EP2297845A2 - Procédé et dispositif pour l'optimisation d'une modulation de largeur d'impulsion à vecteur spatial - Google Patents

Procédé et dispositif pour l'optimisation d'une modulation de largeur d'impulsion à vecteur spatial

Info

Publication number
EP2297845A2
EP2297845A2 EP09772248A EP09772248A EP2297845A2 EP 2297845 A2 EP2297845 A2 EP 2297845A2 EP 09772248 A EP09772248 A EP 09772248A EP 09772248 A EP09772248 A EP 09772248A EP 2297845 A2 EP2297845 A2 EP 2297845A2
Authority
EP
European Patent Office
Prior art keywords
pulse width
width modulation
switching
voltage
load
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.)
Withdrawn
Application number
EP09772248A
Other languages
German (de)
English (en)
Inventor
Mark Damson
Gunther Goetting
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.)
Robert Bosch GmbH
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 EP2297845A2 publication Critical patent/EP2297845A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H02P27/06—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 using dc to ac converters or inverters
    • 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
    • H02P27/06—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 using dc to ac converters or inverters
    • H02P27/08—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 using dc to ac converters or inverters with pulse width modulation

Definitions

  • the invention relates to a method for optimizing a space vector pulse width modulation in which a voltage is switched to a load by combining discrete switching states of a plurality of switches for driving the load, wherein the load is de-energized by two of the switching states and an apparatus for performing the method ,
  • the "Space Vector Pulse Width Modulation" (SVPWM) is often used, which on the one hand enables a relatively good drive rate and on the other hand is relatively easy to implement
  • the signals between the three half bridges are phase shifted by 120 °
  • the three half bridges contain six switches with 8 permissible discrete switching states which output periodic signals Six of the switching states are active, ie they carry a voltage Zero vectors denote and do not conduct voltage to the load.
  • the maximum drive level of the inverter which is controlled by the SVPMW method, is limited by a non-ideal hardware. So that the course of the switched voltage can follow the drive signal, is in real circuit breakers a minimum time interval t M ⁇ n between two switching operations of the same switch required, causing the maximum Aus confuseungsgrad A Max
  • the invention has for its object to provide a method for optimizing the space vector pulse width modulation, in which the maximum Aus confusegrad is increased.
  • An essential aspect of the invention is that one of the two voltage-free switching switching states in the form of the zero pointer is eliminated. This has the advantage that a switch is not switched, which eliminates a switch-on and a switch-off. This increases the maximum modulation rate A Ma ⁇ Neu
  • the de-energized switching state is extended at the beginning and at the end of each PWM period by the time that the de-energized switching state (zero-phasor) would have needed in the middle of the PWM period.
  • the minimum distance between two switching operations of the same switch is determined by the switch-on and the subsequent switch-off or vice versa, which in turn is given by the real hardware used and their switching speeds, since the switching speed can not be set infinitesimally short.
  • a device for optimizing a space vector pulse width modulation in which a voltage is switched to a load by discrete switching states of multiple switches are combined to drive the load, the load is de-energized by two of the switching states, with the help of the maximum Aus Kunststoffgrad be increased should, means are present which suppress at least one of the voltage-free switching switching states during a pulse width modulation period.
  • the times are calculated in accordance with the space vector pulse width modulation SVPMW and then either always or only when the previously achievable maximum modulation level of the zero pointers in the middle of a PWM period is omitted and its duration is added to the zero pointer at the beginning and at the end of the PWM period.
  • the maximum attainable Aus Kunststoffgrad increases.
  • the switching losses are reduced by one third.
  • the second case it is ensured that this behavior remains unchanged in the previously achievable taxation area.
  • Figure 1 3-phase inverter for controlling a
  • FIG. 2 Table with switching states of the switches used in the inverter according to FIG. 1
  • FIG. 1 shows an induction machine 1, which is connected to a control unit 2, which regulates the torque m or the speed n of the induction machine 1.
  • the induction machine 1 is connected to a 3-phase inverter 3 as a power part, which three half-bridges T1, T4; T2, T5 and T3, T6. Each half bridge is with a strand of
  • Induction machine 1 connected.
  • the strand 1 of the induction machine 1 is connected to the half-bridge T1, T4 of the inverter 3.
  • Strand 2 of the induction machine 1 is located on the half-bridge T2, T4, while the strand 3 leads to the half-bridge T3, T6.
  • FIG. 3 shows, by way of example, the drive signals for the three power semiconductors T1, T2 and T3 arranged in the bridge branches at the top.
  • the drive signals for the three lower power semiconductors T4, T5 and T6 result from the inversion of the signals shown.
  • T 0 , T k and T k + i are calculated by the method of the space vector pulse width modulation (SVPWM method) by the control unit 2, wherein T 0 stands for the activation of a zero pointer.
  • the PWM period is shown in Figure 3, is set by the power semiconductor T1, a null pointer for the period of 2 * (T 0/4 ).
  • the power semiconductor T2 is + i 0/2 are activated for a period of Tk + T during which the power semiconductor T3 k for the time period T + T + T + k is actively switched 0/2 i.
  • a zero pointer for the period each of T 0/4 is switched.
  • the zero pointer now disappears in the middle of the PWM period. In one embodiment, this is only done when the desired Ausberichtgrad achievable with the previous method
  • Tax level exceeds.
  • the zero pointer is either either always or only extended if the previous maximum Aus Kunststoffgrades at the beginning and end of each PWM period.
  • a control of the power semiconductor T1 is dispensed with.
  • the time duration for the drive signal for the power semiconductor T2 is now T k + i, while the time duration for the power semiconductor T 3 in this embodiment is T k + i + T k .
  • the control with the null pointer at the beginning and end of the PWM period is respectively T 0/2 and is thus twice as big as in the example of Figure 3.
  • the maximum modulation depth A Ma Xnew increased according to Equation 2, since the power switch T1 was not addressed and eliminates an on and off sequence. The previously non-adjustable operating range is thereby halved.

