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Energy factor proposed as a goodness factor for DC system is reviewed in this paper. More general definitions of energy storage and energy factor are presented based on the analysis of energy process. By these new definitions, energy factor and energy storage can be extended into AC system. They can be used to compare the performance of different topologies of DC converters. The investigation of transformer's...
A novel crossed traveling wave induction heating (C-TWIH) system for heating thin industrial strips is proposed and its finite element method (FEM) simulations are reported. Compared with a typical traveling wave induction heating (TWIH) device, C-TWIH has more uniform and concentrated eddy current density distributions. This is because the C-TWIH system exploits a three-phase induction heater with...
A new theory of energy concept is analyzed in the paper, namely energy factor, that is to develop the relationship of the energy stored in all passive components and its energy through put in the system. Maximum variation of energy factor (MVEF) is the key factor for the analysis and that the characteristics of MVEF for Cuk, Zeta and Sepic converters are investigated. The boundary condition of the...
This paper examines the H-bridge converter using passivity based control. The nonlinearity of resonant type H-bridge converter is poor and therefore the dynamic performance of the converter is weak. Using simple PI control, the transient response is not satisfactory. The passivity based control is first derived for the H-bridge converter. The parameter estimation is examined and the comparison with...
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