WO2016169281A1 - Convertisseur auxiliaire et véhicule - Google Patents

Convertisseur auxiliaire et véhicule Download PDF

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Publication number
WO2016169281A1
WO2016169281A1 PCT/CN2015/097490 CN2015097490W WO2016169281A1 WO 2016169281 A1 WO2016169281 A1 WO 2016169281A1 CN 2015097490 W CN2015097490 W CN 2015097490W WO 2016169281 A1 WO2016169281 A1 WO 2016169281A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
auxiliary converter
phase
voltage
electrically connected
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/CN2015/097490
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English (en)
Chinese (zh)
Inventor
顾秀江
唐子辉
高永军
刘峰东
宜雷
丁巧娅
蒋学君
朱剑波
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.)
CRRC Yongji Electric Co Ltd
Original Assignee
Yongji Xinshisu Electric Equipment Co Ltd
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 Yongji Xinshisu Electric Equipment Co Ltd filed Critical Yongji Xinshisu Electric Equipment Co Ltd
Publication of WO2016169281A1 publication Critical patent/WO2016169281A1/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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters

Definitions

  • the present invention relates to the field of power electronics, and in particular, to an auxiliary converter and a vehicle.
  • the inverter technology of the converter device mainly adopts the pulse width modulation method, and the characteristics of the pulse width modulation determine that the output voltage of the inverter contains more high-order harmonic components, so the filter must be used for filtering processing.
  • the output waveform reaches a smooth sinusoidal waveform, reducing the effects of harmonics on the load.
  • the function of filtering is performed after the filter is placed in the transformer.
  • the pulse-width modulated wave outputted by the inverter is stepped down, isolated, and level-converted by a three-phase transformer, and then passed through a three-phase reactor or three single-phase reactors and a filter formed by a three-phase capacitor to obtain a sinusoidal AC power supply.
  • the above combination of the filter, the transformer and the inverter results in a large loss of the reactor in the filter and a high heat dissipation, resulting in a small output power of the auxiliary converter.
  • the invention provides an auxiliary converter and a vehicle, which are used for solving the problems that the reactor has large loss and high heat dissipation in the prior art, and the output power of the auxiliary converter is small.
  • a first aspect of the invention provides an auxiliary converter comprising:
  • the three-phase inverter is electrically connected to the DC power source, and inverts a DC voltage output by the DC power source to obtain a PWM waveform voltage;
  • the filter is electrically connected to the three-phase inverter, and filters the PWM waveform voltage output by the three-phase inverter to obtain a sine wave voltage;
  • the transformer is electrically connected to the filter, and performs voltage conversion on the sine wave voltage output by the filter to obtain an AC power source.
  • the auxiliary converter further includes: a DC filter inductor;
  • the DC filter inductors are electrically connected to the DC power source and the three-phase inverter, respectively, for filtering harmonic components of the DC voltage.
  • the filter includes: three single-phase reactors and three-phase capacitors.
  • the inductance of the single-phase reactor is 10 mH.
  • the three-phase windings of the three-phase capacitor are connected end to end and have a triangular structure.
  • the filter is an LC filter, an RC filter, or an active filter.
  • Another aspect of the invention provides a vehicle comprising: an auxiliary converter as described above.
  • the filter can filter the high voltage voltage output by the inverter, and the high voltage of the inverter output is performed because the output power of the inverter is constant. Filtering can reduce the loss of the reactor, reduce the heat dissipation of the reactor, and increase the output power of the auxiliary converter.
  • FIG. 1 is a schematic structural view of an embodiment of an auxiliary converter provided by the present invention.
  • FIG. 2 is a circuit diagram of an embodiment of an auxiliary converter provided by the present invention.
  • FIG. 1 is a schematic structural diagram of an auxiliary converter according to an embodiment of the present invention. As shown in FIG. 1, the DC power supply 11, the three-phase inverter 12, the filter 13, and the transformer 14 are included.
  • the three-phase inverter 12 is electrically connected to the DC power source 11 and inverts the DC voltage output from the DC power source 11 to obtain a Pulse Width Modulation (PWM) waveform voltage.
  • PWM Pulse Width Modulation
  • the three-phase inverter 12 is provided with a modulation ratio, and the three-phase inverter 12 can pass the modulation ratio
  • the PWM waveform voltage remains constant.
  • the filter 13 is electrically connected to the three-phase inverter 12, and filters the PWM waveform voltage output from the three-phase inverter 12 to obtain a sine wave voltage.
  • the transformer 14 is electrically connected to the filter 13, and voltage-converts the sine wave voltage output from the filter 13 to obtain an AC power source.
  • the filter 13 may include three single-phase reactors and three-phase capacitors, and the three-phase capacitors have a triangular structure or a star structure.
  • the three-phase winding of the three-phase capacitor can be connected end to end, so that the three-phase capacitor has a triangular structure.
  • the inductance of the single-phase reactor can be 10 mH, and the harmonic component in the PWM waveform voltage generated by the inverter is filtered out.
  • the PWM waveform voltage obtained by inverting the DC voltage by the three-phase inverter 12 is relatively high, for example, greater than 1250 V, and the voltage is filtered, and the current can be reduced when the power is constant, thereby reducing the reactor in the filter. Loss, reducing the heat dissipation of the reactor.
  • the filter 13 filters the PWM waveform voltage outputted by the three-phase inverter 12 to obtain a voltage value of a sine wave voltage of 1250V AC power, and the transformer 14 is used to convert the 1250V AC power to an AC380V 50Hz AC power supply. Load on electric rolling stock.
  • the filter 13 may be a filter capable of filtering a PWM waveform voltage, such as an LC filter, an RC filter, or an active filter.
  • a filter capable of filtering a PWM waveform voltage such as an LC filter, an RC filter, or an active filter.
  • the circuit of the filter 13 and the transformer 14 can be seen in FIG. 2.
  • FIG. 2 is a schematic circuit diagram of the auxiliary converter provided by the present invention.
  • the auxiliary converter may further include: a DC filter inductor; the DC filter inductor may be electrically connected to the DC power source 11 and the three-phase inverter 12 for filtering harmonic components of the DC voltage.
  • the reactor and the transformer 14 in the filter 13 can be separately placed to reduce noise and to facilitate ventilation and cooling of the reactor and the transformer 14.
  • the filter can filter the high voltage voltage output by the inverter, and the high voltage of the inverter is output because the output power of the inverter is constant. Filtering can reduce the loss of the reactor, reduce the heat dissipation of the reactor, and increase the output power of the auxiliary converter.
  • a vehicle including the auxiliary converter of the above embodiment is also protected in the present invention.
  • the vehicle of the auxiliary converter described above may specifically be a 350 km standard EMU.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Dc-Dc Converters (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un convertisseur auxiliaire et un véhicule. Le convertisseur auxiliaire comprend une alimentation électrique en courant continu (11), un onduleur triphasé (12), un filtre (13) et un transformateur (14). L'onduleur triphasé est connecté électriquement à l'alimentation électrique en courant continu. Le filtre est connecté électriquement à l'onduleur triphasé. Le transformateur est connecté électriquement au filtre. Le filtre est monté derrière l'inverseur et devant le transformateur, ce qui permet de réduire une perte dans un réacteur dans le filtre, de réduire une quantité de dissipation de chaleur du réacteur et d'augmenter une puissance de sortie du convertisseur auxiliaire.
PCT/CN2015/097490 2015-04-21 2015-12-15 Convertisseur auxiliaire et véhicule Ceased WO2016169281A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510191944.6A CN104767366A (zh) 2015-04-21 2015-04-21 辅助变流器和车辆
CN201510191944.6 2015-04-21

