WO2011067314A2 - Procédé de production de signaux de commande - Google Patents

Procédé de production de signaux de commande Download PDF

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Publication number
WO2011067314A2
WO2011067314A2 PCT/EP2010/068690 EP2010068690W WO2011067314A2 WO 2011067314 A2 WO2011067314 A2 WO 2011067314A2 EP 2010068690 W EP2010068690 W EP 2010068690W WO 2011067314 A2 WO2011067314 A2 WO 2011067314A2
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
phase
curve
shows
rectifier
Prior art date
Application number
PCT/EP2010/068690
Other languages
German (de)
English (en)
Other versions
WO2011067314A3 (fr
Inventor
Paul Mehringer
Gerhard Walter
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2011067314A2 publication Critical patent/WO2011067314A2/fr
Publication of WO2011067314A3 publication Critical patent/WO2011067314A3/fr

Links

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
    • 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
    • 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
    • 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
    • H02M7/2195—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 the switches being synchronously commutated at the same frequency of the AC input 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
    • H02M1/0048—Circuits or arrangements for reducing losses
    • 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 invention relates to a method for generating control signals for a rectifier with active switching elements and a circuit for carrying out the method.
  • rectifiers For feeding DC systems from Drehstrohmsystemen, such as, for example, in the public three-phase network, rectifiers are generally used. These rectifiers are usually constructed in bridge circuit, being regularly used as rectifier elements diodes. The diodes require no further drive circuit, since they automatically go into the conductive or blocking state at the right time.
  • Bridge rectifiers are also used, for example, as rectifiers in vehicle three-phase generators, which have a pronounced inductive internal resistance. Furthermore, it should be noted that the rectifier has a predetermined by the diodes and the output current power loss. By circuit measures, such as, for example, by connecting diodes in parallel, these losses can be minimized only insignificantly.
  • the diodes are replaced by active switches, for example by field-effect transistors such as MOSFETs, these losses can be substantially reduced.
  • active switches require a controller that turns the switches on and off at the right time.
  • the document EP 1 134 886 A1 relates to a low-loss rectifier for a multi-phase generator, wherein transistors in the rectifier are controlled by a control device.
  • the publication JP 2002/171687 A1 describes a rectifier unit and a method for driving this rectifier unit.
  • the rectifier unit has a number of MOSFETs.
  • a shunt resistor detects the phase current through a phase connection, so that the MOSFETs can be driven based on this current.
  • the document DE 10 2008 023 779 A1 describes a method for rectifying an alternating signal, in which the voltage between each phase of a machine and a predetermined mass is determined, voltages are calculated from phase to phase from the voltages of phase to ground and the Phase to phase voltages are compared to a first predetermined threshold voltage and a second threshold voltage. Depending on the voltages, a switch connected to a particular phase of the machine is turned on and off.
  • control signals can be obtained without position sensors.
  • the method and the circuit are particularly suitable for rectifiers with active switches that already have these diodes in the semiconductor structure, for example.
  • Field-effect transistors such as MOSFET transistors. In these no additional diodes must be introduced.
  • Figure 1 shows an embodiment of the circuit according to the invention with a bridge rectifier with active switches.
  • FIG. 2 shows the basic profile of the phase voltage and the phase current.
  • FIG. 3 shows a detail of the upper half-wave when using a comparator.
  • FIG. 4 shows a detailed view of the switch-on behavior.
  • FIG. 5 shows a detailed view of the switch-off behavior.
  • FIG. 1 shows a generator 10, a rectifier 12, in this case a bridge rectifier, a circuit 14 for generating drive signals and a drive 16 of switches (eg gate drivers).
  • the generator 10 generates three phase signals, namely phase U 20, phase V 22 and phase W 24. These three phases 20, 22 and 24 are fed to the rectifier 12, in which between a positive pole 26 and a negative pole 28 in a first branch 30th , a second branch 32 and a third branch 34 switching elements are arranged.
  • the first branch 30 comprises a first switching element 40 and a second switching element 42, the second branch 32, a third switching element 50 and a fourth switching element 52 and the third branch 34, a fifth switching element 60 and a sixth switching element 62.
  • the switching elements 40, 42, 50, 52, 60, 62 each comprise a switch with parallel-connected diode and can be designed as MOSFET transistors, each with sorce, drain and gate connection.
  • the three phases U 20, V 22 and W 24 are converted by the rectifier 12 into DC sizes.
  • the drive signal generation circuit 14 evaluates the three phases 20, 22 and 24 and generates control signals with which the drive 16 for the switches of the switching elements 40, 42, 50, 52, 60 and 62 takes place.
  • a device 70 for carrying out a current measurement and a device 72 for carrying out a voltage measurement are provided.
  • a comparator 74 may be provided.
  • the switch-on of the active switch via an evaluation of the voltage across the diodes or inverse diodes of the MOSFETs. With a forward voltage of typically 0.7 V, reliable detection of the switch-on condition with a limit value of, for example, 0.35 V is possible. As soon as the activation has taken place, this signal breaks down, since the diode forward voltage is bypassed by the RDS_ON of the MOSFET. Therefore, a voltage measurement to determine the turn-off is problematic.
  • a control based on a voltage measurement is advantageous over a control based on a current measurement, since in this way the efficiency can be optimally utilized.
  • a combination of a voltage measurement for example.
  • a voltage measurement for example.
  • a current measurement is carried out within a phase for tripping the switch.
  • the voltage at each diode is evaluated, for. B. via a comparator with a switching threshold of, for example. 0.3 V, and the respective phase current measured.
  • a first curve 100 shows the curve of the voltage at the positive pole
  • a further curve 102 shows the course of the voltage at the negative pole.
  • a curve 104 shows the sinusoidal theoretical curve at open circuit voltage on a phase Y.
  • a curve 106 shows the voltage at the diode when using a conventional diode rectifier. Another curve 108 shows whether the diode is conducting.
  • a course 1 10 shows the phase current.
  • a curve 1 12 shows the voltage curve at the MOSFET when using an ideal switch. It can be seen that the current waveform 1 10 simulates the voltage curve 104. Therefore, the current signal is cheaper for the turn-off decision, since there is a higher signal quality than the voltage curve.
  • FIG. 2 shows a detail of the upper half-wave when using a comparator between the battery voltage U_BAT and the phase Y with a switching threshold of 300 mV.
  • the voltage at the positive pole or the battery voltage is represented by a curve 200.
  • a curve 202 shows the course of the open circuit voltage.
  • a curve 204 shows the voltage profile when using a conventional rectifier.
  • a curve 206 shows the current profile.
  • a curve 208 shows the control of the diode.
  • a curve 210 shows the course of the voltage at the MOSFET.
  • the comparator threshold is indicated at 212.
  • the comparator signal is represented by a curve 214.
  • FIG. 4 shows a detailed view of the switch-on behavior
  • FIG. 5 a detailed view of the switch-off behavior.
  • a curve 300 shows the curve at the no-load voltage on a phase Y.
  • a curve 302 shows the curve of the voltage at the positive pole.
  • Another curve 304 shows the control of the diode.
  • a trace 306 shows the waveform the voltage across the diode using a conventional diode rectifier.
  • a curve 308 shows the voltage profile at the MOSFET when using an ideal switch, a curve 310 illustrates the comparator threshold.
  • a trace 312 shows the comparator signal.

