WO2011121653A1 - コンバータ装置,モータ駆動用モジュール、及び冷凍機器 - Google Patents
コンバータ装置,モータ駆動用モジュール、及び冷凍機器 Download PDFInfo
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- WO2011121653A1 WO2011121653A1 PCT/JP2010/002340 JP2010002340W WO2011121653A1 WO 2011121653 A1 WO2011121653 A1 WO 2011121653A1 JP 2010002340 W JP2010002340 W JP 2010002340W WO 2011121653 A1 WO2011121653 A1 WO 2011121653A1
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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
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with 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
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4216—Arrangements for improving power factor of AC input operating from a three-phase input voltage
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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
- the present invention relates to a converter device that converts three-phase alternating current into direct current, a motor drive module, and a refrigeration equipment.
- the converter device that converts three-phase alternating current into direct current is used in, for example, an inverter device for driving a motor, a battery charge / discharge device, and a refrigeration apparatus (such as an air conditioner and a refrigerator).
- a refrigeration apparatus such as an air conditioner and a refrigerator.
- IEC International Electrotechnical Commission
- IEC61000-3-12 phase current ⁇ 16A
- IEC61000-3-12 (16A ⁇ phase current ⁇ 75A)
- a three-phase PWM converter composed of six semiconductor power elements can be used to reduce the harmonics of the input current and stabilize the output DC voltage, but many semiconductor power elements and complex control means are required. Therefore, there is a problem that the cost of the apparatus is greatly increased.
- consumer and industrial devices such as air conditioners, general-purpose inverters, and electric vehicle charging devices place an emphasis on product cost, and therefore, inexpensive harmonic countermeasures are desired.
- Patent Document 1 requires a large AC reactor in order to clear the harmonic regulations, and the size and cost of the apparatus cannot be avoided.
- the heat loss of the resistance of the AC reactor has a square relationship with the input current, there is a concern about heat generation of the reactor and a reduction in the efficiency of the device during high load operation.
- Patent Document 2 it is possible to reduce the size of the AC reactor by increasing the number of on / off operations of both energization type switches.
- the rectifier diode since the rectifier diode must use a fast recovery type, the cost is reduced. And the conventional diode rectifier circuit cannot be used.
- an object of the present invention is to provide a converter device, a motor drive module, and a refrigeration device that comply with harmonic regulations without using a large AC reactor or a high-speed diode.
- the present invention provides a converter device for converting three-phase alternating current into direct current, Connected to a three-phase diode bridge, a plurality of series-connected smoothing capacitors provided between a DC output side of the three-phase diode bridge and a DC load, and positive and negative terminals on the DC side of the three-phase diode bridge, respectively
- Two recirculating diodes a reactor inserted between the midpoint of the two freewheeling diodes and the midpoint of the smoothing capacitor, and between the AC side of the three-phase diode bridge and the midpoint of the two freewheeling diodes.
- a controller for controlling the three both energization switches Both the three energization switches are controlled.
- the present invention provides a converter device,
- the on / off control of both the three energization switches is based on the voltage signal detected by the voltage detection means for detecting the voltage between the AC side of the three-phase diode bridge and the negative terminal of the smoothing capacitor. It is characterized in that at least one information of phase, power supply phase sequence, power supply frequency, and power supply voltage is estimated, and the on / off control signal of both the energization switches is adjusted based on the estimated information.
- the present invention provides a converter device, It is characterized in that at least one information of a power supply phase, a power supply phase sequence, a power supply frequency, and a power supply voltage is estimated by comparing the voltage signal detected by the voltage detection means with a predetermined voltage value.
- the present invention provides a converter device,
- the voltage predetermined value is: Using the amplitude value or average value of the voltage signal detected by the voltage detection means, the voltage signal is adjusted to about 1 ⁇ 4 to 3 of the amplitude value of the voltage signal.
- the present invention provides a converter device,
- the on / off control of both of the three energization switches is performed by estimating the power supply phase using the voltage signal detected by the voltage detection means and modulating the estimated phase using a preset modulation wave table.
