WO2009157276A1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
- Publication number
- WO2009157276A1 WO2009157276A1 PCT/JP2009/059999 JP2009059999W WO2009157276A1 WO 2009157276 A1 WO2009157276 A1 WO 2009157276A1 JP 2009059999 W JP2009059999 W JP 2009059999W WO 2009157276 A1 WO2009157276 A1 WO 2009157276A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power supply
- power
- conduction
- supply line
- lines
- Prior art date
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
- 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
-
- 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
- H02M7/21—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/2173—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a biphase or polyphase circuit arrangement
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H02M5/02—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 without intermediate conversion into dc
- H02M5/04—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 without intermediate conversion into dc by static converters
- H02M5/22—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 without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/275—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 without intermediate conversion into dc 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
- H02M5/293—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 without intermediate conversion into dc 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
-
- 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
- H02M7/02—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
- H02M7/21—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
-
- 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
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
Definitions
- Non-Patent Document 1 describes a direct power converter with a DC link.
- the converter and the inverter are connected via a DC link.
- the converter converts the AC current on the input side into a DC current and outputs it to the DC link.
- the converter main circuit shown here cannot perform the reverse conversion, that is, convert the DC current of the DC link into AC current and output it to the input side. Therefore, the converter cannot regenerate the induced current of the inductive load generated when the inverter is shut off to the power supply side.
- Non-Patent Document 1 a clamp capacitor is provided in the DC link, and the clamp capacitor absorbs the induced current.
- a filter consisting of a reactor and an input capacitor is provided on the input side of the converter. Therefore, when the clamp capacitor is in a discharging state, if the converter is turned on, the input capacitor and the clamp capacitor are short-circuited with each other, and an inrush current may flow from the input capacitor to the clamp capacitor.
- Non-Patent Document 2 describes a technique that can solve such a problem.
- Non-Patent Document 2 describes a direct power conversion circuit with a DC link having a clamp circuit, in which a diode rectifier circuit for charging a clamp capacitor is separately provided.
- Non-patent documents 3 and 4 are disclosed as techniques related to the present invention.
- Japanese Patent Application No. 2007-220907 describes a direct power converter that prevents an inrush current from an input capacitor to a clamp capacitor.
- the direct power converter two clamp capacitors connected in series with each other are provided in the DC link, and the neutral point of the power source and the clamp capacitors are connected to each other. Then, when charging the clamp capacitor, the converter is appropriately controlled to rectify the AC voltage from the power supply by double voltage rectification and supply it to the clamp capacitor.
- Such a technique can prevent an inrush current from flowing from the input capacitor to the clamp capacitor, but requires a dedicated charging circuit (for example, a circuit that connects the neutral point of the power source and the clamp capacitor via a resistor). Therefore, the circuit scale and manufacturing cost have increased.
- a dedicated charging circuit for example, a circuit that connects the neutral point of the power source and the clamp capacitor via a resistor. Therefore, the circuit scale and manufacturing cost have increased.
- an object of the present invention is to provide a power conversion device that can eliminate an inrush current from a capacitor on the input side of a converter to a clamp capacitor while omitting a dedicated charging circuit.
- a plurality of input lines (ACLr, ACLs, ACLt) to which a multiphase AC voltage is applied between the plurality of input lines and a plurality of input lines interposed between the plurality of input lines are provided.
- Capacitors (Cr, Cs, Ct), a first DC power line (L1), a second DC power line (L2) to which a potential lower than the first DC power line is applied, and the plurality The first diodes (Drp, Dsp, Dp, Dsp,...) are provided corresponding to each of the input lines, and the anode is connected to the corresponding one of the plurality of input lines and the cathode is connected to the first DC power supply line.
- a second diode (Drn, Dsn, Dtn) having an anode connected to the second DC power supply line side and a cathode connected to the corresponding one of the plurality of input line sides, Provided corresponding to each of the input lines, based on external signals (SSrp, SSrn; SSsp, SSsn; SStp, SStn) Conduction / non-conduction through the first diode between a plurality of input lines and the first DC power supply line, and the corresponding one of the plurality of input lines and the second DC power supply line In the state where the conduction / non-conduction through the second diode is selected and the signal is not received, the corresponding one of the plurality of input lines is brought into conduction with the first and second DC power supply lines.
