WO2016207832A1 - Appareil éléctrique-électronique pour alimenter un ou plusieurs moteurs électriques - Google Patents

Appareil éléctrique-électronique pour alimenter un ou plusieurs moteurs électriques Download PDF

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Publication number
WO2016207832A1
WO2016207832A1 PCT/IB2016/053753 IB2016053753W WO2016207832A1 WO 2016207832 A1 WO2016207832 A1 WO 2016207832A1 IB 2016053753 W IB2016053753 W IB 2016053753W WO 2016207832 A1 WO2016207832 A1 WO 2016207832A1
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WO
WIPO (PCT)
Prior art keywords
phase
winding
stage
windings
output
Prior art date
Application number
PCT/IB2016/053753
Other languages
English (en)
Spanish (es)
Inventor
Carlos Emiro FERNANDEZ ALVAREZ
Original Assignee
Clesus Sas
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 Clesus Sas filed Critical Clesus Sas
Publication of WO2016207832A1 publication Critical patent/WO2016207832A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • 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
    • 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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/06—Arrangements for speed regulation of a single motor wherein the motor speed is measured and compared with a given physical value so as to adjust the motor speed
    • 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/292—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
    • H02P7/293—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC using phase control

Definitions

  • the present invention relates to an electric-electronic apparatus that is used to power one or more electric motors that, after being designed and manufactured, when energized, require changes in one or more of the parameters of power, voltage, current or How often they will be fed.
  • SECV Electronic Speed Control Systems
  • the SECV in Medium Voltage (MT) has an acquisition cost, for this reason in some industrial applications SECV in Low Voltage (BT) is used with coupling transformers immersed in oils or dielectric liquids.
  • MT Medium Voltage
  • BT Low Voltage
  • SECVs also generate harmonic distortion that pollutes electrical networks.
  • the pollution generated by the use of SECVs can be controlled by various methods, some of which limit the use of conventional transformers and to operate properly it is necessary to use special transformers.
  • the specific application of SECV in BT with coupling transformers immersed in oils or coolant dielectric liquids is described in Figure 1.
  • the voltage of the three-phase line in MT (20) is connected to an input winding (21) of the input transformer immersed in dielectric oil (22), which reduces the input voltage in the output winding (23) to a BT voltage.
  • the input transformer immersed in dielectric oil is an independent device and separate from the SECV (25), therefore it is necessary that an external connection wiring (24) be placed between these two equipment so that the SECV (25) can be powered which is in BT.
  • the SECV (25) in BT in turn adjusts the frequency and current characteristics and delivers a voltage in BT.
  • the SECV (25) is an independent equipment, other external connection wiring (26) that reaches the low voltage winding (27) of the output transformer immersed in dielectric oil (28), which at its once, in the output winding (29) it delivers a three-phase voltage in MT (30), with which the motor is powered.
  • the input transformers immersed in oils or dielectric cooling liquids (22) must be designed with one, two or more output windings (23) that are offset from each other +/- 60 0 , +/- 30 0 , +/- 22.5 °, +/- 15 ° or + 1-1.5 ° electrical degrees according to the number of SECV pulses in order to mitigate the harmonics produced by said SECV.
  • the output transformer immersed in oils or coolant dielectric liquids (28) must have special conditions to power the motor or load and vary the speed of operation of the latter, it must supply a wide variety through its output winding (29). of voltages, frequencies and currents.
  • the most common cooling medium of transformers is mineral dielectric oil.
  • the mineral oil residue is considered hazardous according to the Basel 2000 agreement. For this reason, the spill or poor disposal of the oil at the end of its useful life creates an environmental risk due to the use of this type of transformers .
  • containment pools must be built, which also have a high construction cost.
  • Figure 1 corresponds to a graph of the specific application of SECV in BT with coupling transformers immersed in oils or cooling dielectric liquids.
  • Figure 2 corresponds to the equipment of the invention designed to connect to a single source and powering a single motor.
  • Figure 3 corresponds to an embodiment of the equipment connected to one or several sources and feeding one or more motors.
  • Figure 4 corresponds to another modality of the equipment connected to one or several sources and feeding one or several motors.
  • Figure 5 corresponds to another modality of the equipment connected to one or several sources and feeding one or several motors.
  • Figure 6 corresponds to the characteristics of the intermediate feeding stage, the electronic conversion stage and the intermediate charging stage when the electronic conversion stage has a single rectifier bridge, which contains an inductance and capacitance connected in series .
  • Figure 7 corresponds to the characteristics of the intermediate feeding stage, the electronic conversion stage and the intermediate charging stage when the electronic conversion stage has a single rectifier bridge, which contains a parallel connected capacitance and capacitance.
  • Figure 8 corresponds to the characteristics of the system when there are several elements in the electronic conversion stage and it is desired to feed one or more motors independently.