- a wave is created, and an on / off control signal for both of the three energization switches is generated by comparison with a carrier wave.
- the present invention provides a converter device,
- the on / off control of the three current-carrying switches uses the load information of the DC load to adjust the magnitude and front / rear position of the modulated wave, and the on / off control signals of the three current-carrying switches according to the DC load fluctuation It is characterized by adjusting.
- the present invention provides a converter device, A general-purpose rectifier diode is used as the diode constituting the three-phase diode bridge.
- a general-purpose diode is used as the freewheeling diode.
- the present invention provides a converter device,
- the size of the reactor inserted between the midpoint of the two freewheeling diodes and the midpoint of the smoothing capacitor is a capacity capable of suppressing an excessive turn-on current of both the three energization switches. is there.
- the present invention provides a converter device,
- the current capacity of a reactor inserted between the midpoint of the two freewheeling diodes and the midpoint of the smoothing capacitor is set to about 1/4 or less of the AC reactor.
- the present invention provides a motor driving module that converts a three-phase alternating current and supplies the motor to a motor, and includes a three-phase diode bridge, a direct current output side of the three-phase diode bridge, and a direct current load.
- the present invention provides a refrigeration apparatus for converting a three-phase alternating current and supplying it to a motor, a three-phase diode bridge, a series provided between a direct current output side of the three-phase diode bridge and a direct current load.
- a plurality of smoothing capacitors connected to each other, two free-wheeling diodes connected to the positive and negative terminals on the DC side of the three-phase diode bridge, a midpoint of the two free-wheeling diodes, and a midpoint of the smoothing capacitor
- a reactor inserted between the three-phase diode bridge AC side and the middle point of the two free-wheeling diodes, and a controller for controlling the three current-carrying switches. Both the three energization switches are controlled.
- the harmonic component of the power supply current is reduced, and by means of a reactor inserted between the midpoint of the two freewheeling diodes and the midpoint of the smoothing capacitor, the three energization switches Suppresses the reverse recovery current of the three-phase diode bridge at the time of turn-on, and realizes that both three current-carrying switches suppress the overvoltage at the time of turn-off by two free-wheeling diodes.
- FIG. 1 is a configuration diagram of a converter device according to a first embodiment of the present invention.
- This converter device includes three AC reactors 2 connected to a three-phase AC power source 1, a three-phase diode bridge 3 composed of six diodes, and a plurality of series-connected multiples provided on the DC side of the three-phase diode bridge 3. Inserted between the smoothing capacitor 4, the two free-wheeling diodes 6 and 7 connected to the positive and negative terminals on the DC side of the three-phase diode bridge 3, and the midpoint of the free-wheeling diodes 6 and 7 and the midpoint of the smoothing capacitor.
- a reactor 5 three bidirectional energizing switches 10 connected between the AC input side of the three-phase diode bridge 3 and the midpoint of the freewheeling diodes 6 and 7, and a controller for controlling the three bidirectional energizing switches 10 11 and a power supply phase detection means 9.
- the three bidirectional energization switches 10 can be constituted by a single-phase diode bridge 12 and one semiconductor power element 13 (MOSFET or IGBT element).
- FIG. 2 shows an example of the configuration of the semiconductor power element 13 constituting the bidirectional energization switch 10. As shown in FIG. 2, the drive terminals of these semiconductor power elements are connected to a drive circuit 15 via an insulating means 14 such as a photocoupler or a transformer in order to achieve electrical insulation from the controller 11.
- an insulating means 14 such as a photocoupler or a transformer
- the controller 11 processes the power supply phase from the power supply phase detection means 9 and the load information from the load 8 by using a semiconductor arithmetic element such as a microcomputer (DSP) or a DSP (digital signal processor). An on / off control signal for the semiconductor power element is generated.
- a semiconductor arithmetic element such as a microcomputer (DSP) or a DSP (digital signal processor).
