Design and Implementation of a Demonstration Laboratory Set for Power Quality Measurement

This paper presents the development of an experimental setup for applying active filters in power systems. With the increasing use of power electronic devices in industrial plants, harmonic issues in electrical systems have become more prevalent. Harmonics refer to sinusoidal currents or voltages with frequencies that are multiples of the fundamental frequency, often caused by nonlinear loads altering current and voltage waveforms, leading to distortion at the Point of Common Coupling (PCC). The setup for studying harmonics in power systems involves the use of induction motors controlled by Variable Frequency Drives (VFDs) to simulate nonlinear loads. Parameters are measured using a power quality analyzer. The experimental kit includes instructional materials receiving satisfactory results from experts. The results from the setup effectively showcase waveforms and parameters critical for power quality analysis, providing valuable insights for mitigating harmonic disturbances in power systems. The summary of the expert evaluations indicated that the preliminary testing of the instructional media demonstrated an average score of $\mathbf{4. 2 2}$ as a high level of appropriateness.