WO2017134871A1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
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- WO2017134871A1 WO2017134871A1 PCT/JP2016/081466 JP2016081466W WO2017134871A1 WO 2017134871 A1 WO2017134871 A1 WO 2017134871A1 JP 2016081466 W JP2016081466 W JP 2016081466W WO 2017134871 A1 WO2017134871 A1 WO 2017134871A1
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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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Definitions
- Embodiment of this invention is related with the power converter device which carries out full-wave rectification and boosts the alternating voltage.
- a power converter that feedback-controls switching of the converter so that the input current I to the converter has a full-wave rectified waveform (current control).
- the current referred to as power supply current
- the converter for example, a boost chopper type converter is used.
- the output voltage Vdc of the converter rises when the power supply voltage fluctuates in the increasing direction or the load is lightened rapidly.
- the power converter adjusts the switching on / off duty of the converter in a decreasing direction to lower the boosting rate of the converter.
- the on / off duty decreases and the switching on period becomes too short, the input current I to the converter cannot be made into a full-wave rectified waveform without distortion. In other words, there is a lower control limit value that the switching ON / OFF duty cannot be further reduced. Therefore, even if the on / off duty is adjusted to decrease when the power supply voltage increases, the full-wave rectified waveform of the input current I to the converter is distorted when the on / off duty reaches this lower limit. It will occur. When distortion occurs in the full-wave rectified waveform of the input current I, distortion occurs in the sine wave of the power supply current flowing through the power supply line. Eventually, harmonics cannot be suppressed.
- An object of an embodiment of the present invention is to provide a power conversion device that can maintain an input current to a converter in a full-wave rectified waveform without distortion, thereby reliably suppressing harmonics.
- the power conversion device is a full-wave rectifier circuit that full-wave rectifies the voltage of the AC power supply, a converter that boosts the output voltage of the full-wave rectifier circuit by switching, and the output voltage of the converter becomes a target value.
- the switching on / off duty of the converter is controlled so that the input current to the converter becomes a full-wave rectified waveform, and the target value is increased when the on / off duty falls to a predetermined value. Control means for correcting the direction.
- the block diagram which shows the structure of one Embodiment.
- the figure which shows the waveform of the input electric current I when the difference of the target value Vdcref and the peak value of the power supply voltage Vac in one Embodiment is large.
- the flowchart which shows the control which the correction
- a full wave rectifier circuit 3 is connected to an AC power source 1 via a noise filter 2, and a converter 4 is connected to an output terminal of the full wave rectifier circuit 3.
- the noise filter 2 removes noise superimposed on the voltage Vac of the AC power supply 1 (referred to as power supply voltage) as the converter 4 is switched.
- the full-wave rectifier circuit 3 full-wave rectifies the power supply voltage Vac by four diodes 3a to 3d connected in a bridge.
- the converter 4 connected to the output terminal of the full-wave rectifier circuit 3 is, for example, a step-up chopper type converter, and a switching element that short-circuits the DC power source after full-wave rectification via the reactor 5 that stores energy (For example, MOSFET) 6, a protective diode 6 a connected in reverse parallel to the switching element 6, a diode 7 that sends the energy of the reactor 5 to the load side and prevents a reverse flow of current from the load side, and an output of the diode 7
- a smoothing capacitor 8 for smoothing the voltage is included, and the switching element 6 is repeatedly turned on and off (switching) in accordance with a drive signal (PWM signal) supplied from a converter control unit 30 (to be described later).
- V is boosted to a predetermined level (target value Vdcref described later).
- a current sensor 9 that detects an input current (reactor current) I to the converter 4 is disposed on the energization line between the switching element 6 and the negative output terminal of the full-wave rectifier circuit 3.
- the inverter 10 is connected to the output terminal of the converter 4.
- the inverter 10 switches the output voltage (voltage of the smoothing capacitor 8) Vdc of the converter 4 to a predetermined frequency F (and the frequency F) by switching according to a drive signal (PWM signal) supplied from an inverter control unit 50 described later.
- a drive signal PWM signal supplied from an inverter control unit 50 described later.
