+

WO2011058665A1 - Dispositif de conversion électrique - Google Patents

Dispositif de conversion électrique Download PDF

Info

Publication number
WO2011058665A1
WO2011058665A1 PCT/JP2010/001355 JP2010001355W WO2011058665A1 WO 2011058665 A1 WO2011058665 A1 WO 2011058665A1 JP 2010001355 W JP2010001355 W JP 2010001355W WO 2011058665 A1 WO2011058665 A1 WO 2011058665A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
mos
circuit
power supply
conversion device
Prior art date
Application number
PCT/JP2010/001355
Other languages
English (en)
Japanese (ja)
Inventor
船山裕治
奥山敦
田村正博
田村建司
能登原保夫
Original Assignee
日立アプライアンス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立アプライアンス株式会社 filed Critical 日立アプライアンス株式会社
Publication of WO2011058665A1 publication Critical patent/WO2011058665A1/fr

Links

Images

Classifications

    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0083—Converters characterised by their input or output configuration
    • H02M1/0085—Partially controlled bridges
    • 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 provides a rectifier circuit that rectifies an AC power supply, a smoothing circuit that smoothes a pulsating DC voltage after rectification, controls a DC voltage while boosting the smoothed DC voltage, and converts a current waveform of the AC power supply to a harmonic current.
  • the present invention relates to a step-up chopper circuit that performs power factor improvement by shaping so as to suppress, and a power conversion device including the circuit.
  • a rectifier circuit having a diode bridge structure, a smoothing circuit using a capacitor, and an AC-DC converter circuit in combination of them is generally used. It is. The reason is that the circuit configuration is easy and inexpensive, and it is generally widely used in many electric devices.
  • the diode loss used in this rectifier circuit can be expressed by the product of the forward voltage, which is one of the typical characteristics of the diode, and the current flowing through the diode, and is one of the major loss factors in power conversion. .
  • MOS-FET instead of a diode. This utilizes the fact that the low on-resistance MOS-FET loss is superior to the diode loss in a region where the current is relatively small.
  • MOS-FET is a characteristic that allows current to flow in both directions compared to a diode that allows current to flow only in one direction. Therefore, it is necessary to control MOS-FET on / off depending on whether the AC power supply is positive or negative. It ’s hard.
  • Japanese Patent Application Laid-Open No. 2004-133867 has been developed to solve this problem.
  • FIG. 9 shows a control circuit described in Patent Document 1. Two of the four diodes constituting the rectifier circuit are replaced with MOS-FETs, and driving means for driving the MOS-FETs and comparison means for sending a control signal to the driving means.
  • the rectifier circuit using the MOS-FET can be easily controlled in this way, the loss of the rectifier circuit can be reduced.
  • the conventional rectifier circuit using MOS-FET and its control method are excellent technologies that can reduce power conversion loss.
  • An object of the present invention is to realize a low-loss power converter.
  • the purpose of the present invention is to A super junction N-channel MOS-FET having a low on-resistance characteristic is used as the switching element, and the control means turns on all the MOS-FETs when the AC power supply and the reactor are short-circuited, and the AC power supply and the reactor are short-circuited. When unnecessary, it is achieved by controlling the MOS-FET connected to the positive side of the AC power supply to be turned off.
  • a low-loss power converter can be realized.
  • the lineblock diagram showing the power converter of Example 1 of this application The block diagram showing the power converter device of Example 2 of this application.
  • the simulation figure which modularized the power converter device of Example 8 of this application Conventional example.
  • FIG. 1 is a block diagram showing the circuit configuration and control means of the power converter of the present invention.
  • Reference numeral 1 denotes an AC power source that generates an AC voltage
  • 2 denotes a reactor that contributes to shaping of the current waveform of the AC power source, and boosting of the DC voltage
  • 3a, 3b, 3c, and 3d are AC voltage rectifier circuits in which diodes are bridged.
  • the step-up chopper circuit is a circuit that stores energy in the reactor 2 and discharges it to the capacitor 5.
  • 4a and 4b are MOS-FETs that function as switching of the step-up chopper circuit and the rectifying function of the rectifier circuit
  • 5 is a capacitor that smoothes the pulsating voltage obtained by rectifying the AC voltage and converts it into a DC voltage
  • 6 is DC voltage control and high power.
  • 6a and 6b are output signals of the control means
  • 7 is a direct-current voltage detection means for detecting the direct-current voltage which is the output voltage of the step-up chopper circuit
  • 7a is direct current.
  • 8 is an AC voltage zero cross detecting means for detecting 0 level of the voltage of the AC power supply
  • 8a is a voltage signal of two paths over which the AC power supply is placed.
  • the current does not flow unless the AC voltage of the AC power supply 1 is greater than the voltage stored in the smoothing capacitor.
  • This is a known fact as a capacitor input type rectifier circuit. Therefore, in order to allow current to flow at other times, the AC power source 1 is short-circuited through the reactor 2 to widen the current waveform and improve the power factor, and the energy storage effect of the reactor 2 due to the short-circuit current is utilized.
  • the DC voltage is controlled while boosting the DC voltage.
  • This control is also a widely known technique, and the number of times the AC power source 1 is short-circuited by the reactor 2 in the half cycle of the power source is determined by the priority of items required for the power converter. Is done.
  • the items required here include harmonic current regulation, boost ratio of output voltage of boost chopper circuit to AC power supply voltage, power factor improvement, circuit scale, cost, and the like.
  • the control means 6 When the AC power supply 1 and the reactor 2 are short-circuited, the control means 6 outputs output signals 6a and 6b that turn on the operation to the MOS-FETs 4a and 4b. Further, if it is not necessary to short-circuit the AC power supply 1 and the reactor 2, an output signal 6a for turning off the operation is output only to the MOS-FET 4a.
