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High-power and high-specific-impulse characteristics of Hall thrusters were experimentally studied. Input power and specific impulse reached above 5 kW and 3000 sec, respectively. As a result, the specific impulse and the thrust efficiency were 3202 sec and 61 %, respectively, with 2.8 kW. Discharge current oscillation also increased by raising discharge voltage.
Inductive Power Transfer (IPT) has recently been proposed for application with Electric or Hybrid Electric Vehicles (EV/HEV), where a highly efficient system operation is demanded for the high-power transfer. Due to the high requirements on the regulation of the output power and the output voltage, and due to the large variations of the magnetic coupling, the control of these systems is a challenging...
Development of Hall thrusters for nano, small and low-power satellites below 100W is expected. In lowering Hall thruster power, the cylindrical-type Hall thruster is more advantage than conventional coaxial-type Hall thrusters. In this study, a very low power cylindrical Hall thruster was designed, and the thruster performance was measured. As a result, a stable operation was achieved even with 10W...
This paper deals with a cost effective IPT wireless EV battery charger for smart house, which incorporates the simplest quasi -resonant soft switching pulse modulated inverter using the latest SiC-MOSFET into high-frequency isolated DC-DC converter.
In this paper a low cost prototype of wireless power transfer system based on air coupling is presented. The system here proposed can be useful for electric vehicle (EV) battery charging systems. It consists mainly of two copper wire coils, placed one in front of the other on the same axis. The inductor coil can easily be placed under the road surface (in a parking), while the other (the receiver...
The paper presents a design procedure based on simplified finite element analyses (FEAs) to compare the performances of different magnetization schemes for short-stroke tubular linear permanent magnet generators (TLPMGs) to be integrated in “free-piston” drives. The TPLMG performance is defined by the elaboration of the main electromagnetic quantities, evaluated as functions of the permanent magnet...
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