的实现流程图；
图4是本发明实施例提供的电机堵转的报警确定方法一种优化实现流程图；
图5是本发明实施例提供的电机堵转的报警确定装置的组成结构图；
图6是图5中获取单元61的组成结构图；
图7是图5中获取单元61的又一组成结构图；
图8是图5中断电单元62的组成结构图。
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。为了说明本发明所述的技术方案，下面通过具体实施例来进行说明。
图1示出了本发明实施例提供的电机堵转的报警确定方法的实现流程，为了便于描述，仅示出了与本发明实施例相关的部分。
本发明实施例提供的电机堵转的报警确定方法，参见图1，所述电机堵转的报警确定方法包括步骤A11和步骤A12。
步骤A11，获取电机的第一有功功率，同时获取电机相电阻的第二有功功率。
在本发明实施例中，对于获取第一有功功率的方式不做限定。
作为一种获取第一有功功率的实施方式，在电机工作时，通过功率检测器实时检测该电机的有功功率，将检测到的有功功率作为第一有功功率。
图2示出了获取第一有功功率的实现流程，为了便于描述，仅示出了与本发明实施例相关的部分。
作为又一种获取第一有功功率的实施方式，参见图2，所述获取电机的第一有功功率这一步骤具体包括：
步骤A111，获取电机的相电流和电机的相电压；
步骤A112，根据所述电机的相电流和所述电机的相电压，计算所述第一有功功率。
具体地，在电机工作时，执行步骤A111实时检测电机的相电流，以及检测电机的相电压。其中，检测电机的相电流的方式在此不做限定，可采用现有技术实现。同理，对检测电机的相电压的方式在此不做限定，可采用现有技术实现。
需说明的是，在本实施例中，提供了使用电机的电器，在该电器中设有数据计算和处理功能的处理器芯片，例如控制器；因此，针对某一时刻，可根据在该时刻检测到的电机的相电流和电机的相电压，采用本发明实施例提供的电机堵转的报警确定装置可通过该处理器芯片，计算出该时刻的第一有功功率；具体计算第一有功功率的数学模型如下：
P=V α I α +V β
I β （1）；
在公式（1）中，所述为第一有功功率。
具体使用该数学模型计算出第一有功功率的方式如下：建立平面坐标系，为该平面坐标系确定非平行的两轴，包括 α
轴和 β 轴；因此，在该平面坐标系中，将电机的相电流分为两部分分量，包括 α 轴上的分量I α 和 β 轴上的分量I β
；将电机的相电压分为两部分分量，包括α 轴上的分量V α 和 β 轴上的分量V β 。
进而，可以相电流分量I α 、相电流分量I β
相电压分量V α 和相电压分量V β
为参数，根据上述的计算第一有功功率的数学模型（即公式（1）），计算出第一有功功率P。
在本发明实施例中，对于获取第二有功功率的方式不做限定。作为一获取电机相电阻的第二有功功率的实施例，电机工作时，在该时刻同时检测电机相电阻的相电流、电机相电阻的相电压，根据检测到的电机相电阻的相电流、检测到的电机相电阻的相电压，计算出第二有功功率。
作为一获取电机相电阻的第二有功功率的又一实施例，参见图3，图3示出了获取电机相电阻的第二有功功率的一实现流程，为了便于描述，仅示出了与本发明实施例相关的部分。
参见图3，在本实施例中，所述获取电机相电阻的第二有功功率这一步骤具体包括：
步骤A113，获取电机相电阻的相电流；
步骤A114，以所述电机相电阻的相电流为参数，根据相电阻的功率损耗模型计算所述第二有功功率。
具体地，在电机工作时，执行步骤A113实时检测电机的相电流，以及检测电机相电阻的相电流。其中，检测电机相电阻的相电流的方式在此不做限定，可采用现有技术实现。
同需说明的是，对于本实施例提供了使用电机的电器，在该电器中设有数据计算和处理功能的处理器芯片，例如控制器；因此对于某个时刻检测到的电机相电阻的相电流，可通过相电阻的功率损耗模型计算出该时刻的第二有功功率。
作为本实施例计算第二有功功率所采用的功率损耗模型的一具体实施方式，所述功率损耗模型为：
PR=nIs
2Rs（2），
