METHOD AND DEVICE FOR DETERMINING A PHYSICAL VARIABLE OF A MULTI-PHASE SYNCHRONOUS MACHINE

To reliably determine a state variable (G) of a polyphase synchronous machine (1) that is supplied with electric current by a polyphase power network (2) with n phases (U, . . . , N), where n≥3, the current values of at least n−1 phase currents (Iu, . . . , In-1) from at least n−1 phases (U, . . . ,...

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Main Author Mayrhofer, Andreas
Format Patent
LanguageEnglish
French
German
Published 26.01.2022
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Abstract To reliably determine a state variable (G) of a polyphase synchronous machine (1) that is supplied with electric current by a polyphase power network (2) with n phases (U, . . . , N), where n≥3, the current values of at least n−1 phase currents (Iu, . . . , In-1) from at least n−1 phases (U, . . . , N-1) of the polyphase power network (2) are detected. The state variable (G) is determined by means of the at least n−1 instantaneous current values (Iu, . . . , In-1), the current values of all n phase currents (Iu, . . . , In) from the n-phase polyphase power network (2) being detected and the n phase currents (Iu, . . . , In) being correlated with one another. The result of the correlation of all n phase currents (Iu, . . . , In) is used for a plausibility check of the n−1 phase currents (Iu, . . . , In-1) used to determine the state variable (G).
AbstractList To reliably determine a state variable (G) of a polyphase synchronous machine (1) that is supplied with electric current by a polyphase power network (2) with n phases (U, . . . , N), where n≥3, the current values of at least n−1 phase currents (Iu, . . . , In-1) from at least n−1 phases (U, . . . , N-1) of the polyphase power network (2) are detected. The state variable (G) is determined by means of the at least n−1 instantaneous current values (Iu, . . . , In-1), the current values of all n phase currents (Iu, . . . , In) from the n-phase polyphase power network (2) being detected and the n phase currents (Iu, . . . , In) being correlated with one another. The result of the correlation of all n phase currents (Iu, . . . , In) is used for a plausibility check of the n−1 phase currents (Iu, . . . , In-1) used to determine the state variable (G).
Author Mayrhofer, Andreas
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DocumentTitleAlternate PROCEDE ET DISPOSITIF DE DETERMINATION D'UNE GRANDEUR PHYSIQUE D'UNE MACHINE SYNCHRONE MULTIPHASEE
VERFAHREN UND VORRICHTUNG ZUR ERMITTLUNG EINER PHYSIKALISCHEN GRÖSSE EINER MEHRPHASEN-SYNCHRONMASCHINE
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Snippet To reliably determine a state variable (G) of a polyphase synchronous machine (1) that is supplied with electric current by a polyphase power network (2) with...
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SourceType Open Access Repository
SubjectTerms 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 PHYSICAL VARIABLE OF A MULTI-PHASE SYNCHRONOUS MACHINE
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