WO2009133700A1 - インバータ制御装置および電力変換装置 - Google Patents
インバータ制御装置および電力変換装置 Download PDFInfo
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- WO2009133700A1 WO2009133700A1 PCT/JP2009/001939 JP2009001939W WO2009133700A1 WO 2009133700 A1 WO2009133700 A1 WO 2009133700A1 JP 2009001939 W JP2009001939 W JP 2009001939W WO 2009133700 A1 WO2009133700 A1 WO 2009133700A1
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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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/0003—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53873—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with digital control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53875—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output
- H02M7/53876—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output based on synthesising a desired voltage vector via the selection of appropriate fundamental voltage vectors, and corresponding dwelling times
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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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/05—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting
Definitions
- the present invention relates to a technique for controlling an inverter that drives an AC motor.
- FIG. 1 shows a schematic configuration of a conventional inverter device that performs this constant output voltage control.
- the control system is shown in a simplified manner.
- the output current detection part (160) is arrange
- a direct current link A configuration may be used in which a shunt resistor is disposed in the portion to detect the current.
- the 1 includes an inverter control unit (200) which is a control unit.
- the inverter control unit (200) performs correction by the voltage correction unit (202) so that the output voltage is not affected by the fluctuation of the DC voltage input to the inverter unit (140).
- the DC voltage value input to the inverter unit (140) is detected by the DC voltage detection unit (210) and applied to the voltage correction unit (202).
- the voltage correction unit (202) divides the voltage command value by this DC voltage value and performs voltage correction (see, for example, the conventional examples of Patent Documents 1 and 2).
- the PWM calculation unit (203) calculates a control signal for PWM control of the inverter unit (140) based on the voltage command value from the voltage correction unit (202), and in response to the control signal, the inverter unit (140 ) Is controlled to be turned on / off.
- FIG. 1 shows a control system assuming a synchronous motor as the motor (150).
- Control of a synchronous motor is generally performed based on a motor model that is coordinate-converted on dq coordinates.
- the equation of state of the synchronous motor coordinate-transformed on d-q coordinates is shown in [Equation 1].
- the speed controller (204) and current controller (206) perform PI control, for example.
- the transfer function of the current controller (206) when performing PI control is shown in [Equation 2].
- control band of the current control system configured by the current controller (206) is set larger than the control band of the speed control system configured by the speed controller (204).
- control band of the speed control system is often set to about 10 Hz
- control band of the current control system is often set to about 200 Hz.
- Arithmetic processing that needs to be controlled at a higher speed needs to be performed without going through a speed control system or a current control system, and corresponds to the voltage correction processing by the voltage correction unit (202) in FIG.
- Equation 3 shows an output voltage (average voltage value) V ⁇ when the inverter section (140) is PWM controlled (see FIG. 2) under the DC input voltage VDC with the carrier period T and the pulse width ⁇ .
- the pulse width ⁇ is obtained by [Equation 4] so that the output voltage V ⁇ and the output command voltage V * coincide with each other regardless of the DC input voltage V DC .
- voltage correction is performed by dividing V * by V DC so that the output voltage V ⁇ does not fluctuate (here, the process of dividing by V DC is voltage correction).
- the input voltage V DC and the input current I DC of the inverter section (140), I DC is reduced if the increase is V DC, a relationship that I DC increases with decreasing V DC. That is, when performing constant output voltage control, the inverter section (140) viewed from the input side exhibits negative resistance characteristics.
- LC filter consisting of a reactor (120) and capacitor (130), a phenomenon that resonates at the resonance frequency f 0 as shown in Equation 5 (link resonance) occurs.
- Patent Document 2 for the above problem discloses a control method capable of simultaneously performing constant output voltage control and link resonance suppression control without impairing each other's advantages and obtaining the effect of each control. .
- a delay (14) corresponding to a time constant is given to the DC voltage detected by the DC voltage detector (6) to provide a voltage calculation correction circuit ( 11) to supply.
- the voltage calculation correction circuit (11) performs voltage correction based on the DC voltage value (110) given the delay (14) corresponding to the time constant. Correction is further performed by adding the fluctuation amount (102) of the DC input voltage to the correction value (106) obtained by the voltage calculation correction circuit (11) (13).
- the DC voltage value input to the voltage calculation correction circuit (11) is delayed by the delay (14) corresponding to the time constant.
- the response of the voltage calculation correction circuit (11) is delayed at the time of a sudden change in the input voltage (for example, instantaneous power failure, instantaneous voltage drop, recovery from the instantaneous voltage drop, etc.), which adversely affects the control.
- a sudden change in the input voltage for example, instantaneous power failure, instantaneous voltage drop, recovery from the instantaneous voltage drop, etc.
- the inverter unit (4) is controlled by the link resonance suppression control described above. Output voltage increases, and overcurrent occurs.
- the present invention provides an inverter control device that can simultaneously perform constant output voltage control and link resonance suppression control without impairing each other's advantages even during sudden voltage changes as described above, and obtain the respective effects. Main purpose.
- 1st invention converts the direct-current power supplied through the LC filter which consists of a reactor (120) and a capacitor
- the first invention increases the inverter output voltage supplied from the inverter (140) to the motor when the DC voltage increases in a predetermined frequency band of the DC voltage fluctuation supplied to the inverter (140).
- the inverter output voltage is decreased, and the fluctuation of the inverter output voltage due to the fluctuation of the DC voltage is suppressed outside the predetermined frequency band of the DC voltage.
- the second invention is the first invention, wherein the predetermined frequency band of the DC voltage fluctuation includes at least a resonance frequency of the LC filter.
- the predetermined frequency band of the DC voltage fluctuation is equal to or less than a frequency band of feedback control for controlling the current supplied to the AC motor (150) to follow the command value.