所述 PR 为所述第二有功功率，所述n为电机相数，所述Is
为所述电机相电阻的相电流，所述Rs 为所述电机的相电阻。
这样本具体实施方式提供的功率损耗模型，首先确定电机的相数，并且预先检测出电机的相电阻；进而仅需检测电机相电阻的相电流，即可通过公式（2）计算出第二有功功率。
步骤A12，在堵转判定条件持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息，所述堵转判定条件为：所述第一有功功率小于电机的堵转功率阈值、且所述第二有功功率大于或等于电机相电阻的堵转功率阈值。
在本发明实施例中，预先人为确定该电机的堵转功率阈值，或者根据实验数据该确定电机的堵转功率阈值。
作为确定该确定电机的堵转功率阈值的一具体实施方式，在电机堵转时，直接通过功率检测器获取电机的有功功率，将该有功功率作为该电机的堵转功率阈值。优选的，在电机堵转的状态下，直接获取电机的多个有功功率，根据实验数据确定权重，进而以确定的权重对该多个有功功率进行加权平均并计算得到该电机的堵转功率阈值。
作为确定该确定电机的堵转功率阈值的一具体实施方式，在电机堵转时，检测电机的相电流和相电压，根据检测到的相电流和相电压计算出电机的有功功率，将该有功功率作为该电机的堵转功率阈值。优选的，在电机堵转的状态下，多次检测电机的相电流和相电压，针对每次同时检测到的相电流和相电压分别计算出每次的有功功率，根据实验数据确定每次有功功率所占的权重，进而以确定的权重对该多次的有功功率进行加权平均并计算得到该电机的堵转功率阈值。
在本发明实施例中，预先人为确定该电机相电阻的堵转功率阈值，或者根据实验数据该确定电机相电阻的堵转功率阈值。
作为确定该确定电机相电阻的堵转功率阈值的一具体实施方式，在电机堵转时，直接通过功率检测器获取电机相电阻的有功功率，将该有功功率作为该电机相电阻的堵转功率阈值。优选的，在电机堵转的状态下，直接获取电机相电阻的多个有功功率，根据实验数据确定权重，进而以确定的权重对电机相电阻的该多个有功功率进行加权平均并计算得到该电机相电阻的堵转功率阈值。
作为确定该确定电机相电阻的堵转功率阈值的一具体实施方式，在电机堵转时，检测电机相电阻的相电流和相电压，根据检测到的相电流和相电压计算出电机的有功功率，将该有功功率作为该电机相电阻的堵转功率阈值。优选的，在电机堵转的状态下，多次检测电机相电阻的相电流和相电压，针对每次同时检测到的相电流和相电压分别计算出每次的有功功率，根据实验数据确定每次有功功率所占的权重，进而以确定的权重对电机相电阻的该多次的有功功率进行加权平均并计算得到该电机相电阻的堵转功率阈值。
另在本发明实施例中，还需预先人为设定该预设时间，或者根据实验数据该确定该预设时间。
本发明实施例设定所述堵转判定条件之后，只有该堵转判定条件持续满足的持续时间达到预设时间时，才判定为发生电机堵转，断开对电机的供电回路，与此同时，在判定发送电机堵转时进行及时提醒，提醒的方式在此不做限定，可采用现有技术实现，例如：语音提醒、蜂鸣提醒、输出报警信息等等。
这样，不会因为电机偶然在堵转判定条件工作，而立即判定电机发生堵转，并立即停止对电机供电，使得电机停止工作。因此，本发明实施例通过预设条件进行判定，能够去除误判（偶然工作在堵转判定条件而引起的误判）的可能性。
图4示出了本发明实施例提供的电机堵转的报警确定方法一种优化实现流程，为了便于描述，仅示出了与本发明实施例相关的部分。
作为本发明一优选实施例，参见图4，所述在堵转判定条件持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息这一步骤，具体包括步骤121和步骤122。
步骤121，计算出所述第二有功功率与所述第一有功功率的比值。
在本优选实施中，当计算出所述第二有功功率和所述第一有功功率之后，将所述第二有功功率与所述第一有功功率相比，确定出所述第二有功功率与所述第一有功功率的比值。
步骤122，在所述比值持续大于堵转比值阈值的时间达到预设时间时，断开对电机的供电，提示堵转信息。
