WO2021192361A1 - Electric motor control device for electric home appliances - Google Patents
Electric motor control device for electric home appliances Download PDFInfo
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- WO2021192361A1 WO2021192361A1 PCT/JP2020/035437 JP2020035437W WO2021192361A1 WO 2021192361 A1 WO2021192361 A1 WO 2021192361A1 JP 2020035437 W JP2020035437 W JP 2020035437W WO 2021192361 A1 WO2021192361 A1 WO 2021192361A1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
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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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
Definitions
- the present invention relates to an electric motor control device for home electric appliances.
- Patent Document 1 discloses that synchronous PWM control is performed and a voltage command is corrected using a carrier synchronization correction map stored in advance.
- Patent Document 2 discloses that synchronous PWM control is performed to correct a phase shift from the voltage phase according to the number of pulses of the carrier wave.
- Patent Document 1 does not have a carrier synchronization correction map for each carrier wave, and depending on the load condition of the motor, the carrier synchronization correction map determined in advance may not be sufficiently corrected and the performance may be deteriorated, or all of them. If many carrier synchronization correction maps corresponding to the load are stored in advance, the capacity of the memory will be increased.
- Patent Document 2 it is possible to suppress an increase in memory capacity and suppress performance deterioration under any load condition, but there is a risk that driving will be difficult depending on the rotation speed range.
- An object of the present invention is to provide an electric motor control device for home electric appliances that can be driven in any rotation speed range and can reduce loss.
- the present invention is an electric motor control device for home appliances that performs synchronous PWM control, and uses a carrier wave generator that generates a carrier wave, and an electric motor based on an input voltage command and a carrier wave.
- a PWM control command generation unit that generates a PWM control command to be controlled, a control unit that controls an electric motor based on the PWM control command, and a deviation detection unit that detects a voltage phase shift between a voltage command and a predetermined reference voltage command.
- the carrier wave generation unit has a configuration in which the carrier wave is generated based on the voltage phase shift and the frequency command, and the number of pulses of the carrier wave can be set to 1.
- the present invention it is possible to suppress an increase in the capacity of a memory, suppress performance deterioration under any load condition, and further control an electric motor for a low-noise home appliance that can be driven in any rotation speed range.
- Equipment can be provided.
- the present invention relates to an electric motor control device for home electric appliances that controls an electric motor 105 having a plurality of phases of windings.
- the electric motor control device of the vacuum cleaner 10 will be described in detail below.
- the electric motor will be described below as a permanent magnet synchronous motor.
- FIG. 2 is an appearance of the vacuum cleaner 10 according to the present invention.
- FIG. 1 is a basic configuration diagram of an electric motor control device according to the present invention.
- the shift detection unit 101 detects the voltage phase shift ⁇ v based on the input voltage command and the predetermined ideal voltage command during synchronous PWM control. Specifically, the "current voltage phase” is calculated from the input voltage command by a predetermined calculation. The deviation (deviation) between the calculated “current voltage phase ⁇ v” and the “reference voltage phase ⁇ v base during synchronous PWM” is output as the voltage phase deviation ⁇ v.
- the carrier period Tc is calculated from the voltage phase shift ⁇ v output from the shift detection unit 101 and the carrier pulse number Np set based on the input frequency command ⁇ * and frequency command ⁇ *. Determine and generate carrier waves.
- the number of pulses Np indicates how many times the carrier frequency is the frequency command ⁇ *. If the frequency command increases and Np ⁇ 3, high-speed processing performance is required, which may make driving difficult. Therefore, by setting Np to 1, it is possible to drive even in the high speed range, and the switching loss of the inverter can be reduced. That is, there is a carrier wave having the same period as the frequency command.
- the carrier frequency Fc can be calculated by 2 ⁇ ⁇ Np ⁇ ⁇ ( ⁇ v ⁇ Kv) + ⁇ * ⁇ .
- Kv is the PLL gain.
- the carrier cycle Tc is 1 / Fc.
