Sep 2026· International Conference on Mechatronics and Electronic Technology· Vol 14358, pp. 143581P - 143581P-8· 0 citations· 11 references
Engineering
Abstract
Cascaded energy storage systems are well-suited for medium- and low-voltage power grids, offering an effective solution to power quality issues caused by the integration of renewable energy sources. However, the reliability of cascaded H-bridge converters is critically challenged by the pervasive integration of power switching devices. As the number of submodules increases, maintaining reliable operation becomes increasingly challenging. To enhance the faulttolerant capability of such systems, this paper investigates the operational behavior of CHB-based energy storage converters under single-switch open-circuit faults in power submodules. A fault-tolerant control strategy is proposed that operates without requiring hardware redundancy. By analyzing the output characteristics of the H-bridge submodule under fault conditions, a modulation reconstruction method is developed, enabling the failed module to continue operating at 50% of its nominal AC voltage.By maximizing power injection from the compromised module, this method significantly boosts system robustness under fault conditions.
Multilevel converter topologies are used in diverse applications requiring medium-voltage and high-power ratings, such as motor drives, power quality compensators, distributed generation, solid-state transformers, and energy storage systems. This paper presents a comprehensive literature review on fault diagnosis, faul...
M. Gonzalez-Garcia, Victor M. Cárdenas, R. Álvarez-Salas et al.· Applied Sciences· 0 citations
The growing demand for sustainable high-power electric drive systems requires advanced control strategies capable of ensuring high efficiency, operational reliability, and continuous service under fault conditions. Parallel multilevel inverter-fed dual-star induction machine (DSIM) drives have emerged as a promising so...
Elyazid Zaidi, Habib Benbouhenni, A. Mabrek et al.· Energies· 0 citations
With the growth of emerging data centers and electric vehicles, DC power distribution and hybrid microgrids are attracting growing attention. Due to the lack of a natural zero-crossing point in DC current, reliable DC fault protection is critical. This paper introduces a transient-minimized fault protection scheme util...
This paper presents a novel dynamic configuration for ensuring long-term fault-tolerant operation of three-phase open-end winding induction motors (3P-OEWIM). Conventional strategies are limited by their inability to sustain performance under multiple simultaneous failures, particularly when faults affect both inverter...
M. Belkheiri, A. Beladel, A. Kouzou et al.· Machines· 0 citations
With the rapid integration of renewable energy sources, inverter-based resources (IBRs), including wind power plants, photovoltaic systems, battery energy storage systems, and high-voltage direct-current converters, are progressively displacing conventional synchronous generation. This transition changes the dynamic be...
K. Tan, Woo-Jin An, Lionel Jia'An Tu et al.· Energies· 0 citations
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