  • Figure 9 corresponds to a perspective view of the device of the present invention.
  • Figure 10 corresponds to top, bottom, side and front flat views of the device of the present invention.
  • the device proposed by the invention is an electric-electronic device that has been specifically designed to ensure compliance with safety and environmental care requirements, reducing installation, maintenance and final disposal costs when motors to which motors are to be fed. They should vary their speed over time.
  • all the elements of the equipment proposed by the invention are contained in a single enclosure without liquids of any kind which eliminates the risks of external connections and the risks that arise when using transformer oils.
  • This enclosure prevents accidental access to any living part of the equipment components.
  • it is necessary to enter the installation to make adjustments of voltages or connections in the installed elements in the new equipment it is neither possible nor necessary to enter to make these adjustments because all the elements are contained in a single solid enclosure.
  • the invention makes the total space occupied by the new equipment 35% or less, depending on the required power, of the space required in current installations, and the total weight of the equipment is reduced by a 50% or more compared to the weight of current facilities.
  • the equipment can be powered directly by its input side with voltages of up to 36,000 Volts and by its output side it can deliver multiple voltages of up to 8,000 Volts and is capable of operating at different current values.
  • all these parameters of frequency, voltage and current can be changed over time.
  • the device is designed to contain and feed one or several SECVs, with Low or Medium Voltage voltages, which in turn allow one or more electric motors to be fed simultaneously with signals up to 150 Hz, this gives the equipment a versatility that current technology does not have.
  • the equipment object of the new invention (14) has an input stage that connects to the three-phase network or power supply three-phase (1) up to 36,000 Volts, through the external connections of a three-phase input winding (2) and an output stage that connects to the load or motor through a three-phase output winding (10) that has several groups of turns independent, each group has independent outputs that are connected to one or several switches (1 1), which allow to obtain different output voltages according to the position in which they are placed and also, taking into account that the connection changer (12 ) allows externally changing the type of connection or vector group of the three-phase output windings (10), multiplies the number of voltages that the equipment delivers at the connection (13) to the motor, according to the number or of switch positions, the number of switches and the number of positions the connection exchanger has.
  • the motor or load is powered by voltages up to 8,000 volts and at multiple frequencies up to 150 Hz and currents that vary according to the power and output voltage at the connection (13).
  • the equipment object of the new invention (14) has an input stage that connects to the three-phase network or power supply three-phase (1) that is up to 36,000 Volts, through the external connections of a three-phase input winding (2) and an output stage that connects to the loads or motors through a three-phase output winding (10) that has several groups of independent turns, these groups of turns are subdivided into several groups which are located on the same magnetic circuit or on independent magnetic circuits; each subgroup of turns is connected to one or more switches (1 1) that allow to obtain different output voltages according to the position in which they are placed and in addition, each subgroup of turns (10) is connected to a connection changer (12 ) that changes the vector group of the connection of the subgroup of turns (10), which allows to multiply the number of voltages that
  • the equipment object of the new invention (14) has an input stage that connects to the three-phase network or networks or three-phase power supplies (1) that are up to 36,000 Volts, through the external connections of two or more three-phase input windings (2), which are on the same magnetic circuit or on independent magnetic circuits and an output stage that is Connects to the load or motor through a three-phase output winding (10) that has several groups of independent turns, each group has independent outputs to one or several switches (1 1) that allow to obtain different output voltages according to the position in that are placed and also, with the connection changer (12) the vector group of the winding connection (10) is changed, which allows multiplying the number of voltages delivered by the equipment and n the connection (13) to the motor, which is up to 8,000 volts and at multiple frequencies and currents.
  • the equipment object of the new invention (14) has an input stage that connects to the three-phase network or networks or three-phase power supplies (1) of up to 36,000 Volts, through the external connections of two or more three-phase input windings (2), which are on the same magnetic circuit or on independent magnetic circuits and an output stage that connects to the loads or motors by means of a three-phase output winding (10) that has several groups of independent turns, these groups of turns are subdivided into several groups the which are on the same magnetic circuit or on independent magnetic circuits; each subgroup of turns is connected to one or several switches (1 1) that allow to obtain different output voltages according to the position in which they are placed and in addition, each subgroup of turns (10) is connected to a connection changer (12 ) that changes the vector group of the connection of the subgroup of turns (10), which allows to multiply the number of voltages that each subgroup of turns turns (10). In this way, the equipment feeds independently at the outputs to