Landscapes

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

Abstract

L'invention concerne un procédé de production de signaux de commande pour un redresseur (12) et un circuit (14) pour la mise en oeuvre du procédé. Selon le procédé, une commande des éléments de commutation (40, 42, 50, 52, 60, 62) est réalisée sur la base d'une mesure de tension et une fin de commande est réalisée sur la base d'une mesure de courant.
PCT/EP2010/068690 2009-12-03 2010-12-02 Procédé de production de signaux de commande WO2011067314A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009047435.8 2009-12-03
DE102009047435A DE102009047435A1 (de) 2009-12-03 2009-12-03 Verfahren zum Erzeugen von Steuersignalen

Publications (2)

Publication Number Publication Date
WO2011067314A2 true WO2011067314A2 (fr) 2011-06-09
WO2011067314A3 WO2011067314A3 (fr) 2012-04-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/068690 WO2011067314A2 (fr) 2009-12-03 2010-12-02 Procédé de production de signaux de commande

Country Status (2)

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DE (1) DE102009047435A1 (fr)
WO (1) WO2011067314A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020215438A1 (de) 2020-12-07 2022-06-09 Vitesco Technologies Germany Gmbh Elektromotor-Inverter und Elektrischer Fahrzeugantrieb mit einer selbsterregten elektrischen Maschine und einem Elektromotor-Inverter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1134886A1 (fr) 2000-03-17 2001-09-19 Valeo Equipements Electriques Moteur Redresseur pour alternateur polyphasé de véhicules automobiles à pertes énergétiques réduites
JP2002171687A (ja) 2000-11-29 2002-06-14 Hitachi Ltd 車両用充電発電機の整流装置
US20050226298A1 (en) 2004-04-08 2005-10-13 Mitsubishi Denki Kabushiki Kaisha Power conversion device
DE102008023779A1 (de) 2007-05-17 2008-12-24 GM Global Technology Operations, Inc., Detroit Generator mit hohem Wirkungsgrad

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922404A (en) * 1989-03-15 1990-05-01 General Electric Company Method and apparatus for gating of synchronous rectifier
US5949226A (en) * 1995-04-10 1999-09-07 Kabushiki Kaisha Toyoda Jidoshokki Seisakush DC/DC converter with reduced power consumpton and improved efficiency
US6246593B1 (en) * 1999-05-06 2001-06-12 Astec International Limited Topology-independent synchronous rectifier commutation circuit
DE20010283U1 (de) * 2000-06-08 2001-07-19 Siemens Ag Stromversorgung mit verlustarmer Einschaltstrombegrenzung
US7450402B2 (en) * 2002-04-12 2008-11-11 Det International Holding Limited Soft switching high efficiency flyback converter
WO2006005885A2 (fr) * 2004-07-05 2006-01-19 Moteurs Leroy-Somer Redresseur et systeme de controle de la vitesse d'un moteur electrique.
US20080053698A1 (en) * 2006-07-29 2008-03-06 Steve Purves Pre-wired power distribution system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1134886A1 (fr) 2000-03-17 2001-09-19 Valeo Equipements Electriques Moteur Redresseur pour alternateur polyphasé de véhicules automobiles à pertes énergétiques réduites
JP2002171687A (ja) 2000-11-29 2002-06-14 Hitachi Ltd 車両用充電発電機の整流装置
US20050226298A1 (en) 2004-04-08 2005-10-13 Mitsubishi Denki Kabushiki Kaisha Power conversion device
DE102008023779A1 (de) 2007-05-17 2008-12-24 GM Global Technology Operations, Inc., Detroit Generator mit hohem Wirkungsgrad

Also Published As

Publication number Publication date
WO2011067314A3 (fr) 2012-04-26
DE102009047435A1 (de) 2011-06-09

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