- the predetermined frequency band is set to be less than the frequency of voltage pulsation by the AC power source (100).
- the ratio of increasing the inverter output voltage supplied from the inverter (140) to the motor is reduced, and the ratio of decreasing the inverter output voltage with respect to the decrease amount of the DC voltage is reduced.
- the DC power supplied through the LC filter including the reactor (120) and the capacitor (130) is converted into AC power having an arbitrary frequency and an arbitrary voltage value, and supplied to the AC motor (150).
- This is a device for controlling the inverter (140).
- the sixth aspect of the invention relates to a direct current from a control calculation unit (204 to 208) that calculates an output voltage command and a DC voltage detection unit (201) that detects the voltage of DC power supplied to the inverter (140).
- a voltage value is directly input, and an output voltage correction unit (202) that corrects an output voltage command from the control calculation unit (204 to 208) based on the DC voltage value, and PWM control of the inverter (140)
- the PWM calculation unit (203) that calculates the control signal based on the output voltage command from the output voltage correction unit (202), and the fluctuation component of the DC voltage detected by the DC voltage detection unit (201)
- the component includes at least a DC component and a resonance frequency (f 0 ) component of the LC filter), and a variation component detected by the variation component detection unit (211).
- An input command to one of the compensators (206) having a control band capable of controlling the resonance frequency (f 0 ) of the LC filter among the compensators (204 to 208) in the unit is sent by the limiting unit (212).
- the input command to any compensator in the control calculation unit is a torque command or a current command.
- the limit value of the limiting unit (212) is a value smaller than the amplitude of the resonance component by the LC filter when there is no correction by the link resonance compensation amount.
- the configuration is set to.
- a ninth invention is the converter according to any one of the sixth to eighth inventions, wherein the DC power supplied to the inverter (140) converts AC power from the AC power supply (100) into DC power.
- the fluctuation component detector (211) is supplied by (110), and the fluctuation component detector (211) detects a pulsation component of the DC voltage detected by the DC voltage detector (201) by the AC power supply (100).
- a detection unit (500) is provided, and the pulsation component detected by the voltage pulsation detection unit (500) is removed from the fluctuation component.
- a tenth invention is the converter according to any one of the sixth to ninth inventions, wherein the DC power supplied to the inverter (140) converts AC power from the AC power supply (100) into DC power. (110), and the LC filter has a resonance frequency (f 0 ) that is an integer of the pulsating component by the AC power supply (100) of the voltage of the DC power supplied to the inverter (140).
- the reactor (120) and the capacitor (130) are selected so as to have frequencies other than double and frequencies in the vicinity thereof.
- the voltage abnormality detection unit (215) further detects a voltage abnormality of the DC voltage detected by the DC voltage detection unit (201).
- the limiting unit (212) adjusts the limiting range according to the detection result of the voltage abnormality detection unit (215).
- the voltage abnormality detection unit (215) further detects a voltage abnormality of the DC voltage detected by the DC voltage detection unit (201).
- the link resonance compensator (213) adjusts the link resonance compensation amount according to the detection result of the voltage abnormality detector (215).
- a thirteenth aspect of the invention includes a converter unit (110) that converts AC power from an AC power source (100) into DC power, an LC filter that includes a reactor (120) and a capacitor (130), and the converter unit (110).
- the inverter unit (140) is supplied via the LC filter, converts the DC power into AC power having an arbitrary frequency and arbitrary voltage value, and supplies the AC power to the AC motor (150), and the inverter unit It is a power converter device which has an inverter control part (200) which controls (140).
- the inverter control unit (200) is supplied from the inverter (140) to the motor when the DC voltage increases in a predetermined frequency band of the DC voltage fluctuation supplied to the inverter (140).
- the inverter output voltage is increased, the inverter output voltage is decreased when the DC voltage is decreased, and the fluctuation of the inverter output voltage due to the fluctuation of the DC voltage is suppressed outside the predetermined frequency band of the DC voltage.
- the predetermined frequency band of the DC voltage fluctuation includes at least a resonance frequency of the LC filter.
- the predetermined frequency band of the DC voltage fluctuation is equal to or less than a frequency band of feedback control for controlling the current supplied to the AC motor (150) to follow the command value. It is said.
- the sixteenth aspect of the invention is the structure of the fourteenth or fifteenth aspect, wherein the predetermined frequency band is set to be less than the frequency of voltage pulsation by the AC power supply (100).
- the inverter ( 140) in accordance with the magnitude of the fluctuation amount of the predetermined frequency band component of the DC voltage, the inverter ( 140), the ratio of increasing the inverter output voltage supplied to the motor is reduced, and the ratio of decreasing the inverter output voltage with respect to the decrease amount of the DC voltage is reduced.
- An eighteenth aspect of the invention includes a converter unit (110) that converts AC power from an AC power source (100) into DC power, an LC filter that includes a reactor (120) and a capacitor (130), and the converter unit (110).
- the inverter unit (140) is supplied via the LC filter, converts the DC power into AC power having an arbitrary frequency and arbitrary voltage value, and supplies the AC power to the AC motor (150), and the inverter unit It is a power converter device which has an inverter control part (200) which controls (140).
- the inverter control unit (200) controls the DC voltage detection unit (201) that detects the voltage of the DC power supplied to the inverter unit (140), and the control that calculates the output voltage command.
- the DC voltage value detected by the calculation unit (204 to 208) and the DC voltage detection unit (201) is directly input, and the output voltage command from the control calculation unit (204 to 208) is based on the DC voltage value.
- a fluctuation that detects a fluctuation component of the DC voltage detected by the DC voltage detector (201) (the fluctuation component does not include at least a DC component and includes a resonance frequency (f 0 ) component of the LC filter).
