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In this paper, a new control strategy based on the passivity-based control theory of Euler-Lagrange (EL) systems is proposed for a unity-power-factor PWM rectifier. The proposed regulators are based on an energy shaping and damping injection scheme. Since the passivity-based methodology is a nonlinear approach, excellent transient response and global stability can be assured under large perturbations...
A novel circuit topology for photovoltaic charge system with high efficiency and complete protection functions was presented in the paper. A modified P&O algorithm for better tracking performance with adaptive step length adjustment was proposed. And a comprehensive strategy for maximum power point tracking (MPPT) combined with the Constant Voltage Tracking (CVT) algorithm and the modified adaptive...
This paper proposes a hybrid control method for cascaded inverter with step waveform and instantaneous current control. With this method, one part of the cascaded unit uses step waveform control, and the other part of the cascaded unit uses instantaneous control. The output voltage comes from the two parts in series. This method can decrease the switching time, reduce the switching loss. The structure...
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