Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
  • H02K11/30—Structural association with control circuits or drive circuits
  • H02K11/35—Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
  • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
  • H02K7/1807—Rotary generators
  • H02K7/1815—Rotary generators structurally associated with reciprocating piston engines
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
  • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
  • H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
  • H02K2211/03—Machines characterised by circuit boards, e.g. pcb
• • 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
  • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
  • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
  • H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
  • H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
  • H02P9/302—Brushless excitation
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2209/00—Arrangements in telecontrol or telemetry systems
  • H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2209/00—Arrangements in telecontrol or telemetry systems
  • H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2209/00—Arrangements in telecontrol or telemetry systems
  • H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
  • H04Q2209/88—Providing power supply at the sub-station
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q2209/00—Arrangements in telecontrol or telemetry systems
  • H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
  • H04Q2209/88—Providing power supply at the sub-station
  • H04Q2209/886—Providing power supply at the sub-station using energy harvesting, e.g. solar, wind or mechanical

Definitions

• the present invention relates to electronic devices used for the control and / or regulation of electrical rotating machines, and in particular but not exclusively a generator voltage digital regulator.
• NFC technology is a radiofrequency contactless communication technology that meets various standards such as IEC-18000-3, ISO / IEC 14443 and IEC 18092, which is widely used in the field of telephony, in particular mobile telephony as well as that of cards. payment and transport.
• An alternator is a rotating machine dedicated to be connected to a load or the electrical network.
• its output parameters such as current or voltage are controlled by a voltage regulator through adjustment of excitation current of the exciter inductor.
• the excitation current makes it possible to create a voltage in the exciter armature which is rectified via a rotating diode bridge in order to supply the pole wheel of the main machine.
• the pole wheel becomes the seat of a magnetic flux captured by the main winding of the stator to generate the desired output signal by the load or the network.
• the known generator digital voltage regulators are communicating modules using, for example, a USB, CANBUS, Ethernet type port for exchanging data with the outside ...
• the safety rules in this domain impose a sufficient level of isolation to protect the user connecting to the digital controller, with the alternator running. This complicates the realization of the regulator and increases its cost.
• the invention responds to this need by means of an electronic device communicating for a rotating electrical machine, in particular an alternator voltage regulator or a speed controller, comprising an electronic circuit and a wired port allowing the exchange of information with the outside, characterized in that the wired port is defined by an interface module integral with a circuit board of the electronic circuit and communicating by a wireless link therewith.
• the invention makes it possible, thanks to the wireless communication within the apparatus itself, to overcome the aforementioned physical isolation constraints while guaranteeing the required security level.
• the electric machine can be an alternator.
• the regulator can in particular ensure the protection of the alternator vis-à-vis possible malfunctions such as overloading and over-excitation, which can lead to the destruction of the alternator.
• the device can be arranged to allow the locking of data by password, in order to secure the accessible data and to ensure a protection of the regulator through access by security code specific to the device.
• the card can be received in a shell, in particular made of thermoplastic material, possibly reinforced, and the interface module then preferably comprises a housing fixed on this shell.
• the card can be embedded in a resin cast in the shell.
• the housing of the interface module can be fixed by any means on the card or the aforementioned hull.
• the housing of the interface module comprises pins engaged in corresponding holes of the shell, in particular riveted in these holes. These can be made on a rim of the hull.
• the interface module communicates with a communication module of the apparatus.
• the card comprises an antenna connected to this communication module and the interface module comprises an antenna disposed opposite the antenna of the card.
• the interface module and the communication module are of the NFC type. This makes it possible to use components dedicated to this type of technology and to benefit from a high reliability of communication between the interface module and the communication module, despite the surrounding electromagnetic fields.