  • the MOS-FET 4 (for example, 4b) connected to the negative side can enjoy both effects of the parasitic diode of the MOS-FET 4 and the MOS-FET 4. This is called a synchronous rectification effect. Furthermore, since the diode 3d is also connected in parallel, the element loss due to the current shunting can be reduced.
  • the determination of whether the MOS-FETs 4a and 4b are connected to the positive side or the negative side of the AC power source 1 uses the AC voltage zero cross detection means 8 which is indispensable for controlling the step-up chopper circuit. Specifically, when detecting the zero crossing of the AC voltage, the two systems overlaid with the AC power source are compared, and the determination can be made easily by the signal generated there. A simulation diagram is shown in the AC voltage zero cross detection means 8. When the rectangular wave signal generated from the AC voltage is at the HI level, the MOS-FET 4a is on the positive side of the AC power supply 1. Conversely, when the rectangular wave signal is at the LOW level, the MOS-FET 4b is on the positive side of the AC power supply 1. Become the side.
  • the power conversion device performs switching only once in a half cycle of the AC power supply.
  • the loss can be reduced by the low ON characteristics of the MOS-FETs 4a and 4b. Even if the current increases and the two diodes 3c and 3d are turned on, the MOS-FETs 4a and 4b Therefore, the loss can be further reduced.
  • FIG. 2 is a block diagram showing the circuit configuration and control means of the power converter according to the present invention. It is assumed that the power converter is continuously turned on and off a plurality of times in a half cycle of the AC power source 1. . Although the operation is the same as that of the first embodiment, the characteristics of the diode are improved. These are the diodes 9a and 9b, which are changed to the high-speed type with a guaranteed reverse recovery time. This is because, when the MOS-FETs 4a and 4b are continuously operated, if the reverse recovery time of the diodes 9a and 9b is slow, the reverse current from the capacitor 5 flows to the diodes 9a and 9b, thereby deteriorating the turn-on loss of the MOS-FETs 4a and 4b. This is because of concern. By this change, it is possible to reduce the loss of the power conversion device that achieves both AC-DC conversion and power factor improvement, which have substantially the same effect as the first embodiment.
  • FIG. 3 is a block diagram showing the circuit configuration and control means of the power converter of the present invention.
  • the difference from the first and second embodiments is that there are no diodes 3c and 3d constituting the rectifier circuit. With this configuration, two diodes can be omitted, which is effective in reducing the mounting area and cost.
  • the operation in the first and second embodiments, when the current increases, the current is shunted in the MOS-FET 4a and the diode 3c or in the MOS-FET 4b and the diode 3d, so that the loss reduction effect can be expected. The effect of is not obtained.
  • FIG. 4 is a block diagram showing the circuit configuration and control means of the power conversion device of the present invention, which is replaced with an inexpensive diode stack 4 instead of the four diodes of the first embodiment. This makes it possible to reduce the cost for constructing all the elements of the power conversion device with discrete components, and the low loss of the power conversion device that achieves both AC-DC conversion and power factor improvement, which is almost the same effect as in the first embodiment. Can be realized.
  • FIG. 5 is a block diagram showing the circuit configuration and control means of the power converter according to the present invention.
  • the diode stack 9 is replaced with the four diodes 9a, 9b, 3c, 3d of the second embodiment and the reverse recovery time is guaranteed. Is replaced with. This makes it possible to reduce the cost for constructing all the elements of the power conversion device with discrete components, and the low loss of the power conversion device that achieves both AC-DC conversion and power factor improvement, which is almost the same effect as in the second embodiment. Can be realized.
  • FIG. 6 shows the module configuration of the circuit configuration and control means of the power conversion apparatus according to the first embodiment of the present invention, which is modularized except for the passive element reactor 2 and the smoothing capacitor 5, which have a large element size and are difficult to mount. Yes.
  • As a merit of modularization it is possible to easily dissipate the heat dissipating structure by consolidating the heat dissipating structure, ease of mounting, and sell it as a power converter. Even without expert knowledge, it is possible to easily and quickly develop a power conversion device module that has substantially the same effect as in the first embodiment.
  • FIG. 7 shows the module configuration of the circuit configuration and control means of the power conversion apparatus according to the second embodiment of the present invention, which is modularized except for the passive element reactor 2 and the smoothing capacitor 5 which are difficult to mount due to the large element size.
  • the passive element reactor 2 and the smoothing capacitor 5 which are difficult to mount due to the large element size.
  • FIG. 8 shows a module configuration of the circuit configuration and control means of the power conversion device according to the third embodiment of the present invention, which is modularized except for the passive element reactor 2 and the smoothing capacitor 5 which have a large element size and are difficult to mount. Yes.
  • As a merit of modularization it is possible to easily dissipate the heat dissipating structure by consolidating the heat dissipating structure, ease of mounting, and sell it as a power converter. Even without expert knowledge, it is possible to easily and quickly develop a power conversion device module that has substantially the same effect as the third embodiment.
  • the MOS-FET can be used both as a rectifying element and a switching element of the boost chopper circuit, and the loss of the power conversion device that achieves both AC-DC conversion and power factor improvement can be reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
  • Dc-Dc Converters (AREA)

