WO2022122924A1 - Dispositif, système et procédé de commande pour commander un ensemble commutateur électromécanique - Google Patents

Dispositif, système et procédé de commande pour commander un ensemble commutateur électromécanique Download PDF

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Publication number
WO2022122924A1
WO2022122924A1 PCT/EP2021/085005 EP2021085005W WO2022122924A1 WO 2022122924 A1 WO2022122924 A1 WO 2022122924A1 EP 2021085005 W EP2021085005 W EP 2021085005W WO 2022122924 A1 WO2022122924 A1 WO 2022122924A1
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WO
WIPO (PCT)
Prior art keywords
switch
contact
control unit
energy
signal
Prior art date
Application number
PCT/EP2021/085005
Other languages
German (de)
English (en)
Inventor
Bernhard Altmeier
Original Assignee
Rolls-Royce Solutions 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 Rolls-Royce Solutions GmbH filed Critical Rolls-Royce Solutions GmbH
Publication of WO2022122924A1 publication Critical patent/WO2022122924A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/541—Contacts shunted by semiconductor devices
    • H01H9/542—Contacts shunted by static switch means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/018—Application transfer; between utility and emergency power supply

Definitions

  • the invention relates to a control device according to the preamble of claim 1 for controlling an electromechanical switch arrangement, in particular a hybrid contactor, the electromechanical switch arrangement having an electrical switch arrangement with at least one electrical control switch and a power supply and for connection to a load has, in particular for connection to an electric motor.
  • the invention also relates to a corresponding system for controlling an electromechanical switch arrangement with a power supply and the control device, and a method for controlling an electromechanical switch arrangement.
  • the invention provides for a control device for an electromechanical switching arrangement, in particular a hybrid contactor, having an electrical switching arrangement with at least one electrical control switch and a power supply and a mechanical switch for connection to a load, in particular to an electric motor, of the type mentioned at the outset Kind of a control unit that can be connected to the mechanical switch and to the electrical control switch and the power supply.
  • the load can be a compressor or an electric machine on a utility grid.
  • the mechanical switch here has a base contact and two changeover contacts, with one of the changeover contacts serving as a start switch contact and another of the changeover contacts serving as a destination switch contact, depending on the switching state.
  • the start switch contact is to be understood as the changeover contact that is contacted by the mechanical switch
  • the target switch contact is to be understood as that changeover contact that is not contacted by the mechanical switch.
  • the electrical control switch in particular a semiconductor switch, and the energy supply of the electrical switch arrangement are designed to provide bridging energy when switching over the mechanical switch.
  • the semiconductor switch is a MOSFET.
  • the semiconductor switch can also be a bipolar transistor.
  • the load is contacted via the base contact of the mechanical switch.
  • the changeover contacts make contact with different energy supply systems, so that the load can be supplied with energy via different systems.
  • control device is provided to receive a signal level of the target switching contact and to control generation of the bridging energy depending on the signal level at the target switching contact.
  • an energy supply in particular with an inverter and/or an energy store and/or a DC voltage supply, for generating bridging energy
  • the electrical control switch by receiving the electrical signal from the control unit. It is provided according to the invention that the generation of the bridging energy is controlled by the control unit depending on the signal level at the target switch contact, in particular the signal level at the start switch contact and the signal level at the target switch contact.
  • the generation of the bridging energy can be carried out more flexibly and more precisely in the event of changing requirements and thus also changing signal situations Target -switch contact- to be adjusted; In particular, as a result of changing signal positions at the target switching contact, arcing can be avoided when switching. In particular, based on knowledge of the signal position of the target switching contact, suitable bridging energy can be provided and introduced.
  • the control unit is preferably designed to also receive a signal position of the start switch contact and to control the generation of the bridging energy--advantageously in addition to depending on the signal position at the target switch contact— depending on the signal position at the start switch contact.
  • signal position is to be understood primarily as the level and phase of the signal.
  • the signal position of the base contact, the signal position of the start switch contact and/or the signal position of the target switch contact is therefore a phase profile for an alternating voltage or a voltage level.