- the speed (rotation speed) of the brushless DC motor 11 changes according to the frequency (output frequency) F of the output voltage of the inverter 10.
- the brushless DC motor 11 is a compressor motor that drives the compressor 12, and is housed in a sealed case of the compressor 12.
- the compressor 12 sucks in the refrigerant, compresses it, and discharges it.
- a condenser (heat radiator) 13, an expansion valve 14, and an evaporator (heat absorber) 15 are sequentially connected to the compressor 12 by piping.
- This piping connection constitutes a refrigeration cycle in which the refrigerant discharged from the compressor 12 flows to the evaporator 15 through the condenser 13 and the expansion valve 14 and the refrigerant flowing out of the evaporator 15 is returned to the compressor 12 as indicated by the arrows in the figure.
- the condenser 13 releases heat, and the evaporator 15 absorbs heat. Due to this heat dissipation and heat absorption, the object and space can be heated and cooled as required.
- a current sensor 16 is disposed in the energization line between the inverter 10 and the brushless DC motor 11.
- the controller 20 includes a converter control unit 30, an inverter control unit 50, a target value setting unit 60, a selection unit 61, and a correction unit 62.
- Converter control unit 30 adjusts converter 4 so that output voltage Vdc of converter 4 becomes target value Vdcref (voltage control) and input current I to converter 4 becomes a full-wave rectified waveform (current control). Switching is performed by pulse width modulation (PWM) control, and includes a subtractor 31, a PI controller 32, a multiplier 33, a phase synchronization circuit (PLL) 34, a subtractor 37, a PI controller 38, a PWM signal generator 39, A carrier generation unit 40 is included.
- PWM pulse width modulation
- the subtractor 31 obtains a deviation ⁇ Vdc between the converter output voltage Vdc and the target value Vdcref.
- the PI controller 32 obtains a current command value Imaxref for setting the value (maximum value) of the input current I to the converter 4 by proportional / integral calculation using the deviation ⁇ Vdc obtained by the subtractor 31 as an input.
- the phase synchronization circuit unit 34 generates a reference current value Ir having a full-wave rectified waveform that is synchronized with the current of the AC power supply 1.
- the multiplying unit 33 multiplies the current command value Imaxref obtained by the PI controller 32 by the reference current value Ir issued from the phase synchronization circuit unit 34, thereby obtaining the current command value Imaxref as a current (power supply current) of the AC power supply 1. Is converted into a current command value Iref for harmonic suppression synchronized with the above.
- the current command value Iref has a waveform obtained by amplifying the reference current value Ir by the current command value Imaxref.
- the subtraction unit 37 obtains a deviation ⁇ I between the current command value Iref obtained by the multiplication unit 33 and the input current (detected current of the current sensor 9) I to the converter 4.
- the PI controller 38 obtains a voltage command value Vref for pulse width modulation by proportional / integral calculation using the deviation ⁇ I obtained by the subtracting section 37 as an input.
- the carrier generator 40 generates a triangular wave carrier signal voltage Vc having a predetermined frequency.
- the PWM signal generation unit 39 performs pulse width modulation (voltage comparison) on the carrier signal voltage Vc generated from the carrier generation unit 40 with the voltage command value Vref obtained by the PI controller 38, whereby the switching signal 6 for the converter 4 is A pulsed drive signal (PWM signal) for switching is generated. That is, the on / off duty of switching of the switching element 6 of the converter 4 (the ratio of the on period in the reference period of switching) is determined according to the level of the voltage command value Vref.
- there is a delay time due to the characteristics of the element until the switching element 6 of the converter 4 is completely turned on after receiving the ON driving signal, and the switching element 6 receives the OFF driving signal and is completely turned off. There is also a delay time.
- the PWM signal generation unit 39 determines that the on period of the drive signal (PWM signal) obtained by voltage comparison (pulse width modulation) between the carrier signal voltage Vc and the voltage command value Vref is the lower limit value of the on / off duty. If the ON period is shorter than the ON period, the ON period drive signal, which is the lower limit value of the ON / OFF duty, is replaced with the drive signal obtained by the voltage comparison and output.