Abstract

A l'inverse des diodes, les MOSFET se caractérisent par l'envoi de courant circulant dans les deux sens, les MOSFET devant être ainsi commandés pour se mettre en marche, ou se mettre hors tension, par rapport au sens de l'alimentation électrique. Cependant, un procédé de commande, appliqué lorsqu'on utilise des MOSFET dans des circuits redresseurs, ne peut pas être utilisé lorsqu'on l'applique à des MOSFET utilisés dans des circuits redresseurs pour développer des convertisseurs actifs. Un autre problème se pose du fait des caractéristiques des éléments de circuit lorsque la fréquence de commutation est supérieure à celle dans une demi-période de la tension d'alimentation électrique d'un circuit amplificateur à découpage. Le but de la présente invention est atteint en employant des MOSFET à canal N à structure de super-jonction, comprenant des caractéristiques de résistance basse dans leurs éléments de commutation. Les moyens de commande commandent de sorte que tous les MOSFET se mettent en marche lorsque l'alimentation électrique CA et la bobine de réactance se court-circuitent, et à ce que les MOSFET connectés côté borne positive de l'alimentation électrique CA sont hors tension lorsque le court-circuitage de l'alimentation électrique CA et de la bobine de réactance n'est pas nécessaire.
PCT/JP2010/001355 2009-11-13 2010-03-01 Dispositif de conversion électrique WO2011058665A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009259397A JP2011109741A (ja) 2009-11-13 2009-11-13 電力変換装置
JP2009-259397 2009-11-13

Publications (1)

Publication Number Publication Date
WO2011058665A1 true WO2011058665A1 (fr) 2011-05-19

Family

ID=43991344

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/001355 WO2011058665A1 (fr) 2009-11-13 2010-03-01 Dispositif de conversion électrique

Country Status (2)

Country Link
JP (1) JP2011109741A (fr)
WO (1) WO2011058665A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013034338A (ja) * 2011-08-03 2013-02-14 Toyota Industries Corp 電源回路
JP6431413B2 (ja) * 2015-03-13 2018-11-28 日立ジョンソンコントロールズ空調株式会社 電力変換装置、及びこれを備える空気調和機、並びに電力変換方法
KR102303822B1 (ko) * 2019-09-17 2021-09-16 인천대학교 산학협력단 정전압 출력이 가능한 무선 전력 수신용 정류기

