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WO2006011206A1 - Circuit redresseur multiplex - Google Patents

Circuit redresseur multiplex Download PDF

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Publication number
WO2006011206A1
WO2006011206A1 PCT/JP2004/010812 JP2004010812W WO2006011206A1 WO 2006011206 A1 WO2006011206 A1 WO 2006011206A1 JP 2004010812 W JP2004010812 W JP 2004010812W WO 2006011206 A1 WO2006011206 A1 WO 2006011206A1
Authority
WO
WIPO (PCT)
Prior art keywords
phase
rectifier circuit
reactor
transformer
power source
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2004/010812
Other languages
English (en)
Japanese (ja)
Inventor
Shigeo Takata
Shinsaku Kusube
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to CN2004800172661A priority Critical patent/CN1809954B/zh
Priority to JP2006519239A priority patent/JP4440263B2/ja
Priority to GB0525261A priority patent/GB2433653B/en
Priority to PCT/JP2004/010812 priority patent/WO2006011206A1/fr
Publication of WO2006011206A1 publication Critical patent/WO2006011206A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H02M1/12—Arrangements for reducing harmonics from AC input or output
    • 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
    • H02M1/4266—Arrangements for improving power factor of AC input using passive elements
    • 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
    • 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
    • H02M7/08—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 arranged for operation in parallel
    • 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 multiple rectifier circuit that converts a three-phase AC power source into a DC power source with less harmonic components.
  • the most common method for converting three-phase alternating current into direct current is to use a three-phase full-wave rectifier in which six rectifier elements are bridged.
  • the rectifying elements that are energized sequentially every 60 degrees are switched and a DC voltage is output, so the rectified DC voltage has a period of 6 times the power supply frequency and a large amplitude.
  • a voltage lip nore is included. This becomes a harmonic and causes a bad influence on the equipment using the DC power supply.
  • Patent Documents 1 and 2 for a first rectifier circuit that converts a three-phase alternating current into a direct current, a multiplex circuit that transforms six multiplexing alternating voltages whose phases change from the three-phase alternating current power supply A transformer and a second rectifier circuit that converts the six AC voltages output from the multiple transformer to DC are provided, and the output DC voltage of the second rectifier circuit is multiplexed with the output DC voltage of the first rectifier circuit.
  • Multiple rectifier circuits have been proposed that obtain a DC power supply with less harmonic components.
  • Patent Document 1 an equilateral triangular transformer vector diagram showing the relationship between the three-phase AC R-phase, S-phase, and T-phase voltages remains around each vertex.
  • a transformer that transforms a total of six phases of AC voltage located on an arc that divides the arc drawn by connecting the two vertices into three equal parts is shown.
  • Patent Document 2 discloses a transformer that outputs two types of three-phase alternating current by inputting three-phase alternating current and delaying the phase by an electrical angle of ⁇ 20 ° as a multiple transformer. Specifically, this transformer is drawn by connecting the remaining two vertices around each vertex of the equilateral triangle in the equilateral triangle transformer vector diagram showing the relationship of the three-phase AC phase voltages. A straight line that passes through the two points obtained by dividing the arc into three equal parts and each vertex of the equilateral triangle, A transformer that satisfies the transformer vector diagram represented by the hexagon formed by each apex and a straight line parallel to one side, the first and second transformers mounted on the three-phase iron cores, respectively.
  • a second coil wherein one end of the first coil is connected to one end of the second coil having the same polarity and sequentially different phases, and the other end of the first coil has the same polarity, and the one end Are connected to the other ends of the second coils, which are sequentially different in different combinations, and each of a, b, c is a number of 2 or more, the number of the first coil is 2a, A first tap is provided, and the second coil has a number 2b + c, and a second tap is provided at an inner position by the number b from one end, and an inner position by the number b from the other end. A third tap is provided, and the first tap for three phases is used as an input terminal for a three-phase AC voltage.
