WO2012010065A1 - Topologie pour convertisseur de fréquence haute tension mono-quadrant, sans transformateur - Google Patents

Topologie pour convertisseur de fréquence haute tension mono-quadrant, sans transformateur Download PDF

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Publication number
WO2012010065A1
WO2012010065A1 PCT/CN2011/077136 CN2011077136W WO2012010065A1 WO 2012010065 A1 WO2012010065 A1 WO 2012010065A1 CN 2011077136 W CN2011077136 W CN 2011077136W WO 2012010065 A1 WO2012010065 A1 WO 2012010065A1
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WO
WIPO (PCT)
Prior art keywords
circuit
voltage
inverter
inverter circuit
phase
Prior art date
Application number
PCT/CN2011/077136
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English (en)
Chinese (zh)
Inventor
左强
张其生
李旷
赵淑玉
王振
Original Assignee
荣信电力电子股份有限公司
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.)
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Application filed by 荣信电力电子股份有限公司 filed Critical 荣信电力电子股份有限公司
Publication of WO2012010065A1 publication Critical patent/WO2012010065A1/fr

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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
    • 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
    • H02M7/42—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
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
    • 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
    • H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
    • 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
    • H02M1/36—Means for starting or stopping converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage

Definitions

  • the invention relates to a single quadrant high voltage frequency converter topology, in particular to a transformerless single quadrant high voltage frequency converter topology.
  • variable frequency speed control technology high-voltage variable frequency speed regulation technology as a large-capacity transmission has also been widely used.
  • the high-voltage inverter With its high efficiency, high power factor and high reliability, the high-voltage inverter has ended the energy and labor waste caused by the traditional method, prolonged the service life of motors, fans and pumps, improved the production process and improved production efficiency.
  • industries such as steel, petroleum, coal, water, and electricity.
  • the current high-voltage inverters are composed of control cabinets, transformer cabinets and power cabinets.
  • the transformer cabinet occupies a large proportion of cost and volume in the whole high-voltage inverter system, and the higher the capacity of the high-voltage inverter, the higher the capacity requirement of the transformer, so that the cost of the high-voltage inverter is also straight. rise. Summary of the invention
  • the object of the present invention is to provide a transformerless single-quadrant high-voltage frequency converter topology structure, which enables a single-quadrant high-voltage frequency converter to achieve high-voltage frequency conversion without a transformer; the high-voltage frequency converter using the topology can greatly reduce The overall size and cost of the high-voltage inverter has an absolute competitive advantage in the market.
  • a transformerless single-quadrant high-voltage frequency converter topology includes an LC filter circuit, a high-voltage charging circuit, a rectifier circuit, and an inverter circuit. After the high-voltage power grid signal is filtered by the LC filter circuit, the high-voltage charging circuit enters the rectifier circuit, and the rectifier circuit.
  • the three-phase uncontrollable rectification system is composed of a plurality of diodes in series; the rectified DC voltage is used as the DC power supply of the inverter circuit, and the inverter circuit is composed of a plurality of power units connected in series, and the output end of the inverter circuit is connected with an inductance.
  • the power unit of the inverter circuit is a half bridge structure composed of two IGBT switching devices.
  • the power unit of the inverter circuit is an H-bridge structure composed of four IGBT switching devices.
  • the rectifier circuit and the inverter circuit are three-phase, and the rectifier circuit is formed by connecting an even number of n diodes in series, and is divided into two groups, the number of power units of each group is n/2, and the input end of each phase of the rectifier circuit
  • the midpoint of the two groups of cells; each phase of the inverter circuit is made up of even n power units connected in series, divided into upper and lower two groups, the number of power units in each group is n/2, and the output end of each phase is two At the midpoint of the group unit, and the output is connected to each group of units with a coupled or uncoupled inductor.
