Power Quality

Course title: Power Quality

Code: FEIT09L006

Number of credits (ECTS): 6

Weekly number of classes: 3+1+1+0

Prerequisite for enrollment of the subject: Passed: Fundamentals of Electrical Engineering 1 and 2

Course goals/Competences: Introduction to terms and definitions regarding power quality in power systems. Introduction to the analysis and monitoring aspects of power quality by means of theoretical and practical exercises in laboratory and real/practical (“field”) environment. Fundamentals of disturbances of power quality, reasons for their existence and problems with them. Possibilities for power quality improvement. Evaluation, measurements and analysis.

Total available number of classes: 180

Curriculum: Introduction. Terminology. Classification of the disturbances. Harmonics. Power under non-sinusoidal conditions. Sources of harmonics in power systems and their influence on the loads and electrical devices. Resonance in the system. Modling, simulation and calculation methods. Norms and regulation relating harmonics in power systems. Sharing the responsibilities between the energy providers and the customers. Measures for mitigation the harmo­nics in power systems. Voltage sags, short and long interruptions, voltage swells. Voltage unbalance, notches and noise. Measures against them. Flickers, sources of flickers, norms, measures against them. Grounding and wiring as a factor responding (influencing) the power quality.

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