- FIG. 3 is a functional block configuration diagram of the controller 11, and each function is realized by a microcomputer program. Specifically, a three-phase modulation wave is created from the detected power supply phase ⁇ s using a preset modulation wave table 16. Further, the front and rear positions and magnitudes of the modulated waves are adjusted from the load information using a preset adjustment amount table 19.
- FIG. 4 shows an example of the power supply voltage waveforms 21, 22, and 23 for each phase and the three-phase modulated wave table waveforms 24, 25, and 26 for each phase preset in the microcomputer internal memory. These modulation wave tables are created in advance by simulations and actual machine experiments under predetermined conditions.
- the adjustment amount table 19 set in advance is used to obtain the phase adjustment amount ⁇ s_adj and the gain Km, and the front and rear positions and magnitudes of the modulated waves are adjusted.
- the PWM controller 18 outputs a PWM (Pulse Width Modulation) control signal by comparing the adjusted modulated waves Mu, Mv, Mw and the carrier wave (triangular wave or sawtooth wave), and the both energized power elements 13 is controlled on / off.
- PWM Pulse Width Modulation
- FIGS. 7 and 8 show an actual current measurement current waveform 27 that flows through both energization switches of the circuits shown in FIGS. 5 and 6. As shown in FIG. 8, it was confirmed that the turn-on current of both energization switches can be suppressed by adding a reactor.
- both energization switches when both energization switches are turned off, the current flowing through the reactor is returned to the smoothing capacitor via the freewheeling diode, so that the voltage applied to both energization switches can be suppressed to a DC voltage or less and energy loss can be reduced.
- the inductance value may be obtained from the following equation.
- L is the inductance value of the reactor
- Ed is the DC voltage value
- Trr is the diode recovery time of the three-phase diode bridge
- Isw is the rated current of both energizing switches.
- the current capacity may be about 1/4 or less of the input current of the device.
- the turn-on current suppression circuit of the present invention can be realized at low cost. Therefore, when the present invention is used, a converter that reduces harmonics even if a general-purpose rectifier diode with a small reactor and a long reverse recovery time is used. A device can be realized. Therefore, the product cost and volume can be reduced, and the reliability and efficiency can be improved.
- FIG. 9 shows the configuration of the motor drive apparatus according to the second embodiment of the present invention.
- the converter part that converts direct current from three-phase alternating current is the same as that shown in FIG.
- a motor 102 is driven using an inverter 100 and an inverter controller 101 on the DC output side of the converter circuit.
- the motor load information of the inverter controller 101 is transmitted to the controller 111 via means such as communication.
- the controller 111 controls the bidirectional energization switch 10 by adjusting the magnitude and position of the modulated wave using this load information.
- Such a configuration may improve the degree of freedom of product design and manufacture because the converter circuit and the inverter circuit may be manufactured and installed separately.
- the converter portion can be added to an existing inverter module or motor drive board to reduce power harmonics, product development and manufacturing costs can be reduced.
- FIG. 10 shows the detected voltage waveforms 31, 32, 33 and the power supply phase waveform 30 of each phase obtained from the voltage dividing resistor 109. From these waveforms, the voltage signal obtained from the voltage dividing resistor 109 is compared with the voltage level value of about 1/4 to 1/3 of the voltage amplitude value, and the rising edge of the obtained signal is 0 °, 120 of the power phase. It was found that they were almost coincident with ° and 240 °. Therefore, the power supply phase can be estimated from these voltage signals. Also, the power supply frequency can be calculated from the time difference between adjacent rising edges. Further, the order of the three-phase power supply phase can be determined from the order of the rising edges.
- an error ⁇ fs of the power supply frequency is calculated using a PLL (Phase-locked loop) process, and the error of the power supply frequency fs0 inside the microcomputer is automatically corrected.
- each voltage detection signal Vun, Vvn, Vwn is detected by using an A / D converter 40, a rising edge is created by comparison with the voltage level value, and the rising edge detection time point is detected.
- An error between the power phase corresponding value (U phase: 0 °, V phase: 120 °, W phase: 240 °) and the power phase calculated inside the microcomputer is obtained, and the frequency error ⁇ fs is calculated using the PI controller 44. .
