EP3915190A1 - Système d'entraînement comprenant un premier convertisseur, une commande et un convertisseur dédié à l'alimentation d'un moteur électrique - Google Patents

Système d'entraînement comprenant un premier convertisseur, une commande et un convertisseur dédié à l'alimentation d'un moteur électrique

Info

Publication number
EP3915190A1
EP3915190A1 EP20700962.2A EP20700962A EP3915190A1 EP 3915190 A1 EP3915190 A1 EP 3915190A1 EP 20700962 A EP20700962 A EP 20700962A EP 3915190 A1 EP3915190 A1 EP 3915190A1
Authority
EP
European Patent Office
Prior art keywords
converter
drive system
voltage
signal electronics
voltage provided
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.)
Pending
Application number
EP20700962.2A
Other languages
German (de)
English (en)
Inventor
Hans Jürgen KOLLAR
Florian Link
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.)
SEW Eurodrive GmbH and Co KG
Original Assignee
SEW Eurodrive GmbH and Co KG
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 SEW Eurodrive GmbH and Co KG filed Critical SEW Eurodrive GmbH and Co KG
Publication of EP3915190A1 publication Critical patent/EP3915190A1/fr
Pending legal-status Critical Current

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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • 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
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
    • 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
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • 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
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade
    • 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
    • H02M1/123—Suppression of common mode voltage or current
    • 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 drive system, comprising a first converter, a controller and a converter for supplying an electric motor.
  • a drive system has a controller that controls a converter that feeds an electric motor.
  • An automation cable system is known from DE 10 2004 043 186 A1.
  • a cable system is known from DE 199 21 654 C1.
  • the invention is therefore based on the object of developing a drive system, in which case increased safety should be achievable.
  • the drive system has a first converter, a controller and a converter for feeding an electric motor, the first converter providing the controller with a DC voltage, a second converter being fed from the DC voltage and one first
  • Signal electronics of the converter provide a DC voltage, wherein the second converter has a galvanic separation, in particular the DC voltage provided by the first converter, in particular 24 volts, is fed to the input side of the second converter and the DC side, in particular 24 volts, the output side of the second converter of the first signal electronics, which is galvanically isolated from the input side , provides.
  • the second converter supplies the first signal electronics with a DC voltage in an electrically isolated manner.
  • the first converter can thus be connected to PE and connected to the converter via a long cable.
  • the converter can be connected separately to PE without compensation currents having to flow via PE. This increases safety because equalizing currents are a source of danger.
  • the first converter is an AC / DC converter and the second converter is a DC / DC converter.
  • the advantage here is that the first converter from
  • Public AC power supply is powered rectifier and is therefore easy to perform.
  • the second converter has a transformer and converts the DC voltage provided on the input side by the first converter into an AC voltage which feeds the primary side of the transformer.
  • the secondary side of the transformer feeds a rectifier, so that a DC voltage can be made available to the first signal electronics, in particular of the same amount as the DC voltage provided by the first converter.
  • the DC voltage is preferably 24 volts.
  • the DC voltage provided by the first converter to the second converter has the same value as the DC voltage provided by the second converter to the first signal electronics.
  • the advantage here is that the first signal electronics can be supplied in an electrically isolated manner. Compensating currents via PE are thus avoided.
  • the second converter is arranged within the housing of the converter.
  • the advantage here is that the connection of the lower potential of the voltage made available by the second converter to PE is made possible in a simple manner and the housing of the converter can also be connected to PE.
  • the second converter is arranged outside the housing of the converter, the second converter being closer to the converter than to the first converter or to
  • Control is arranged, in particular wherein the lower potential of the DC voltage provided by the second converter of the first signal electronics is connected to PE and / or is connected to electrical earth.
  • the advantage here is that the connection of the converter with PE is also effective up to the second converter. This is because the lower potential of the DC voltage provided by the second converter can be connected to PE in the converter. Since the second converter is arranged close to the converter, this connection with the zero potential, in particular earth connection, is also effective for the second converter.
  • the lower potential of the DC voltage provided by the first converter is connected to PE and / or is connected to electrical earth.
  • the advantage here is that both the voltage provided by the first converter and the voltage provided by the second converter are connected to PE, in particular are therefore connected to the zero potential.
  • the lower potential of the direct voltage provided by the second converter is connected to PE and / or is electrically grounded.
  • the converter housing is also connected to PE and / or electrically grounded.
  • control with the converter is