- the subtraction unit 31 and the PI controller 32 function as a voltage control system.
- the multiplication unit 33, the phase synchronization circuit unit 34, the subtraction unit 37, and the PI controller 38 function as a current control system.
- the inverter control unit 50 estimates the speed (rotational speed) of the brushless DC motor 11 from the detected current (motor current) of the current sensor 16, and the estimated speed becomes a target speed corresponding to the magnitude of the load (refrigeration load).
- the switching of the inverter 10 is PWM controlled.
- the target value setting unit 60 sets the minimum output voltage Vdc of the converter 4 necessary for the output voltage of the inverter 10 to obtain the target speed as the target value Vdcref.
- the selection unit 61 compares the target value Vdcref set by the target value setting unit 60 with the target value Vdcref corrected by the correction unit 62, and selects and outputs the higher target value Vdcref.
- the correction unit 62 corrects the target value Vdcref in the upward direction by a predetermined value ⁇ Vdcref when the switching on / off duty of the converter 4 falls to a predetermined value, and the on / off duty is higher than the predetermined value. Corrects the target value Vdcref by a constant value ⁇ Vdcref in the downward direction.
- the predetermined value is, for example, a lower limit value for controlling on / off duty of switching of the converter 4 described above.
- the operation of the correction unit 62 will be specifically described.
- the correction unit 62 holds the voltage command value Vref corresponding to the lower limit value (predetermined value) of the on / off duty as the set value Vrefx in advance.
- amendment part 62 captures the change of the power supply voltage Vac from the reference electric current value Ir emitted from the phase-synchronization circuit part 34 of the converter control part 30, and the period of the half period of the captured change or more than that period
- the minimum voltage command value Vref (that is, the minimum on / off duty value) in the period is sequentially updated and stored, and the stored minimum voltage command value Vref and the set value Vrefx are compared.
- the correction unit 62 changes the target value Vdcref to a constant value ⁇ Vdcref in the next control cycle (half cycle of the power supply voltage Vac or a predetermined cycle or longer). Only correct in the upward direction.
- the correction unit 62 corrects the target value Vdcref in the downward direction by a constant value ⁇ Vdcref in the next control cycle. This correction by the correction unit 62 is also referred to as Minimum-Duty control.
- the above-described noise filter 2, full-wave rectifier circuit 3, converter 4, current sensor 9, inverter 10, current sensor 16, and controller 20 constitute a power conversion device of this embodiment.
- the voltage command value Vref does not decrease to the set value Vrefx.
- the input current I to the converter 4 is a full-wave rectified waveform without distortion.
- input current I to converter 4 has a smooth full-wave rectification waveform that changes with a small slope in accordance with the rise and fall of power supply voltage Vac and has a maximum value near the peak value of power supply voltage Vac.
- the voltage command value Vref increases at the rise and fall of the power supply voltage Vac, and reaches the minimum value Vrefmin at the timing when the power supply voltage Vac reaches its peak value.
- the voltage command value is set to cope with the increase in the output voltage Vdc accompanying the increase in the power supply voltage Vac.
- Vref is controlled in the downward direction, and the on / off duty of switching of the converter 4 is reduced. If the correction unit 62 is not corrected, the voltage command value Vref reaches the set value Vrefx before the power supply voltage Vac reaches the peak value (the ON / OFF duty reaches the control lower limit value). Subsequent distortion occurs in the full-wave rectified waveform of the input current I to the converter 4.
- the correction unit 62 executes the control shown in the flowchart of FIG. 5 so that these problems do not occur. That is, the correction unit 62 sequentially compares the current voltage command value Vref and the minimum value Vrefmin of the voltage command value Vref in the half cycle (control cycle) of the power supply voltage Vac (step S1). When the detected voltage command value Vref is less than the minimum value Vrefmin (YES in step S1), the correction unit 62 updates and stores the voltage command value Vref at that time as a new minimum value Vrefmin (step S2). And the correction
- the correction unit 62 compares the minimum value Vrefmin of the voltage command value Vref with the set value Vrefx (step S4).
