The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2018
Filed:
Jun. 24, 2016
B&r Industrial Automation Gmbh, Eggelsberg, AT;
Andreas Mayrhofer, Timelkam, AT;
B&R INDUSTRIAL AUTOMATION GMBH, Eggelsberg, AT;
Abstract
To reliably determine a state variable (G) of a polyphase synchronous machine () that is supplied with electric current by a polyphase power network () with n phases (U, . . . , N), where n≥3, the current values of at least n−1 phase currents (I, . . . , I) from at least n−1 phases (U, . . . , N-1) of the polyphase power network () are detected. The state variable (G) is determined by means of the at least n−1 instantaneous current values (I, . . . , I), the current values of all n phase currents (I, . . . , I) from the n-phase polyphase power network () being detected and the n phase currents (I, . . . , I) being correlated with one another. The result of the correlation of all n phase currents (I, . . . , I) is used for a plausibility check of the n−1 phase currents (I, . . . , I) used to determine the state variable (G).