  • Figures 6 and 7 describe the characteristics of the intermediate feed stage, the electronic conversion stage and the intermediate charge stage when the electronic conversion stage has a single rectifier bridge (7).
  • the signal (3) from the input stage is connected to the intermediate supply stage (4) and (5) through the terminals of the intermediate supply winding (4) or by a common magnetic circuit ; the intermediate winding is connected in turn with the filter medium (5), which contains an inductance and capacitance connected in series as seen in Figure 6 or in parallel as seen in Figure 7.
  • the filter medium (5) It is connected to the electronic conversion stage (6) which is basically composed of a SECV which in turn contains an Alternating Current to Direct Current (AC / DC) converter section also called a rectifying section and a converting section (CD / AC) , also called inverter section connected by a link or Bus-DC and form three-phase bridge rectifier configurations (7) that for this case have 6 controlled switches (IC) that can be Semiconductor Devices, Solid State Elements, Transistors (IGBT), Thyristors (SCR) or Triodes for alternating current (TRIAC), among others.
  • the electronic control system contains special programming algorithms to direct its operation.
  • the algorithms, programs or programming techniques used to operate this control system are not discussed in this document because the apparatus object of the invention is designed to work with various electronic control systems that are coupled and decoupled to the apparatus object of the invention.
  • the electronic conversion stage (6) is connected to the intermediate charging stage by the winding input terminals (8) of the intermediate charging stage, which in turn delivers the signal (9) to the output stage a through a common magnetic circuit.
  • the device has two configuration variations that are mutually exclusive. In one it does not contain the filter element (5) of figures 6 and 7, in another it contains the filter element (5) of figures 6 and 7 but does not include the elements of the input stage (2) or those of the stage intermediate feed (4).
  • Figure 8 describes the characteristics of the system when there are several elements in the electronic conversion stage and it is desired to feed one or more motors independently.
  • the signal (3) from the input stage is connected to the windings of the intermediate power stage (4) through the intermediate power terminals or a common magnetic circuit.
  • the intermediate feeding stage there are one or several intermediate feeding windings (4), which are on the same magnetic circuit or on different magnetic circuits. According to their configuration and the number of turns, the intermediate feed windings (4) generate multiple three-phase intermediate feed outputs, where each group of three-phase outputs of the multiple intermediate feed outputs has a different phase angle than the others. groups according to the connection configuration and the number of turns.
  • the groups of intermediate feed windings (4) are connected to a group or different groups of two or more rectifier bridges (7) of the electronic conversion stage (6) which is basically composed of a SECV which in turn contains a section Alternating Current to Direct Current (AC / DC) converter also called rectifier section and a converter section (CD / AC), also called inverter section connected by a link or Bus-DC and form three-phase rectifier bridge configurations (7) containing 6 N (With N belonging to natural numbers or natural numbers divided by 2) controlled switches (IC) which can be Semiconductor Devices, Solid State Elements, Transistors (IGBT), Thyristors (SCR) or Triodes for alternating current (TRIAC), among others.
  • the electronic control system contains special programming algorithms to direct its operation.
  • the algorithms, programs or programming techniques used to operate this control system are not discussed in this document because the apparatus object of the invention is designed to work with various electronic control systems that are coupled and decoupled to the apparatus object of the invention.
  • the group or groups of two or more rectifier bridges (7) of the electronic conversion stage (6) are connected to one or more windings (8) of the intermediate loading stage by the input terminals of said windings (8) .
  • the stage winding (s) Intermediate load (8) deliver the signal or signals (9) to the windings of the output stage (10) through one or more common magnetic circuits.
  • the team also has the option of containing two or more elements in the electronic conversion stage in which at least one of them has only one rectifier bridge (7) and the others have two or more rectifier bridges (7).
  • the winding groups of the input stage, the intermediate feed stage, the intermediate load stage and the output stage are connected or disconnected from each other to operate independently or in parallel. When these windings are connected and disconnected from each other, you have the option to vary the output power of the equipment according to the powers of the windings that are entering or leaving the circuit or you also have the option of feeding different loads.
  • These groups of windings are connected to their respective load by one or more different vector groups switchable with each other, operating independently or together.
  • Each of the vector groups may have three or more external connection terminals.

