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Two-stage matrix converter (TSMC) is a kind of new matrix converter developed on the basis of the conventional nine-switch matrix converter and, by virtue of its advantages, more suitable for serving as the exciter of doubly-fed wind power generation system. This paper made a deep analysis to the topology structure of TSMC and took accordingly the PWM space vector and zero current commutation to research...
This paper analyzes the basic control principle of space vector PWM combined with hysteresis, and applies this method to control the Parallel Active Power Filter (APF). The simulation results through Matlab show that the output compensation current at any time can be real-time tracking the instruction current of the APF to reduce the current compensation error effectively, and eliminate the harmonic...
In summary, the reduction of the Schottky-barrier height for the n-type semiconductor under external mechanical strain is observed. This reduction is shown to originate from the reduction of conduction band edge. The boundary condition under uniaxial strain technology is stress-free along the direction perpendicular to uniaxial stress obtain the reasonable agreement between data and theoretical calculation
A amplitude sensitive balanced detection polarimeter is setup. The polarization gating and the spatial coherence gating enable to reduce the scattering effect The glucose concentration in a polystyrene microsphere scattering medium was measured successfully
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