- This frequency error is added to the power supply frequency initial setting value fs0, and the internal power supply phase is calculated by integration processing.
- the phase order and frequency information of the power source are not set in advance, it is necessary to determine from the time difference and order of rising edges corresponding to each phase before the phase detection process.
- the voltage level value here may be set to a fixed value in advance according to the power supply voltage (about 1 ⁇ 4 to 3 of the interphase voltage amplitude value). In order to reduce the influence of power supply voltage fluctuation, If it is adjusted online according to the magnitude of the power supply voltage estimated from the voltage signal obtained from the voltage dividing resistor 109, the phase detection accuracy can be further improved.
- the power supply phase detection error is small even if there is a power supply frequency fluctuation or a microcomputer oscillator error.
- the power supply phase can be calculated by the same process even if voltage signals for two phases or one phase are used.
- the phase sequence of the three-phase power source cannot be detected.
- power supply information necessary for control can be detected with only a voltage dividing resistor, so that circuit cost can be reduced and control performance can be improved. Further, when the present invention is applied to a global product, the power supply information (power supply frequency, phase sequence, power supply voltage, etc.) of each region does not need to be preset, so that the versatility and reliability of the apparatus are improved.
- phase of the voltage signal detected from the voltage dividing resistor 109 can be detected by comparing with the voltage level value using an external analog comparator (comparator) instead of the microcomputer internal A / D.
- an external analog comparator comparative
- an inexpensive low-function microcomputer can be used.
- FIG. 12 shows the configuration of the motor drive device according to the third embodiment of the present invention.
- the converter part that converts direct current from three-phase alternating current is the same as that shown in FIG.
- a motor 102 is driven using an inverter 100 and an inverter controller 101 on the DC output side of the converter circuit.
- the converter / inverter controller 105 uses one microcomputer. Using the voltage dividing resistors 109 and 120, the shunt resistor 121 and the amplifier 122, the power supply phase, the DC voltage and the output current of the inverter are detected and processed by the converter / inverter controller 105 to control the converter and the inverter.
- Such a configuration can reduce the cost and volume of the entire product because the control microcomputer and board can be shared. Further, since the control information of the inverter and the converter can be shared, the overall control performance can be improved.
- FIG. 13 is an external view of the motor driving module 200 according to the fourth embodiment of the present invention, and shows one form of the final product.
- the module 200 is a motor driving module in which a semiconductor element 202 is mounted as a power module on the control unit substrate 201.
- the voltage / current detection circuit and the controller described in the above-described embodiment are mounted on the control unit substrate 201.
- the Miniaturization is achieved by modularization, and the device cost can be reduced.
- the module means “standardized structural unit” and is composed of separable hardware / software components.
- it is preferable to comprise on the same board
- the overall cost of the product and the volume can be reduced, so that the versatility and convenience of the motor drive device using the module of this embodiment can be improved.
- FIG. 14 is a configuration diagram of a refrigeration apparatus such as an air conditioner or a refrigerator that drives a compressor motor using the motor driving module according to the fifth embodiment of the present invention.
- the refrigeration equipment 300 is a device that harmonizes temperatures, and includes heat exchangers 301 and 302, fans 303 and 304, a compressor 305, a pipe 306, and a motor driving device 307.
- the compressor motor 308 is arranged inside the compressor 305 using a permanent magnet synchronous motor or a three-phase induction motor.
- the motor driving device 307 converts the alternating current power into direct current and provides it to the motor driving inverter to drive the motor.
- the converter / inverter module of the fourth embodiment By using the converter / inverter module of the fourth embodiment, even if a small AC reactor and a general-purpose diode are used, the harmonics of the power supply current can be reduced and the power factor can be reduced at a low cost. Can be achieved.
