Fault-Tolerant Performance Enhancement of DC-DC Converters with High-Speed Fault Clearing-unit based Redundant Power Switch Configurations

@article{Rahimi2021FaultTolerantPE,
  title={Fault-Tolerant Performance Enhancement of DC-DC Converters with High-Speed Fault Clearing-unit based Redundant Power Switch Configurations},
  author={Tohid Rahimi and Hossein Khoun Jahan and Armin Abadifard and Mohsen Akbari and Pedram Ghavidel and Masoud Farhadi and Seyed Hossein Hosseini},
  journal={2021 IEEE Electrical Power and Energy Conference (EPEC)},
  year={2021},
  pages={492-497}
}
Fault detection and reconfiguration in fault-tolerant converters may complicated and necessitate using all-purpose microprocessors and high-speed sensors to guarantee the satisfactory performance of power converters. Therefore, providing fault-clearing feature without increasing the processing and sensing burdens and reducing the transition time between faulty to normal state are of great importance. This research proposes a new redundant-switch configuration to address the mentioned challenges… 

Figures and Tables from this paper

References

SHOWING 1-10 OF 24 REFERENCES

Single-Switch DC–DC Converter With Fault-Tolerant Capability Under Open- and Short-Circuit Switch Failures

This paper proposes fault-tolerant (FT) operation of a single-switch dc-dc converter under a switch failure. In order to improve the reliability in critical applications, FT operation is mandatory to

Photovoltaic Systems Reliability Improvement by Real-Time FPGA-Based Switch Failure Diagnosis and Fault-Tolerant DC–DC Converter

TLDR
A very fast FDM based on the shape of the inductor current associated to fault-tolerant (FT) operation for boost converter used in PV systems is proposed, showing that a switch fault can be detected in less than one switching period.

Fault-Tolerant and Reliable Structure for a Cascaded Quasi-Z-Source DC–DC Converter

This paper proposes a fault-tolerant-cascaded quasi-Z-source dc–dc converter structure and investigates its reliability through a precise mathematical evaluation. In order to enhance the reliability

Switch Short-Circuit Fault Diagnosis and Remedial Strategy for Full-Bridge DC–DC Converters

Switch fault diagnosis and remedial actions are an important design aspect for isolated full-bridge dc-dc converters, and they can highly improve reliability of the whole system. In this paper, a

Application of Soft-Switching Cell With Inherent Redundancy Properties for Enhancing the Reliability of Boost-Based DC–DC Converters

TLDR
In this article, the inherent fault-tolerant capability of the soft-switching cell for boost-based dc–dc converters is investigated and the functionality of the active soft- Switching cell to provide soft-Switching condition and fault-Tolerant capabilities are verified by experimental results.

Open-Circuit Fault Diagnosis in Interleaved DC–DC Converters

Interleaved dc-dc converters have been widely applied, because of their benefits related to efficiency, size, thermal management, modularity, and output current ripple cancellation. These converters

Switch and Diode Fault Diagnosis in Nonisolated DC–DC Converters Using Diode Voltage Signature

TLDR
A simple diagnosis technique for open-circuit and short-circuits faults of the switch and diode in nonisolated dc–dc converters using diode voltage as the detection signature and results confirm the technique capability for switch anddiode fault diagnosis in less than one switching cycle.

Reliability evaluation of a fault-tolerant three-phase interleaved DC-DC boost converter

TLDR
This paper uses Markov chain method to evaluate the reliability of the system and proposes a new reconfiguration and switching strategy, bypassing the faulty phase (faulty switch), thus, the other phases can share the responsibility of the faultyphase.

A Diagnosis Algorithm for Multiple Open-Circuited Faults of Microgrid Inverters Based on Main Fault Component Analysis

TLDR
A new open-circuit fault diagnosis algorithm for multiple switch of microgrid inverter in different load change condition is presented and the actual computational quantity is effectively reduced without affecting the accuracy and stability of the diagnosis results.

Reliability analysis of component-level redundant topologies for solid-state fault current limiter

TLDR
A comparative reliability analysis between different component-level redundant designs for solid-state fault current limiter shows that in different conditions, various configurations have higher reliability.