  • the second tap for 3 minutes is used as a first output terminal for a three-phase AC voltage
  • the third tap for three phases is used as a second output terminal for a three-phase AC voltage
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2002-10646
  • Patent Document 2 JP 2004-120878 A
  • the objective is to zero specific harmonic components centering on the low-order harmonics of the input current in principle.
  • the wave component increases as compared with the case where no multiplexing measure is taken.
  • the power ratio of the multiple transformer selected in principle to suppress low-order harmonics is that the direct current reactor where the multiplexed direct current flows is not. Since it is assumed that a large direct current can be regarded as a direct current with no pulsating current, there is a problem that an increase in the loss of the DC reactor and the accompanying loss will occur in order to realize the effect.
  • the present invention has been made in view of the above. While suppressing an increase in the size of a DC reactor through which multiplexed DC flows, low-order harmonic components are sufficiently suppressed and all harmonics are suppressed.
  • An object is to obtain a multiple rectifier circuit capable of suppressing components in a well-balanced manner. Means for solving the problem
  • the present invention includes a first rectifier circuit that converts a three-phase AC power source into a DC power source, a step-down voltage of the three-phase AC power source, and the three-phase AC power source.
  • a first rectifier circuit that converts a three-phase AC power source into a DC power source, a step-down voltage of the three-phase AC power source, and the three-phase AC power source.
  • the equilateral triangle transformer vector diagram showing the relationship between the phase voltages of the power supply, the arc connecting the second vertex and the second vertex around the first vertex of the equilateral triangle and the second and second A spatial position between the edges connecting the three vertices, the first spatial position separated by 20 degrees or more from the second vertex side and the second spatial position separated by 20 degrees or more from the third vertex side.
  • Multiplexes that transform alternating voltages arranged at six spatial positions between the arcs connecting the remaining two vertices centered on each vertex and each side of the equilateral triangle so as to be located at the spatial location.
  • a transformer and a second rectifier circuit for rectifying six AC voltages having different phases output from the multiple transformer The provided, characterized in that to obtain a multiple DC output said first and second rectifier circuits are connected in parallel.
  • FIG. 1 is a circuit diagram showing a configuration of an inverter circuit using a multiple rectifier circuit according to Embodiment 1 of the present invention. 2] It is a diagram for explaining an example of a winding structure of the multiple transformer shown in FIG.
  • FIG. 3 is a transformer vector diagram illustrating an arrangement relationship of AC voltages transformed by the multiple transformer shown in FIG. 1.
  • FIG. 4 is a diagram showing a simulation result of the input current change in the case where the rectifier circuit shown in Patent Documents 1 and 2 does not use a multiple transformer.
  • FIG. 5 is a diagram showing the result of frequency analysis of the input current change shown in FIG.
  • FIG. 6 is a diagram showing a simulation result of a change in input current in a rectifier circuit using multiple transformers described in Patent Documents 1 and 2.
  • FIG. 7 is a diagram showing the result of frequency analysis of the input current change shown in FIG.
  • FIG. 8] is a diagram showing a simulation result of a change in input current when a DC reactor is added to the rectifier circuit using the multiple transformers shown in Patent Documents 1 and 2.
  • FIG. 9 is a diagram showing the result of frequency analysis of the input current change shown in FIG.
  • FIG. 10 is a diagram showing a simulation result of a change in input current when two AC reactors and a noise filter are excluded in the configuration shown in FIG.
  • FIG. 11 is a diagram showing the result of frequency analysis of the input current change shown in FIG.
  • FIG. 12 is a diagram showing a simulation result of a change in input current when a noise filter is excluded in the configuration shown in FIG. 1 (configuration in which two AC rear tuttles exist). 13] FIG. 13 is a diagram showing the result of frequency analysis of the input current change shown in FIG.
  • FIG. 14 A circuit diagram showing the configuration of an inverter circuit using a multiple rectifier circuit according to Embodiment 2 of the present invention.
  • FIG. 1 is a circuit diagram showing a configuration of an inverter circuit using a multiple rectifier circuit according to Embodiment 1 of the present invention.