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Abstract
Description
三相ダイオードブリッジと、該三相ダイオードブリッジの直流出力側と直流負荷の間に設ける直列に接続された複数の平滑コンデンサと、前記三相ダイオードブリッジの直流側の正と負の端子にそれぞれ接続する二つの環流ダイオードと、該二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルと、前記三相ダイオードブリッジの交流側と前記二つの環流ダイオードの中点の間に設ける三つの両方通電スイッチと、該三つの両方通電スイッチを制御する制御器を備えて、
前記三つの両方通電スイッチを制御することを特徴とするものである。
前記三つの両方通電スイッチのオン・オフ制御は、前記三相ダイオードブリッジの交流側と前記平滑コンデンサの負の端子の間の電圧を検出する電圧検出手段で検出された電圧信号に基づいて、電源位相,電源相順,電源周波数,電源電圧の少なくとも一つの情報を推定し、推定した情報より、前記両方通電スイッチのオン・オフ制御信号を調整することを特徴とするものである。
前記電圧検出手段で検出された電圧信号と電圧所定値との比較により、電源位相,電源相順,電源周波数,電源電圧の少なくとも一つの情報を推定することを特徴とするものである。
前記電圧所定値は、
前記電圧検出手段で検出された電圧信号の振幅値もしくは平均値を用いて、前記電圧信号の振幅値の約1/4~1/3に調整されることを特徴とするものである。
前記三つの両方通電スイッチのオン・オフ制御は、前記電圧検出手段で検出された電圧信号を用いて、電源位相を推定して、推定した位相から、あらかじめ設定された変調波テーブルを用いて変調波を作成し、キャリア波との比較により、前記三つの両方通電スイッチのオン・オフ制御信号を生成することを特徴とするものである。
前記三つの両方通電スイッチのオン・オフ制御は、直流負荷の負荷情報を用いて、前記変調波の大きさと前後位置を調整し、直流負荷変動に従って前記三つの両方通電スイッチのオン・オフ制御信号を調整することを特徴とするものである。
前記三相ダイオードブリッジを構成するダイオードは、汎用整流ダイオードを使用することを特徴とするものである。
前記二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルの大きさは、前記三つの両方通電スイッチの過大なターンオン電流を抑制できる容量であることを特徴とするものである。
前記二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルのインダクタンス値(L)は、
前記三相ダイオードブリッジの直流側電圧(Ed)と、三相ダイオードブリッジを構成するダイオードのリカバリ時間(Trr)と、前記両方通電スイッチの定格電流(Isw)を用いて、式
L=Ed×Trr/Isw
より算出することを特徴とするものである。
前記二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルの電流容量は、前記交流リアクトルの約1/4以下に設定することを特徴とするものである。
前記三つの両方通電スイッチを制御することを特徴とするものである。
〔式1〕
L=(Ed/2)×Trr/(Isw/2)=Ed×Trr/Isw
ここで、Lはリアクトルのインダクタンス値、Edは直流電圧値、Trrは三相ダイオードブリッジのダイオードリカバリ時間、Iswは両方通電スイッチの定格電流である。
L=500×5/10=250[μH]
程度で良い。即ち、挿入リアクトルのインダクタンス値は、交流リアクトルより十分小さく設定しても良い(1/20以下)。
2 三相交流リアクトル
3 三相ダイオードブリッジ
4 平滑コンデンサ
5 リアクトル
6,7 環流ダイオード
8 直流負荷
9 電源位相検出手段
10 双方向通電スイッチ
11,111 制御器
12 単相ダイオードブリッジ
13 半導体パワー素子
14 絶縁手段
15 駆動回路
16 変調波テーブル
17 変調波調整器
18 PWM制御器
19 調整量テーブル
20 キャリア波発生器
21 U相電源電圧波形
22 V相電源電圧波形
23 W相電源電圧波形
24 U相に対応する変調波形
25 V相に対応する変調波形
26 W相に対応する変調波形
27 通電電流波形
30 電源位相波形
31 U相に対応する検出電圧波形
32 V相に対応する検出電圧波形
33 W相に対応する検出電圧波形
40 A/D変換器
41 比較器
42 立ち上がりエッジ検出器
43 位相誤差演算器
44 PI制御器
45 位相演算器
100 インバータ
101 インバータ制御器
102 モータ
105 コンバータ・インバータ制御器
109 分圧抵抗
