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The operation of grid side converters (GSC) is significant in its robust control design. Phase locked loop (PLL) algorithm is introduced to acquire synchronization and perfect operation of GSC. The control design depends on rapid and exact tracking of phase angle of grid voltage. The task of PLL is crucial condition, since grid connected system is to operate the power system under grid fault conditions...
Integration of renewable and non-renewable energy has been developing rapidly, due to emerging smart grid technologies and growing energy demand. This paper proposes the design of converter, to synchronize the renewable energy like PV and wind with the grid. Generally, the output from the renewable energy sources is always variable in nature. This necessitates the inclusion of an interface like the...
A rapid grid synchronization technique is proposed for enhanced low voltage ride-through (LVRT) operation of voltage source inverter based distributed energy resource (DER). The proposed synchronization method aims at enhancing the LVRT capability by providing fast information of the fundamental positive and negative sequence components of the grid voltage vector. This is achieved by a novel pre-filter,...
This paper deals with the problem of the design of an all-digital implementation of a three-phase PLL and the control logic of a shunt active filter implemented with a Multilevel Current Source Inverter (MCSI). The active filter is connected to the medium voltage level of a power distribution system where compensation of reactive power and harmonics is mandatory. The PLL is essential to obtain a reference...
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