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
• • 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
  • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static 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
  • H02M3/00—Conversion of dc power input into dc power output
  • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
  • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
  • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
  • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
  • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
  • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
  • H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
  • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
  • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
  • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
  • H03K17/689—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors with galvanic isolation between the control circuit and the output circuit
  • H03K17/691—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors with galvanic isolation between the control circuit and the output circuit using transformer coupling
• • 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
  • H02M1/0003—Details of control, feedback or regulation circuits
  • H02M1/0009—Devices or circuits for detecting current in a converter
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
  • H03K2217/0081—Power supply means, e.g. to the switch driver

Definitions

• the present invention is in the field of electronic power systems and more particularly energy conversion systems between alternating currents (which can be abbreviated as AC or alternating current AC) and / or currents. continuous (which can be abbreviated by DC or in English by DC for "direct current”).
• alternating currents which can be abbreviated as AC or alternating current AC
• continuous which can be abbreviated by DC or in English by DC for "direct current”
• the present invention relates in particular to the realization of an isolated power supply generated from the energy conversion system.
• Electronic power systems perform several functions according to the applications in which they are used.
• switching systems A large majority of these systems from a few tens of watts to several hundred kilowatts are so-called switching systems by those skilled in the art. In other words, they are composed of semiconductor switches capable of switching large currents and voltages at high frequencies.
• drivers stages of components or electronic control circuits (hereinafter referred to as "drivers") and which make it possible to convert the control signals originating from a digital calculation unit, such as "DSP” type (for Digital Signal Processor in English) or microcontroller by way of example, in low power control signals adapted to the types of switch, as illustrated in Figure 1a which represents a generic diagram of a power system of the state of the art. art including a driver, and which will be detailed in the following description).
• DSP Digital Signal Processor in English
• a driver stage consists of an amplification driver (DD) of uninsulated voltage and current levels with low impedance outputs (push -pull or totem-pole and which have a semiconductor switch to the high level and another to the low level, one of which is blocked, while the other is saturated) associated with a pulse transformer (Tl) to isolate the signals.
• DD amplification driver
• Tl pulse transformer
• isolated floating-mass power supplies are generally used to supply the drivers of the switches or else to supply voltage sensors that require, for example, a high-voltage power supply of the opto-isolation sensor type, and in a non-isolated manner. limiting other low power circuits requiring isolated power in the system.
• the present invention aims at providing an isolated power supply to minimize the costs and bulk of the energy conversion system.
• an electronic power system for the conversion of energy comprising at least one driver, at least one insulated feed with floating mass and with least one digital calculation unit for generating control signals, said driver comprises an amplification driver adapted to send the control signals to an associated pulse transformer, and the invention is characterized in that the isolated power supply floating mass is connected to the output of the amplification driver so that the control signals are recovered and used to generate the floating-state isolated power supply of the electronic power system.
• the isolated floating-mass power supply comprises a transformer with its rectifier.
• the rectifier of the insulated floating-point power supply is a diode rectifier.
• the electronic power system comprises an isolated current and voltage measuring device.
• the amplification driver is a driver for amplifying non-isolated voltage and current levels with push-pull output.
• the push-pull output of the amplification driver is composed of a combination of transistors.
• the invention relates to an isolated floating-mass power supply which comprises a transformer and a rectifier and which is characterized in that it is adapted to be powered by an output of a system amplification driver. power electronics as described above.
• the invention consists in using these control signals between the output of the amplification driver (DD) and the input of the pulse transformer (Tl) to generate floating isolated supplies as shown in FIG. 2.
• control signals are advantageously sent to a new transformer (TA) with its rectifier, diode for example, to create an insulated supply floating mass.
• TA transformer
• the transformation ratio of the transformer (TA) makes it possible to adapt the level of voltage required by the consumer circuit. Note that it is possible in a variant of the invention to add a linear regulator to stabilize the output voltage of the transformer (TA).
• Figure 1a shows the state of the art of a generic scheme of a power system
• Figure 1b is a diagram of a state of the art driver used in a power system of Figure 1a;
• FIG. 2 is a detailed diagram of the driver stage and the generation of the isolated power supply according to one embodiment.
• the electronic power systems (1) fulfill several functions according to the applications in which they are used, such as in particular the motor control for torque variation, the source conversion between a DC electrochemical accumulator and an AC distribution network, voltage level matching between two DC sources, the power variation.