  • the inverter circuit generally constitutes a first rectifier circuit 2 that is a three-phase full-wave rectifier for a three-phase AC power source 1 and a smoothing circuit that smoothes the output DC voltage of the first rectifier circuit 2.
  • Inverter that generates AC voltage by switching the terminal voltage (DC voltage) of DC capacitor 3 and smoothing capacitor 4 and smoothing capacitor 4 5, and the motor 6 is driven and controlled by the output AC voltage of the inverter 5.
  • the multiple rectifier circuit according to the first embodiment (1) basically applies the voltage of the three-phase AC power source 1 to the first rectifier circuit 2 provided for the three-phase AC power source 1.
  • Multiplexing transformer 10 that transforms six alternating voltages that are stepped down and different in phase, and rectifies the output alternating voltage of this multiple transformer 10, and multiplexes the rectified output to the rectified output of first rectifier circuit 2.
  • the second rectifier circuit 11 is provided. A configuration example of the multiplex transformer 10 will be described later (Figs. 2 and 3). Similar to the first rectifier circuit 2, the second rectifier circuit 11 includes a diode bridge.
  • the AC rear tuttle 9 is provided at the input stage of the multiple transformer 10.
  • the AC reactor 9 can be configured by the leakage inductance component of the multiple transformer 10.
  • an AC rear tuttle 7 is directly connected to the output end of the three-phase AC power source 1, and the three-phase AC power source 1 is connected to each part via the AC rear tuttle 7.
  • AC voltage ⁇ Ensure that an AC current is applied.
  • the noise filter 8 is connected to the output terminal of the AC reactor 2 and the input terminal of the first rectifier circuit 2 and the AC reactor 9 Between.
  • the circuit portion from the AC rear tutor 7 to the DC rear tuttle 3 surrounded by the broken line A is a lump having a connection end to the three-phase AC power source 1 and a connection end to the smoothing capacitor 4. Since it is a block, it can be handled as an independent structure (power harmonic countermeasure device).
  • FIG. 2 is a diagram illustrating an example of a winding structure of the multiplex transformer 10.
  • FIG. 3 is a transformer outline diagram illustrating the arrangement relationship of the AC voltage transformed by the multiple transformer 10.
  • R-phase iron core 21 is equipped with R-phase first coil 22 and R-phase second coil 23. ing.
  • the R-phase first coil 22 is labeled R7 and R6 at both ends, but an intermediate tap R is provided at a position that equally divides the power in a ratio of a: a.
  • intermediate taps S3 and T2 are provided at positions to divide the power factor having the symbols S7 and T6 at both ends at a ratio of b: c: b.
  • One end R7 of the R-phase first coil 22 and one end S7 of the R-phase second coil 23 have the same polarity.
  • the S-phase iron core 24 is equipped with an S-phase first coil 25 and an S-phase second coil 26.
  • the S-phase first coil 25 is provided with a force S having a sign S7 and a sign S6 at both ends, and an intermediate tap S at a position that equally divides the power in a ratio of a: a.
  • the S-phase second coil 26 is labeled T7 and R6 at both ends, but is provided with intermediate taps T3 and R2 at positions where the power is divided at a ratio of b: c: b.
  • One end S7 of the S-phase first coil 25 and one end ⁇ 7 of the S-phase second coil 26 have the same polarity.
  • first phase coil 28 and the second phase coil 29 are mounted on the phase iron core 27.
  • an intermediate tap ⁇ is provided at a position that equally divides the force ⁇ having the symbols ⁇ 7 and ⁇ 6 at both ends at a ratio of a: a.
  • intermediate taps R3 and S2 are provided at positions at which the force coefficients having R7 and S6 at both ends are divided at a ratio of b: c: b.
  • One end T7 of the T-phase first coil 28 and one end R7 of the T-phase second coil 29 have the same polarity.
  • one end R7 of the R-phase first coil 22 is connected to one end R7 of the T-phase second coil,
  • the other end R6 of one coil 22 is connected to the other end R6 of the S-phase second coil 26.
