Abstract:
This paper gives the comparative analysis of the
adaptive control mechanism which are meant for shunt
connected voltage source converter (SVSC). The adaptive
control mechanism driven in such a way to improve the quality
of electric power under non-linear loads. The authors have
implemented the three adaptive control algorithms, the adaptive
control algorithm has a filtering and adaption section, the
adaption section consists of least mean square (LMS), second
algorithm is block LMS and then an algorithm recursive least
square (RLS) finds the filter weights recursively manner. The
reference current is estimate using these adaptive filter
algorithms and compare with the SVSCcurrents to generate the
required switching signals. The algorithms are compared based
on several points, mainly convergence time of the weighted
vectors, steady state error of the incorporated adaptive
algorithm and finally the total harmonic distortion (TlID) in the
source current. The investigation on the algorithm are
performed on the Matlab/Simulink platform under nonlinear
load and dynamic load behaviour.
