1. ADAPTIVE THEORY-BASED IMPROVED LINEAR SINUSOIDAL
TRACER CONTROL ALGORITHM FOR DSTATCOM
ABSTRACT:
This paper presents a hardware implementation of three-phase distribution static compensator
(DSTATCOM) using an adaptive theory-based improved linear sinusoidal tracer (ILST) control algorithm
for different functions of DSTATCOM such as reactive power compensation for power factor correction,
harmonics elimination, load balancing, and zero-voltage regulation under linear/nonlinear loads. An ILSTbased control algorithm is used for the extraction of fundamental load currents and their active and reactive
power components. These components are used for the estimation of reference source currents. A prototype
of DSTATCOM is developed and its real-time performance is studied using a digital signal processor. The
performance of DSTATCOM is found satisfactory with the proposed control algorithm under various types
of loads.