  • One end S7 of the S-phase first coil 25 is connected to one end S7 of the R-phase second coil 23, and the other end S6 of the S-phase first coil 25 is connected to the other end S6 of the T-phase second coil 29.
  • One end T7 of the T-phase first coil 28 is connected to one end S7 of the S-phase second coil 26, and the other end T6 of the T-phase first coil 28 is connected to the other end T6 of the R-phase second coil 23.
  • the power ratio a: b: c is, for example, 41:88:83.
  • the multiplex transformer 10 is configured to have the above connection relationship, and the intermediate taps R, S, and T are input terminals, and are the R phase, S phase, and negative phase of the three-phase AC power source 1. Corresponding phase wires are connected.
  • the intermediate taps S3, T2, T3, R2, R3, and S2 are output terminals and are connected to corresponding input terminals of the second rectifier circuit 11.
  • FIG. 2 shows the layout of the map. That is, the multi-transformer 10 adjusts the power ratio a: b: c shown in FIG. 2 and transforms the equilateral triangle indicating the phase relationship of the phase voltages of the three-phase AC power source 1 as shown in FIG.
  • the vertices of an equilateral triangle are R, S, and T, for example, between the arc connecting the remaining vertices S and T with the vertex R as the center and the side connecting the vertices S and T Centered on each vertex so that it is located at a first spatial position 31 that is more than 20 degrees away from the vertex S side and a second spatial position 32 that is more than 20 degrees away from the vertex T side.
  • the AC voltage arranged at the six spatial positions 31 36 between the arcs connecting the remaining two vertices and each side of the equilateral triangle is transformed.
  • the multiplex rectifier 10 2 when the phase voltage is expressed, the multiplex rectifier 10 2 is applied to the three-phase AC voltage shifted by 120 ° by the R phase, S phase, and T phase.
  • the secondary voltage has a peak value that is lower than the R-phase, S-phase, and T-phase voltages, but has the highest voltage or the lowest voltage in the comparison.
  • the second rectifier circuit 11 When the second rectifier circuit 11 is connected to the first rectifier circuit 2 and the second rectifier circuit 11 is connected to the first rectifier circuit 2, the second rectifier circuit 11 can flow in the period of the highest voltage or the lowest voltage.
  • the current passing period in the first rectifier circuit 2 is reduced.
  • the conduction period of the second rectifier circuit 11 occurs.
  • the current through the multiple transformer 10 is shunted to the R, S, and T phases on the primary side by the transformer connection. Therefore, the currents of the S and ⁇ phases as a whole are close to a sine wave with suppressed harmonics.
  • the power ratio of the multiple transformers shown in Patent Documents 1 and 2 is that the six-phase AC voltage that is transformed is the rest of the remaining voltage centering on a certain apex as described in FIG. It is determined to be placed at a position on an arc obtained by dividing the arc connecting the two vertices into three equal parts.
  • Patent Documents 1 and 2 show that the multiple ratio of the multiple transformers is the same as a result of the different expression methods.
  • the AC reactors 7 and 9 shown in FIG. 1 are not shown, and there is no description that suggests their existence.
  • the AC reactors 7 and 9 shown in Fig. 1 are not present, the voltage of the three-phase AC power source 1 is set to 400V'50Hz between phases, and the capacities of the DC reactor 3 and the smoothing capacitor 4 are about 8kW.
  • the load was 7900W with a typical 2.9mH and 1650uF (assuming two series of 3300uF capacitors in series).
  • FIG. 4 is a diagram showing a simulation result of a change in input current when a multiple transformer is not used in the rectifier circuit shown in Patent Documents 1 and 2.
  • FIG. 5 is a diagram showing the frequency analysis result of the input current change shown in FIG.
  • the three-phase AC power source 1 is directly connected to the first rectifier circuit 2 and there is no route for the AC reactor 9, the multiple transformer 10, and the second rectifier circuit 11.