- a converter (1) having a switch unit (Trp, Tsp, Ttp, Trn, Tsn, Ttn) and clamp capacitors (Cc1, Cc2) connected between the
- a second aspect of the power conversion device according to the present invention is the power conversion device according to the first aspect, wherein the switch section (Trp, Tsp, Ttp, Trn, Tsn, Ttn) is a junction field effect transistor. Have.
- a fourth aspect of the power conversion device according to the present invention is the power conversion device according to the third aspect, in which the high arm side switch element (Sup, Svp, Swp) and the low arm side switch element (Sun, Svn, Swn) has an insulated gate bipolar transistor.
- the switch unit connects the one input line and the first DC power supply line via the first diode in a state where no signal is received,
- One input line and the second DC power supply line are connected through two diodes. Therefore, the converter functions as a rectifier circuit without receiving a signal. Therefore, for example, when a multiphase AC voltage is applied to the input line in a state where the switch unit is not receiving a signal before the power converter is activated, the DC voltage is charged to the clamp capacitor. In this case, since a voltage is applied to the capacitor and the clamp capacitor almost simultaneously, no inrush current is generated from the capacitor to the clamp capacitor.
- the junction field effect transistor since the junction field effect transistor conducts without receiving a signal, the junction field effect transistor that is easy to configure as the switch unit can be used as it is. it can. In addition, it is possible to apply a junction field effect transistor that can be easily manufactured when a wide band gap element such as SiC or GaN is used.
- the power storage means such as a smoothing capacitor between the first and second DC power supply lines after the voltage is charged in the clamp capacitor. It can function itself as a direct AC power converter.
- the current returned from the voltage-side inverter can be accumulated by a clamp capacitor and can be held at a constant voltage.
- the 4th aspect of the power converter device which concerns on this invention, it contributes to realization of the power converter device which concerns on a 3rd aspect.
- FIG. 3 is a diagram showing a hybrid element in which a J-FET and a MOS-FET are connected in cascode connection. It is a figure which shows another example of the conceptual structure of the direct power converter which concerns on 1st Embodiment. It is a figure which shows an example of a notional structure of the direct power converter device which concerns on 2nd Embodiment. It is a figure which shows another example of the notional structure of the direct power converter device which concerns on 2nd Embodiment. It is a figure which shows an example of a notional structure of the direct power converter device which concerns on 3rd Embodiment.
- FIG. 1 shows an example of a conceptual configuration of a direct power converter according to the first embodiment.
- the direct power converter includes a plurality of input lines ACLr, ACLs, ACLt, reactors Lr, Ls, Lt, capacitors Cr, Cs, Ct, a current source converter 1, DC power supply lines L1, L2, and a clamp.
- a circuit 2, a voltage source inverter 3, and a plurality of output lines ACLu, ACLv, ACLw are provided.
- a power source E1 is connected to all of the input lines ACLr, ACLs, and ACLt.
- the power supply E1 is a multiphase AC power supply, for example, a three-phase AC power supply.
- the power supply E1 applies a three-phase AC voltage between the input lines ACLr, ACLs, and ACLt.
- Reactors Lr, Ls, and Lt are provided on input lines ACLr, ACLs, and ACLt, respectively.
- the capacitors Cr, Cs, and Ct are interposed between the input lines ACLr, ACLs, and ACLt, for example, Y-connected. That is, the capacitors Cr and Cs are connected in series between the input lines ACLr and ACLs. The capacitors Cs and Ct are connected in series between the input lines ACLs and ACLt. Capacitors Ct and Cr are connected in series between input lines ACLt and ACLr. These are provided on the input side of the current source converter 1 and function as a voltage source. On the other hand, it can be understood that the capacitors Cr, Cs, and Ct constitute a carrier current component removal filter that removes the carrier current component together with the reactors Lr, Ls, and Lt, respectively.
- the current source converter 1 has a plurality of switch elements Sxp, Sxn (where x represents r, s, t. The same applies hereinafter).
- the three-phase AC voltage applied between the input lines ACLr, ACLs, and ACLt is selectively supplied between the DC power supply lines L1 and L2 by the selection operation of the plurality of switch elements Sxp and Sxn.
- a current is passed through power supply lines L1 and L2.
- a DC voltage having the DC power supply line L1 as the high potential side and the DC power supply line L2 as the low potential side is applied between the DC power supply lines L1 and L2.
- FIG. 2 shows a conceptual example of a specific configuration of the current source converter 1. However, FIG. 2 shows a configuration for one phase.
- the switch element Sxp includes a transistor Txp and a high-speed diode Dxp.
