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A modeling and design method of electrical drive and power converter applied to a powertrain for a heavy duty Series-Parallel Hybrid Electric Vehicle (HEV) is described in this paper. A Surface-Mounted Permanent Magnet Synchronous Motor (SMPMSM) is considered and the motor performances are validated with Finite Element Method (FEM) simulations. Moreover, the authors investigated an optimization strategy...
Three-level converters are widely utilized by industries thanks to the advantages of less dv/dt and less frequency common mode voltage in comparison to conventional two-level PWM inverters. Since these converters utilize switches as fully on or fully off elements and they feed a floating output system, common mode voltage will be unavoidable. This paper presents a comprehensive analysis of common...
Shunt-interleaved electrical drive systems consisting of several parallel medium-voltage back to back converters enable power ratings of tens of MVA, low current distortions and a very smooth airgap torque. In order to meet stringent reliability and availability goals despite the large parts count, the modularity of the drive system needs to be exploited and a suitable fault handling strategy that...
The paper deals with the diagnostic problems of the converter-fed induction motors in the case of stator faults. For diagnostic purposes the neural detector was developed trained and tested using measurement data of negative components of the stator current and impedance, for different levels of stator failures, load torque and converter frequencies. Feedforward neural network with very simple internal...
This paper describes a digital gate control approach for variable speed motor drive systems. The presented approach reduces body diode conduction time to zero without generation of cross conduction. The method uses a measurement impedance in series to the power devices of the converter system. This allows the direct detection of the current commutation interval and the load current direction in every...
The paper presents most important inferences, that have arisen from the research about technical, energetical and economical properties of photovoltaic drive systems (PDS), especially at an angle of conditions of use of different power electronic converters and their operation terms in such systems. The research has been done by availing material models (laboratory stands) and mathematical models...
In this paper, a traction system useful for an autonomous Electric Vehicle of individual use is described. The developed system is constituted in a first approach by two different power sources: one is constituted by batteries or by fuel cells, and the other by supercapacitors. This paper describes a technical solution joining and accomplishing the usage of two energy storage systems in the same traction...
An approach to constructing high power density power electronic converters is presented. The largest volume contributors in state-of-the-art construction technology are discussed. A concept to reduce the volume of converters by means of increasing the level of integration and better thermal management is introduced. Hybrid integration of power electronic circuits through partitioning the circuit into...
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