  • the power supply frequency 50 Hz
  • the harmonics are shown in order from the lowest order.
  • FIG. 6 is a diagram showing a simulation result of the input current change in the rectifier circuit using the multiple transformer disclosed in Patent Documents 1 and 2.
  • FIG. FIG. 7 is a diagram showing the result of frequency analysis of the input current change shown in FIG.
  • the three-phase AC power source 1 is directly connected to the first
  • the multiple transformer 10 and the second rectifier circuit 11 are connected to the first rectifier circuit 2 in parallel.
  • the harmonic suppression effect appears.
  • low-order harmonics cannot be said to be sufficiently reduced as expected in Patent Documents 1 and 2.
  • the 17th and 19th orders are 5.85% and 3.87% of the fundamental wave, respectively.
  • FIG. 8 is a diagram showing a simulation result of a change in input current when a DC reactor is added to the rectifier circuit using the multiple transformers disclosed in Patent Documents 1 and 2.
  • FIG. 9 is a diagram showing the result of frequency analysis of the input current change shown in FIG. When 10mH of DC rear tuttle, which is not taken into account in Patent Documents 1 and 2, is added, the result is as shown in Fig. 8 and Fig. 9, and the lower harmonic components such as the fifth order are suppressed. Are 5.25% and 4.27% of the fundamental wave, respectively.
  • the power ratio of the multiple transformer 10 is such that the transformed six-phase AC voltage is expressed as a transformer vector as described in FIG.
  • the simulation is performed by setting the voltage of the three-phase AC power source 1 to 400 V ⁇ 50 Hz between phases, and the capacity of the DC reactor 3 and the smoothing capacitor 4 to be 2 9mH and 1650uF (assuming two series of 3300uF capacitors in series) were used with a load of 7900W.
  • FIG. 10 is a diagram showing a simulation result of the input current change in the configuration shown in FIG. 1 when two AC reactors and a noise filter are excluded.
  • FIG. 11 is a diagram showing the result of frequency analysis of the input current change shown in FIG. As shown in Fig. 10 and Fig. 11, the low-order harmonic components are kept low overall, and the remaining 17th and 19th orders are 4.74% and 3.62% of the fundamental wave, respectively. It has become. [0043] With regard to suppression of power supply harmonics, fifth-order and seventh-order suppression is most required in three phases, but the overall balance is also required as a standard value.
  • FIG. 12 is a diagram showing a simulation result of the input current change when the noise filter is excluded from the configuration shown in FIG. 1 (a configuration in which two AC rear tuttles are present).
  • the power ratio of the multiple transformer 10 is 0.994 when one side of an equilateral triangle is 1 as the line voltage in this invention, and corresponds to, for example, 22 ° in angle from the side.
  • the energization angle in the first rectifier circuit 2 is increased as compared with the conventional techniques (Patent Documents 1 and 2).
  • the current duty of the second rectifier circuit 11, and thus the multiple transformer 10, is reduced, and the effect of keeping the current capacity low can also be expected.
  • the capacity of the DC reactor 3 was not changed, but by increasing the capacity, low-order harmonic components can be suppressed. Waves can be reduced.
  • the capacity of the AC reactors 7 and 9 can be selected depending on the maximum capacity of the power equipment that is considered to satisfy IEC_61000_3_2 up to an input current of 16A / phase (about 10.5kW). There is a possibility that the capacity can be selected.
  • the multiple rectifier circuit shown in Fig. 1 is always connected from the time of shipment.
  • Multiple transformer 10, first rectifier circuit 2, second rectifier circuit 11, DC rear tuttle 3, AC rear tutor 7, and noise filter 8 if necessary
  • the electronic components such as the smoothing capacitor 4, the inverse converter 5 and the control circuit thereof arranged in the subsequent stage of the rectifier circuits 2 and 11.
  • the parts to be used as the separate structure (power harmonic countermeasure device) A need not be all of the above parts, but may be selected as appropriate according to the requirements of the product structure.