- the correction unit 62 corrects the target value Vdcref by a constant value ⁇ Vdcref in the upward direction (step S5).
- the correction unit 62 corrects the target value Vdcref by a constant value ⁇ Vdcref in the downward direction (step S6).
- the correction unit 62 clears the minimum value Vrefmin that has been updated and stored in the half cycle (step S7), and returns to the process of step S1.
- the minimum value Vrefmin of the voltage command value Vref is initially lowered to the set value Vrefx and the converter Although the distortion occurs in the full-wave rectified waveform of the input current I to 4, the target value Vdcref is corrected in the upward direction by a constant value ⁇ Vdcref every half cycle of the power supply voltage Vac.
- the minimum value Vrefmin of the voltage command value Vref comes to be slightly away from the set value Vrefx, and the input current I to the converter 4 can be maintained in a full-wave rectified waveform without distortion.
- the power supply current becomes a sine wave without distortion, and the harmonic component contained in the power supply current can be reliably suppressed.
- the voltage command value Vref is sufficiently higher than the set value Vrefx.
- the full-wave rectified waveform of the input current I to the converter 4 is not distorted, but since the deviation ⁇ Vdc between the output voltage Vdc and the target value Vdcref is large, the current command value Imaxref becomes high and the converter 4 The pressurization rate rises more than necessary. In this state, the power loss in the converter 4 increases.
- the target value Vdcref is corrected in the downward direction by a constant value ⁇ Vdcref every half cycle of the power supply voltage Vac.
- the minimum value Vrefmin of the voltage command value Vref in the control cycle reaches a state larger than the set value Vrefx
- the target value Vdcref in the next control cycle is increased by a constant value ⁇ Vdcref. It is corrected.
- the minimum value Vrefmin of the voltage command value Vref is within the vicinity of the set value Vrefx.
- the step-up rate of the converter 4 does not increase more than necessary, and an increase in power loss in the converter 4 can be prevented.
- the current sensor 9 is arranged in the energization line between the switching element 6 and the negative output terminal of the full-wave rectifier circuit 3, but the current sensor 9 is connected to the positive output terminal of the full-wave rectifier circuit 3. And a current-carrying line between the positive-side input terminal of the converter 4.
- the target value Vdcref is corrected in the upward direction by a constant value ⁇ Vdcref in the next control cycle.
- the minimum value Vrefmin of the on / off duty in the period of the control cycle increases to a predetermined value (set value Vrefx)
- the target value Vdcref is corrected in the downward direction by a constant value ⁇ Vdcref in the next control cycle. It is not necessary to monitor and correct the decrease of the on / off duty with reference to the period of the control cycle.
- the target value Vdcref is corrected in the upward direction by a constant value ⁇ Vdcref. May be.
- the lower limit value of the on / off duty is set as a predetermined value (set value Vrefx), but a value slightly higher than the lower limit value of the on / off duty may be set as the predetermined value. Further, a lower limit value of on / off duty or a value slightly higher than the lower limit value is determined as a first predetermined value (set value Vrefx1), and a second predetermined value (set value Vrefx2) slightly higher than the first predetermined value.
- the target value Vdcref may be corrected in the downward direction by the constant value ⁇ Vdcref in the next predetermined control cycle.
- the control hysteresis characteristic is ensured for the increase and decrease of the target value Vdcref, so that frequent fluctuation of the target value Vdcref can be prevented.
- the target value Vdcref may be corrected in the upward direction by a constant value ⁇ Vdcref.
- the power conversion device can supply power to the compressor motor that drives the compressor.