  • the advantage here is that the controller can be supplied with a voltage by the first converter, the lower potential of which is grounded. However, since the control system transmits data and signals to the converter in a floating manner, it can be connected independently to PE. Compensating currents via PE are avoided. In an advantageous embodiment, floating inputs and outputs of the control are connected to the converter for signal transmission. The advantage here is that the converter can be connected to PE separately from the controller with the first converter.
  • the converter has a further switched-mode power supply, which supplies a second signal electronics of the converter, which executes the motor control, the further switched-mode power supply supplying the drivers of the semiconductor switches of the converter of the converter, an angle sensor for detecting the angular position of the rotor of the electric motor and / or a fan for conveying a cooling air flow flowing along the cooling fins of a heat sink for cooling the semiconductor switches.
  • the lower potential of the direct voltage made available by the first converter to the converter or to the first converter is connected to PE and / or is connected to electrical earth.
  • the advantage here is that the first converter can be connected to PE independently of the converter.
  • the housing of the converter is connected to PE and / or is connected to electrical earth.
  • the advantage here is that the converter is connected to PE separately from the first converter. Compensating currents via PE can thus be avoided.
  • FIG. 1 A first drive system according to the invention is shown in FIG. 1
  • Converter 6 comprises a second converter 7 for supplying a first signal electronics.
  • FIG. 2 shows an alternative drive system according to the invention, the converter 6 having a separate second converter 7 for supplying the first one
  • the drive system has a first converter 1, which is preferably designed as an AC / DC converter.
  • the first converter 1 provides a 24 volt DC voltage to a controller 2.
  • the first converter 1 is also grounded, in particular the lower potential of the DC voltage provided on the output side is connected to PE and / or electrical ground. This grounding is carried out directly on the first converter 1. In particular, the earthing is arranged closer to the first converter 1 than to that of the first converter 1
  • the controller 2 has inputs and outputs 5 to which the converter 6 is connected. In addition, the controller 2 and the converter 6 by means of a
  • Data exchange connection in particular connected by means of a field bus, so that data can be transmitted between the controller and converter 6.
  • the converter 6 has first signal electronics, which is provided at least for communication.
  • the data transmitted via the fieldbus 4 are supplied to this first signal electronics in an electrically isolated manner, in particular via optocouplers.
  • the signals coming from the outputs of the controller 2 or sent from the converter 6 to the inputs of the controller 2 are also galvanically decoupled,
  • This first signal electronics has a microcontroller 8.
  • the first signal electronics, comprising microcontrollers 8, are supplied with direct voltage, in particular with 24 volt direct voltage, by a second converter 7, the first
  • Signal electronics can also have a switching power supply, which is supplied by the second converter 7 and provides various DC voltages of the remaining first signal electronics.
  • the lower potential of the DC voltage provided by the second converter 7 is connected to PE, that is to say electrically grounded.
  • the second converter 7 is arranged in the converter 6, that is to say inside the housing of the converter 6.
  • the housing of the converter 6 is also grounded.
  • the second converter 7 is supplied from the first converter 1 in that the direct voltage made available by the first converter 1 to the controller 2 is also fed to the second converter 7.
  • the second converter 7 has a galvanic separation between the DC voltage supplied by the first converter 1 and the DC voltage provided by the second converter 7 on the output side.
  • the second converter 7 is thus designed as a DC / DC converter.
  • the converter 6 has a second signal electronics, which carries out the motor control.
  • the second signal electronics generate pulse-width-modulated control signals for in
  • the second signal electronics also has a microcontroller and is supplied separately or additionally via a further switched-mode power supply, in particular not from the second converter 7.
  • the further switched-mode power supply also supplies the drivers for controlling the semiconductor switches of the power stage of the converter 6 and the angle sensor for detecting the angular position of the rotor of the electric motor, as well as a fan of the converter.
  • An additional PE connection 3 grounding 3 of the line which has the lower potential of that made available by the first converter 1 is optionally also possible
  • the inputs and outputs 5 of the controller 2 are potential-free.
  • the fieldbus 4 is also led to the converter 6 in a potential-free manner, that is to say galvanic isolation is achieved by means of optocouplers of the first signal electronics.
  • the second signal electronics and the first signal electronics are designed together as the only signal electronics, the first and the second microcontroller also being implemented as a single microcontroller.
  • the second converter 21 cannot be arranged inside the housing of the converter 6, but outside.
  • An additional PE connection 3 of the line which carries the lower potential of the direct voltage made available by the second converter 7 of the first signal electronics is also optionally available.
  • the second converter 21 is preferably closer to the converter 6 than the first converter 1 and / or the controller 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Inverter Devices (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