120 直流電圧検出用分圧抵抗
121 シャント抵抗
122 増幅器
200 モジュール
201 制御部基板
202 半導体素子
203 マイコン
300 冷凍機器
301,302 熱交換器
303,304 ファン
305 圧縮機
306 配管
307 モータ駆動装置
308 圧縮機用モータ
Claims (13)
- 三相交流を直流に変換するコンバータ装置において、
前記三相交流を供給する電源に接続される三つの交流リアクトルと、
三相ダイオードブリッジと、
該三相ダイオードブリッジの直流出力側と直流負荷の間に設ける直列に接続された複数の平滑コンデンサと、
前記三相ダイオードブリッジの直流側の正と負の端子にそれぞれ接続する二つの環流ダイオードと、
該二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルと、
前記三相ダイオードブリッジの交流側と前記二つの環流ダイオードの中点の間に設ける三つの両方通電スイッチと、
該三つの両方通電スイッチを制御する制御器を備えて、前記三つの両方通電スイッチを制御することを特徴とするコンバータ装置。 - 請求項1記載のコンバータ装置において、
前記三つの両方通電スイッチのオン・オフ制御は、
前記三相ダイオードブリッジの交流側と前記平滑コンデンサの負の端子の間の電圧を検出する電圧検出手段で検出された電圧信号に基づいて、
電源位相,電源相順,電源周波数,電源電圧の少なくとも一つの情報を推定し、推定した情報より、
前記両方通電スイッチのオン・オフ制御信号を調整することを特徴とするコンバータ装置。 - 請求項1、又は請求項2のコンバータ装置において、
前記電圧検出手段で検出された電圧信号と電圧所定値との比較により、電源位相,電源相順,電源周波数,電源電圧の少なくとも一つの情報を推定することを特徴とするコンバータ装置。 - 請求項3のコンバータ装置において、
前記電圧所定値は、
前記電圧検出手段で検出された電圧信号の振幅値もしくは平均値を用いて、前記電圧信号の振幅値の約1/4~1/3に調整されることを特徴とするコンバータ装置。 - 請求項1、又は請求項2のコンバータ装置において、
前記三つの両方通電スイッチのオン・オフ制御は、
前記電圧検出手段で検出された電圧信号を用いて、電源位相を推定して、推定した位相から、あらかじめ設定された変調波テーブルを用いて変調波を作成し、キャリア波との比較により、
前記三つの両方通電スイッチのオン・オフ制御信号を生成することを特徴とするコンバータ装置。 - 請求項5のコンバータ装置において、
前記三つの両方通電スイッチのオン・オフ制御は、
直流負荷の負荷情報を用いて、前記変調波の大きさと前後位置を調整し、
直流負荷変動に従って前記三つの両方通電スイッチのオン・オフ制御信号を調整することを特徴とするコンバータ装置。 - 請求項1記載のコンバータ装置において、
前記三相ダイオードブリッジを構成するダイオードは、
汎用整流ダイオードを使用することを特徴とするコンバータ装置。 - 請求項1記載のコンバータ装置において、
前記環流ダイオードは、
汎用ダイオードを使用することを特徴とするコンバータ装置。 - 請求項1記載のコンバータ装置において、
前記二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルの大きさは、
前記三つの両方通電スイッチの過大なターンオン電流を抑制できる容量であることを特徴とするコンバータ装置。 - 請求項1、又は請求項9記載のコンバータ装置において、
前記二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルのインダクタンス値(L)は、
前記三相ダイオードブリッジの直流側電圧(Ed)と、三相ダイオードブリッジを構成するダイオードのリカバリ時間(Trr)と、前記両方通電スイッチの定格電流(Isw)を用いて、式
L=Ed×Trr/Isw
より算出することを特徴とするコンバータ装置。 - 請求項1記載のコンバータ装置において、
前記二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルの電流容量は、
前記交流リアクトルの約1/4以下に設定することを特徴とするコンバータ装置。 - 三相交流を変換してモータに供給するモータ駆動用モジュールにおいて、
三相ダイオードブリッジと、
該三相ダイオードブリッジの直流出力側と直流負荷の間に設ける直列に接続された複数の平滑コンデンサと、
前記三相ダイオードブリッジの直流側の正と負の端子にそれぞれ接続する二つの環流ダイオードと、
該二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルと、
前記三相ダイオードブリッジの交流側と前記二つの環流ダイオードの中点の間に設ける三つの両方通電スイッチと、
