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The features of braking modes of frequency-controlled electric drive with capacitive energy storage are considered. The equations to estimate the energy of electric drive in the braking modes and main connection diagrams of electric drive with ultracapacitors with their advantages and disadvantages are shown. The methodic of energy calculation, which are transferred to the ultracapacitor in the braking...
the article describes braking resistance parameters calculating method through the definition of recuperated energy and average power returned to the DC link. Mathematical model of power stage, which consist of rectifier, power filter, inverter with sinusoidal PWM three-sectional permanent magnet synchronous machine motor and take into account parameters of the electric drive of the azimuth axis trajectory...
This article deals with the simulation of the power converter with voltage-source inverter and sine-filter. The repetitive control system was designed. The existing power converter has a control system which makes Fourier transform of the output voltage to inject these harmonics with opposite phase. The new proposed system based on repetitive controller which is much simpler and with smaller CPU load...
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