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For the three-phase pulse-width modulated (PWM) rectifiers, the controller's performance can be influenced by the mathematic model error, parameter variation and external disturbances, etc. This paper presents a robust H∞ control method for the PWM rectifiers to improve the control performance. The outer voltage loop controller and the inner current loop controller are designed separately. Based on...
This paper studies on the design of planar bus bar in the high-power converter. Firstly, the impedance characteristic of planar bus bar and the performance of EMI are analyzed. The design of planar bus bar is restricted by the spatial layout for physical devices. The traditional design method, the partial element equivalent circuit (PEEC), is based on the assumption that the current was uniformly...
Visual cryptography (VC) schemes hide the secret image into two or more images which are called shares. The secret image can be recovered simply by stacking the shares together without any complex computation involved. The shares are very safe because separately they reveal nothing about the secret image. In this paper, a color visual cryptography scheme producing meaningful shares is proposed. These...
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