Journal ArticleDOI
Fault Diagnosis of a ZVS DC–DC Converter Based on DC-Link Current Pulse Shapes
TLDR
A low-cost diagnostic method for MOSFET faults in a zero- voltage-switching dc-dc converter is proposed that utilizes the dc-link current patterns as the signatures of faults of MOSfETs.Abstract:
The dc-dc converter is a critical component in a hybrid electric vehicle since it supplies power to an electronic control unit, as well as chassis electric components such as power windows, wipers, etc. In this paper, a low-cost diagnostic method for MOSFET faults in a zero- voltage-switching dc-dc converter is proposed. The proposed method utilizes the dc-link current patterns as the signatures of faults of MOSFETs. A presignal processing circuit consists of a peak detector and an integrator circuit. The ratio of peak-to-integral values, which is similar to the crest factor, is useful for diagnosis.read more
Citations
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Journal ArticleDOI
Efficiency-Optimized High-Current Dual Active Bridge Converter for Automotive Applications
Florian Krismer,Johann W. Kolar +1 more
TL;DR: An efficiency-optimized modulation scheme and design method are developed for an existing hardware prototype of a bidirectional dual active bridge (DAB) dc/dc converter, and the average efficiency rises from 89.6% to 93.5%.
Journal ArticleDOI
Accurate Power Loss Model Derivation of a High-Current Dual Active Bridge Converter for an Automotive Application
Florian Krismer,Johann W. Kolar +1 more
TL;DR: The main reasons why the conventional method for converter analysis fails are described and the different steps required to predict the power losses more accurately are documents.
Journal ArticleDOI
Accurate Small-Signal Model for the Digital Control of an Automotive Bidirectional Dual Active Bridge
Florian Krismer,Johann W. Kolar +1 more
TL;DR: In this paper, an accurate small-signal model for a galvanically isolated, bidirectional dc-dc converter and the implementation of a corresponding controller on a DSP as well as key methods and functions required for the digital implementation are detailed.
Journal ArticleDOI
A comprehensive study on different types of faults and detection techniques for solar photovoltaic system
TL;DR: This paper provides a comprehensive review of popular fault detection techniques, addressing all major types of faults in PV systems, and proposes a new fault detection technique to identify the type and location (module level) of a fault.
Journal ArticleDOI
Model-Based Fault Detection and Identification for Switching Power Converters
Jason Poon,Palak Jain,Ioannis C. Konstantakopoulos,Costas J. Spanos,Sanjib Kumar Panda,Seth R. Sanders +5 more
TL;DR: In this article, a model-based fault detection and identification (FDI) method for switching power converters using a modelbased state estimator approach is presented. But the proposed FDI approach is general in that it can be used to detect and identify arbitrary faults in components and sensors in a broad class of switches.
References
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Book
Power Electronics: Converters, Applications and Design
TL;DR: In this paper, the authors present a simulation of power switch-mode converters for zero-voltage and/or zero-current switchings in power electronic converters and systems.
Journal ArticleDOI
Power electronics intensive solutions for advanced electric, hybrid electric, and fuel cell vehicular power systems
TL;DR: In this article, the authors reviewed the present situation as well as projected future research and development work of advanced vehicular electrical power systems including those of electric, hybrid electric, and fuel cell vehicles (EVs, HEVs, and FCVs).
Journal ArticleDOI
Fault detection of open-switch damage in voltage-fed PWM motor drive systems
R.L. de Araujo Ribeiro,Cursino Brandao Jacobina,E.R.C. da Silva,Antonio Marcus Nogueira Lima +3 more
TL;DR: In this article, the authors investigated the use of different techniques for fault detection in voltage-fed asynchronous machine drive systems, which requires the measurement of some voltages and is based on the analytical model of the voltage source inverter.
Book
Propulsion Systems for Hybrid Vehicles
TL;DR: In this article, the authors give comprehensive coverage of all aspects of the hybrid vehicle design, from its power plant and energy storage systems, to supporting chassis subsystems necessary for realising hybrid modes of operation.
Journal ArticleDOI
Diagnosis by parameter estimation of stator and rotor faults occurring in induction machines
TL;DR: A new faulty model dedicated to broken rotor bars detection is proposed and the corresponding diagnosis procedure based on parameter estimation of the stator and rotor faulty model is proposed.