• the interface module comprises at least one connector for connecting a cable, for example connected to a computer, in particular of the USB type.
• the apparatus in particular the alternator digital voltage regulator, may comprise a main microcontroller whose DC power supply may be provided by a cable connected to the interface module, in particular a cable connected to a computer, or by the voltage produced by the machine equipped with the device, especially when this machine is an alternator.
• the electrical machine is an alternator
• the apparatus a regulator the latter can be arranged to transmit to an external equipment, in particular a computer, via the interface module, information from sensors connected to the alternator, in particular data relating to the temperature, the vibration, the current and the excitation voltage, and in particular all the electrical quantities of the alternator.
• the aforementioned device card may include an additional antenna allowing, when short-circuited, to cancel the electromagnetic field captured by the antenna used for data exchange with the interface module. This can prevent the receipt of data and the power supply of the device by the communication module during transition phases where we go from a power supply by the communication module to a power supply by the electric machine.
• the invention also relates to a method for exchanging data with an electronic device according to the invention, equipping a rotating electrical machine, in particular for configuring, checking and recording information contained in the device or updating the firmware of the device.
• the apparatus in which a computer is connected to the interface module by means of a cable and data is exchanged with the apparatus via the interface module.
• the electrical machine may be off or not. If it is stopped, the interface module can send power via the antenna coupling to the device, and thus allow a main microcontroller of the device to operate despite the machine shutdown.
• the additional antenna is short-circuited during a transient phase, during which the apparatus receives the energy transmitted by the interface module connected to the computer and during which the voltage is applied. of the alternator increases but remains insufficient to take over the power supply by the interface module. This allows a smooth transition between the two power sources of the device.
• FIG. 1 is a schematic perspective view of the electronic circuit of an exemplary apparatus made in accordance with the invention
• FIG. 2 is an exploded view of the circuit of FIG. 1,
• FIG. 3 represents a detail of the mechanical cooperation between the interface module and a receiving shell of the printed circuit board
• FIG. 4 represents, in isolation, the shell of FIG. 3,
• FIGS. 5 to 7 represent constituent elements of the interface module
• FIG. 8 is an electrical diagram of a rotating machine equipped with an apparatus according to the invention
• FIG. 9 represents a detail of the diagram of FIG.
• Figure 10 is an electrical diagram of the interface module
• Figure 11 is a view similar to Figure 10, an alternative embodiment of the interface module.
• FIG. 8 shows the diagram of a rotating electrical machine equipped with a communicating apparatus 17, in this case a digital voltage regulator, produced in accordance with the invention.
• the rotating machine is a dedicated alternator to be connected to a load or the electrical network 18. Its output parameters such as the current or the voltage are controlled by the voltage regulator 17 through the adjustment of the excitation current of the exciter inductor 11.
• the excitation current makes it possible to create in the armature of exciter 12 a voltage which is rectified via a rotating diode bridge 13 to power the pole wheel 14 of the main machine. As a result, this pole wheel becomes the seat of a magnetic flux captured by the main winding of the stator 15 discharging on the load or the network 18.
• the regulator 17 is compatible with the different types of excitation commonly encountered in industry.
• Regulator 17 is shown more particularly in FIG. 9.
• the operation of regulator 17, in particular the regulation and protection strategy and related functions, is provided by a main microcontroller 21 which executes a program in memory.
• the power portion 22 of the regulator 17 makes it possible to supply the exciter inductor 11 with the current necessary to ensure good regulation.
• the microcontroller 21 receives measurements and information from inputs and outputs 26 of the regulator 17.
• the inputs and outputs 26 are dedicated to receive and send analog or digital signals, without limitation of number or function.
• the measurements concern mainly voltages and currents, and possibly one or more additional sensors 19 such as a temperature or rotation speed sensor.
• the microcontroller may receive, if necessary, information from equipment driving the alternator shaft, such as a heat engine. This information enables the main microcontroller 21 to ensure not only good regulation of the voltage but also adequate protection of the alternator. A recording of the data and the event log can also be performed in the regulator 17.