Système d'entraînement comprenant un premier convertisseur (1), une commande (2) et un convertisseur (6) dédié à l'alimentation d'un moteur électrique, ledit premier convertisseur (1) fournissant une tension continue à la commande (2), un deuxième convertisseur (7) étant alimenté à partir de la tension continue et fournissant une tension continue à une première électronique de signalisation du convertisseur (6), le deuxième convertisseur (7) comprenant un isolement galvanique.
EP20700962.2A 2019-01-21 2020-01-13 Système d'entraînement comprenant un premier convertisseur, une commande et un convertisseur dédié à l'alimentation d'un moteur électrique Pending EP3915190A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019000331 2019-01-21
PCT/EP2020/025008 WO2020151912A1 (fr) 2019-01-21 2020-01-13 Système d'entraînement comprenant un premier convertisseur, une commande et un convertisseur dédié à l'alimentation d'un moteur électrique

Publications (1)

Publication Number Publication Date
EP3915190A1 true EP3915190A1 (fr) 2021-12-01

Family

ID=69174444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20700962.2A Pending EP3915190A1 (fr) 2019-01-21 2020-01-13 Système d'entraînement comprenant un premier convertisseur, une commande et un convertisseur dédié à l'alimentation d'un moteur électrique

Country Status (3)

Country Link
EP (1) EP3915190A1 (fr)
DE (1) DE102020000125A1 (fr)
WO (1) WO2020151912A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023107213B3 (de) 2023-03-22 2024-05-08 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Pulswechselrichter und dessen Verwendung sowie Antrieb und Kraftfahrzeug mit einem solchen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1460155B1 (fr) 1998-03-13 2006-08-23 Murata Kikai Kabushiki Kaisha Machine textile avec broche à entraînement individuel où les entraînement individuels sont divisés en unités
DE19921654C1 (de) 1999-04-03 2000-12-21 Sew Eurodrive Gmbh & Co Kabelsystem zur Verkabelung einer Zelle
US7173345B2 (en) 2003-09-15 2007-02-06 Rockwell Automation Technologies, Inc. Multi-function integrated automation cable connector system and method
WO2007041893A1 (fr) * 2005-10-09 2007-04-19 System General Corp. Controleur pwm en circuit ferme de convertisseurs de puissance cote primaire
DE102014209112A1 (de) * 2014-05-14 2015-11-19 BSH Hausgeräte GmbH Ventileinrichtung für ein Haushaltsgerät, Haushaltsgerät und entsprechendes Verfahren

Also Published As

Publication number Publication date
WO2020151912A1 (fr) 2020-07-30
DE102020000125A1 (de) 2020-07-23

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