在本优选实施中，不但要满足堵转判定条件的持续时间要大于或等于该预设时间，而且还要求所述比值持续大于堵转比值阈值的时间达到预设时间时，采用判定为电机发生堵转，进而可进一步减小误判堵转的概率。更加精确地识别出电机堵转。
本领域普通技术人员还可以理解，实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，所述的程序可以在存储于一计算机可读取存储介质中，所述的存储介质，包括ROM/RAM、磁盘、光盘等。
需要说明的是，本发明实施例提供的电机堵转的报警确定方法与本发明实施例提供的电机堵转的报警确定装置相互适用。图5示出了本发明实施例提供的电机堵转的报警确定装置的组成结构，为了便于描述，仅示出了与本发明实施例相关的部分。
本发明实施例提供的一种电机堵转的报警确定装置，参见图5，所述电机堵转的报警确定装置包括获取单元61和断电单元62。
获取单元61，用于获取电机的第一有功功率，同时获取电机相电阻的第二有功功率；
断电单元62，用于在堵转判定条件持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息，所述堵转判定条件为：所述第一有功功率小于电机的堵转功率阈值、且所述第二有功功率大于或等于电机相电阻的堵转功率阈值。
图6示出了获取单元61的组成结构，为了便于描述，仅示出了与本发明实施例相关的部分。
在本发明一实施例中，参见图6，所述获取单元61包括：
第一获取单元611，用于获取电机的相电流和电机的相电压；
第一计算单元612，用于根据所述电机的相电流和所述电机的相电压，计算所述第一有功功率。
图7示出了获取单元61的又一组成结构，为了便于描述，仅示出了与本发明实施例相关的部分。
在本发明一实施例中，参见图7，所述获取单元61还包括：
第二获取单元613，用于获取电机相电阻的相电流；
第二计算单元614，用于以所述电机相电阻的相电流为参数，根据相电阻的功率损耗模型计算所述第二有功功率。
在实施例一实施方式中，所述功率损耗模型为：
PR=nIs
2Rs ，
所述PR 为所述第二有功功率，所述n为电机相数，所述Is
为所述电机相电阻的相电流，所述Rs 为所述电机的相电阻。
图8示出了断电单元62的组成结构，为了便于描述，仅示出了与本发明实施例相关的部分。
在本发明一实施例中，参见图8，所述断电单元62包括：
比值计算单元621，用于计算出所述第二有功功率与所述第一有功功率的比值；
子断开单元622，用于在所述比值持续大于堵转比值阈值的时间达到预设时间时，断开对电机的供电，提示堵转信息。
本发明实施例还提供一种使用电机的电器，所述使用电机的电器包括上述的电机堵转的报警确定装置和电机。
本领域技术人员可以理解为本发明实施例提供的电机堵转的报警确定装置所包括的各个单元只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能单元的具体名称也只是为了便于相互区分，并不用于限制本发明的保护范围。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下做出若干等同替代或明显变型，而且性能或用途相同，都应当视为属于本发明由所提交的权利要求书确定的专利保护范围。
Claims (11)
- 一种电机堵转的报警确定方法，其特征在于，所述电机堵转的报警确定方法包括：获取电机的第一有功功率，同时获取电机相电阻的第二有功功率；在堵转判定条件持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息，所述堵转判定条件为：所述第一有功功率小于电机的堵转功率阈值、且所述第二有功功率大于或等于电机相电阻的堵转功率阈值。
- 如权利要求1所述的电机堵转的报警确定方法，其特征在于，所述获取电机的第一有功功率这一步骤具体包括：获取电机的相电流和电机的相电压；根据所述电机的相电流和所述电机的相电压，计算所述第一有功功率。
