Fault tolerant hybrid cascaded nine level multi-level inverters for grid connected applications
Abstract
Abstract A novel hybrid cascaded H-bridge (CHB) inverter topology is proposed for renewable energy applications, featuring enhanced fault tolerance. By integrating a nine-level boost switched-capacitor module with H-bridge modules, the design ensures reliable operation under faults affecting semiconductor switches or DC power supplies. The topology offers additional benefits, including voltage boosting of four and self-balancing of switched capacitors. Simulation and experimental results validate the proposed inverter’s performance under various operating conditions, demonstrating its potential for robust and efficient renewable energy systems.
Fields of Study & Subjects
Multilevel Inverters and Converters
Microgrid Control and Optimization
HVDC Systems and Fault Protection
Publication details
- Journal / source
- International Journal of Emerging Electric Power Systems
- Publisher
- Walter de Gruyter GmbH
- Volume
- 27
- Issue
- 3
- Pages
- 543–554
- Publication date
- 19 January 2026
- Language
- EN