  • control unit is designed to control the generation of the bridging energy by means of pulse width modulation; in particular, the control unit is designed to output a pulse width modulated control signal to an inverter.
  • pulse width modulation results in efficient operation as no more power is drawn from the power supply than necessary.
  • a high level of responsiveness and control accuracy can be achieved with pulse width modulation.
  • control device is designed to generate the control signal, with the control signal being present at the electrical control switch and/or at the power supply at the point in time at which the mechanical switch releases from the start switch contact.
  • the bridging energy can be provided at the respective point in time at which the mechanical switch releases from the start switch contact. This means that the connected load is not disconnected from the power supply.
  • the bridging energy for reaching the signal position at the target switching contact is advantageously provided within a switching time of the mechanical switch. The result of this is that the signal position, which was previously present at the base contact via the start switching contact, is adjusted to the signal position of the target switching contact by the bridging energy.
  • the electrical control switch is designed as a semiconductor switch, in particular as a transistor, to provide bridging energy when switching over the mechanical switch.
  • a transistor has the advantage that it can be operated as an on-off switch. When a zero signal is applied to the base of the transistor, it turns “OFF” and thus acts like an open switch. When a positive signal is applied to the base, it turns “ON” and acts like a closed switch.
  • transistors have a short switching time of up to less than a nanosecond. Such a short switching time allows the bridging energy to be provided quickly and flexibly.
  • the generation of the bridging energy is also dependent on the technical characteristics of the inverter.
  • the method provides for additional technical characteristics of a load connected to the switch arrangement to be taken into account when generating the bridging energy. The method preferably has the additional step:
  • FIG. IB functional units, shown schematically, of the control device of FIG. 1A;
  • FIG. 2 shows a basic functional diagram of a mechanical switch according to the prior art;
  • the electrical control switch 14.3 is also connected to an inverter 22.
  • the inverter 22 receives the control signal from the FPGA. With the help of the control signal, the inverter forms the bridging energy ÜE, which is made available to it by an energy store 24, possibly in the form of a battery.
  • FIG. 4 shows a flowchart of a preferred embodiment of a method 200 for controlling an electromechanical switch arrangement, here in the form of a hybrid contactor 10, with a control unit 50, which was explained above here in a preferred embodiment according to the concept of the invention.
  • the method 200 includes the steps:
  • the mechanical switch 12, the semiconductor switch 14.3, the inverter 22, the energy store 24 and the control unit 50 are already shown in FIG. 1A and have been made in connection with FIG. 1A described.
  • the rectifier bridge 26 with the diodes D1, D2, D3 and D4 supplies the energy store 24 with energy from an energy supply network.
  • the diodes D1, D2, D3 and D4 convert AC voltage into DC voltage.
  • the hybrid contactor 10 includes a mechanical switch 12 and two semiconductor switches 14.1, 14.2.
  • the mechanical switch 12 has a base contact 16 and two changeover contacts, a start switch contact 18 and a target switch contact 20 on.
  • the electric motor M is connected both to the base contact 16 and to a ground N via connections 34 .
  • the electric motor M is connected via the mechanical switch 12 and with one of the changeover contacts 18, 20 via mains connections 42 either to the power supply network PI or to the power supply network P2.
  • the base contact 16 and the changeover contacts 18, 20 each have a detection device DET1, DET2 and DET3.
  • the detection devices DET1, DET2 and DET3 each measure the signal position k0, kl or k3 which is present at the corresponding contact.
  • a control unit 50 here an FPGA, controls the generation and provision of bridging energy.
  • the control unit 50 is designed to calculate the necessary bridging energy and to generate a corresponding control signal when the mechanical switch 12 switches over.
  • the control unit 50 is further designed to output the present pulse width modulated control signal to the inverter 22 .
  • the inverter 22 forms the bridging energy, which is pre-stored by the energy store 24, in accordance with the control signal.
  • the bridging energy is transferred to the electric motor M during the switching of the mechanical switch 12 via a ferrite coil 30 with an overvoltage protection device 40 and the electrical control switch 14.3
  • DET1, DET2, DET3 detection device kO signal level at the base contact kl signal level at the start switch contact k2 signal level at the target switch contact