- a correction unit (214) that corrects an input command to one of the compensators (206) having a link resonance compensation amount limited by the limitation unit (212) is provided.
- an input command to any one of the compensators in the control calculation unit is a torque command or a current command.
- the limit value of the limiter (212) is a value smaller than the amplitude of the resonance component by the LC filter when there is no correction by the link resonance compensation amount.
- the configuration is set.
- the fluctuation component detector (211) is configured to supply the AC power source (DC voltage) detected by the DC voltage detector (201). 100), a voltage pulsation detection unit (500) for detecting a pulsation component is provided, and the pulsation component detected by the voltage pulsation detection unit (500) is removed from the fluctuation component.
- the LC filter has a resonance frequency (f 0 ) of a voltage of DC power supplied to the inverter unit (140).
- the reactor (120) and the capacitor (130) are selected so as to be other than an integral multiple of the pulsating component by the AC power supply (100) and frequencies in the vicinity thereof.
- the voltage abnormality detection unit (215) further detects a voltage abnormality of the DC voltage detected by the DC voltage detection unit (201).
- the limiting unit (212) adjusts the limiting range according to the detection result of the voltage abnormality detection unit (215).
- the voltage abnormality detection unit (215) further detects a voltage abnormality of the DC voltage detected by the DC voltage detection unit (201).
- the link resonance compensator (213) adjusts the link resonance compensation amount according to the detection result of the voltage abnormality detector (215).
- the twenty-fifth aspect of the invention is an air conditioner including the power conversion device according to any one of the eighteenth to twenty-fourth aspects of the invention.
- the link resonance suppression control is performed, and at the same time, in response to an instantaneous power failure, an instantaneous voltage drop, and a sudden voltage change such as a recovery from the instantaneous voltage drop.
- Correction processing can be performed at high speed.
- the DC voltage value from the DC voltage detection unit (201) is directly input to the voltage correction unit (202) without going through a compensator or a filter. Therefore, the voltage correction unit (202) can perform correction processing at high speed in response to a sudden voltage change such as an instantaneous power failure, an instantaneous voltage drop, or a recovery from the instantaneous voltage drop. If noise is a problem, provide a low-pass filter that passes the waveform at the time of sudden voltage change and the resonance frequency component of the LC filter, and removes noise at a frequency sufficiently higher than these components. May be.
- the link resonance compensation amount is limited to a certain range by the limiting unit (212), it is possible to prevent the link resonance compensation amount from fluctuating excessively when the voltage suddenly changes. If the link resonance compensation amount fluctuates excessively, the inverter output also fluctuates greatly due to link resonance suppression control, causing problems such as overcurrent. According to the sixth and eighteenth inventions, the link resonance suppression control Problems such as overcurrent can be prevented.
- the link resonance compensation amount limited to a certain range by the limiting unit (212) is input to the compensator (206) of the appropriate control band in the control calculation unit (204 to 208), so it is faster than necessary. It is possible to control stably without having to respond to.
- the resonance frequency component of the link resonance can be controlled by the current control system.
- the link resonance does not need to be sharply converged, so the link resonance compensation amount need not be increased. If the link resonance compensation amount is large, the original control is adversely affected especially during a sudden voltage change such as an instantaneous power failure. In the worst case, the inverter (140) is destroyed. Therefore, it is desirable that the range for limiting the link resonance compensation amount by the limiting unit (212) is set so that the fluctuation amount necessary for suppressing the link resonance can be detected, and that the limited range is as small as possible. In view of such circumstances, in the sixth and tenth aspects of the invention, the limit value of the limiter (212) is set small, so that adverse effects (variations in output voltage) due to the link resonance compensation amount can be prevented.
- the ratio of increasing the inverter output voltage supplied to the motor from the inverter (140) with respect to the amount of increase of the DC voltage as the fluctuation amount increases.
- the ratio of decreasing the inverter output voltage with respect to the decrease amount of the DC voltage it is possible to prevent an adverse effect (variation of the output voltage) due to the link resonance compensation amount.
- the frequency component of the link resonance and the frequency component of the pulsation of the DC voltage are close to each other, they can be separated (only the frequency component of the link resonance can be extracted).
- link resonance and voltage pulsation can be separated, and link resonance can be prevented from increasing due to a pulsation component of DC voltage.
- link resonance suppression control is DC voltage increase ⁇ output voltage increase, DC voltage decrease ⁇ output voltage decrease Make a move. Since this operation (especially when the DC voltage increases) acts as a disturbance, the limiting unit (212) is provided to prevent adverse effects (such as overcurrent). In the eleventh and twenty-third inventions, the limiting range by the limiting unit (212) is adjusted according to the detection result of the voltage abnormality detecting unit (215).
- the resonance suppression control operates normally. As a result, it is not necessary to set the limit range in accordance with the voltage abnormality, so that the limit range can be easily set.
- the link resonance compensation amount is adjusted according to the detection result of the voltage abnormality detection unit (215). For example, by reducing the link resonance compensation amount when the voltage is abnormal, the fluctuation of the output voltage due to resonance suppression control is suppressed, and by increasing the link resonance compensation amount during steady state, the resonance suppression control operates normally. . Accordingly, since it is not necessary to set the link resonance correction unit (213) (a constant thereof) in accordance with the voltage abnormality, the link resonance correction unit (213) (a constant thereof) can be easily set.
- FIG. 1 is a block diagram showing a schematic configuration of a conventional inverter device.
- FIG. 2 is a diagram illustrating the relationship among the DC input voltage V DC , the carrier period T, and the pulse width ⁇ .
- FIG. 3 is a block diagram illustrating a schematic configuration of the inverter device according to the first embodiment.
- FIG. 4 is a block diagram illustrating an internal configuration example of the fluctuation component detection unit in FIG. 1.