- the control (PLL control) is performed to correct the shift in a fixed time regardless of the magnitude of the voltage phase shift.
- the PWM control command generation unit 103 generates an inverter drive signal based on the carrier wave generated by the carrier wave generation unit and the input voltage command v, and causes the inverter circuit 104, which is the control unit, to generate an inverter drive signal. Outputs the inverter drive signal. Based on this inverter drive signal, the inverter circuit 104 generates a control command for controlling the electric motor 105 to which the fan 106 as a load is attached.
- the deviation detection unit 101, the carrier wave generation unit 102, and the PWM control command generation unit 103 are described as processing in the microcomputer 100 which is a processing unit, processing outside the microcomputer is also possible.
- the voltage command determines the duty to be output to each phase of the motor 105, and the carrier wave or carrier cycle Tc determines the duty cycle.
- PLL phase locked loop
- the error (deviation) between the voltage phase ⁇ v and the carrier wave is calculated in advance with the voltage phase ⁇ v at the peak period (calculated by the peak and reflected by the valley). Calculated from the determined ideal reference voltage phase ⁇ vbase.
- the load of the mounted motor of the vacuum cleaner fluctuates finely by turning the power on / off and sucking dust when it is turned on. Specifically, the voltage phase fluctuation occurs due to this load fluctuation, and the voltage phase shift ⁇ v occurs along with the voltage phase fluctuation as shown in FIG.
- the voltage phase shift detection point 406 specifically, the voltage phase shift ⁇ v between the current voltage phase waveform 403 and the reference voltage phase waveform 402 is detected at the current voltage phase waveform point at the peak or valley of the carrier wave, and the voltage phase shift is detected.
- PLL control is started for ⁇ v.
- the reference voltage phase waveform 404 at the time of PLL control becomes Cos ⁇ * + (Kv ⁇ ⁇ v) ⁇ t, and the carrier wave 401 is corrected by the response time of the set PLL gain Kv. Further, the relationship between the reference voltage phase waveform 402, the reference voltage phase waveform 404 during PLL control, and the carrier wave 401 is the same.
- the voltage phase shift ⁇ v can be corrected in the same fixed time by the shift detection unit 101 and the carrier wave generation unit 102 of the present invention. That is, according to the present invention, the interval from the time when the voltage phase shift ⁇ v is detected by the shift detection unit 101 to the time when the voltage phase shift ⁇ v is not detected is constant regardless of the load of the motor 105, and is accurate. Can be corrected. As a result, it is possible to provide an electric motor control device for low-noise home appliances that can suppress an increase in memory capacity and suppress performance deterioration under any load condition.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Electric Vacuum Cleaner (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Disclosed is a low-noise electric motor control device for electric home appliances. The electric motor control device can suppress memory expansion and can suppress performance degradation regardless of load state but also enables drive at any rotational speed range. The electric motor control device performs synchronous PWM control and has a carrier wave generation unit that generates a carrier wave, a PWM control command generation unit that, on the basis of a voltage command and the carrier wave as inputted thereto, generates a PWM control command for controlling an electric motor, and a deviation detection unit that detects the deviation between the voltage command and a predetermined reference voltage command. The carrier wave generation unit generates the carrier wave on the basis of the voltage phase deviation and a frequency command and can set the number of pulses of the carrier wave to 1.
Description
本発明は、家電機器用の電動機制御装置に関するものである。
The present invention relates to an electric motor control device for home electric appliances.
従来、掃除機や洗濯機などの家電用機器は、非同期ＰＷＭ制御を行っていた。
Conventionally, home appliances such as vacuum cleaners and washing machines have performed asynchronous PWM control.
