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State-of-the-art modulation techniques, such as space-vector modulation for the generation of three-phase alternating current, result in strong peaks in the output spectrum at the switching frequency and its harmonics. We present a space-vector implementation of a novel control scheme and modulator for commercial electric vehicle inverters, that freely shapes the spectrum of the switching distortion...
In order to enable dynamic driving while increasing both safety and comfort, active suspension systems can minimize or completely eliminate roll movements in the vehicle body. Active electrical roll stabilization can provide high dynamics to compensate roll movement during cornering while rapidly compensating road irregularities. Whereas battery-stabilized 48 V systems provide sufficient power and...
Conventional inverters rely on switching modulation to generate the alternating current (AC) output required by many loads, such as electric machines. Particularly in mass-produced electric vehicles (EV), inverters exclusively use pulse-width modulation (PWM) with fixed switching rates, resulting in strong though confined peaks in the output spectrum at the switching frequency, as well as its overtones...
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