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- Title
Fault Recognition and Reconfiguration for Three-Phase Five-level Cascaded H-bridge Multilevel Inverter.
- Authors
Prasad, Tanu; Pattnaik, Swapnajit
- Abstract
The paper presents the fault recognition and reconfiguration technique for three-phase five-level cascaded H-bridge multilevel inverter operation. The multilevel inverter operation is carried out by using space vector modulation technique. Open switch fault is very frequent in multilevel inverter, which is located using fuzzy logic whereas the fault reconfiguration is done by adding one auxiliary inverter module with the main multilevel inverter which operates in a faulty condition and regulates the output voltage. The operation of auxiliary inverter module is according to the switching state provided which is based on a fault that occurs in a particular switch. In this method continuous operation of the main multilevel inverter is possible even in the fault condition with only one or two voltage level missed at the output. The continuous operation of multilevel inverter with reduced THD is achieved without using filter which is affirmed by MATLAB® simulation.
- Subjects
ELECTRIC power system faults; ELECTRIC inverters; FUZZY logic; FUZZY systems; VOLTAGE
- Publication
Radioelectronics & Communications Systems, 2022, Vol 65, Issue 6, p317
- ISSN
0735-2727
- Publication type
Article
- DOI
10.3103/S073527272206005X