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It is well known that the application of peak-current-mode (PCM) control produces highly desirable properties in the conventional or voltage-fed converters but requires to compensate the inductor-current loop for extending the active duty ratio beyond 50%. This paper investigates the dynamical properties and operational constraints of a PCM-controlled buck-power-stage converter in the photovoltaic...
Large-scale harvesting of solar energy is an important action to decelerate the observed climate changes and ensuring the availability of energy also in the future. It has been observed that the maximum-power-point (MPP) tracking converters have high contribution on the reliability problems in the photovoltaic energy systems because of misunderstanding of their real nature. The paper shows that most...
Reliably operating solar-energy systems composing of solar arrays and their interfacing converters are of prime importance to maximize the solar-energy harvesting. The paper investigates the solar-generator-interfacing problems in terms of voltage-fed maximum-power-point tracking converters and shows that there are two main reasons for the observed stability problems of which the one is the violation...
In this paper a computer package-NETOMAC, which is developed by Siemens power transmission and distribution group and used to analyze system voltage collapses in time-domain, is presented. The components, which significantly affect the voltage stability, are modeled in detail with the NETOMAC controllers in the simulation process. The advantage of NETOMAC is that it can simulate nearly all dynamic...
Class D amplifiers are becoming the most feasible solution for embedded audio application. However, distortions due to the non-linear nature of switching stage are the main drawback for this amplifier topology. This paper discusses the design and implementation of high fidelity audio class D using sliding mode control scheme. This design method proves to be a cost effective solution for industrial...
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