• the electronic circuit of the regulator 17 comprises a communication module 23 connected to an antenna 24 through an adaptation circuit 27.
• This communication module 23 is equipped with a microcontroller enabling it to perform data exchange with the main microcontroller 21.
• the regulator 17 comprises a printed circuit board 50, visible in FIGS. 2 and 3, which carries most of the electronic components of the regulator 17 and in particular the communication module 23 and the antenna 24.
• the communication module 23 communicates, via the antenna 24, with an interface module 4 having its own antenna 45 and whose electrical diagram is given in FIG.
• the communication modules 23 and interface 4 are preferably communication modules using NFC technology.
• the interface module 4 comprises, as illustrated in FIGS. 5 to 7, a printed circuit board 200 carrying a connector 201 defining a wired port, for example of the USB port type.
• the card 200 is housed in a casing 202 comprising a lower shell 203 and an upper shell 204 that can be fixed to the lower shell by snap-fastening, for example, thanks to fastening tabs 205 which are elastically deformable.
• the upper shell 204 is provided with an opening 206 for the passage of the connector 201.
• the card 200 carries the antenna 45, and the housing 202 is positioned above the card 50 so that the antennas 24 and 45 are substantially superimposed.
• the card 50 is received in a shell 210, which constitutes for example the cradle of the regulator 17, and which has been shown in isolation in FIG. 4.
• This shell 210 has on its bottom wall 211 positioning stops.
• the peripheral amount 217 of the shell, which is also connected to the stops 212, is extended superiorly by a flange 218 directed outwards.
• the housing 202 is arranged to attach to the shell 210, and more particularly to the flange 218.
• This attachment is provided by two pins 220 molded with the lower shell 203 and inserted into corresponding holes 223 made on the edge 218.
• the end of the pins 220 protruding under the flange 218 may be deformed cold or hot, depending on the materials used, to ensure their retention on the shell 210.
• Other techniques for fixing the module housing 4 on the shell 210 and / or the card 50 may be used, such as for example latching, riveting, crimping, force fitting, welding, gluing, screwing, slide.
• the module 4 is a simplified version allowing for example only the configuration of the regulator 17 by a computer for example, as well as the real-time observation of parameters.
• the unit 44 of the module 4 which provides the NFC function can receive energy and data through the antenna 45 through a matching circuit 40 responsible for conditioning the electrical signals.
• the data and the energy can also come from a computer through an interface 41; in this case the adaptation circuit may have the role of transforming these data into electrical signals that can be interpreted by the antenna 24 of the regulator 17.
• the interface 41 is preferably of the USB or RS232 type, but the use of another type of communication port remains within the scope of the present invention.
• the module 4 incorporates an additional microcontroller 42 making it possible to extend the functions of the module 4.
• communication protocols of the CAN Bus J1939 or CANOpen type are implemented thanks to this microcontroller, as well as any other type of fieldbus.
• the interface 41 of this module 4 may consist of one or more wired communication ports.
• the invention offers the possibility of updating the firmware of the voltage regulator from module 4.
• Another feature offered by the invention is the reading of the parameters of the digital voltage regulator via a telephone equipped with NFC technology with a dedicated application.
• the regulator 17 is powered by a power supply that delivers the required voltage only when the alternator provides enough voltage.
• the card 50 may comprise an additional antenna 300, which is superimposed on the antenna 24, and that the regulator 17 can selectively short-circuit to cancel the field of the module 4.
• the antenna 300 is short-circuited temporarily, for a few ms, to make a clean transition between the state where the alternator does not deliver the voltage necessary to properly power the module 23, and in which it receives its energy from the module 4, and the state where the voltage supplied by the alternator is sufficient to ensure the operation of the module 23.
• the invention applies to a rotating electrical machine other than an alternator.

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Power Engineering (AREA)
• Signal Processing (AREA)
• Control Of Eletrric Generators (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=58455192

Family Applications (1)

Country Status (5)

Family Cites Families (2)

• 2016
  • 2016-12-19 FR FR1662744A patent/FR3060826B1/fr active Active
• 2017
  • 2017-12-14 US US16/469,274 patent/US20200106346A1/en not_active Abandoned
  • 2017-12-14 CN CN201780075549.9A patent/CN110050470A/zh active Pending
  • 2017-12-14 EP EP17825451.2A patent/EP3556108A1/de not_active Withdrawn
  • 2017-12-14 WO PCT/EP2017/082847 patent/WO2018114602A1/fr active Application Filing

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