- FIG. 5 is a block diagram showing an example of the internal configuration of the fluctuation component detection unit of FIG.
- FIG. 6 is a block diagram showing a schematic configuration of the inverter device according to the second embodiment.
- FIG. 3 shows a schematic configuration of the inverter device according to the first embodiment.
- This inverter device is obtained by adding a loop of a fluctuation component detecting unit (211) ⁇ limiter (212) ⁇ link resonance compensator (213) to the components shown in FIG.
- the inverter control unit (200) increases the inverter output voltage supplied from the inverter (140) to the motor when the DC voltage increases in a predetermined frequency band of the DC voltage fluctuation supplied to the inverter (140).
- the inverter output voltage is reduced when the DC voltage is reduced, and the fluctuation of the inverter output voltage due to the fluctuation of the DC voltage is suppressed outside the predetermined frequency band of the DC voltage.
- the predetermined frequency band of the DC voltage fluctuation includes at least the resonance frequency of the LC filter.
- the predetermined frequency band of the DC voltage fluctuation is equal to or less than the frequency band of feedback control for controlling the current supplied to the AC motor (150) to follow the command value.
- the predetermined frequency band is set below the frequency of voltage pulsation by the AC power supply (100).
- the inverter control unit (200) is supplied to the motor from the inverter (140) with respect to the increase amount of the DC voltage as the variation amount increases according to the variation amount of the predetermined frequency band component of the DC voltage.
- the rate at which the inverter output voltage is increased is reduced, and the rate at which the inverter output voltage is reduced with respect to the amount of decrease in the DC voltage is reduced.
- the fluctuation component detector (211) removes the DC component of the detection voltage of the DC voltage detector (201) and passes the resonance frequency (f 0 ) Hz [Equation 5].
- the fluctuation component detection unit (211) can be realized by, for example, a high-pass filter whose cutoff frequency is set sufficiently smaller than (f 0 ) Hz.
- the limiter (212) limits the fluctuation component detected by the fluctuation component detection unit (211) to a predetermined value range.
- the range to be limited is set so that the fluctuation amount necessary for suppressing the link resonance can be detected.
- it is desirable that the range to be limited is as small as possible. Thereby, it is possible to reduce the influence on the control particularly when the voltage suddenly increases.
- the compensator (213) is designed to suppress link resonance.
- the compensator (213) is preferably selected so as not to cause a phase lag at the resonance frequency (f 0 ) Hz.
- the compensator (213) is configured by P control (proportional control). It is sufficient that the link resonance converges within one second, and is selected so that the gain of the compensator (213) does not become too large.
- the resonance frequency (f 0 ) Hz [Equation 5] of the LC filter composed of the reactor (120) and the capacitor (130) is set so as not to coincide with the frequency component of the pulsation of the DC voltage by the AC power supply (100).
- the frequency component of the DC voltage pulsation by the AC power supply (100) is 6f.
- the frequency (f 0 ) is set to a frequency other than 6fn (n is an integer) and its vicinity (for example, 6fn-5 to 6fn + 5).
- the frequency component of the DC voltage pulsation by the AC power supply (100) is 2f.
- the frequency is set to a frequency other than 2fn (n is an integer) and its vicinity (for example, 2fn-5 to 2fn + 5).
- a high-pass filter whose cutoff frequency is set sufficiently smaller than (f 0 ) Hz is mentioned, but a band that passes only frequency components in the vicinity of (f 0 ) Hz.
- a path filter may be used.
- the band pass filter is used, there is an advantage that voltage pulsation caused by the power supply frequency of the AC power supply (100) can be removed in a configuration in which the AC power supply (100) is rectified to be a DC power supply. This is useful when a small-capacitance capacitor (130) is used or when a single-phase AC power source is used for the AC power source (100).
- the limiter (212) is arranged on the output side of the fluctuation component detection unit (211). However, where the limiter (212) is between the compensation amount adjustment unit (adder (214) in FIG. 3), You may arrange. For example, the structure arrange
- the limiter (212) is installed to distinguish between a voltage abnormality (instantaneous power failure, instantaneous voltage drop, recovery from instantaneous voltage drop, etc.) and a steady state.
- a change rate (slope) of the resonance component is required. As long as the change rate (slope) is known, even if the range is limited by the limiter (212), it can be controlled without any problem.
- a voltage abnormality causes a problem that the amount of change in voltage is larger than that of link resonance.
- By limiting the amount of change in voltage it is possible to limit adverse effects (such as overcurrent) on link resonance suppression control due to voltage abnormality.
- the range limited by the limiter (212) is set to a range necessary for detecting the change rate (slope) of the resonance component necessary for link resonance suppression, which greatly affects link resonance suppression control. Without adverse effects, it is possible to limit the adverse effects of voltage abnormalities.
- the range limited by the limiter (212) is set smaller than the amplitude of the resonance component when link resonance suppression is not performed, for example.
- the PWM calculation unit (203) has a wide control band and compensates for high-frequency components at the time of voltage abnormality such as instantaneous power failure, it may become unstable.
- the compensator of the current controller (206) is selected as a compensator for correcting the input command, and the link resonance compensation amount is compared with the current command value. Correction is performed by adding.
- the DC voltage value is directly input from the DC voltage detection unit (201) to the voltage correction unit (202).
- the voltage is abnormal (instantaneous power failure, instantaneous voltage drop, recovery from instantaneous voltage drop, etc.)
- the voltage changes abruptly. For example, if the detection of the output voltage is delayed when the DC voltage increases rapidly, the voltage correction does not operate normally, the output voltage increases rapidly, an overcurrent occurs, and the inverter is stopped or destroyed.
- voltage correction can be performed at high speed, and fluctuations in output voltage, particularly overcurrent due to a sudden increase in output voltage when the DC voltage increases can be prevented.