Publications (1)

Publication Number Publication Date
WO2016169281A1 true WO2016169281A1 (fr) 2016-10-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/097490 Ceased WO2016169281A1 (fr) 2015-04-21 2015-12-15 Convertisseur auxiliaire et véhicule

Country Status (2)

Country Link
CN (1) CN104767366A (fr)
WO (1) WO2016169281A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020506159A (ja) * 2017-02-14 2020-02-27 ノバルティス アーゲー 組み合わせでのＷｎｔ阻害剤および抗ＰＤ−１抗体分子の投与スケジュール
CN115833638A (zh) * 2021-11-12 2023-03-21 湖南一鸣科技有限公司 机车逆变电源及其壳体组件

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104767366A (zh) * 2015-04-21 2015-07-08 永济新时速电机电器有限责任公司 辅助变流器和车辆
CN106218414A (zh) * 2016-08-26 2016-12-14 北京公共交通控股（集团）有限公司 无轨电车车载用电设备的供电装置及供电方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102739099A (zh) * 2012-05-24 2012-10-17 青岛四方车辆研究所有限公司 跨座式单轨列车辅助电源装置
CN102916440A (zh) * 2012-09-20 2013-02-06 中国电力科学研究院 一种基于电池储能系统的功率转换系统及其控制方法
CN104767366A (zh) * 2015-04-21 2015-07-08 永济新时速电机电器有限责任公司 辅助变流器和车辆

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102739099A (zh) * 2012-05-24 2012-10-17 青岛四方车辆研究所有限公司 跨座式单轨列车辅助电源装置
CN102916440A (zh) * 2012-09-20 2013-02-06 中国电力科学研究院 一种基于电池储能系统的功率转换系统及其控制方法
CN104767366A (zh) * 2015-04-21 2015-07-08 永济新时速电机电器有限责任公司 辅助变流器和车辆

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020506159A (ja) * 2017-02-14 2020-02-27 ノバルティス アーゲー 組み合わせでのＷｎｔ阻害剤および抗ＰＤ−１抗体分子の投与スケジュール
CN115833638A (zh) * 2021-11-12 2023-03-21 湖南一鸣科技有限公司 机车逆变电源及其壳体组件

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