  • the high-voltage inverter has no transformer, eliminating the transformer cabinet, and the cost of the high-voltage inverter is reduced by at least half; 2) The high-voltage inverter has no transformer, and the transformer cabinet is omitted. The volume of the high-voltage inverter is reduced by at least half, and the floor space on the site is reduced by at least half;
  • the high-voltage inverter has no transformer, eliminating the transformer cabinet.
  • the weight of the high-voltage inverter is reduced by at least half, and the transportation cost is also reduced accordingly;
  • the high-voltage inverter has no transformer, and the transformer cabinet is omitted.
  • the structure of the high-voltage inverter is much simpler, and the production cycle is reduced by at least half, which is also conducive to on-site installation, commissioning and maintenance;
  • the high-voltage inverter has no transformer, which saves the transformer cabinet, saves the energy consumption of the transformer, and does not need to consider the temperature rise effect of the high-voltage inverter on the transformer;
  • the high-voltage inverter has no transformer, eliminating the transformer cabinet.
  • the high-voltage inverter has an absolute market competitive advantage.
  • Figure 1 is a topological structural diagram of a transformerless single-quadrant high-voltage inverter composed of a half-bridge power unit;
  • Figure 2 is a topological structural diagram of a transformerless single-quadrant high-voltage inverter composed of H-bridge power units;
  • Figure 3 is a current flow diagram in a half-bridge power unit
  • FIG. 4 is a current flow diagram in the H-bridge power unit. detailed description
  • a transformerless single-quadrant high-voltage inverter topology including LC filter circuit, high-voltage charging circuit, rectifier circuit, inverter circuit, high-voltage power grid signal filtered by LC filter circuit, high-voltage charging
  • the loop enters the rectifier circuit, and the rectifier circuit is composed of a plurality of diodes to form a three-phase uncontrollable rectification system, and the capacitor voltage of each power unit is constant; the rectified DC voltage is used as the DC power source of the inverter circuit, and the inverter circuit is composed of multiple power units.
  • the power unit can be a half bridge (Fig. 1) or an H bridge (Fig. 2) structure, which can meet the requirements of PWM waveform generation.
  • the high-voltage charging circuit is composed of a charging resistor R and a switch KM in parallel, and its input terminal is connected to the inductance L of the LC circuit, and its output terminal is connected to the rectifier circuit.
  • the rectifier circuit and the inverter circuit are three-phase, and the rectifier circuit is formed by connecting an even number of n diodes in series, and is divided into two groups, the number of power units of each group is n/2, and the input end of each phase of the rectifier circuit
  • the midpoint of the two groups of cells; each phase of the inverter circuit is made up of even n power units connected in series, divided into upper and lower two groups, the number of power units in each group is n/2, and the output end of each phase is two At the midpoint of the group unit, and the output and each group of units are connected by a coupled or uncoupled inductor to make the output waveform more stable and smooth.
  • the current flows from A to B via IGBT2, and the power unit output level of the half-bridge inverter circuit is “0”.
  • the current flows through the freewheeling diode D2 from B to A, and the power unit output level of the half-bridge inverter circuit is "0".
  • the current flows through the freewheeling diode D1, and then flows from A to B through the DC-side capacitor C.
  • the power unit output level of the half-bridge inverter circuit is "1".
  • the current flows through IGBT2, DC side capacitor C, IGBT3, from B to A, or current through freewheeling diode D3, DC side capacitor C, freewheeling diode D2, from A to B, at this time using H bridge
  • the power unit output level of the inverter circuit is "1".
  • the current flows through the freewheeling diode Dl, IGBT3, from B to A, or current through the freewheeling diode D3, IGBT1, from A to B, at this time using the H-bridge inverter circuit power unit output level "0".
  • the current flows through the freewheeling diode Dl, the DC side capacitor C, and the freewheeling diode D4, from B to A, or the current flows through the IGBT4, the DC side capacitor C, and the IGBT1, from A to B.
  • the H bridge is used.
  • the power unit output level of the inverter circuit is "-1".
  • the topology high-voltage power grid directly enters the high-voltage inverter rectifier circuit through the LC filter circuit and the high-voltage charging circuit, and a three-phase uncontrollable rectification system is composed of a plurality of diodes, and the capacitance voltage of each power unit is constant; Inductive or uncoupled inductors make the output waveform more stable and smooth.
  • Each power unit inverter circuit can meet the requirements of PWM waveform generation by using half bridge or H bridge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