しかし、駆動周波数が高くなった場合、電動機であるモータ騒音が発生する可能性があった。低騒音化を図る為に、特許文献１では同期ＰＷＭ制御を行い、予め記憶されたキャリア同期補正マップを用いて電圧指令を補正することが開示されている。特許文献２では、同期PWM制御を行い、キャリア波のパルス数に応じた電圧位相との位相ズレを補正することが開示されている。
However, when the drive frequency becomes high, there is a possibility that motor noise, which is an electric motor, will be generated. In order to reduce noise, Patent Document 1 discloses that synchronous PWM control is performed and a voltage command is corrected using a carrier synchronization correction map stored in advance. Patent Document 2 discloses that synchronous PWM control is performed to correct a phase shift from the voltage phase according to the number of pulses of the carrier wave.
しかし、特許文献１では、キャリア波毎のキャリア同期補正マップをもっておらず、モータの負荷状況によっては、予め定めたキャリア同期補正マップでは十分に補正されず性能低下となる恐れがある、又は、あらゆる負荷に対応した多くのキャリア同期補正マップを予め記憶した場合、メモリの大容量化につながる。
However, Patent Document 1 does not have a carrier synchronization correction map for each carrier wave, and depending on the load condition of the motor, the carrier synchronization correction map determined in advance may not be sufficiently corrected and the performance may be deteriorated, or all of them. If many carrier synchronization correction maps corresponding to the load are stored in advance, the capacity of the memory will be increased.
特許文献２でメモリの大容量化を抑止し、且つあらゆる負荷状態であっても性能低下を抑止可能であるが、回転数域によっては駆動が困難となる恐れがある。
In Patent Document 2, it is possible to suppress an increase in memory capacity and suppress performance deterioration under any load condition, but there is a risk that driving will be difficult depending on the rotation speed range.
本発明は、あらゆる回転数域で駆動でき、且つ損失低減が可能となる家電機器用の電動機制御装置を提供することを目的とする。
An object of the present invention is to provide an electric motor control device for home electric appliances that can be driven in any rotation speed range and can reduce loss.
本発明は上記課題を解決するために、同期ＰＷＭ制御する家電機器用の電動機制御装置であって、キャリア波を生成するキャリア波生成部と、入力された電圧指令とキャリア波に基づいて電動機を制御するＰＷＭ制御指令を生成するＰＷＭ制御指令生成部と、PWM制御指令に基づいて電動機を制御する制御部と、電圧指令と予め定めた基準電圧指令との電圧位相ズレを検出するズレ検出部と、を有し、キャリア波生成部は、前記電圧位相ズレと周波数指令に基づいてキャリア波を生成し、キャリア波のパルス数を1と設定できる構成とする。
In order to solve the above problems, the present invention is an electric motor control device for home appliances that performs synchronous PWM control, and uses a carrier wave generator that generates a carrier wave, and an electric motor based on an input voltage command and a carrier wave. A PWM control command generation unit that generates a PWM control command to be controlled, a control unit that controls an electric motor based on the PWM control command, and a deviation detection unit that detects a voltage phase shift between a voltage command and a predetermined reference voltage command. The carrier wave generation unit has a configuration in which the carrier wave is generated based on the voltage phase shift and the frequency command, and the number of pulses of the carrier wave can be set to 1.
本発明によれば、メモリの大容量化を抑止し、且つあらゆる負荷状態であっても性能低下を抑止可能でさらに、あらゆる回転数域で駆動が可能となる低騒音の家電機器用の電動機制御装置を提供できる。
According to the present invention, it is possible to suppress an increase in the capacity of a memory, suppress performance deterioration under any load condition, and further control an electric motor for a low-noise home appliance that can be driven in any rotation speed range. Equipment can be provided.
本発明は、複数相の巻線を有する電動機１０５を制御する家電機器用の電動機制御装置に関し、本発明の実施例として、電気掃除機１０の電動機制御装置を例として以下詳細に説明する。なお、電動機は永久磁石同期モータとして以下説明する。
The present invention relates to an electric motor control device for home electric appliances that controls an electric motor 105 having a plurality of phases of windings. As an embodiment of the present invention, the electric motor control device of the vacuum cleaner 10 will be described in detail below. The electric motor will be described below as a permanent magnet synchronous motor.