- the switch element Sxn includes a transistor Txn and a high-speed diode Dxn.
- the anode of the high-speed diode Dxp is connected to the input line ACLx side, and the cathode is connected to the DC power supply line L1 side.
- the anode of the high-speed diode Dxn is connected to the DC power supply line L2 side, and the cathode is connected to the input line ACLx side.
- Transistors Txp and Txn receive an external signal, and the conduction / non-conduction is selected.
- the transistors Txp and Txn are so-called normally-on switches that conduct in a state where they do not receive the signal.
- the transistor Txp is provided between the input line ACLx and the anode of the high speed diode Dxp.
- the transistor Txn is provided between the input line ACLx and the cathode of the high speed diode Dxn.
- the transistors Txp and Txn are connected / disconnected via the high-speed diode Dxp between the input line ACLx and the DC power supply line L 1 and the input line ACLx based on an external signal. It can be grasped as a switch unit that selects conduction / non-conduction through the high-speed diode Dxn with the DC power supply line L2 and conducts the input line ACLx with the DC power supply lines L1 and L2 without receiving the signal.
- the clamp circuit 2 includes a diode D1 and a clamp capacitor Cc1.
- the clamp capacitor Cc1 is connected between the DC power supply lines L1 and L2.
- the diode D1 has an anode positioned on the DC power supply line L1 side and a cathode positioned on the DC power supply line L2 side, and is connected in series with the clamp capacitor Cc1.
- the clamp circuit 2 causes the current flowing through the DC power supply line L1 from the inductive load (for example, a motor) connected to the output lines ACLu, ACLv, and ACLw to pass through the voltage source inverter 3 to the inductive current of the inductive load. Is stored and held at a constant voltage.
- the inductive load for example, a motor
- the voltage source inverter 3 includes a plurality of high arm side switch elements Syp (provided that y represents u, v, and w. The same applies hereinafter) and a low arm side switch element Syn. Hereinafter, they are simply referred to as switch elements Syp and Syn.
- the switch element Syp selects conduction / non-conduction between the DC power supply line L1 and the output line ACLy.
- Switch element Syn selects conduction / non-conduction between DC power supply line L2 and output line ACLy. Then, the voltage between the DC power supply lines L1 and L2 is converted and output to the output lines ACLu, ACLv, and ACLw by the selection operation of the plurality of switch elements Syp and Syn.
- FIG. 3 shows a conceptual example of a specific configuration of the voltage source inverter 3. However, FIG. 3 shows a configuration for one phase.
- the switch element Syp includes a transistor Typ and a free wheel diode Dyp.
- the switch element Syn includes a transistor Tyn and a free-wheeling diode Dyn.
- the collector of the transistor Typ and the cathode of the free-wheeling diode Dyp are connected to the DC power supply line L1.
- the emitter of the transistor Tyn and the anode of the freewheeling diode Dyn are connected to the DC power supply line L2.
- the emitter of the transistor Typ, the collector of the transistor Tyn, the anode of the freewheeling diode Dyp, and the cathode of the freewheeling diode Dyn are commonly connected to the output line ACLy.
- Transistors Typ and Tyn are normally-off type switches, and are, for example, insulated gate bipolar transistors (hereinafter referred to as IGBTs).
- IGBTs insulated gate bipolar transistors
- the diode D1 inhibits the discharge of the voltage charged in the clamp capacitor Cc1. Therefore, the direct power converter functions as a direct power converter that does not have power storage means such as a smoothing capacitor and a reactor in the DC power supply lines L1 and L2 when supplying current to the inductive load. Can do.
- the clamp circuit 2 accumulates the current from the voltage source inverter 3 generated when, for example, the switch elements Syp and Syn are cut off, and holds the current at a constant voltage.
- the current source converter 1 functions as a rectifier circuit when no signal is received from the outside. Therefore, for example, when a three-phase AC voltage is applied to the input lines ACLr, ACLs, and ACLt in a state where the transistors Txp and Txn are not receiving signals as in the case before the direct power converter is activated, a DC voltage is applied to the clamp capacitor Cc1. Is charged.
- the capacitors Cr, Cs, Ct and the clamp capacitor Cc1 are connected to each other via the current source converter 1.
