Digital Signal Processing for Power Quality Enhancement within Smart Grid

Abstract

Advance Digital Signal Processing (DSP) techniques are controlling a wide range of signals in Smart Grid (SG) and narrowing the communication gap between various SG entities. Therefore, DSP is considered the backbone of SG that will meet future needs. The DSP interactions within SG are vital for SG reliability and efficiency. The advanced techniques for DSP interactions within SG are playing a pivotal role in improving the Power Quality (PQ). PQ includes technical challenges, such as instrumentation, measurement, and DSP techniques to increase knowledge of disturbances suffered by SG. PQ disturbances can have significantly different parameters and SG must deal with wide ranges of voltage and current magnitude disturbances, frequency drifts, and duration of disturbances. Power electronic components, such as (a) AC/DC converters, (b) adjustable-speed drives, (c) inverters, and (d) light dimmer controls the flow of power by de-shaping, flattening, or chopping sinusoidal power system voltages and currents. The aforementioned distortion of waveforms can affect PQ and create problems for nearby loads. SG ensures to operate linear and non-linear loads: (a) without damaging them, and (b) without reducing the efficiency of the power system.