  • the power ratio of the multiple transformer is selected not only to a specific order but also to a power ratio that can suppress harmonics in a balanced manner as a whole, and further harmonics.
  • AC reactors were also introduced, so that all harmonic components were suppressed while sufficiently suppressing low-order harmonic components while suppressing the increase in size of the DC reactor through which the multiplexed DC flows. Can be controlled in a well-balanced manner, and will be able to meet not only domestic standards but also European standards.
  • FIG. 14 shows an inverter circuit using a multiple rectifier circuit according to Embodiment 2 of the present invention. It is a circuit diagram which shows a structure.
  • components that are the same as or equivalent to the components shown in FIG. 1 (Embodiment 1) are assigned the same reference numerals. Here, the description will focus on the parts related to the second embodiment.
  • a DC reactor whose parallel connection end and one end of the first rectifier circuit 2 and the second rectifier circuit 11 are connected to the smoothing capacitor 4 is used. Between the other end of 3, a direct current reactor 12 is arranged. That is, in the second embodiment, the DC reactor is divided into a DC reactor, a DC reactor 3 and a DC reactor 12.
  • the DC rear tuttle 12 is not necessarily required, but is arranged because it is effective to increase the L value of the DC rear tuttle in order to improve the harmonic suppression level.
  • the circuit part AC reactor 9, multiple transformer 10, second rectifier circuit 11, DC reactor 12
  • surrounded by broken line B in the figure is set as a separate structure (power harmonic countermeasure device). Therefore, it can be configured to be retrofitted.
  • power supply harmonic countermeasures are usually sufficient only with DC reactor 3, and when additional countermeasures are selectively introduced, specifically, to specific customer guidelines for power supply harmonics. If a response is required, it can be dealt with by retrofitting another structure (power harmonic countermeasure device) B. In this way, it is possible to suppress the increase in size, weight, and cost of standard specification products.
  • the capacity of the DC reactor and capacitor is assumed to be about 8kW.
  • the capacity of the DC reactor and capacitor is assumed to be about 8kW.
  • the capacity of the smoothing capacitor 4 is 3300uF
  • the L value of the AC rear tuttle 9 is 0. Set to 5mH.
  • Embodiment 3 As described above, according to the second embodiment, the same operation and effect as those of the first embodiment can be obtained, and the increase in size, weight, and cost of standard specification products can be suppressed. be able to. [0060] Embodiment 3.
  • FIG. 15 is a circuit diagram showing a configuration of an inverter circuit using a multiple rectifier circuit according to Embodiment 3 of the present invention.
  • components that are the same as or equivalent to the components shown in FIG. 14 are assigned the same reference numerals.
  • the description will focus on the parts related to the third embodiment.
  • the rectifier circuit 13, the direct current reactor 3, the smoothing capacitor 4, and the inverse converter 5 are general inverter circuits.
  • the three-phase AC power source 1 side AC rear tuttle 7 to noise filter 8 the first rectifier circuit 2, the AC rear tuttle 9, the multiple transformer 10, the second rectifier circuit 11 and DC Reactor 11 are prepared as separate structures (power supply harmonic countermeasure device) C so that the external connection end of DC Reactor 11 and the reference potential connection end can be connected to the input of rectifier circuit 13 of the inverter circuit. ing.
  • the power harmonic countermeasure device C is simply additionally inserted between the three-phase AC power source 1 and the rectifier circuit input unit of the inverter circuit.
  • the effect of facilitating retrofit can be obtained.
  • the structure A shown in the first embodiment (Fig. 1) is also a three-phase AC power source 1 as a power supply harmonic countermeasure device. Can be retrofitted between the inverter circuit and the rectifier circuit input of the inverter circuit.
  • the present invention is used for the rectifying portion of the inverter circuit, but it is needless to say that the same configuration can be used for other DC loads.
  • the load is not particularly limited.
  • the rectifier circuit is generally a diode rectifier circuit that does not have a regenerative converter.