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

Abstract

L'invention concerne un appareil électrique-électronique sans huiles ni liquides diélectriques de refroidissement qui est utilisé pour alimenter des moteurs électriques et qui modifie les paramètres de fréquence, tension, courant et puissance de signaux électriques. L'appareil est connecté aux signaux électriques en provenance de réseaux ou sources d'alimentation par des bornes d'enroulements d'entrée enroulés en circuits magnétiques qui modifient la tension et le courant du signal provenant des sources ou par les bornes d'un milieu filtrant qui contient des inductances et des capacitances. Lesdits enroulements ou milieux filtrants se connectent de manière interne à des systèmes électriques de commande de vitesse qui modifient la fréquence du signal et ultérieurement, par de réglages spéciaux des enroulements et systèmes de commutation, de multiples tensions, courants et puissances sont générés dans le signal avec lequel sont alimentés les moteurs ou charges nécessaires par différentes bornes de sortie.
PCT/IB2016/053753 2015-06-24 2016-06-23 Appareil éléctrique-électronique pour alimenter un ou plusieurs moteurs électriques WO2016207832A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CO15-145095 2015-06-24
CO15145095 2015-06-24

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WO2016207832A1 true WO2016207832A1 (fr) 2016-12-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023083391A1 (fr) * 2021-11-12 2023-05-19 Clesus S.A.S. Appareil éléctrique-électronique pour alimenter un ou plusieurs moteurs électriques ou réseaux électriques

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684914A (en) * 1948-10-29 1952-12-24 Bryant Grinder Corp Improvements in variable-frequency power-supply system
GB1214681A (en) * 1967-04-26 1970-12-02 Gen Electric Power control circuit particularly for motor systems
EP2618472A2 (fr) * 2012-01-18 2013-07-24 Hamilton Sundstrand Corporation Convertisseur de puissance avec autotransformateur à décalage de phase asymétrique pour moteur à courant alternatif (CA)

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB684914A (en) * 1948-10-29 1952-12-24 Bryant Grinder Corp Improvements in variable-frequency power-supply system
GB1214681A (en) * 1967-04-26 1970-12-02 Gen Electric Power control circuit particularly for motor systems
EP2618472A2 (fr) * 2012-01-18 2013-07-24 Hamilton Sundstrand Corporation Convertisseur de puissance avec autotransformateur à décalage de phase asymétrique pour moteur à courant alternatif (CA)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023083391A1 (fr) * 2021-11-12 2023-05-19 Clesus S.A.S. Appareil éléctrique-électronique pour alimenter un ou plusieurs moteurs électriques ou réseaux électriques

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