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This paper presents a step by step modeling of a new improved hybrid photovoltaic fed distributed static compensator (PV-DSTATCOM) in a-b-c reference frame. Further the system average model is transformed to orthogonal synchronous (d-q) reference frame. The new improved PV-DSTATCOM is used to compensate the current distortion and reactive power, generated by a non-linear three phase bridge uncontrolled...
This paper discusses about a nonlinear control technique employed for AC/DC PFC converter to charge the battery of PHEV. It consists of two stages, first stage is conversion from ac to dc where the power factor improvement is achieved by reducing the harmonics at the input side. In second stage, output dc voltage is boosted according to the requirement. The control law implemented in the first stage...
Typical Battery charger mainly consists of two stages: AC to DC stage employing boost or interleaved boost converter where power factor correction is taken care by employing suitable control technique and boosting voltage level to an intermediate dc bus level. The second stage is DC/DC stage where the voltage is regulated according to the battery requirement and provides the galvanic isolation for...
As power generation plants which use wind energy are increasingly integrated into existing electric power systems, it becomes important to evaluate the power quality problem due to installation of wind turbine with the grid. The influence of the wind turbine in the grid system concerning the power quality measurements are-the active power, reactive power, variation of voltage, flicker, harmonics,...
This paper proposes a boost inverter topology to realize the reference currents generated by Instantaneous Symmetrical Component theory. The circuit topology and the switching pattern of the boost inverter boosts up a low voltage DC (e.g. photovoltaic panel or fuel cell) of a sustainable energy source to inject the required filter currents. The proposed boost inverter can perform load balancing, harmonic...
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