- a three-phase AC voltage is applied to the input lines ACLr, ACLs, ACLt
- voltages are applied to the clamp capacitor Cc1 and the capacitors Cr, Cs, Ct substantially simultaneously. Therefore, charging of the clamp capacitor Cc1 can be started in a state where no voltage is charged in any of the capacitors Cr, Cs, and Ct. Therefore, at the start of charging of the clamp capacitor Cc1, it is possible to prevent an inrush current from flowing from the capacitors Cr, Cs, Ct to the clamp capacitor Cc1.
- J-FETs junction field effect transistors
- Txp and Txn junction field effect transistors
- the J-FET is a normally-on type switch element, and its configuration is simpler than that of an IGBT or the like.
- FIG. 4 shows the hybrid element.
- the J-FET 51 and the MOS-FET 52 are cascode-connected.
- Such a hybrid element is described in Non-Patent Document 3 described above.
- the transistors Txp and Txn are normally-on type switches in this direct power converter
- J-FETs having a simple configuration can be used as they are as the transistors Txp and Txn. This can lead to a reduction in manufacturing costs.
- a junction field effect transistor that can be easily manufactured can be applied when wide band gap elements such as SiC and GaN are employed as the transistors Txp and Txn. As a result, it is possible to improve the control performance and the conversion efficiency by increasing the carrier of the direct power converter.
- FIG. 5 shows another example of the conceptual configuration of the direct power converter. Compared to the direct power converter shown in FIG. 1, the configuration of the clamp circuit 2 is different.
- the clamp circuit 2 includes clamp capacitors Cc1 and Cc2 and diodes D1 to D3.
- the clamp capacitors Cc1 and Cc2 are connected in series between the DC power supply lines L1 and L2.
- the clamp capacitor Cc2 is provided on the DC power supply line L2 side with respect to the clamp capacitor Cc1.
- the diode D1 is provided between the clamp capacitors Cc1 and Cc2, and has an anode connected to the clamp capacitor Cc1 and a cathode connected to the clamp capacitor Cc2.
- the anode of the diode D2 is connected between the clamp capacitor Cc2 and the diode D1, and the cathode thereof is connected to the DC power supply line L1.
- the anode of the diode D3 is connected to the DC power supply line L2, and the cathode is connected between the clamp capacitor Cc1 and the diode D1.
- Such a clamp circuit 2 operates as follows.
- the load current flowing therethrough may be delayed with respect to the voltage between the DC power supply lines L1 and L2, depending on the load power factor.
- the clamp capacitors Cc1 and Cc2 are charged in series with each other.
- the charging voltage at this time (a pair of voltages across the clamp capacitors Cc1 and Cc2) is also determined based on the load power factor.
- the clamp capacitors Cc1 and Cc2 rises above the voltage between the DC power supply lines L1 and L2, the clamp capacitors Cc1 and Cc2 are discharged in parallel with each other. Since the clamp capacitors Cc1 and Cc2 are charged in series with each other and discharged in parallel with each other, the discharge voltage is 1 ⁇ 2 of the charge voltage.
- the charging / discharging operation acts so that the voltages of the clamp capacitors Cc1 and Cc2 are balanced.
- the inductive load can be driven efficiently.
- the clamp circuit 2 does not require a so-called active element such as a switch element, power consumption and manufacturing cost can be reduced.
- the control unit 4 is connected to both ends of the clamp capacitor Cc1, and uses the voltage across the clamp capacitor Cc1 as an operating power source.
- the control unit 4 gives the signals SSxp and SSxn to the current source converter 1 (more specifically, the transistors Txp and Txn), and the signals SSyp and SSyn to the voltage source inverter 3 (more specifically, the transistors Typ and Tyn). give.
- the transistors Txp, Txn, Typ, Tyn are controlled to be turned on / off based on signals SSxp, SSxn, SSyp, SSyn, respectively.
- FIG. 7 shows another example of the conceptual configuration of the direct power converter. However, in FIG. 7, the subsequent stage is omitted from the clamp circuit 2.
- resistors R1 and R2 are connected to both ends of the clamp capacitors Cc1 and Cc2, respectively.
- the resistors R1 and R2 indicate the control unit 4 as a pseudo resistor.
- the resistor R1 can be a control unit on the converter 1 side of the control unit 4, and the resistor R2 can be a control unit on the inverter 3 side. It is desirable to choose.
- the control unit 4 uses the voltage across the clamp capacitors Cc1 and Cc2 as an operating power source. Therefore, the rectifier circuit for supplying the operation power to the control unit 4 can be omitted, and the circuit scale and manufacturing cost can be reduced.
- FIG. 8 shows an example of a conceptual configuration of the direct power converter according to the third embodiment. However, in FIG. 8, the subsequent stage is omitted from the clamp circuit 2. Compared with the direct power converter shown in FIG. 1, resistors R3 and R4 and switches S1 and S2 are further provided.
- the resistors R3 and R4 are provided on at least any two of the input lines ACLr, ACLs, and ACLt.
- the resistors R3 and R4 are provided on the input lines ACLr and ACLt.
- the switches S1, S2 are normally-off type relays, for example, and are connected in parallel with the resistors R3, R4, respectively. By causing the switches S1 and S2 to conduct after the clamp capacitor Cc1 is charged, the loss caused by the resistors R3 and R4 in the normal operation can be avoided.
- clamp circuit 2 in FIG. 8 may be replaced with the clamp circuit 2 shown in FIG.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Inverter Devices (AREA)
Abstract
Description
図1は第1の実施の形態に係る直接形電力変換装置の概念的な構成の一例を示す。本直接形電力変換装置は、複数の入力線ACLr,ACLs,ACLtと、リアクトルLr,Ls,Ltと、コンデンサCr,Cs,Ctと、電流形コンバータ1と、直流電源線L1,L2と、クランプ回路2と、電圧形インバータ3と、複数の出力線ACLu,ACLv,ACLwとを備えている。
図6は第2の実施の形態に係る直接形電力変換装置の概念的な構成の一例を示す。図1に示す直接形電力変換装置と比較して、制御部4を更に備えている。
図8は第3の実施の形態に係る直接形電力変換装置の概念的な構成の一例を示す。但し、図8においてはクランプ回路2よりも後段を省略して示している。図1に示す直接形電力変換装置と比較して抵抗R3,R4、スイッチS1,S2を更に備えている。
Claims (4)
- 相互間に多相交流電圧が印加される複数の入力線(ACLr,ACLs,ACLt)と、
前記複数の入力線の相互間に介在する複数のコンデンサ(Cr,Cs,Ct)と、
第1の直流電源線(L1)と、
前記第1の直流電源線よりも低い電位が印加される第2の直流電源線(L2)と、
前記複数の入力線の各々に対応して設けられ、アノードが対応する一の前記複数の入力線側に、カソードが前記第1の直流電源線側にそれぞれ接続された第1のダイオード(Drp,Dsp,Dtp)と、アノードが前記第2の直流電源線側に、カソードが対応する前記一の前記複数の入力線側にそれぞれ接続された第2のダイオード(Drn,Dsn,Dtn)と、前記複数の入力線の各々に対応して設けられ、外部からの信号(SSrp,SSrn;SSsp,SSsn;SStp,SStn)に基づいて、対応する前記一の前記複数の入力線と前記第1の直流電源線との間の前記第1のダイオードを介した導通/非導通、及び対応する前記一の前記複数の入力線と前記第2の直流電源線との間の前記第2ダイオードを介した導通/非導通を選択し、前記信号を受け取らない状態で、対応する前記一の前記複数の入力線を前記第1及び前記第2の直流電源線と導通させる、スイッチ部(Trp,Tsp,Ttp,Trn,Tsn,Ttn)と、を有するコンバータ(1)と、
前記第1及び前記第2の直流電源線の間で接続されるクランプコンデンサ(Cc1,Cc2)と
を備える、電力変換装置。 - 前記スイッチ部(Trp,Tsp,Ttp,Trn,Tsn,Ttn)は接合型電界効果トランジスタを有する、請求項1に記載の電力変換装置。
- アノードが前記第1の直流電源線(L1)側に、カソードが前記第2の直流電源線(L2)側にそれぞれ位置し、前記クランプコンデンサと直列に接続された第3のダイオード(D1)と、
複数の出力線(ACLu,ACLv,ACLw)と、
一の前記複数の出力線と、前記第1の直流電源線との間の導通/非導通を選択するハイアーム側スイッチ素子(Sup,Svp,Swp)と、前記一の前記複数の出力線と、前記第2の直流電源線との間の導通/非導通を選択するローアーム側スイッチ素子(Sun,Svn,Swn)とを有するインバータ(3)と
を更に備える、請求項1又は2に記載の電力変換装置。 - 前記ハイアーム側スイッチ素子(Sup,Svp,Swp)及び前記ローアーム側スイッチ素子(Sun,Svn,Swn)は絶縁ゲートバイポーラトランジスタを有する、請求項3に記載の電力変換装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09769986.2A EP2299583B1 (en) | 2008-06-27 | 2009-06-01 | Electric power conversion device |
AU2009263526A AU2009263526B2 (en) | 2008-06-27 | 2009-06-01 | Power converter |
KR1020127031852A KR20120137519A (ko) | 2008-06-27 | 2009-06-01 | 전력 변환 장치 |
CN2009801241816A CN102077451B (zh) | 2008-06-27 | 2009-06-01 | 电力转换装置 |
US13/001,096 US9712076B2 (en) | 2008-06-27 | 2009-06-01 | Power converter with clamp capacitor on DC power supply line |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008168490A JP4375489B1 (ja) | 2008-06-27 | 2008-06-27 | 電力変換装置 |
JP2008-168490 | 2008-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009157276A1 true WO2009157276A1 (ja) | 2009-12-30 |
Family
ID=41444346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/059999 WO2009157276A1 (ja) | 2008-06-27 | 2009-06-01 | 電力変換装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9712076B2 (ja) |
EP (1) | EP2299583B1 (ja) |
JP (1) | JP4375489B1 (ja) |
KR (2) | KR20100134134A (ja) |
CN (1) | CN102077451B (ja) |
AU (1) | AU2009263526B2 (ja) |
WO (1) | WO2009157276A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2953662B1 (fr) * | 2009-12-03 | 2011-11-18 | Schneider Toshiba Inverter | Convertisseur de puissance a source de courant utilisant des transistors a effet de champ normalement fermes |
JP5749638B2 (ja) * | 2011-12-08 | 2015-07-15 | アイダエンジニアリング株式会社 | プレス機械の電源装置 |
JP5429316B2 (ja) * | 2012-03-02 | 2014-02-26 | ダイキン工業株式会社 | インダイレクトマトリックスコンバータ |
JP5533945B2 (ja) * | 2012-06-15 | 2014-06-25 | 株式会社安川電機 | 電力変換装置 |
BR112015006785B1 (pt) * | 2012-09-27 | 2021-09-28 | Daikin Industries, Ltd. | Conversor de potência de ca direta |
US9452070B2 (en) | 2012-10-31 | 2016-09-27 | Covidien Lp | Methods and systems for increasing a density of a region of a vascular device |
US20140156099A1 (en) * | 2012-12-05 | 2014-06-05 | Cummins Power Generation, Inc. | Generator power systems with active and passive rectifiers |
KR101985079B1 (ko) * | 2016-07-04 | 2019-05-31 | 숭실대학교산학협력단 | 전기자동차용 캐스코드 컨버터 및 그 구동방법 |
EP3726719A1 (en) * | 2019-04-15 | 2020-10-21 | Infineon Technologies Austria AG | Power converter and power conversion method |
US11394264B2 (en) | 2020-01-21 | 2022-07-19 | Itt Manufacturing Enterprises Llc | Motor assembly for driving a pump or rotary device with a low inductance resistor for a matrix converter |
US11451156B2 (en) | 2020-01-21 | 2022-09-20 | Itt Manufacturing Enterprises Llc | Overvoltage clamp for a matrix converter |
JP2021116378A (ja) * | 2020-01-28 | 2021-08-10 | Jnc株式会社 | シロキサンポリマー及びシロキサンポリマーの製造方法 |
WO2022070867A1 (ja) * | 2020-09-30 | 2022-04-07 | ダイキン工業株式会社 | 電力変換装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001314081A (ja) * | 2000-04-28 | 2001-11-09 | Sanken Electric Co Ltd | Ac−dcコンバータ |
JP2007295686A (ja) * | 2006-04-24 | 2007-11-08 | Daikin Ind Ltd | 直接形交流電力変換装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2903863B2 (ja) * | 1992-05-29 | 1999-06-14 | 三菱電機株式会社 | インバータ装置 |
CN1040272C (zh) * | 1995-03-15 | 1998-10-14 | 松下电工株式会社 | 逆变装置 |
SE510404C2 (sv) | 1995-11-03 | 1999-05-17 | Ericsson Telefon Ab L M | Anordning och förfaranden för att mata energi från en växelspänningskälla |
JPH09266695A (ja) * | 1996-03-28 | 1997-10-07 | Mitsubishi Electric Corp | 周波数変換装置 |
US5943223A (en) * | 1997-10-15 | 1999-08-24 | Reliance Electric Industrial Company | Electric switches for reducing on-state power loss |
CN2415540Y (zh) * | 2000-01-24 | 2001-01-17 | 南京航空航天大学 | 零电压零电流开关的三电平直流变换器 |
US20050040792A1 (en) * | 2003-08-18 | 2005-02-24 | Rajendran Nair | Method & apparatus for charging, discharging and protection of electronic battery cells |
DE102004035799A1 (de) * | 2004-07-23 | 2006-03-16 | Siemens Ag | Frequenzumrichter mit einem kondensatorlosen Zwischenkreis |
JP3772898B2 (ja) * | 2004-09-08 | 2006-05-10 | ダイキン工業株式会社 | 多相電流供給回路及び駆動装置 |