- both link resonance suppression control and voltage correction can be achieved at the time of sudden voltage change.
- ⁇ Link resonance is compensated by a compensator (206) in the control band that can compensate for link resonance. In this way, voltage correction and separation can be performed depending on the difference in the control band, so that the link resonance suppression control and the constant output voltage control do not interfere with each other.
- the link resonance suppression control is a control that adjusts the resistance characteristics of the inverter, and is a control that moves the resistance characteristics closer to positive and in the positive direction. What is required in the link resonance suppression control is a change (ratio) of the voltage, and even if it is limited by the limiter (212), it operates without any problem.
- the voltage abnormality is a phenomenon in which the DC voltage suddenly changes.
- the link resonance compensation amount fluctuates excessively when the voltage suddenly changes. I can prevent it. If the link resonance compensation amount fluctuates excessively, the inverter output also fluctuates greatly due to link resonance suppression control, and problems such as overcurrent occur, but according to this embodiment, overcurrent etc. due to such link resonance suppression control You can prevent problems.
- Fig. 4 shows a circuit with few DC voltage pulsations caused by the AC power supply (100), such as full-wave rectification of the three-phase AC power supply (100) by the converter unit (110) or large capacity of the capacitor (130). It is an example of a structure of the fluctuation
- the cutoff frequency of the LPF low pass filter
- the cutoff frequency of the LPF is set to be smaller than the resonance frequency of the link resonance.
- the low frequency component is obtained by the LPF, and the high frequency component including the link resonance component is extracted by subtracting the low frequency component from the DC voltage detection value.
- FIG. 5 shows a fluctuation component detection unit (in a circuit with a large DC voltage pulsation caused by the AC power supply (100), such as when the AC power supply (100) is a single-phase AC power supply or when the capacitor (130) has a small capacity. 211).
- the cutoff frequency of the LPF low pass filter
- the PLL of the pulsation component extraction unit (500) is set so as to detect the phase of the pulsation component by the AC power supply (100).
- the amplitude detection unit of the pulsation component extraction unit (500) detects the amplitude of the pulsation component by the AC power supply (100).
- the low frequency component is obtained by the LPF
- the pulsation component by the AC power source (100) is obtained by the PLL and the amplitude detection unit of the pulsation extraction unit (500), and these components are subtracted from the detected DC voltage value.
- the link resonance component is extracted.
- the configuration of FIG. 5 is useful when, for example, the frequency of the resonance component of the link resonance is close to the frequency of the pulsation component by the AC power supply (100), and separation by a filter is difficult (phase delay, etc.).
- the configuration may be such that the phase and amplitude of the pulsation component are extracted using Fourier transform.
- FIG. 6 shows a schematic configuration of the inverter device according to the second embodiment.
- processing for changing the limit value of the limiter (212) according to the detection result of the voltage abnormality detection unit (215) and the voltage abnormality detection unit (215) is added to the inverter device of FIG. ing.