図２は、本発明に関わる電気掃除機１０の外観である。図１は、本発明に関わる電動機制御装置の基本構成図である。
FIG. 2 is an appearance of the vacuum cleaner 10 according to the present invention. FIG. 1 is a basic configuration diagram of an electric motor control device according to the present invention.
図１において、ズレ検出部１０１は、入力された電圧指令と予め定めた同期PWM制御時の理想電圧指令に基づいて、電圧位相ズレΔθvを検出する。具体的には、入力された電圧指令から所定の演算により「現在の電圧位相」を算出する。算出された「現在の電圧位相θv」と「同期PWM時の基準電圧位相θvbase」との偏差（ズレ）を電圧位相ズレΔθvとして出力する。
In FIG. 1, the shift detection unit 101 detects the voltage phase shift Δθv based on the input voltage command and the predetermined ideal voltage command during synchronous PWM control. Specifically, the "current voltage phase" is calculated from the input voltage command by a predetermined calculation. The deviation (deviation) between the calculated "current voltage phase θv" and the "reference voltage phase θv base during synchronous PWM" is output as the voltage phase deviation Δθv.
次に、キャリア波生成部102で、ズレ検出部101から出力された電圧位相ズレΔθvと入力された周波数指令ω*および周波数指令ω*に基づき設定されたキャリアのパルス数Npからキャリア周期Tcを決定し、キャリア波を生成する。パルス数Npはキャリア周波数が周波数指令ω*の何倍であるかを示すものである。周波数指令が増加するとNp≧3だと高速処理性能が必要となり、駆動が困難となる可能性がある。そこで、Npを１と設定することで高速域でも駆動が可能となり、インバータのスイッチングロスも低減できる。つまり、周波数指令と同周期のキャリア波が存在することとなる。
Next, in the carrier wave generation unit 102, the carrier period Tc is calculated from the voltage phase shift Δθv output from the shift detection unit 101 and the carrier pulse number Np set based on the input frequency command ω * and frequency command ω *. Determine and generate carrier waves. The number of pulses Np indicates how many times the carrier frequency is the frequency command ω *. If the frequency command increases and Np ≥ 3, high-speed processing performance is required, which may make driving difficult. Therefore, by setting Np to 1, it is possible to drive even in the high speed range, and the switching loss of the inverter can be reduced. That is, there is a carrier wave having the same period as the frequency command.
具体的には、キャリア周波数Fcは、2π×Np×｛(Δθv×Kv)+ω*｝で算出できる。ここで、KvはPLLゲインである。キャリア周期Tcは1/Fcとなる。
Specifically, the carrier frequency Fc can be calculated by 2π × Np × {(Δθv × Kv) + ω *}. Where Kv is the PLL gain. The carrier cycle Tc is 1 / Fc.
例えば、PLLゲインKvを1で設定すると、周波数指令ω*[rad/s]に(Δθv×1)[rad/s]を加算することとなり、Δθv[rad]のズレを1秒間で補正する制御となる。
For example, if the PLL gain Kv is set to 1, (Δθv × 1) [rad / s] will be added to the frequency command ω * [rad / s], and the deviation of Δθv [rad] will be corrected in 1 second. It becomes.
同様にPLLゲインKvが100の場合は1秒間にΔθv[rad]の100倍のズレを補正する制御となり、10[ms]でΔθv[rad]のズレを補正する制御となる。
Similarly, when the PLL gain Kv is 100, the control is to correct the deviation of Δθv [rad] 100 times per second, and the control is to correct the deviation of Δθv [rad] at 10 [ms].
これにより発生した電圧位相ズレに対し、電圧位相ズレの大きさに依らず、一定時間でズレを補正する制御（PLL制御）となる。
With respect to the voltage phase shift generated by this, the control (PLL control) is performed to correct the shift in a fixed time regardless of the magnitude of the voltage phase shift.