該三つの両方通電スイッチを制御する制御器を備えて、
前記三つの両方通電スイッチを制御することを特徴とするモータ駆動用モジュール。 - 三相交流を変換してモータに供給する冷凍機器において、
三相ダイオードブリッジと、
該三相ダイオードブリッジの直流出力側と直流負荷の間に設ける直列に接続された複数の平滑コンデンサと、
前記三相ダイオードブリッジの直流側の正と負の端子にそれぞれ接続する二つの環流ダイオードと、
該二つの環流ダイオードの中点と前記平滑コンデンサの中点の間に挿入するリアクトルと、
前記三相ダイオードブリッジの交流側と前記二つの環流ダイオードの中点の間に設ける三つの両方通電スイッチと、
該三つの両方通電スイッチを制御する制御器を備えて、
前記三つの両方通電スイッチを制御することを特徴とする冷凍機。
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EP10848836.2A EP2555405B1 (en) | 2010-03-31 | 2010-03-31 | Converter, motor driving module, and refrigerating apparatus |
CN201080065024.5A CN102783007B (zh) | 2010-03-31 | 2010-03-31 | 转换器装置、马达驱动用模块以及冷冻机 |
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JP2011546473A JP5518097B2 (ja) | 2010-03-31 | 2010-03-31 | コンバータ装置,モータ駆動用モジュール、及び冷凍機器 |
US13/580,446 US8847534B2 (en) | 2010-03-31 | 2010-03-31 | Converter, motor driving module, and refrigerating apparatus |
PCT/JP2010/002340 WO2011121653A1 (ja) | 2010-03-31 | 2010-03-31 | コンバータ装置,モータ駆動用モジュール、及び冷凍機器 |
TW099147361A TWI424665B (zh) | 2010-03-31 | 2010-12-31 | Inverter device, motor drive module and refrigeration equipment |
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JP5505449B2 (ja) * | 2012-04-06 | 2014-05-28 | 株式会社デンソー | 多相回転機の制御装置 |
JP6157599B2 (ja) * | 2013-04-12 | 2017-07-05 | 三菱電機株式会社 | 電力変換装置、およびそれを備えたモータ駆動装置、およびそれを備えた送風機、圧縮機、およびそれらを備えた空気調和機、冷蔵庫、ならびに冷凍機 |
JP2015208143A (ja) * | 2014-04-22 | 2015-11-19 | 日立オートモティブシステムズ株式会社 | 電動機駆動装置 |
KR102253205B1 (ko) | 2016-10-05 | 2021-05-18 | 존슨 컨트롤스 테크놀러지 컴퍼니 | 이차 권선을 갖는 가변속 구동 장치 |
TWI634748B (zh) | 2017-12-05 | 2018-09-01 | 財團法人工業技術研究院 | 量測系統及其鎖相迴路暨量測方法 |
WO2019239469A1 (ja) * | 2018-06-11 | 2019-12-19 | 三菱電機株式会社 | コンバータ |
WO2020070849A1 (ja) * | 2018-10-04 | 2020-04-09 | 日立ジョンソンコントロールズ空調株式会社 | 電力変換回路および空気調和機 |
WO2020070850A1 (ja) * | 2018-10-04 | 2020-04-09 | 日立ジョンソンコントロールズ空調株式会社 | 電力変換回路および空気調和機 |
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KR101408107B1 (ko) | 2014-06-17 |
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EP2555405A4 (en) | 2015-12-16 |
EP2555405B1 (en) | 2020-11-18 |
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