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The switching frequency affects the efficiency of a secondary‐side converter that is configured with a diode bridge rectifier connected to a DC‐DC converter in an inductive power transfer (IPT) system. The efficiency characteristics for the switching frequency of a secondary‐side converter were analyzed theoretically in order to establish a highly efficient control scheme the controls the switching...
An asymmetric flying capacitor multilevel H-bridge inverter has proposed as a drive circuit for switched reluctance motors. The flying capacitor multilevel H-bridge inverter uses many power semiconductor devices. In addition, two capacitors are used per phase in the inverter, although only one capacitor is required at applying 5-level voltage to the stator windings in an SRM. Therefore, the authors...
A battery charger applying an inductive power transfer (IPT) for electric vehicles has various advantages. Then, there is a case that the secondary-side converter is connected to the receiving side of the IPT system in order to regulate the charging power for the battery of electric vehicles. In the previous studies about this converter, it was investigated that the type of the secondary-side converter...
There is a case where an inductive power transfer (IPT) system is applied to battery charger for electric vehicles. A secondary-side converter, which consists of a DC-DC converter with a diode bridge rectifier, is connected to the secondary-side of the resonant circuit in order to regulate the current and voltage of a battery. Previously, the authors showed that the IPT system connected to a buck-boost...
This paper shows the considerations of the control characteristics when the surface permanent magnet synchronous motor installed in an electric vehicle is controlled by direct torque control or current control type vector control. Current control type vector control is generally used as a control method of permanent magnet synchronous motor; however, that requires a rotor position detector, the rotating...
Switched reluctance motor (SRM) is attractive for the driving motor of electric vehicles (EVs) and hybrid electric vehicles (HEVs) from the view point which does not use rare-earth materials. However, special drive circuit, which is different from general three-phase inverter used for permanent magnet synchronous motor and induction motor, is required in order to drive SRM. By the way, in some of...
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