Landscapes

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

Abstract

L'invention concerne un procédé pour optimiser une modulation de largeur d'impulsion à vecteur spatial, consistant à connecter une tension (Uz) à une charge (1), en combinant les états de commutation discrets d'une pluralité de commutateurs (T1, T2, T3, T4, T5. T6) pour la commande de la charge (1), la charge (1) étant mise hors tension par deux des états de commutation (0, 7). L'invention porte sur un procédé comprenant une élévation du niveau de commande maximal, dans lequel au moins un des états de mise hors tension (0, 7) est supprimé au cours d'un cycle de modulation de largeur d'impulsion.
EP09772248A 2008-07-03 2009-05-29 Procédé et dispositif pour l'optimisation d'une modulation de largeur d'impulsion à vecteur spatial Withdrawn EP2297845A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008040144A DE102008040144A1 (de) 2008-07-03 2008-07-03 Verfahren und Vorrichtung zur Optimierung einer Raumzeigerpulsweitenmodulation
PCT/EP2009/056599 WO2010000548A2 (fr) 2008-07-03 2009-05-29 Procédé et dispositif pour l'optimisation d'une modulation de largeur d'impulsion à vecteur spatial

Publications (1)

Publication Number Publication Date
EP2297845A2 true EP2297845A2 (fr) 2011-03-23

Family

ID=41382189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09772248A Withdrawn EP2297845A2 (fr) 2008-07-03 2009-05-29 Procédé et dispositif pour l'optimisation d'une modulation de largeur d'impulsion à vecteur spatial

Country Status (5)

Country Link
US (1) US8441818B2 (fr)
EP (1) EP2297845A2 (fr)
CN (1) CN102084588B (fr)
DE (1) DE102008040144A1 (fr)
WO (1) WO2010000548A2 (fr)

Cited By (1)

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WO2018184814A1 (fr) 2017-04-07 2018-10-11 Robert Bosch Gmbh Dispositif et procédé servant à commander un onduleur

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DE102007023460B4 (de) * 2007-05-19 2017-06-22 Saurer Germany Gmbh & Co. Kg Streckwerk für eine Spinnmaschine
DE102011086177A1 (de) * 2011-11-11 2013-05-16 Robert Bosch Gmbh Verfahren zum Kalibrieren eines mehrphasigen Wechselrichters, Vorrichtung zum Betreiben, Computerprogramm, Computer-Programmprodukt
DE102012210663A1 (de) * 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210648A1 (de) * 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210652A1 (de) * 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210654A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210644A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters mittels Raumzeigermodulation
DE102012210664A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210641A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210671A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters mittels Raumzeigermodulation
DE102012210658A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210669A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210665A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210662A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210670A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters mittels Raumzeigermodulation
DE102012210656A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters mittels Raumzeigermodulation
DE102012210650A1 (de) * 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechelrichters
DE102012210661A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
DE102012210667A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters
US9774275B2 (en) 2012-08-22 2017-09-26 Carrier Corporation Systems and methods for space vector pulse width modulation switching using boot-strap charging circuits
EP2775605B1 (fr) * 2013-03-05 2018-02-07 Siemens Aktiengesellschaft Procédé destiné au fonctionnement d'un onduleur et onduleur fonctionnant selon ce procédé
DE102013221433A1 (de) * 2013-10-22 2015-04-23 Continental Teves Ag & Co. Ohg Verfahren zur Ansteuerung eines bürstenlosen Motors
CN104868820B (zh) * 2014-08-26 2017-12-01 广东美的环境电器制造有限公司 电容运行式单相感应电机的调速方法和调速装置
CN104506106B (zh) * 2014-12-30 2017-07-28 徐州中矿大传动与自动化有限公司 一种双馈电机励磁控制及零速启动方法
WO2017049250A1 (fr) * 2015-09-18 2017-03-23 Murata Manufacturing Co., Ltd. Schéma de pwm basé sur la modulation de vecteur dans l'espace pour des convertisseurs redresseurs triphasés
CN105939133B (zh) * 2016-06-30 2019-01-04 陕西科技大学 一种连续变频的软起动器及其控制方法
DE102016220892A1 (de) 2016-10-24 2018-04-26 Robert Bosch Gmbh Stromrichter und Verfahren zur Ansteuerung eines Stromrichters
DE102018204221A1 (de) 2018-03-20 2019-09-26 Robert Bosch Gmbh Verfahren zur Ansteuerung eines pulsbreitenmodulierten Stromrichters und pulsbreitenmodulierter Stromrichter
DE102020105163A1 (de) 2020-02-27 2021-09-02 Audi Aktiengesellschaft Verfahren zum Betreiben einer Antriebseinrichtung für ein Kraftfahrzeug sowie entsprechende Antriebseinrichtung

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WO2018184814A1 (fr) 2017-04-07 2018-10-11 Robert Bosch Gmbh Dispositif et procédé servant à commander un onduleur
DE102017206023A1 (de) 2017-04-07 2018-10-11 Robert Bosch Gmbh Vorrichtung und Verfahren zur Ansteuerung eines Wechselrichters

Also Published As

Publication number Publication date
CN102084588A (zh) 2011-06-01
CN102084588B (zh) 2014-07-30
US8441818B2 (en) 2013-05-14
US20110149621A1 (en) 2011-06-23
WO2010000548A3 (fr) 2011-03-10
WO2010000548A2 (fr) 2010-01-07
DE102008040144A1 (de) 2010-01-07

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