US7148660B2 (en) * | 2004-09-30 | 2006-12-12 | General Electric Company | System and method for power conversion using semiconductor switches having reverse voltage withstand capability |
US7492616B2 (en) | 2005-03-25 | 2009-02-17 | Lineage Power Corporation | Modulation controller, method of controlling and three phase converter system employing the same |
US8144149B2 (en) | 2005-10-14 | 2012-03-27 | Via Technologies, Inc. | System and method for dynamically load balancing multiple shader stages in a shared pool of processing units |
JP2009117613A (ja) * | 2007-11-06 | 2009-05-28 | Toshiba Corp | 半導体装置 |
-
2008
- 2008-06-27 JP JP2008168490A patent/JP4375489B1/ja active Active
-
2009
- 2009-06-01 CN CN2009801241816A patent/CN102077451B/zh active Active
- 2009-06-01 EP EP09769986.2A patent/EP2299583B1/en active Active
- 2009-06-01 KR KR1020107026541A patent/KR20100134134A/ko active Search and Examination
- 2009-06-01 AU AU2009263526A patent/AU2009263526B2/en active Active
- 2009-06-01 WO PCT/JP2009/059999 patent/WO2009157276A1/ja active Application Filing
- 2009-06-01 US US13/001,096 patent/US9712076B2/en active Active
- 2009-06-01 KR KR1020127031852A patent/KR20120137519A/ko not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001314081A (ja) * | 2000-04-28 | 2001-11-09 | Sanken Electric Co Ltd | Ac−dcコンバータ |
JP2007295686A (ja) * | 2006-04-24 | 2007-11-08 | Daikin Ind Ltd | 直接形交流電力変換装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2299583A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP2299583B1 (en) | 2024-05-15 |
KR20100134134A (ko) | 2010-12-22 |
JP4375489B1 (ja) | 2009-12-02 |
AU2009263526A1 (en) | 2009-12-30 |
EP2299583A1 (en) | 2011-03-23 |
US9712076B2 (en) | 2017-07-18 |
KR20120137519A (ko) | 2012-12-21 |
AU2009263526B2 (en) | 2013-08-22 |
EP2299583A4 (en) | 2017-08-16 |
US20110134663A1 (en) | 2011-06-09 |
CN102077451B (zh) | 2013-09-04 |
CN102077451A (zh) | 2011-05-25 |
JP2010011646A (ja) | 2010-01-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4375489B1 (ja) | 電力変換装置 | |
US8310848B2 (en) | Direct AC power converting apparatus | |
JP4772542B2 (ja) | 電力変換装置 | |
AU2008292604B2 (en) | Direct type AC power converting device | |
JP5933873B1 (ja) | 回生コンバータ | |
US20070053213A1 (en) | Wide-voltage-range converter | |
JP6421882B2 (ja) | 電力変換装置 | |
JP6467524B2 (ja) | 電力変換装置および鉄道車両 | |
CN111835215A (zh) | 转换器电路、电力转换系统以及电动机驱动装置 | |
JP2016127677A (ja) | 電力変換装置 | |
US9300208B2 (en) | Power converter with switched current supply control element | |
WO2005029690A1 (ja) | Pwmサイクロコンバータ | |
JPWO2019202862A1 (ja) | ゲート駆動回路および電力変換装置 | |
JP2022183645A (ja) | 電力変換装置 | |
JP2001037245A (ja) | 電力変換装置とその制御装置 | |
JP2013027182A (ja) | 電力変換装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980124181.6 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09769986 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20107026541 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009769986 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009263526 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13001096 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2009263526 Country of ref document: AU Date of ref document: 20090601 Kind code of ref document: A |