次に、PWM制御指令生成部１０３は、キャリア波生成部で生成されたキャリア波と、入力された電圧指令vと、に基づいて、インバータ駆動信号を生成し、制御部であるインバータ回路104にインバータ駆動信号を出力する。このインバータ駆動信号に基づいて、インバータ回路１０４で、負荷としてのファン１０６が取り付けられた電動機１０５を制御する制御指令を生成する。これら、ズレ検出部１０１、キャリア波生成部１０２、PWM制御指令生成部１０３は、処理部であるマイコン１００内の処理として記載したが、マイコン外での処理でも可能である。
Next, the PWM control command generation unit 103 generates an inverter drive signal based on the carrier wave generated by the carrier wave generation unit and the input voltage command v, and causes the inverter circuit 104, which is the control unit, to generate an inverter drive signal. Outputs the inverter drive signal. Based on this inverter drive signal, the inverter circuit 104 generates a control command for controlling the electric motor 105 to which the fan 106 as a load is attached. Although the deviation detection unit 101, the carrier wave generation unit 102, and the PWM control command generation unit 103 are described as processing in the microcomputer 100 which is a processing unit, processing outside the microcomputer is also possible.
なお、電圧指令は電動機１０５の各相に出力するDutyを決定し、キャリア波、又はキャリア周期TcはDutyの周期を決定するものである。
The voltage command determines the duty to be output to each phase of the motor 105, and the carrier wave or carrier cycle Tc determines the duty cycle.
次に、図３に１パルス時（Np=1）の負荷変動により電圧位相変動が生じた場合の電圧位相ズレ補正時の電圧位相波形とキャリア波の関係を示し電圧位相ズレを補正する制御（PLL（phase locked loop：位相同期回路）制御）について説明する。PLL制御では、電圧位相ズレΔθvを小さくなるようにキャリア周期Tcを決定する。
Next, FIG. 3 shows the relationship between the voltage phase waveform and the carrier wave at the time of voltage phase shift correction when the voltage phase fluctuation occurs due to the load fluctuation at one pulse (Np = 1), and the control for correcting the voltage phase shift (Np = 1). PLL (phase locked loop) control) will be described. In PLL control, the carrier period Tc is determined so that the voltage phase shift Δθv becomes small.
本処理は、キャリア波と電圧指令から求めた電圧位相θvを同期させるため、電圧位相θvとキャリア波との誤差（ズレ）を山周期（山で演算、谷で反映）で電圧位相θvと予め定めた理想となる基準電圧位相θvbaseから算出する。
In this process, since the carrier wave and the voltage phase θv obtained from the voltage command are synchronized, the error (deviation) between the voltage phase θv and the carrier wave is calculated in advance with the voltage phase θv at the peak period (calculated by the peak and reflected by the valley). Calculated from the determined ideal reference voltage phase θvbase.
電気掃除機は電源のON／OFFや、ON時に塵などを吸引することで搭載された電動機の負荷が細かく変動する。具体的には、この負荷変動により電圧位相変動が生じ、その電圧位相変動に伴い、図３のように、電圧位相ズレΔθvが生じる。
The load of the mounted motor of the vacuum cleaner fluctuates finely by turning the power on / off and sucking dust when it is turned on. Specifically, the voltage phase fluctuation occurs due to this load fluctuation, and the voltage phase shift Δθv occurs along with the voltage phase fluctuation as shown in FIG.