- 如权利要求1所述的电机堵转的报警确定方法，其特征在于，所述获取电机相电阻的第二有功功率这一步骤具体包括：获取电机相电阻的相电流；以所述电机相电阻的相电流为参数，根据相电阻的功率损耗模型计算所述第二有功功率。
- 如权利要求3所述的电机堵转的报警确定方法，其特征在于，所述功率损耗模型为：PR=nIs 2Rs ，所述PR 为所述第二有功功率，所述n为电机相数，所述Is 为所述电机相电阻的相电流，所述Rs 为所述电机的相电阻。
- 如权利要求1至4任一项所述的电机堵转的报警确定方法，其特征在于，所述在堵转判定条件持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息这一步骤，具体包括：计算出所述第二有功功率与所述第一有功功率的比值；在所述比值持续大于堵转比值阈值的时间达到预设时间时，断开对电机的供电，提示堵转信息。
- 一种电机堵转的报警确定装置，其特征在于，所述电机堵转的报警确定装置包括：获取单元，用于获取电机的第一有功功率，同时获取电机相电阻的第二有功功率；断电单元，用于在堵转判定条件持续满足的时间达到预设时间时断开对电机的供电，提示堵转信息，所述堵转判定条件为：所述第一有功功率小于电机的堵转功率阈值、且所述第二有功功率大于或等于电机相电阻的堵转功率阈值。
- 如权利要求6所述的电机堵转的报警确定装置，其特征在于，所述获取单元包括：第一获取单元，用于获取电机的相电流和电机的相电压；第一计算单元，用于根据所述电机的相电流和所述电机的相电压，计算所述第一有功功率。
- 如权利要求6所述的电机堵转的报警确定装置，其特征在于，所述获取单元还包括：第二获取单元，用于获取电机相电阻的相电流；第二计算单元，用于以所述电机相电阻的相电流为参数，根据相电阻的功率损耗模型计算所述第二有功功率。
- 如权利要求8所述的电机堵转的报警确定装置，其特征在于，所述功率损耗模型为：PR=nIs 2Rs ，所述PR 为所述第二有功功率，所述n为电机相数，所述Is 为所述电机相电阻的相电流，所述Rs 为所述电机的相电阻。
- 如权利要求6所述的电机堵转的报警确定装置，其特征在于，所述断电单元包括：比值计算单元，用于计算出所述第二有功功率与所述第一有功功率的比值；子断开单元，用于在所述比值持续大于堵转比值阈值的时间达到预设时间时，断开对电机的供电，提示堵转信息。
- 一种使用电机的电器，其特征在于，所述使用电机的电器包括权利要求6至10任一项所述的电机堵转的报警确定装置和电机。
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| CN111110004A (zh) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的电热电器制造有限公司 | 下料电机的运行控制方法、设备、烹饪器具和存储介质 |
| WO2023087603A1 (zh) * | 2021-11-16 | 2023-05-25 | 苏州威摩尔智能科技有限公司 | 一种滚刷的控制方法 |
| CN114006561A (zh) * | 2021-11-17 | 2022-02-01 | 江苏科技大学 | 一种无传感器方波控制工况下无刷直流电机的堵转状态异常检测方法 |
| CN114006561B (zh) * | 2021-11-17 | 2023-07-07 | 江苏科技大学 | 一种无传感器方波控制工况下无刷直流电机的堵转状态异常检测方法 |
| CN115597473A (zh) * | 2022-09-20 | 2023-01-13 | 广州汽车集团股份有限公司（Cn） | 位置确定方法、装置、车辆及存储介质 |
| CN115597473B (zh) * | 2022-09-20 | 2024-03-12 | 广州汽车集团股份有限公司 | 位置确定方法、装置、车辆及存储介质 |
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