METHOD AND DEVICE FOR DETERMINING A MOMENTARY TORQUE OF AN ELECTRONICALLY SWITCHED ELECTRIC MACHINE AND FOR REGULATING THE AVERAGE TORQUE

The invention relates to a method for determining an actual torque of a multiphase electric machine (2), said electric machine (2) being controlled by means of a driver circuit (3), whereby phase voltage or phase potential profiles are applied to phases of the electric machine (2), said method compr...

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Hauptverfasser: GERHARD KNECHT, DAVID FRICKER
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DAVID FRICKER
description The invention relates to a method for determining an actual torque of a multiphase electric machine (2), said electric machine (2) being controlled by means of a driver circuit (3), whereby phase voltage or phase potential profiles are applied to phases of the electric machine (2), said method comprising the following steps: the received electric power (PEl) and the ohmic power loss of the electric machine (2) is determined; the mechanical power (PMech) provided by the electric machine (2) is determined by a power balance according to the received electric power and the ohmic losses; and the actual torque (MIst) is determined on the basis of the determined mechanical power (PMech). La presente invención se refiere a un procedimiento para determinar el torque real de una máquina eléctrica polifásica (2), la máquina eléctrica (2) se controla con la ayuda de un circuito controlador (3), en el cual se introduce las trayectorias de las tensiones de fase o los potenciales de fase en los ramales de fase de la máquina eléctrica, (2), con los siguientes pasos: - calcular la potencia eléctrica consumida (PE1) y la disipación de potencia óhmica de la máquina eléctrica (2); - calcular la potencia mecánica producida (PMech) por la máquina eléctrica (2) mediante un balance de la potencia dependiente de la potencia eléctrica consumida y de las pérdidas óhmicas; .- determinar el torque real (MIst) con la ayuda de la potencia mecánica determinada (PMech).
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La presente invención se refiere a un procedimiento para determinar el torque real de una máquina eléctrica polifásica (2), la máquina eléctrica (2) se controla con la ayuda de un circuito controlador (3), en el cual se introduce las trayectorias de las tensiones de fase o los potenciales de fase en los ramales de fase de la máquina eléctrica, (2), con los siguientes pasos: - calcular la potencia eléctrica consumida (PE1) y la disipación de potencia óhmica de la máquina eléctrica (2); - calcular la potencia mecánica producida (PMech) por la máquina eléctrica (2) mediante un balance de la potencia dependiente de la potencia eléctrica consumida y de las pérdidas óhmicas; .- determinar el torque real (MIst) con la ayuda de la potencia mecánica determinada (PMech).</description><language>eng ; spa</language><subject>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS ; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20130320&amp;DB=EPODOC&amp;CC=MX&amp;NR=2013000611A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20130320&amp;DB=EPODOC&amp;CC=MX&amp;NR=2013000611A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GERHARD KNECHT</creatorcontrib><creatorcontrib>DAVID FRICKER</creatorcontrib><title>METHOD AND DEVICE FOR DETERMINING A MOMENTARY TORQUE OF AN ELECTRONICALLY SWITCHED ELECTRIC MACHINE AND FOR REGULATING THE AVERAGE TORQUE</title><description>The invention relates to a method for determining an actual torque of a multiphase electric machine (2), said electric machine (2) being controlled by means of a driver circuit (3), whereby phase voltage or phase potential profiles are applied to phases of the electric machine (2), said method comprising the following steps: the received electric power (PEl) and the ohmic power loss of the electric machine (2) is determined; the mechanical power (PMech) provided by the electric machine (2) is determined by a power balance according to the received electric power and the ohmic losses; and the actual torque (MIst) is determined on the basis of the determined mechanical power (PMech). 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La presente invención se refiere a un procedimiento para determinar el torque real de una máquina eléctrica polifásica (2), la máquina eléctrica (2) se controla con la ayuda de un circuito controlador (3), en el cual se introduce las trayectorias de las tensiones de fase o los potenciales de fase en los ramales de fase de la máquina eléctrica, (2), con los siguientes pasos: - calcular la potencia eléctrica consumida (PE1) y la disipación de potencia óhmica de la máquina eléctrica (2); - calcular la potencia mecánica producida (PMech) por la máquina eléctrica (2) mediante un balance de la potencia dependiente de la potencia eléctrica consumida y de las pérdidas óhmicas; .- determinar el torque real (MIst) con la ayuda de la potencia mecánica determinada (PMech).</abstract><oa>free_for_read</oa></addata></record>
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subjects CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
title METHOD AND DEVICE FOR DETERMINING A MOMENTARY TORQUE OF AN ELECTRONICALLY SWITCHED ELECTRIC MACHINE AND FOR REGULATING THE AVERAGE TORQUE
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