• switching systems As stated above, a large majority of these systems, from a few tens of watts to several hundred kilowatts, are so-called switching systems. In other words, they are composed of semiconductor switches (13) capable of switching large currents and voltages at high frequencies.
• FIG. 1 a illustrates in block diagram form the various functions of an electronic power system (also called "energy conversion") as presented in the introduction and which is generally found in the state of the art. 'art. This scheme is also found in the context of the invention described below.
• the GND references correspond to the electric masses.
• Such an electronic system (1) comprises a measurement block MES which is composed of devices for measuring current and voltage isolated from the magnitudes located on the high voltage of the converter.
• This measurement block comprises sensors (3) isolated, by an isolation system (4), between the input measurement and an output conditioned signal.
• This output measurement signal being adapted to the usual voltage levels of a numerical calculation unit (2).
• the electronic system (1) also comprises measurement conditioning devices, communication drivers and the numerical computing unit (2). This part is the heart of the system where the operating logic of the system is implemented.
• the electronic system (1) comprises power semiconductor control devices (13).
• these devices are isolated drivers (10).
• the semiconductors are driven by driver stages which make it possible to convert control signals (12) coming from the digital computing unit (2) into low power control signals adapted to the types of switch.
• the electronic system (1) also includes power switching devices typically MOSFET semiconductors (which are the acronyms of "Metal Oxide Semiconductor Field Effect Transistor” in English which translates to metal-metal field effect transistor). semiconductor oxide) or IGBT (English Insulated Gate Bipolar Transistor or "bipolar transistor insulated gate”). These switches are connected between the output and the input of the system through an inductive energy accumulation system, typically a transformer for isolated converters or an inductor for uninsulated converters. These switching devices can be controlled by a pulse width modulation (PWM) method (Power Width Modulation).
• PWM pulse width modulation
• a driver (10) consists of an amplification driver (DD) of non-isolated voltage and current levels with push-pull outputs (15) associated with a pulse transformer ( Tl) to isolate the signals.
• the driver (10) also includes a control part (CMD) and a power part (PUI).
• the control part (CMD) and the amplification driver (DD) are isolated by an insulation (14), which can be either a galvanic isolation (pulse transformer) or an opto-isolation isolation (coupled photodiodes).
• the push-pull outputs (15) of the amplification driver (DD) can be composed of a combination of transistors.
• the voltages across the outputs (15) is generally between + 15V and -15V. They can also be at 0V.
• the power section (PUI) and the amplification driver (DD) are also isolated by an insulation (16).
• FIG. 2 represents an electronic system (1) in an embodiment according to the invention.
• the electronic system (1) comprises a driver stage and an isolated floating-mass power supply (1 1).
• the driver stage as previously described, consists of an amplification driver (DD) of non-isolated voltage and current levels with push-pull output associated with a pulse transformer (Tl) for isolating the signals.
• DD amplification driver
• Tl pulse transformer
• the control signals (12) between the output of the amplification driver (DD) and the input of the pulse transformer (Tl) are recovered and used to generate the floating isolated power supplies (1 1 ).
• a wired connection is provided such as metal wires (in particular copper), which connects the output of the amplification driver (DD) and the input of the pulse transformer (T1).
• Another embodiment of connectivity is to use the electronic tracks of an electronic card.
• the invention may include one or more floating isolated supplies.
• the floating-mass insulated power supply (1 1) comprises a transformer (TA) with its rectifier, for example with a diode, in order to create an insulated and rectified floating-mass power supply of a parameterizable amplitude at the output.
• the control signals (12) are sent to this new transformer (TA) with its rectifier.
• the transformation ratio of the transformer (TA) makes it possible to adapt the level of voltage required by the consumer circuit (not shown).
• a linear regulator can be added to stabilize the output voltage of the transformer (TA).
• the embodiment of Figure 2 may include alternative embodiments.
• a variant which consists of using secondary transformers or another variant which consists of using a n: 1 ratio secondary transformer or alternatively of using a planar transformer.
• the invention described above has the advantage of reusing existing functions in the circuit to advantageously create an isolated and local power supply to mass floating.
• the invention makes it possible to reduce the number of components as well as the cost and to reduce the size, the connectors and the cables to be distributed between the different cards.
• the invention is advantageous as regards the choice of the numerical calculation unit, it indeed makes it possible not to add the need for a PWM output to manage the different floating-mass isolated power supplies, and thus to choose a less expensive component. .

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Dc-Dc Converters (AREA)
• Power Conversion In General (AREA)
• Amplifiers (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=62873438

Family Applications (1)

Country Status (6)

Families Citing this family (1)

Family Cites Families (2)

• 2018
  • 2018-03-08 FR FR1852011A patent/FR3078846B1/fr active Active
• 2019
  • 2019-02-27 US US16/979,065 patent/US11451128B2/en active Active
  • 2019-02-27 CN CN201980017886.1A patent/CN111819776A/zh not_active Withdrawn
  • 2019-02-27 WO PCT/EP2019/054851 patent/WO2019170491A1/fr active Application Filing
  • 2019-02-27 JP JP2020546873A patent/JP2021516031A/ja active Pending
  • 2019-02-27 EP EP19706699.6A patent/EP3763025A1/de not_active Ceased

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