U ovom radu prikazana je jednostavna dijagnostička metoda jedne IGBT pogreške otvorenog kruga, namijenjena je za sustave asinkronog motornog pogona s trofaznim dvorazinskim pretvaračem s vektorskim upravljanjem. Dijagnoza pogreške zasnovana je na analizi tranzijenta referentnog vektora napona u stacionarnim koordinatama bez dodatnih senzora. Dijagnostički algoritam osigurava detekciju i lokalizaciju jedne IGBT greške u vremenu kraćem od jedne periode fundamentalnog harmonika struje statora neovisno o trenutnom operacijskom stanju pogona. Prezentirana shema dijagnostičkog sustava može se jednostavno primijeniti u električnim pogonima koji koriste algoritme vektorske modulacije naponskih vektora. Glavno postignuće istraživanja, čiji su rezultati prikazani u ovom radu, je eksperimentalna validacija analiziranih dijagnostički tehnika za IGBT greške u pogonu s algoritmom za izravno upravljanje momentom. ; In this paper a simple diagnostic method of a single IGBT open-circuit fault is presented, it is dedicated for three-phase two-level voltage-inverter-fed vector controlled induction motor drive systems. A failure diagnosis is based on a transient analysis of a reference voltage space vector in stationary coordinates, without additional sensors. The diagnostic algorithm ensures detection and localization of single IGBT failures in time shorter than one period of a stator current fundamental harmonic, without regard to a drive operation point. The presented scheme of the diagnostic system can be easily applicable in the electric drives that use voltage space vector modulation algorithms. The main achievement of the research, whose results have been presented in this paper, is an experimental validation of the analyzed IGBT faults diagnosis technique in the drive with the Direct Torque Control algorithm.
Primjena dijagnostičke metode za IGBT grešku otvorenog kruga u asinkronom motornom pogonu s vektorskom modulacijom i izravnim upravljanjem momentom ; Application of Open-Circuit IGBT Faults Diagnostic Method in DTC-SVM Induction Motor Drive
2017-01-25
Automatika : časopis za automatiku, mjerenje, elektroniku, računarstvo i komunikacije ; ISSN 0005-1144 (Print) ; ISSN 1848-3380 (Online) ; Volume 57 ; Issue 2
Article (Journal)
Electronic Resource
English
DDC: | 629 |
Innovations - IGBT drive diagnostics
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