電圧位相変動発生前405では、電圧位相ズレΔθv=0であるため基準電圧位相波形４０２はCosω*tとなる。電圧位相ズレ検出点４０６、具体的にはキャリア波の山もしくは谷における現在の電圧位相波形点で現在の電圧位相波形４０３と基準電圧位相波形４０２との電圧位相ズレΔθv検出し、その電圧位相ズレΔθvに対しPLL制御を開始する。PLL制御時の基準電圧位相波形４０４はCos｛ω*+(Kv×Δθv)｝tとなり、設定したPLLゲインKvの応答時間でキャリア波４０１を補正する。また、基準電圧位相波形４０２、PLL制御時の基準電圧位相波形４０４とキャリア波４０１の関係性は同じである。
In 405 before the occurrence of voltage phase fluctuation, the reference voltage phase waveform 402 is Cosω * t because the voltage phase shift Δθv = 0. The voltage phase shift detection point 406, specifically, the voltage phase shift Δθv between the current voltage phase waveform 403 and the reference voltage phase waveform 402 is detected at the current voltage phase waveform point at the peak or valley of the carrier wave, and the voltage phase shift is detected. PLL control is started for Δθv. The reference voltage phase waveform 404 at the time of PLL control becomes Cos {ω * + (Kv × Δθv)} t, and the carrier wave 401 is corrected by the response time of the set PLL gain Kv. Further, the relationship between the reference voltage phase waveform 402, the reference voltage phase waveform 404 during PLL control, and the carrier wave 401 is the same.
図３のように電圧位相波形の周期が短くなる場合（図３（２）モータの回転数があがるつまり負荷が軽い場合）と長くなる場合（図３（１）モータの回転数がさがるつまり負荷が重い場合）の２パターンがあり、その変動がどのような大きさであっても、図３に示すようにズレ補正開始時から補正終了までの時間がPLLゲインKvで設定した応答時間で補正出来る。例えば、掃除機の運転モード（強運転、標準運転など）によらず電圧位相ズレが検出された時間から電圧位相ズレが検出されなくなる時間までの間隔が一定となる。
As shown in FIG. 3, when the period of the voltage phase waveform becomes short (Fig. 3 (2) when the motor rotation speed increases, that is, when the load is light) and when it becomes long (Fig. 3 (1), the motor rotation speed decreases, that is, the load). There are two patterns (when is heavy), and regardless of the magnitude of the fluctuation, the time from the start of deviation correction to the end of correction is corrected by the response time set by the PLL gain Kv, as shown in FIG. You can. For example, the interval from the time when the voltage phase shift is detected to the time when the voltage phase shift is not detected is constant regardless of the operation mode of the vacuum cleaner (strong operation, standard operation, etc.).
つまり、本発明のズレ検出部１０１とキャリア波生成部１０２により、同じ一定時間で電圧位相ズレΔθvを補正することが出来る。つまり、本発明によれば、ズレ検出部１０１で電圧位相ズレΔθvが検出された時間から電圧位相ズレΔθvが検出されなくなる時間までの間隔が電動機１０５の負荷によらず一定となると共に、正確に補正出来る。これによりメモリの大容量化を抑止し、且つあらゆる負荷状態であっても性能低下を抑止可能な低騒音の家電機器用の電動機制御装置を提供できる。
That is, the voltage phase shift Δθv can be corrected in the same fixed time by the shift detection unit 101 and the carrier wave generation unit 102 of the present invention. That is, according to the present invention, the interval from the time when the voltage phase shift Δθv is detected by the shift detection unit 101 to the time when the voltage phase shift Δθv is not detected is constant regardless of the load of the motor 105, and is accurate. Can be corrected. As a result, it is possible to provide an electric motor control device for low-noise home appliances that can suppress an increase in memory capacity and suppress performance deterioration under any load condition.
なお、上記実施例では、電動機を含む電気掃除機の例で説明したが、電気洗濯機などの他の家電製品に適用しても良い。
Although the above embodiment has been described with the example of an electric vacuum cleaner including an electric motor, it may be applied to other home appliances such as an electric washing machine.