- the limit range by the limiter (212) is adjusted according to the detection result of the voltage abnormality detection unit (215). For example, by reducing the limit range when the voltage is abnormal, the fluctuation of the output voltage due to the resonance suppression control is suppressed, and by increasing the limit range at the steady state, the resonance suppression control operates normally. As a result, it is not necessary to set the limit range in accordance with the voltage abnormality, so that the limit range can be easily set.
- the link resonance compensation amount by the link resonance compensator (213) may be adjusted according to the detection result of the voltage abnormality detection unit (215). For example, by reducing the link resonance compensation amount when the voltage is abnormal, the fluctuation of the output voltage due to resonance suppression control is suppressed, and by increasing the link resonance compensation amount during steady state, the resonance suppression control operates normally. . Thereby, since it is not necessary to set the link resonance compensator (213) (constant thereof) in accordance with the voltage abnormality, the link resonance compensator (213) (constant) can be easily set.
- the inverter control device according to the present invention and the power conversion device including the same can be applied to, for example, an air conditioner.
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Abstract
Description
Pin=VDCIDC
となる。
Pin=Pout=P(一定)…[ただしインバータ部(140)での損失を無視]
となり、入力電流はIDC=P/VDCとなる。
第1の実施形態によるインバータ装置の概略構成を図3に示す。このインバータ装置は、図1に示した構成要素に対して、変動成分検出部(211)→リミッタ(212)→リンク共振補償器(213)というループを追加したものである。
変動成分検出部(211)は、直流電圧検出部(201)の検出電圧の直流成分を除去し、共振周波数(f0)Hz[数5]を通過させるものである。前記変動成分検出部(211)は、例えば、遮断周波数を(f0)Hzよりも十分小さく設定した高域通過フィルタにより実現できる。
リミッタ(212)は、変動成分検出部(211)により検出した変動成分を所定値の範囲に制限するものである。制限する範囲は、リンク共振を抑制するのに必要な変動量が検出できるように設定する。また、制限する範囲はできるだけ小さくすることが望ましい。これにより、特に電圧急増時における制御への影響を減らすことができる。
補償器(213)は、リンク共振を抑制できるように設計する。補償器(213)は共振周波数(f0)Hzにおいて位相遅れが生じないように選定することが望ましく、例えばP制御(比例制御)により構成する。リンク共振は、1秒以内に収束すれば十分であり、補償器(213)のゲインが大きくなりすぎないように選定する。
・リアクトル(120):L=4.5mH
・コンデンサ(130):C=1000μF
・LCフィルタの共振周波数(f0):75Hz
・速度制御器(204)の制御帯域:10Hz
・電流制御器(206)の制御帯域:200Hz
・PWMキャリア周波数:5kHz
この構成で共振周波数(f0)=75Hzの成分を制御するためには、電流制御器(206)やPWM算出部(203)などの、制御帯域が75Hzよりも大きな演算部に対し、リンク共振補償量を入力すればよい。しかしながらPWM算出部(203)では制御帯域が広く、瞬時停電などの電圧異常時の高周波成分に対しても補償してしまうため、不安定となる可能性がある。ここでは、電流制御系が必要十分な制御帯域を有しているので、入力指令を補正する補償器として電流制御器(206)の補償器を選定し、電流指令値に対してリンク共振補償量を加算することで補正を行う。
第2の実施形態によるインバータ装置の概略構成を図6に示す。このインバータ装置では、図3のインバータ装置に対して、電圧異常検出部(215)と、電圧異常検出部(215)の検出結果に応じてリミッタ(212)の制限値を変更する処理を追加している。
110…コンバータ部
120…リアクトル
130…コンデンサ
140…インバータ部
150…モータ
160…出力電流検出部
200…ベクトル制御部
201…直流電圧検出部
202…電圧補正部
203…PWM算出部
204…速度制御器
205…電流ベクトル制御器
206…電流制御器
207…座標変換器
208…座標変換器
215…電圧異常検出部
500…脈動成分抽出部
Claims (25)
- リアクトル(120)とコンデンサ(130)からなるLCフィルタを介して供給される直流電力を任意の周波数、任意の電圧値の交流電力に変換して交流電動機(150)に供給するインバータ(140)を制御する装置であって、
前記インバータ(140)に供給される直流電圧変動の所定周波数帯域において、直流電圧の増加時に前記インバータ(140)からモータに供給されるインバータ出力電圧を増加し、直流電圧の減少時に前記インバータ出力電圧を減少させると共に、直流電圧の前記所定周波数帯域以外においては、直流電圧の変動によるインバータ出力電圧の変動を抑制する
ことを特徴とするインバータ制御装置。 - 請求項1において、
前記直流電圧変動の所定周波数帯域は、少なくとも前記LCフィルタの共振周波数を含む
ことを特徴とするインバータ制御装置。 - 請求項2において、
前記直流電圧変動の所定周波数帯域は、交流電動機(150)に供給する電流が指令値に追従するように制御するフィードバック制御の周波数帯域以下である
ことを特徴とするインバータ制御装置。 - 請求項2または3において、
所定周波数帯域は、交流電源(100)による電圧脈動の周波数未満に設定されいる
ことを特徴とするインバータ制御装置。 - 請求項1~4のいずれか1つにおいて、
前記直流電圧の所定周波数帯域成分の変動量の大きさに応じて、変動量が大きいほど直流電圧の増加量に対する前記インバータ(140)からモータに供給されるインバータ出力電圧を増加する割合を小さくすると共に、直流電圧の減少量に対する前記インバータ出力電圧を減少させる割合を小さくした
ことを特徴とするインバータ制御装置。 - リアクトル(120)とコンデンサ(130)からなるLCフィルタを介して供給される直流電力を任意の周波数、任意の電圧値の交流電力に変換して交流電動機(150)に供給するインバータ(140)を制御する装置であって、
出力電圧指令を算出する制御演算部(204~208)と、
前記インバータ(140)に供給される直流電力の電圧を検出する直流電圧検出部(201)からの直流電圧値が直接入力され、当該直流電圧値に基づいて前記制御演算部(204~208)からの出力電圧指令を補正する出力電圧補正部(202)と、
