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A method of output voltage regulation and voltage harmonic elimination in a pulse-width modulated AC chopper using genetic algorithms (GA) is proposed. The output voltage of the AC chopper with k pulses per half cycle is expressed in terms of switching angles using Fourier series, and the best switching angles are identified for harmonic elimination and improving output voltage regulation. The problem...
In this paper, an approach for the design of predictive controller for fourth order buck topologies is proposed. The controller is designed to achieve the load voltage regulation against load and source disturbances. A zero ripple technique is used to reduce the ripple in inductor current. The dynamic characteristics of the coupled fourth order buck converter are compared with the uncoupled converter...
This paper presents a simple two-loop voltage-mode control scheme for the buck converter with input filter. In this voltage-mode control scheme the controller do not need any external saw-tooth generator for PWM generation and the loop design is also easier. The controller implementation requires only a single compensator in the outer loop and gives almost current-mode control performance. The proposed...
In this paper, a new control method for the utility interactive inverter based on the deadbeat control with FPGA based hardware controller is proposed. Deadbeat control is one method to ensure the output voltage or current matches to the references at the sampling instant, so adopting this control method to the utility interactive inverter, the response of the system is much improved with small LC...
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