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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Compensation of Disturbed Load Currents Using Active Power Filter and Generalized Non-active Power Theory
 Lettl, J. ; Šimek, Petr ; Valouch, Viktor
The principal and analysis of usage of the generalized non-active power theory for the parallel compensation of periodic and non-periodic load current disturbances is presented in the paper. The effectiveness of the generalized non-active power theory to mitigate non-periodic current disturbances is demonstrated by simulation and laboratory experiments.
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Control Strategy of Grid Connected Converter under Unbalanced Conditions
 Lettl, J. ; Bejvl, Martin ; Valouch, Viktor
Current-controlled voltage source converters are widely used in grid-connected applications. The negative sequence component of the grid voltage causes pulsating components in powers transmitted through the converterand ripple of the dc voltage in the intermediate circuit. Two strategies of the current reference calculation for a dual current controller were developed and tested in the Matlab/Simulink environment and experimentally verified as well.
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