前記インバータ(140)をPWM制御するための制御信号を前記出力電圧補正部(202)からの出力電圧指令に基づいて算出するPWM算出部(203)と、
前記直流電圧検出部(201)により検出される直流電圧の変動成分(当該変動成分は少なくとも直流成分を含まずかつ前記LCフィルタの共振周波数(f0)成分を含む)を検出する変動成分検出部(211)と、
前記変動成分検出部(211)により検出された変動成分に基づいて、前記LCフィルタによるリンク共振を抑制するための補償量(リンク共振補償量)を算出するリンク共振補償部(213)と、
前記リンク共振補償量を所定範囲に制限する制限部(212)と、
前記制御演算部内の補償器(204~208)のうち前記LCフィルタの共振周波数(f0)を制御可能な制御帯域を有するいずれかの補償器(206)への入力指令を、前記制限部(212)により制限されたリンク共振補償量により補正する補正部(214)とを備えている
ことを特徴とするインバータ制御装置。 - 請求項6において、
前記制御演算部内のいずれかの補償器への入力指令はトルク指令または電流指令である
ことを特徴とするインバータ制御装置。 - 請求項6または7において、
前記制限部(212)の制限値は、前記リンク共振補償量による補正がない場合における前記LCフィルタによる共振成分の振幅に比べて小さい値に設定されている
ことを特徴とするインバータ制御装置。 - 請求項6~8のいずれか1つにおいて、
前記インバータ(140)に供給される直流電力は、交流電源(100)からの交流電力を直流電力に変換するコンバータ(110)により供給されるものであり、
前記変動成分検出部(211)は、前記直流電圧検出部(201)により検出される直流電圧の前記交流電源(100)による脈動成分を検出する電圧脈動検出部(500)を備え、前記電圧脈動検出部(500)により検出された脈動成分を前記変動成分から除去する
ことを特徴とするインバータ制御装置。 - 請求項6~9のいずれか1つにおいて、
前記インバータ(140)に供給される直流電力は、交流電源(100)からの交流電力を直流電力に変換するコンバータ(110)により供給されるものであり、
前記LCフィルタは、その共振周波数(f0)が、前記インバータ(140)に供給される直流電力の電圧の前記交流電源(100)による脈動成分の整数倍およびそれらの近傍の周波数以外になるようにリアクトル(120)およびコンデンサ(130)が選定されている
ことを特徴とするインバータ制御装置。 - 請求項6~10のいずれか1つにおいて、
前記直流電圧検出部(201)により検出される直流電圧の電圧異常を検出する電圧異常検出部(215)をさらに備え、
前記制限部(212)は、前記電圧異常検出部(215)の検出結果に応じて前記制限範囲を調整する
ことを特徴とするインバータ制御装置。 - 請求項6~10のいずれか1つにおいて、
前記直流電圧検出部(201)により検出される直流電圧の電圧異常を検出する電圧異常検出部(215)をさらに備え、
前記リンク共振補償部(213)は、前記電圧異常検出部(215)の検出結果に応じて前記リンク共振補償量を調整する
ことを特徴とするインバータ制御装置。 - 交流電源(100)からの交流電力を直流電力に変換するコンバータ部(110)と、
リアクトル(120)とコンデンサ(130)からなるLCフィルタと、
前記コンバータ部(110)からの直流電力が前記LCフィルタを介して供給され、当該直流電力を任意の周波数、任意の電圧値の交流電力に変換して交流電動機(150)に供給するインバータ部(140)と、
前記インバータ部(140)を制御するインバータ制御部(200)と
を有する電力変換装置であって、
前記インバータ制御部(200)は、前記インバータ(140)に供給される直流電圧変動の所定周波数帯域において、直流電圧の増加時に前記インバータ(140)からモータに供給されるインバータ出力電圧を増加し、直流電圧の減少時に前記インバータ出力電圧を減少させると共に、直流電圧の前記所定周波数帯域以外においては、直流電圧の変動によるインバータ出力電圧の変動を抑制する
ことを特徴とする電力変換装置。 - 請求項13において、
前記直流電圧変動の所定周波数帯域は、少なくとも前記LCフィルタの共振周波数を含む
ことを特徴とする電力変換装置。 - 請求項14において、
前記直流電圧変動の所定周波数帯域は、交流電動機(150)に供給する電流が指令値に追従するように制御するフィードバック制御の周波数帯域以下である
ことを特徴とする電力変換装置。 - 請求項14まはた15において、
所定周波数帯域は、交流電源(100)による電圧脈動の周波数未満に設定されいる
ことを特徴とする電力変換装置。 - 請求項13~16のいずれか1つにおいて、
前記直流電圧の所定周波数帯域成分の変動量の大きさに応じて、変動量が大きいほど直流電圧の増加量に対する前記インバータ(140)からモータに供給されるインバータ出力電圧を増加する割合を小さくすると共に、直流電圧の減少量に対する前記インバータ出力電圧を減少させる割合を小さくした
ことを特徴とする電力変換装置。 - 交流電源(100)からの交流電力を直流電力に変換するコンバータ部(110)と、
リアクトル(120)とコンデンサ(130)からなるLCフィルタと、
前記コンバータ部(110)からの直流電力が前記LCフィルタを介して供給され、当該直流電力を任意の周波数、任意の電圧値の交流電力に変換して交流電動機(150)に供給するインバータ部(140)と、
前記インバータ部(140)を制御するインバータ制御部(200)と
を有する電力変換装置であって、
前記インバータ制御部(200)は、
前記インバータ部(140)に供給される直流電力の電圧を検出する直流電圧検出部(201)と、
出力電圧指令を算出する制御演算部(204~208)と、
前記直流電圧検出部(201)によって検出された直流電圧値が直接入力され、当該直流電圧値に基づいて前記制御演算部(204~208)からの出力電圧指令を補正する出力電圧補正部(202)と、
前記インバータ部(140)をPWM制御するための制御信号を前記出力電圧補正部(202)からの出力電圧指令に基づいて算出するPWM算出部(203)と、
前記直流電圧検出部(201)によって検出された直流電圧の変動成分(当該変動成分は少なくとも直流成分を含まずかつ前記LCフィルタの共振周波数(f0)成分を含む)を検出する変動成分検出部(211)と、
前記変動成分検出部(211)により検出された変動成分に基づいて、前記LCフィルタによるリンク共振を抑制するための補償量(リンク共振補償量)を算出するリンク共振補償部(213)と、
前記リンク共振補償量を所定範囲に制限する制限部(212)と、
前記制御演算部内の補償器(204~208)のうち前記LCフィルタの共振周波数(f0)を制御可能な制御帯域を有するいずれかの補償器(206)への入力指令を、前記制限部(212)により制限されたリンク共振補償量により補正する補正部(214)とを備えている
ことを特徴とする電力変換装置。 - 請求項18において、
前記制御演算部内のいずれかの補償器への入力指令はトルク指令または電流指令である
ことを特徴とする電力変換装置。 - 請求項18または19において、
前記制限部(212)の制限値は、前記リンク共振補償量による補正がない場合における前記LCフィルタによる共振成分の振幅に比べて小さい値に設定されている
ことを特徴とする電力変換装置。 - 請求項18~20のいずれか1つにおいて、
前記変動成分検出部(211)は、前記直流電圧検出部(201)により検出される直流電圧の前記交流電源(100)による脈動成分を検出する電圧脈動検出部(500)を備え、前記電圧脈動検出部(500)により検出された脈動成分を前記変動成分から除去する
ことを特徴とする電力変換装置。 - 請求項18~21のいずれか1つにおいて、
前記LCフィルタは、その共振周波数(f0)が、前記インバータ部(140)に供給される直流電力の電圧の前記交流電源(100)による脈動成分の整数倍およびそれらの近傍の周波数以外になるようにリアクトル(120)およびコンデンサ(130)が選定されている
ことを特徴とする電力変換装置。 - 請求項18~22のいずれか1つにおいて、
前記直流電圧検出部(201)により検出される直流電圧の電圧異常を検出する電圧異常検出部(215)をさらに備え、
前記制限部(212)は、前記電圧異常検出部(215)の検出結果に応じて前記制限範囲を調整する
