Power Quality

Scholar Year: 2019/2020 - 2S

Courses

Head Teacher Responsability Vítor Manuel de Carvalho Fernão Pires Head

Weekly workload Hours/week T TP P PL L TC THE EL OT OT/PL TPL S Type of classes 1 1 Lectures Type Teacher Classes Hours Theorethical and Practical classes Totals 1 1,00 Vítor Pires   2,50 Laboratories Totals 1 1,00 Carlos Fortunato   2,50

Teaching language

Portuguese

Intended learning outcomes (Knowledges, skills and competencies to be developed by the students)

Study of problems related to power quality. Analysis of the impact on the electrical systems originated by poor power quality. Study of various solutions to mitigate the problems related to power quality.

Syllabus

General aspects related to power quality:
Definition of the problem of power quality
-Types of variations and disturbances
Harmonic distortion:
-Harmonic generators on the electric power grid
-Harmonics in power grid
-Standards for the limitation of harmonics
-Techniques for reducing harmonics
Power factor vs harmonic distortion
General aspects related to the measurement of harmonics:
-Classical Instruments
-True RMS Instruments
Impact of the association of rectifiers in the current harmonic distortion:
-Serial association
-Parallel association
Filters for the correction of the power factor:
-Passive Filters
-Active Filters
High power factor rectifiers:
-Condution modes
-Topologies
Harmonic attenuation on the capacitors:
-Serial and parallel resonancel
-Passive and active solutions
Uninterruptible Power Supplies (UPS):
-Rotary UPS
-Static UPS
-Principal parameters

Software

Matlab / Simulink

Demonstration of the syllabus coherence with the UC intended learning outcomes

a) Lectures: Interactive exhibition and demonstration method;
b) Practical Classes: Solving problems with relevant interest
c) Laboratory Classes: experimental method applied to the development of circuits and systems based on the knowledge acquired in the theoretical and practical lessons.

Teaching methodologies

Avaliação distribuída com exame final

Demonstration of the teaching methodologies coherence with the curricular unit's intended learning outcomes

Realization of laboratory work (L)
The lab grade is assigned based on the analysis and discussion of the reports and in the performance demonstrated by each student in the laboratory classroom.
Realization of a theoretical work with presentation in class (P)
Assessment by exam (T).

Assessment methodologies and evidences

Conditions of approval:
Final Rating = 0.35 * T + 0,35 * P + 0.35 * L

Classification of the examination ≥ 9.5
Classification of the theoretical work ≥ 9.5
Classification of the laboratory ≥ 9.5

Primary Bibliography