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This paper describes the impact of two different control algorithms on the behavior of a DC-DC step down converter. The compared algorithms are average current mode control and voltage mode control. Both feature advantages and disadvantages, with the former being more difficult to implement but yielding better dynamic parameters and the latter being easier to implement and more cost effective, but...
The paper presents an improved flexible method to control a vaporizer filament using a digitally controlled switch mode power supply. The vaporizer is used in portable plasma equipment for heavy metals detection. The temperature profile needed for the probe vaporization can be set using the proposed digitally controlled converter through a PC interface.
The project aims the implementation of an hydro-wind hybrid system. The advantages of this are clear: to supply the electricity in the isolated houses or group houses with limited power consumption, an alternative to the connection at the National Power Grid, especially where this is not possible. The proposed hybrid model includes a physical wind subsystem that links physical model hydro subsystem...
This This paper presents a comparison between two digital control methods for a boost power factor correction (PFC) converter based on the dynamic response at load changes and levels for the harmonic currents injected back on to the network. The power topology used is a bridgeless boost converter due to its high efficiency and low electromagnetic interferences (EMI) levels. The algorithms compared...
The development of intelligent microgrids with renewable energy sources increased significantly nowadays. The present paper examines and compares analog and digital control of a bidirectional phase shift converter in order to find out which is best suited to be used in intelligent microgrid applications. New small signal models for the direct and reverse power flow transfer modes of the converter...
This paper presents an approach of digital control with average current mode control. The model takes into account the non idealities of the components, the discrete time modeling of the Z transform, sampling, delays in the control loop and the quantization of coefficients for the control loop. First the analog compensation is made and then based on the poles and zeros, the bilinear function in Matlab...
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