Le circuit redresseur comprend plusieurs diodes montées en série de façon à former un système redresseur triphasé non commandé. La tension du courant continu redressé (DC) sert d'alimentation électrique en courant continu du circuit onduleur. Ce circuit onduleur comprend plusieurs unités de puissance montées en série. Une extrémité de sortie du circuit onduleur est connectée à un inducteur (L). L'unité de puissance du circuit onduleur présente une structure en demi-pont ou une structure de pont en H. Cette topologie permet au convertisseur de fréquence haute tension mono-quadrant d'effectuer la conversion de fréquence haute tension sans utiliser de transformateur, tout en réduisant fortement le volume et le prix d'ensemble du convertisseur de fréquence haute tension.
PCT/CN2011/077136 2010-07-22 2011-07-14 Topologie pour convertisseur de fréquence haute tension mono-quadrant, sans transformateur WO2012010065A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010233693.0 2010-07-22
CN2010102336930A CN102013814A (zh) 2010-07-22 2010-07-22 一种无变压器的单象限高压变频器拓扑结构

Publications (1)

Publication Number Publication Date
WO2012010065A1 true WO2012010065A1 (fr) 2012-01-26

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CN (1) CN102013814A (fr)
WO (1) WO2012010065A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013135502A3 (fr) * 2012-03-15 2014-07-10 Siemens Aktiengesellschaft Convertisseur à cellules multiples
CN108880278A (zh) * 2018-08-01 2018-11-23 山东欧瑞安电气有限公司 一种1140v永磁直驱式变频电机一体机主回路结构
CN109283418A (zh) * 2018-11-28 2019-01-29 天津农学院 一种通用变频器的出厂功率测试试验方法
US11251734B2 (en) 2017-09-22 2022-02-15 Janislav SEGA Zero to low speed operation of a sensorless brushless DC motor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102013814A (zh) * 2010-07-22 2011-04-13 荣信电力电子股份有限公司 一种无变压器的单象限高压变频器拓扑结构
CN108551267B (zh) * 2018-06-25 2024-03-08 中国大唐集团科学技术研究院有限公司华中分公司 功率单元组成的高压变频装置
CN111464109A (zh) * 2020-03-26 2020-07-28 新风光电子科技股份有限公司 一种10kV高压变频电机一体机电气拓扑结构

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WO2010040388A1 (fr) * 2008-10-07 2010-04-15 Abb Technology Ag Convertisseur à plusieurs niveaux et procédé de compensation de la puissance active et réactive dans un réseau à haute tension
CN201774459U (zh) * 2010-07-22 2011-03-23 荣信电力电子股份有限公司 一种无变压器的单象限高压变频器拓扑结构
CN102013814A (zh) * 2010-07-22 2011-04-13 荣信电力电子股份有限公司 一种无变压器的单象限高压变频器拓扑结构

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WO2010040388A1 (fr) * 2008-10-07 2010-04-15 Abb Technology Ag Convertisseur à plusieurs niveaux et procédé de compensation de la puissance active et réactive dans un réseau à haute tension
CN201774459U (zh) * 2010-07-22 2011-03-23 荣信电力电子股份有限公司 一种无变压器的单象限高压变频器拓扑结构
CN102013814A (zh) * 2010-07-22 2011-04-13 荣信电力电子股份有限公司 一种无变压器的单象限高压变频器拓扑结构

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KONSTANTINOU, G.S . ET AL.: "Performance Evaluation of Half-Bridge Cascaded Multilevel Converters Operated with Multicarrier Sinusoidal PWM Techniques", INDUSTRIAL ELECTRONICS AND APPLICATIONS, 2009. ICIEA 2009, 4TH IEEE CONFERENCE., 30 June 2009 (2009-06-30), pages 3399 - 3401 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013135502A3 (fr) * 2012-03-15 2014-07-10 Siemens Aktiengesellschaft Convertisseur à cellules multiples
US11251734B2 (en) 2017-09-22 2022-02-15 Janislav SEGA Zero to low speed operation of a sensorless brushless DC motor
US11264930B2 (en) 2017-09-22 2022-03-01 Janislav SEGA Low to high speed operation of a sensorless brushless DC motor
US11277086B2 (en) 2017-09-22 2022-03-15 Janislav SEGA Radially symmetric three-phase optimized power control PCB layout
US11309819B2 (en) 2017-09-22 2022-04-19 Janislav SEGA Initial rotor position detection in a brushless DC motor
CN108880278A (zh) * 2018-08-01 2018-11-23 山东欧瑞安电气有限公司 一种1140v永磁直驱式变频电机一体机主回路结构
CN109283418A (zh) * 2018-11-28 2019-01-29 天津农学院 一种通用变频器的出厂功率测试试验方法

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