Landscapes

  • Inverter Devices (AREA)
  • Relay Circuits (AREA)

Abstract

L'invention concerne un dispositif de commande (50) permettant de commander un ensemble commutateur électromécanique (10), en particulier d'un contacteur hybride, l'ensemble commutateur électromécanique (10) comprenant un ensemble commutateur électrique (11) comprenant au moins un commutateur de commande électrique (14.3) et une alimentation en énergie, et comprenant un commutateur mécanique (12) destiné à être connecté à une charge, en particulier destiné à être connecté à un moteur électrique (M), dans lequel - le commutateur mécanique (12) comprend un contact de base (16) et des contacts à permutation, l'un des contacts à permutation étant utilisé comme contact de commutation de démarrage (18) et un autre des contacts à permutation étant utilisé comme contact de commutation cible (20), en fonction de l'état de permutation, et - le commutateur de commande électrique (14.3) et l'alimentation en énergie de l'ensemble commutateur électrique sont conçus pour fournir une puissance de pontage (ÜE) lors de la commutation du commutateur mécanique (12),dans lequel - le dispositif de commande (50) peut être connecté au commutateur mécanique (12) et au commutateur de commande électrique (14.3) et à l'alimentation en énergie de l'ensemble commutateur électromécanique (10). Selon l'invention, le dispositif de commande (50) est conçu pour recevoir une couche de signal (k2) du contact cible (20) et pour commander la production de la puissance de pontage (ÜE) en fonction de la couche de signal (k2) au niveau du contact de commutation cible (20).
PCT/EP2021/085005 2020-12-10 2021-12-09 Dispositif, système et procédé de commande pour commander un ensemble commutateur électromécanique WO2022122924A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020132934.2 2020-12-10
DE102020132934.2A DE102020132934B3 (de) 2020-12-10 2020-12-10 Steuergerät, System und Verfahren zur Steuerung einer elektro-mechanischen Schalteranordnung

Publications (1)

Publication Number Publication Date
WO2022122924A1 true WO2022122924A1 (fr) 2022-06-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/085005 WO2022122924A1 (fr) 2020-12-10 2021-12-09 Dispositif, système et procédé de commande pour commander un ensemble commutateur électromécanique

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Country Link
DE (1) DE102020132934B3 (fr)
WO (1) WO2022122924A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201467A1 (de) 2001-01-16 2002-08-29 Lg Ind Systems Co Ltd Multifunktionales Hybrid Schütz
US20050057878A1 (en) * 2003-09-12 2005-03-17 General Electric Company Automatic transfer switch and protection device
US10110057B2 (en) * 2016-06-16 2018-10-23 Eaton Intelligent Power Limited Transfer switch apparatus and methods using transition time monitoring and adaptation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104407531A (zh) 2014-12-10 2015-03-11 中国建材国际工程集团有限公司 用于玻璃厂的主传动控制方法
DE102018100974B4 (de) 2018-01-17 2019-09-26 Phoenix Contact Gmbh & Co. Kg Schaltungsanordnung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201467A1 (de) 2001-01-16 2002-08-29 Lg Ind Systems Co Ltd Multifunktionales Hybrid Schütz
US20050057878A1 (en) * 2003-09-12 2005-03-17 General Electric Company Automatic transfer switch and protection device
US10110057B2 (en) * 2016-06-16 2018-10-23 Eaton Intelligent Power Limited Transfer switch apparatus and methods using transition time monitoring and adaptation

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