Abstract
Numerical Simulation of Intermediate-Frequency Vacuum Arc
Highlights
The increasing demands on the world's energy reserves and the continuous growth of the aviation industry have encouraged the aircraft manufacturers to move toward more/all electric solutions
EFFECT OF FREQUENCY ON PLASMA PARAMETERS AND ARC VOLTAGE The variation trend of the ion density of the vacuum arc at a current of 5 kA and frequencies of 360 Hz, 465 Hz, 585 Hz, 660 Hz, and 800 Hz is shown in Fig. 5 during the arcing cycle
The peak value of plasma temperature ranges from 1.24 eV to 1.83 eV, and the peak value of plasma pressure ranges from 0.75 kPa to 2.3 kPa
Summary
The increasing demands on the world's energy reserves and the continuous growth of the aviation industry have encouraged the aircraft manufacturers to move toward more/all electric solutions. This change has led to a sharp increase in aircraft power generation capacity. As a mainstream civil aircraft, the Boeing B737NG has a generating capacity of 270 kVA, while the Boeing B787‟s capacity surges at 1,500 kVA [1], [2] In this case, the traditional "constant speed constant frequency" mode and "variable speed constant frequency" mode are unable to meet the increasing power demands of more/all electric aircraft power supply systems in terms of power supply characteristics, reliability, maintainability and weight. In modern aircraft power supply systems, such as the Airbus A380, A350 and Boeing B787, the "variable speed and variable frequency" mode has been applied [3]
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