- Tytuł:
- Fault diagnosis of T-type three-level inverter based on bridge voltages
- Autorzy:
-
Chen, Danjiang
Liu, Yutian
Zhang, Shaozhong - Powiązania:
- https://bibliotekanauki.pl/articles/1841372.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
bridge voltage
fault diagnosis
fault signal
open-circuit fault
T-type three-level inverter
napięcie mostka
błędna diagnoza
sygnał błędu
błąd obwodu otwartego
falownik trójpoziomowy typu T - Opis:
- Multilevel inverters have been widely used in various occasions due to their advantages such as low harmonic content of the output waveform. However, because multilevel inverters use a large number of devices, the possibility of circuit failure is also higher than that of traditional inverters. A T-type three-level inverter is taken as the research object, anda diagnostic study is performed on the open-circuit fault of insulated gate bipolar transistor (IGBT) devices in the inverter. Firstly, the change of the current path in the inverter when anopen-circuit fault of the device occurred, and the effect on the circuit switching states andthe bridge voltages were analyzed. Then comprehensively considered the bridge voltages,and proposed a fault diagnosis method for a T-type three-level inverter based on specificfault diagnosis signals. Finally, the simulation verification was performed. The simulation results prove that the proposed method can accurately locate the open-circuit fault of theinverter device, and has the advantage of being easy to implement.
- Źródło:
-
Archives of Electrical Engineering; 2021, 70, 1; 73-87
1427-4221
2300-2506 - Pojawia się w:
- Archives of Electrical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł