Fuzzy-logic-based approach to voltage inverter fault diagnosis in induction motor drive
نویسنده
چکیده
In this paper simulation results of a single IGBT open-circuit fault diagnostic system for a two-level voltage inverter-fed direct field-oriented controlled induction motor drive are presented. A fault diagnostic procedure is carried out by utilizing an analysis of an estimated rotor flux space vector trajectory in stationary coordinates. In the article an original approach for a fault extraction procedure based on fuzzy-logic system with on-line membership functions parameter adjustment in a fuzzification layer is proposed. Streszczenie. W artykule zaprezentowano wyniki badań symulacyjnych systemu diagnostyki uszkodzeń polegających na braku przewodzenia prądu przez jeden z tranzystorów IGBT dwupoziomowego falownika napięcia w napędzie indukcyjnym z bezpośrednim sterowaniem polowo zorientowanym. Metoda diagnostyki awarii została oparta na analizie przebiegu wektora estymowanego strumienia wirnika w układzie współrzędnych stacjonarnych -. W pracy przedstawiono oryginalny sposób ekstrakcji symptomów uszkodzeń, który polega na zastosowaniu zbiorów rozmytych o przestrajalnych parametrach funkcji przynależności w warstwie rozmywania. (Zastosowanie logiki rozmytej do diagnostyki uszkodzeń falownika napięcia w napędzie indukcyjnym).
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تاریخ انتشار 2014