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178140A (ja) * 1999-12-22 2001-06-29 Fuji Electric Co Ltd 交流―直流変換装置
JP2001238452A (ja) * 2000-02-23 2001-08-31 Matsushita Electric Ind Co Ltd コンバータ回路
JP2002017087A (ja) * 2000-06-30 2002-01-18 Shindengen Electric Mfg Co Ltd スイッチング電源
JP2003164157A (ja) * 2001-11-22 2003-06-06 Fuji Electric Co Ltd 交流−直流変換回路
JP2004064952A (ja) * 2002-07-31 2004-02-26 Tabuchi Electric Co Ltd ダイオードブリッジ整流回路
JP2007527687A (ja) * 2003-10-01 2007-09-27 インターナショナル・レクティファイヤ・コーポレーション ワンサイクル制御によって制御されるブリッジレスブースト式（ｂｌｂ）力率補正トポロジー
JP2009261106A (ja) * 2008-04-15 2009-11-05 Mitsubishi Heavy Ind Ltd 電気回路

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3225825B2 (ja) * 1996-01-12 2001-11-05 富士電機株式会社 Ａｃ／ｄｃ変換装置
JP2002345250A (ja) * 2001-05-11 2002-11-29 Tdk Corp 整流回路
JP4096656B2 (ja) * 2002-08-02 2008-06-04 富士電機機器制御株式会社 整流装置
JP4867279B2 (ja) * 2005-10-17 2012-02-01 パナソニック株式会社 電力変換装置
JP4984751B2 (ja) * 2006-08-31 2012-07-25 ダイキン工業株式会社 空調機のコンバータ装置
JPWO2008090917A1 (ja) * 2007-01-24 2010-05-20 パナソニック株式会社 直流電源装置とそれを備えた空気調和機
JP4474436B2 (ja) * 2007-05-09 2010-06-02 シャープ株式会社 力率改善回路、モータ駆動装置及び空気調和機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001178140A (ja) * 1999-12-22 2001-06-29 Fuji Electric Co Ltd 交流―直流変換装置
JP2001238452A (ja) * 2000-02-23 2001-08-31 Matsushita Electric Ind Co Ltd コンバータ回路
JP2002017087A (ja) * 2000-06-30 2002-01-18 Shindengen Electric Mfg Co Ltd スイッチング電源
JP2003164157A (ja) * 2001-11-22 2003-06-06 Fuji Electric Co Ltd 交流−直流変換回路
JP2004064952A (ja) * 2002-07-31 2004-02-26 Tabuchi Electric Co Ltd ダイオードブリッジ整流回路
JP2007527687A (ja) * 2003-10-01 2007-09-27 インターナショナル・レクティファイヤ・コーポレーション ワンサイクル制御によって制御されるブリッジレスブースト式（ｂｌｂ）力率補正トポロジー
JP2009261106A (ja) * 2008-04-15 2009-11-05 Mitsubishi Heavy Ind Ltd 電気回路

Also Published As

Publication number Publication date
JP2011109741A (ja) 2011-06-02

Similar Documents

Publication Publication Date Title
JP5995139B2 (ja) 双方向ｄｃ／ｄｃコンバータ
JP6172277B2 (ja) 双方向ｄｃ／ｄｃコンバータ
US7307857B2 (en) Non-isolated DC-DC converters with direct primary to load current
US10819222B2 (en) Circuitry for power factor correction and methods of operation
JP5788017B2 (ja) 電力変換装置
WO2012176403A1 (fr) Convertisseur courant alternatif/courant continu de type survolteur
WO2016139745A1 (fr) Convertisseur de puissance
JP5522265B2 (ja) フィルタ回路及びそれを備える双方向電力変換装置
JP2013219903A (ja) 整流回路
JP5849599B2 (ja) フォワード形直流−直流変換装置
JP2006136125A (ja) 電荷蓄積素子の電力制御回路
JP4715429B2 (ja) 交直変換回路
JP5858217B2 (ja) 交流−交流変換回路
KR102387744B1 (ko) Ac-ac 컨버터 회로
JP3681596B2 (ja) 直流電源装置
Ortmann et al. High switches utilization single-phase PWM boost-type PFC rectifier topologies multiplying the switching frequency
CN105075099B (zh) 功率转换装置
WO2011058665A1 (fr) Dispositif de conversion électrique
JP2012191761A (ja) 交流−直流変換回路
JP6467524B2 (ja) 電力変換装置および鉄道車両
JP2016123148A (ja) スイッチング電源装置
JP2012010507A (ja) 直流電源装置
JP5423264B2 (ja) 電力変換装置
JP5786334B2 (ja) 電源装置
Heldwein et al. Single-phase pwm boost-type unidirectional rectifier doubling the switching frequency

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10829633

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10829633

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载