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For drive train efficiency estimation, three-level inverters are analyzed regarding different modulation techniques and switching frequencies. In this paper an optimized operating mode selector is proposed to choose a loss optimal modulation technique and switching frequency for each operating point. Energy savings due to the operating mode selector are validated on a driving cycle.
In the present study, five detailed reaction mechanisms have been employed for simulating 530 ignition delay times involving mixtures containing methane, hydrogen, carbon monoxide and carbon dioxide. A novel concept, Reaction Significance Analysis (RSA), has been used for identifying those kinetic parameters which have the greatest influence on the disparities between a given set of experimental data...
Numerical optimisation related to the estimation of kinetic parameters and model evaluation is playing an increasing role in combustion as well as in other areas of applied energy research. The present work aims at presenting the current probability-based approaches along applications to real problems of combustion chemical kinetics. The main methods related to model and parameter evaluation have...
For drive train efficiency estimation, loss models of the battery, an optional DC/DC converter, an inverter and the electrical machine are presented. Harmonic iron losses of the machine caused by current ripple ar'e considered in order to evaluate various modulation strategies and switching frequencies of the inverter. Battery voltage optimizations are analysed regarding the overall drive train efficiency...
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