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Abstract
Description
図1に示すように、交流電源1にノイズフィルタ2を介して全波整流回路3が接続され、その全波整流回路3の出力端にコンバータ4が接続されている。ノイズフィルタ2は、コンバータ4のスイッチングに伴って交流電源1の電圧(電源電圧という)Vacに重畳するノイズを除去する。全波整流回路3は、ブリッジ接続した4つのダイオード3a~3dにより、電源電圧Vacを全波整流する。
すなわち、補正部62は、現時点の電圧指令値Vrefと、電源電圧Vacの半周期(制御周期)の期間における電圧指令値Vrefの最小値Vrefminとを、逐次に比較する(ステップS1)。検出した電圧指令値Vrefが最小値Vrefmin未満の場合(ステップS1のYES)、補正部62は、そのときの電圧指令値Vrefを新たな最小値Vrefminとして更新記憶する(ステップS2)。そして、補正部62は、電源電圧Vacの半周期(制御周期)が経過したかどうか判定し(ステップS3)、経過していなければ(ステップS3のNO)、ステップS1,S2の処理を繰り返す。
Claims (8)
- 交流電源の電圧を全波整流する全波整流回路と、
前記全波整流回路の出力電圧をスイッチングにより昇圧するコンバータと、
前記コンバータの出力電圧が目標値となるようにかつ前記コンバータへの入力電流が全波整流波形となるように前記コンバータのスイッチングのオン,オフデューティを制御するとともに、そのオン,オフデューティが所定値まで下降した場合に前記目標値を上昇方向に補正する制御部と、
を備えることを特徴とする電力変換装置。 - 前記制御部は、所定の制御周期の期間において、前記オン,オフデューティの最小値が前記所定値より高い場合は前記目標値を下降方向に補正する
ことを特徴とする請求項1に記載の電力変換装置。 - 前記制御部は、
前記コンバータの出力電圧Vdcと目標値Vdcrefとの偏差ΔVdcを入力とする比例・積分演算により、前記コンバータへの入力電流Iの値(最大値)を設定するための電流指令値Imaxrefを求め、
前記交流電源の電流に同期する全波整流波形の基準電流値Irに前記電流指令値Imaxrefを乗算することにより、その電流指令値Imaxrefを前記交流電源の電流に同期する電流指令値Irefに変換し、
前記電流指令値Irefと前記コンバータへの入力電流Iとの偏差ΔIを入力とする比例・積分演算により、パルス幅変調用の電圧指令値Vrefを求め、
所定周波数の三角波状のキャリア信号電圧Vcを前記電圧指令値Vrefでパルス幅変調することにより、前記コンバータに対するスイッチング用の駆動信号を生成し、
前記電圧指令値Vrefが前記所定値に対応する設定値Vrefxまで下降した場合に、前記目標値Vdcrefを上昇方向に補正する
ことを請求項1に記載の電力変換装置。 - 前記制御部は、所定の制御周期の期間において、前記電圧指令値Vrefの最小値が前記設定値Vrefxより高い場合は前記目標値Vdcrefを下降方向に補正する
ことを請求項3に記載の電力変換装置。 - 前記所定値は、前記オン,オフデューティの制御上の下限値またはその下限値より高い値であることを特徴とする請求項1ないし4のいずれか一項に記載の電力変換装置。
- 前記所定値は、前記スイッチングのオン,オフデューティの制御上の下限値またはその下限値より高い第1所定値、およびその第1所定値より高い第2所定値であり、
前記制御部は、前記オン,オフデューティが前記第1所定値まで下降した場合に前記目標値を上昇方向に補正し、前記制御周期の期間における前記オン,オフデューティの最小値が前記第2所定値より高い場合に前記目標値を下降方向に補正する
ことを特徴とする請求項2に記載の電力変換装置。 - 交流電源の電圧を全波整流する全波整流回路と、
前記全波整流回路の出力電圧をスイッチングにより昇圧するコンバータと、
前記コンバータの出力電圧が目標値となるようにかつ前記コンバータへの入力電流が全波整流波形となるように前記コンバータのスイッチングのオン,オフデューティを制御するとともに、そのオン,オフデューティが第1所定値まで下降した場合に前記目標値を上昇方向に補正し、所定の制御周期の期間における前記オン,オフデューティの最小値が前記第1所定値より高い第2所定値より高い場合は前記目標値を下降方向に補正する
ことを特徴とする電力変換装置。 - 前記所定の制御周期は、前記交流電源の電圧の半周期の期間又はそれ以上の期間であることを特徴とする請求項2,4,6,7のいずれか一項に記載の電力変換装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES16889354T ES2868603T3 (es) | 2016-02-02 | 2016-10-24 | Dispositivo de conversión de potencia |
JP2017565396A JP6533839B2 (ja) | 2016-02-02 | 2016-10-24 | 電力変換装置 |
EP16889354.3A EP3413451B1 (en) | 2016-02-02 | 2016-10-24 | Power conversion device |
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EP (1) | EP3413451B1 (ja) |