１０ 電気掃除機、１００ マイコン、１０１ ズレ検出部、１０２ キャリア波生成部、１０３ PWM制御指令生成部、１０４ インバータ回路、１０５ 電動機、１０６ ファン、４０１ キャリア波、４０２ 基準電圧位相波形、４０３ 現在の電圧位相波形、４０４ PLL制御時の基準電圧位相波形、４０５ 電圧位相変動発生前、４０６ 電圧位相ズレ検出点
10 electric vacuum cleaner, 100 microcomputer, 101 deviation detection unit, 102 carrier wave generation unit, 103 PWM control command generation unit, 104 inverter circuit, 105 electric motor, 106 fan, 401 carrier wave, 402 reference voltage phase waveform, 403 current voltage Phase waveform, 404 Reference voltage phase waveform during PLL control, 405 Before voltage phase fluctuation occurs, 406 Voltage phase shift detection point
Claims (5)
- 同期ＰＷＭ制御する家電機器用の電動機制御装置であって
キャリア波Tcを生成するキャリア波生成部と、
入力された電圧指令vと前記キャリア波Tcに基づいて電動機を制御するＰＷＭ制御指令を生成するＰＷＭ制御指令生成部と、
前記PWM制御指令に基づいて電動機を制御する制御部と、
前記電圧指令vと予め定めた基準電圧指令との電圧位相ズレΔθvを検出するズレ検出部と、を有し、
前記キャリア波生成部は、周波数指令と同じ周波数の前記キャリア波を生成し、前記キャリア波のパルス数を１と設定できる構成であることを特徴とする、家電機器用の電動機制御装置。 A carrier wave generator that generates carrier wave Tc, which is an electric motor control device for home appliances that performs synchronous PWM control.
A PWM control command generator that generates a PWM control command that controls the motor based on the input voltage command v and the carrier wave Tc.
A control unit that controls the motor based on the PWM control command,
It has a shift detection unit that detects a voltage phase shift Δθv between the voltage command v and a predetermined reference voltage command.
The carrier wave generation unit is a motor control device for home appliances, characterized in that it generates the carrier wave having the same frequency as the frequency command and can set the number of pulses of the carrier wave to 1. - 請求項１記載の家電機器用の電動機制御装置であって、
前記電動機は、永久磁石同期モータである、家電機器用の電動機制御装置。 The electric motor control device for home electric appliances according to claim 1.
The electric motor is a permanent magnet synchronous motor, which is an electric motor control device for home electric appliances. - 請求項１記載の家電機器用の電動機制御装置であって、
前記ズレ検出部は、前記電圧指令から現在の電圧位相θvを算出し、算出された前記電圧位相と前記基準電圧指令θvbaseとの偏差を電圧位相ズレΔθvとして出力する、家電機器用の電動機制御装置。 The electric motor control device for home electric appliances according to claim 1.
The deviation detection unit calculates the current voltage phase θv from the voltage command and outputs the deviation between the calculated voltage phase and the reference voltage command θvbase as the voltage phase deviation Δθv. .. - 請求項１乃至３のいずれか１項に記載の家電機器用の電動機制御装置であって、
前記電動機は電気掃除機の電動機である家電機器用の電動機制御装置。 The motor control device for home electric appliances according to any one of claims 1 to 3.
The motor is an electric motor control device for home appliances, which is an electric motor of a vacuum cleaner. - 請求項１乃至３のいずれか１項に記載の家電機器用の電動機制御装置であって、
前記電動機は電気洗濯機の電動機である家電機器用の電動機制御装置。 The motor control device for home electric appliances according to any one of claims 1 to 3.
The motor is an electric motor control device for home appliances, which is an electric motor of an electric washing machine.
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| JP2020052057A JP2021151171A (en) | 2020-03-24 | 2020-03-24 | Electric motor control device for electric home appliances |
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|---|---|---|---|---|
| WO2016152203A1 (en) * | 2015-03-23 | 2016-09-29 | 三菱電機株式会社 | Motor control device, compressing device, and air conditioner |
| JP2020010481A (en) * | 2018-07-06 | 2020-01-16 | 日立グローバルライフソリューションズ株式会社 | Electric motor control device for home appliance device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016152203A1 (en) * | 2015-03-23 | 2016-09-29 | 三菱電機株式会社 | Motor control device, compressing device, and air conditioner |
| JP2020010481A (en) * | 2018-07-06 | 2020-01-16 | 日立グローバルライフソリューションズ株式会社 | Electric motor control device for home appliance device |
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