ことを特徴とする電力変換装置。 - 請求項18~22のいずれか1つにおいて、
前記直流電圧検出部(201)により検出される直流電圧の電圧異常を検出する電圧異常検出部(215)をさらに備え、
前記リンク共振補償部(213)は、前記電圧異常検出部(215)の検出結果に応じて前記リンク共振補償量を調整する
ことを特徴とする電力変換装置。 - 請求項18~24のいずれか1つに記載の電力変換装置を備えている
ことを特徴とする空気調和機。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010510039A JP5504155B2 (ja) | 2008-04-28 | 2009-04-28 | インバータ制御装置および電力変換装置 |
KR1020107026374A KR101244588B1 (ko) | 2008-04-28 | 2009-04-28 | 인버터 제어장치 및 전력변환장치 |
US12/989,799 US8736220B2 (en) | 2008-04-28 | 2009-04-28 | Inverter control device and power conversion device |
EP09738637.9A EP2284986A4 (en) | 2008-04-28 | 2009-04-28 | Inverter control device and power conversion device |
AU2009241150A AU2009241150B2 (en) | 2008-04-28 | 2009-04-28 | Inverter control device and power conversion device |
CN200980114829.1A CN102017395B (zh) | 2008-04-28 | 2009-04-28 | 直交流转换器控制装置及功率转换装置 |
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PCT/JP2009/001939 WO2009133700A1 (ja) | 2008-04-28 | 2009-04-28 | インバータ制御装置および電力変換装置 |
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US (1) | US8736220B2 (ja) |
EP (1) | EP2284986A4 (ja) |
JP (2) | JP5504155B2 (ja) |
KR (1) | KR101244588B1 (ja) |
CN (1) | CN102017395B (ja) |
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Cited By (21)
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JP2011147306A (ja) * | 2010-01-18 | 2011-07-28 | Mitsubishi Electric Corp | 電動機の制御回路、及びその制御回路を用いた空気調和機 |
CN102804581A (zh) * | 2010-04-12 | 2012-11-28 | 东芝三菱电机产业系统株式会社 | 电力转换装置 |
US20130026834A1 (en) * | 2010-04-12 | 2013-01-31 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Power conversion device |
US9444287B2 (en) * | 2010-04-12 | 2016-09-13 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Power conversion device with ripple filtering |
KR101437202B1 (ko) * | 2010-05-06 | 2014-09-03 | 엘에스산전 주식회사 | 복전시 인버터의 전압보상지령 보정방법 및 그 방법을 이용한 인버터 |
CN103190068A (zh) * | 2010-11-05 | 2013-07-03 | 三菱电机株式会社 | 功率变换装置 |
JP2012165629A (ja) * | 2011-01-18 | 2012-08-30 | Daikin Ind Ltd | 電力変換装置 |
RU2543502C1 (ru) * | 2011-01-18 | 2015-03-10 | Дайкин Индастриз, Лтд. | Устройство преобразования мощности |
JP2013121234A (ja) * | 2011-12-07 | 2013-06-17 | Mitsubishi Electric Corp | 電力変換装置 |
JP2013126257A (ja) * | 2011-12-13 | 2013-06-24 | Daikin Ind Ltd | 電力変換装置 |
JP2014068498A (ja) * | 2012-09-27 | 2014-04-17 | Daikin Ind Ltd | 電力変換装置の制御方法 |
US9401656B2 (en) | 2012-09-27 | 2016-07-26 | Daikin Industries, Ltd. | Method of controlling power conversion apparatus |
WO2014050441A1 (ja) * | 2012-09-27 | 2014-04-03 | ダイキン工業株式会社 | 電力変換装置の制御方法 |
JP6471827B1 (ja) * | 2017-10-30 | 2019-02-20 | ダイキン工業株式会社 | 電力変換装置 |
WO2019088131A1 (ja) * | 2017-10-30 | 2019-05-09 | ダイキン工業株式会社 | 電力変換装置 |
JP2019083682A (ja) * | 2017-10-30 | 2019-05-30 | ダイキン工業株式会社 | 電力変換装置 |
WO2019239601A1 (ja) * | 2018-06-15 | 2019-12-19 | 日立ジョンソンコントロールズ空調株式会社 | モータ駆動装置および冷凍機器 |
JP2020178382A (ja) * | 2019-04-15 | 2020-10-29 | 三菱電機株式会社 | 電力変換装置およびこれを用いた電動化車両 |
WO2022075424A1 (ja) * | 2020-10-08 | 2022-04-14 | ダイキン工業株式会社 | 電力変換装置 |
JP2022062703A (ja) * | 2020-10-08 | 2022-04-20 | ダイキン工業株式会社 | 電力変換装置 |
WO2023157045A1 (ja) * | 2022-02-15 | 2023-08-24 | 三菱電機株式会社 | 電力変換装置および空気調和機 |
Also Published As
Publication number | Publication date |
---|---|
EP2284986A4 (en) | 2017-05-03 |
US8736220B2 (en) | 2014-05-27 |
KR101244588B1 (ko) | 2013-04-01 |
CN102017395B (zh) | 2014-08-06 |
EP2284986A1 (en) | 2011-02-16 |
JP2013034386A (ja) | 2013-02-14 |
JPWO2009133700A1 (ja) | 2011-08-25 |
KR20100134790A (ko) | 2010-12-23 |
CN102017395A (zh) | 2011-04-13 |
JP5504155B2 (ja) | 2014-05-28 |
US20110043150A1 (en) | 2011-02-24 |
AU2009241150A1 (en) | 2009-11-05 |
AU2009241150B2 (en) | 2013-10-24 |
JP5751242B2 (ja) | 2015-07-22 |
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