JP (1) | JP6533839B2 (ja) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2019198160A1 (ja) * | 2018-04-10 | 2019-10-17 | 日産自動車株式会社 | 昇圧コンバータの制御方法、及び、制御装置 |
US20210260954A1 (en) * | 2018-09-28 | 2021-08-26 | Carrier Corporation | Transportation refrigeration unit with ac generator charging of prime mover energy storage device |
WO2022190540A1 (ja) * | 2021-03-11 | 2022-09-15 | オムロン株式会社 | 電力変換装置、制御装置および制御方法 |
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JPH0378469A (ja) * | 1989-08-17 | 1991-04-03 | Fujitsu Ltd | 電源装置 |
JP2002084743A (ja) * | 2000-09-04 | 2002-03-22 | Shindengen Electric Mfg Co Ltd | スイッチング電源装置 |
JP3988724B2 (ja) * | 2002-01-08 | 2007-10-10 | サンケン電気株式会社 | 力率改善コンバータ及びその制御方法 |
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JPH0732603B2 (ja) * | 1989-06-20 | 1995-04-10 | サンケン電気株式会社 | 直流電源装置 |
WO2003047080A1 (fr) * | 2001-11-29 | 2003-06-05 | Sanken Electric Co., Ltd. | Alimentation a decoupage |
US7148664B2 (en) * | 2004-06-28 | 2006-12-12 | International Rectifier Corporation | High frequency partial boost power factor correction control circuit and method |
JP5104947B2 (ja) * | 2009-03-24 | 2012-12-19 | 株式会社村田製作所 | スイッチング電源装置 |
JP5958431B2 (ja) * | 2013-07-19 | 2016-08-02 | 株式会社村田製作所 | スイッチング電源装置 |
-
2016
- 2016-10-24 ES ES16889354T patent/ES2868603T3/es active Active
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JPH0378469A (ja) * | 1989-08-17 | 1991-04-03 | Fujitsu Ltd | 電源装置 |
JP2002084743A (ja) * | 2000-09-04 | 2002-03-22 | Shindengen Electric Mfg Co Ltd | スイッチング電源装置 |
JP3988724B2 (ja) * | 2002-01-08 | 2007-10-10 | サンケン電気株式会社 | 力率改善コンバータ及びその制御方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2019198160A1 (ja) * | 2018-04-10 | 2019-10-17 | 日産自動車株式会社 | 昇圧コンバータの制御方法、及び、制御装置 |
JPWO2019198160A1 (ja) * | 2018-04-10 | 2021-03-18 | 日産自動車株式会社 | 昇圧コンバータの制御方法、及び、制御装置 |
JP7056730B2 (ja) | 2018-04-10 | 2022-04-19 | 日産自動車株式会社 | 昇圧コンバータの制御方法、及び、制御装置 |
US20210260954A1 (en) * | 2018-09-28 | 2021-08-26 | Carrier Corporation | Transportation refrigeration unit with ac generator charging of prime mover energy storage device |
WO2022190540A1 (ja) * | 2021-03-11 | 2022-09-15 | オムロン株式会社 | 電力変換装置、制御装置および制御方法 |
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EP3413451A4 (en) | 2019-09-11 |
EP3413451B1 (en) | 2021-01-20 |
JPWO2017134871A1 (ja) | 2018-08-16 |
EP3413451A1 (en) | 2018-12-12 |
JP6533839B2 (ja) | 2019-06-19 |
ES2868603T3 (es) | 2021-10-21 |
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