  • the motor 6 shown in FIGS. 1, 14, and 15 is a compressor motor in the air conditioner.
  • the motor 6 shown in FIGS. 1, 14, and 15 is a compressor motor in the air conditioner.
  • power inverters are often regarded as a problem because of the high inverter conversion rate of products and the high capacity occupancy rate of power equipment.
  • a compressor motor driven by an inverter in an air conditioner is a suitable application because it has low inertia and is unlikely to generate regenerative energy.
  • the air conditioner generally includes a fan for heat exchange around the inverter circuit, and when the multiple transformer section of the present invention is cooled, the airflow can be used, so no additional parts are required. There are also advantages.
  • the multiple rectifier circuit according to the present invention is useful as a rectifier circuit that can support not only domestic standards but also European standards, and in particular, as a rectifier circuit that can flexibly respond to required levels. Is preferred.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

L’invention concerne un transformateur multiplex capable non seulement de supprimer suffisamment des composantes harmoniques d’ordre faible mais également de supprimer toutes les composantes harmoniques avec un bon équilibre tout en supprimant une augmentation de la taille d’un réacteur à courant continu passant un courant continu multiplexé. Étant donné que le rapport du nombre de tours du transformateur multiplex (10) est sélectionné pour être un rapport qui peut non seulement supprimer des harmoniques d’un ordre spécifié mais également supprimer toutes les harmoniques avec un bon équilibre et en outre que des réacteurs à courant alternatif (9, 7) sont insérés afin de supprimer les harmoniques, toutes les composantes harmoniques peuvent être supprimées avec un bon équilibre en plus d’une suppression suffisante de composantes harmoniques d’ordre faible tout en supprimant une augmentation de la taille du réacteur à courant continu (3) passant un courant continu multiplexé, et non seulement les régulations nationales, mais aussi les régulations européennes peuvent être traitées.
PCT/JP2004/010812 2004-07-29 2004-07-29 Circuit redresseur multiplex Ceased WO2006011206A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2004800172661A CN1809954B (zh) 2004-07-29 2004-07-29 多路整流电路
JP2006519239A JP4440263B2 (ja) 2004-07-29 2004-07-29 多重整流回路
GB0525261A GB2433653B (en) 2004-07-29 2004-07-29 Multiplex rectifier circuit
PCT/JP2004/010812 WO2006011206A1 (fr) 2004-07-29 2004-07-29 Circuit redresseur multiplex

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CN102983730A (zh) * 2012-12-31 2013-03-20 哈尔滨工业大学 双反星形整流系统的直流侧谐波抑制系统与方法
US11450477B2 (en) * 2020-03-31 2022-09-20 Karma Automotive Llc Phase-shift autotransformer, multi-pulse rectifier systems and fast charging

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US8315071B2 (en) 2009-11-03 2012-11-20 Honeywell International Inc. Composite 24-pulse AC to DC power converter having a main rectifier and multiple auxiliary rectifiers
US9088222B2 (en) * 2011-11-17 2015-07-21 Qualcomm Incorporated Systems, methods, and apparatus for a high power factor single phase rectifier

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JP2002010646A (ja) * 2000-06-15 2002-01-11 Toshiba Corp 整流器及び変圧器
JP2004120878A (ja) * 2002-09-25 2004-04-15 Toshiba Kyaria Kk 変圧器及びこれを用いた整流器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983730A (zh) * 2012-12-31 2013-03-20 哈尔滨工业大学 双反星形整流系统的直流侧谐波抑制系统与方法
US11450477B2 (en) * 2020-03-31 2022-09-20 Karma Automotive Llc Phase-shift autotransformer, multi-pulse rectifier systems and fast charging

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CN1809954B (zh) 2010-05-12
CN1809954A (zh) 2006-07-26
GB2433653A (en) 2007-06-27
JP4440263B2 (ja) 2010-03-24
GB2433653B (en) 2008-01-09
JPWO2006011206A1 (ja) 2008-05-01

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