High-Efficiency Fault-Tolerant Three-Level SiC Active NPC Converter for Safety-Critical Renewable Energy Applications

Katebi, Ramin; He, Jiangbiao; Bobeck, Timothy A.; Khan, Waqar A.; Weise, Nathan

doi:10.1109/pedg.2019.8807616

Cited by 5 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This topology also applies double effective frequency in the output, reducing the size of the output capacitors. High levels of efficiency (around 97 %) have been achieved with these converters [124][125][126][127][128][129][130][131]. These topologies have some drawbacks such as fluctuations on the output DC bus and mismatches in the distribution of losses between power devices [132,133].…”

Section: Unidirectional Three-phase Rectifiers For Fast Ev Charging Stationsmentioning

confidence: 99%

High-Voltage Stations for Electric Vehicle Fast-Charging: Trends, Standards, Charging Modes and Comparison of Unity Power-Factor Rectifiers

et al. 2021

View full text Add to dashboard Cite

Emission of greenhouse gases and scarcity of fossil fuels have put the focus of the scientific community, industry and society on the electric vehicle (EV). In order to reduce CO 2 emissions, cuttingedge policies and regulations are being imposed worldwide, where the use of EVs is being encouraged. In the best of scenarios reaching 245 million EVs by 2030 is expected. Extensive use of EV-s requires the installation of a wide grid of charging stations and it is very important to stablish the best charging power topology in terms of efficiency and impact in the grid. This paper presents a review of the most relevant issues in EV charging station power topologies. This review includes the impact of the battery technology, currently existing standards and proposals for power converters in the charging stations. In this review process, some disadvantages of current chargers have been identified, such as poor efficiency and power factor. To solve these limitations, five unidirectional three-phase rectifier topologies have been proposed for fast EV charging stations that enhance the current situation of chargers. Simulation results show that all the proposed topologies improve the power factor issue without penalizing efficiency. The topologies with the best overall performance are the Vienna 6-switch and the Vienna T-type rectifier. These two converters achieve high efficiency and power factor, and they allow a better distribution of losses among semiconductors, which significantly increase the life-cycle of the semiconductor devices and the reliability of the converter.

show abstract

Section: Unidirectional Three-phase Rectifiers For Fast Ev Charging Stationsmentioning

confidence: 99%

High-Voltage Stations for Electric Vehicle Fast-Charging: Trends, Standards, Charging Modes and Comparison of Unity Power-Factor Rectifiers

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Faults in PMSM drive system are mainly divided into inverter-side faults and motor-side faults. For open-circuit faults of inverter power devices, hardware redundancy methods are mainly used 1 , and the faulty parts in the original drive system are replaced by redundant switching devices, legs, or the entire system. For stator winding opencircuit faults, a combination of hardware and software methods is mainly used 2 , realizing fault-tolerant control through the addition of redundant windings or increasing the number of stators, while using the corresponding fault-tolerant modulation algorithm.…”

Section: Introductionmentioning

confidence: 99%

Research on the application of sliding mode control in fault tolerance of PMSM drive system

Zhan,

Zhu,

Yang

et al. 2024

Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023)

View full text Add to dashboard Cite

To achieve unified fault tolerance for motor faults and inverter faults in permanent magnet synchronous motor (PMSM) drive systems, a new three-level inverter fault tolerance topology for PMSM drive system faults is proposed. This topology can carry out fault-tolerant control for as many types as possible at a relatively low hardware cost. Accordingly, a fault-tolerant control algorithm is designed based on adaptive sliding mode control to adaptively control the PMSM drive system under normal conditions and various fault conditions. Simulation and experimental results demonstrate the fault tolerance capability of this fault-tolerant topology structure and the superiority of the sliding mode control algorithm.

show abstract

“…In phase-level redundancy, an additional converter leg is added, which can replace the faulty leg entirely or complement its operation. The redundant leg may display the same configuration as the main legs [9][10][11][12][13], effectively substituting the faulty one in post-fault operation, or a distinct topology [14][15][16][17][18][19][20], which may provide advantages in regular operation but does not entirely replace the faulty phase after the fault. Converter-level redundancy consists of the association of several identical converters, which can continue to operate even if one (or more) of them fails.…”

Section: Introductionmentioning

confidence: 99%

Fault Analysis and Non-Redundant Fault Tolerance in 3-Level Double Conversion UPS Systems Using Finite-Control-Set Model Predictive Control

Caseiro

Mendes

2021

Energies

View full text Add to dashboard Cite

Fault-tolerance is critical in power electronics, especially in Uninterruptible Power Supplies, given their role in protecting critical loads. Hence, it is crucial to develop fault-tolerant techniques to improve the resilience of these systems. This paper proposes a non-redundant fault-tolerant double conversion uninterruptible power supply based on 3-level converters. The proposed solution can correct open-circuit faults in all semiconductors (IGBTs and diodes) of all converters of the system (including the DC-DC converter), ensuring full-rated post-fault operation. This technique leverages the versatility of Finite-Control-Set Model Predictive Control to implement highly specific fault correction. This type of control enables a conditional exclusion of the switching states affected by each fault, allowing the converter to avoid these states when the fault compromises their output but still use them in all other conditions. Three main types of corrective actions are used: predictive controller adaptations, hardware reconfiguration, and DC bus voltage adjustment. However, highly differentiated corrective actions are taken depending on the fault type and location, maximizing post-fault performance in each case. Faults can be corrected simultaneously in all converters, as well as some combinations of multiple faults in the same converter. Experimental results are presented demonstrating the performance of the proposed solution.

show abstract

High-Efficiency Fault-Tolerant Three-Level SiC Active NPC Converter for Safety-Critical Renewable Energy Applications

Cited by 5 publications

References 12 publications

High-Voltage Stations for Electric Vehicle Fast-Charging: Trends, Standards, Charging Modes and Comparison of Unity Power-Factor Rectifiers

High-Voltage Stations for Electric Vehicle Fast-Charging: Trends, Standards, Charging Modes and Comparison of Unity Power-Factor Rectifiers

Research on the application of sliding mode control in fault tolerance of PMSM drive system

Fault Analysis and Non-Redundant Fault Tolerance in 3-Level Double Conversion UPS Systems Using Finite-Control-Set Model Predictive Control

Contact Info

Product

Resources

About