8/13/2019 HARM.en Program

1/3

DIgSILENTPowerFactoryTraining

Harmonics Analysis

The course is intended to all power system engineers interested in the use of the harmonicanalysis simulation tools in PowerFactory. The course will be dedicated to frequency domainanalysis, such as harmonic load flows or frequency scans for identifying resonance conditionsin power systems.

Besides explanation of the power quality tools in PowerFactoryand training their usage, thecourse provides theoretical background information about harmonics sources and network im-pedance resonances. After attending the course, participants will know how to set up networkmodels for harmonics analysis correctly, and be able to conduct harmonics analysis by them-selves.

The participants should be familiar with the basic handling of DIgSILENT PowerFactory. Expe-rience withPowerFactorys frequency domain simulation functions is not required. The numberof participants is limited to 10. One workstation per participant will be available in the trainingroom for the exercises.

1

8/13/2019 HARM.en Program

2/3

DIgSILENTPowerFactoryTraining

Harmonics Analysis

First Day

9:00 IntroductionWelcomeOverview about harmonics analysis and indicesPhase correct harmonic injectionsBalanced and unbalanced spectrums

Harmonic load flow calculation options

10:30 Coffee Break

11:00 Exercise: Assessment of Harmonic DistortionDefinition of harmonic sourcesHarmonic load flow calculation: assessment of harmonic emissionBar and distortion diagramsWaveform plotsBackground distortion

12:30 Lunch Break

15:30 Frequency SweepCalculation of self and mutual impedancesHandling of the frequency sweep tool inPowerFactoryIdentification of parallel and series resonance points

15:30 Exercise: Frequency SweepSelf and mutual impedancesInfluence of the line model

15:00 Coffee Break

13:30 Filter DesignOverview harmonic filtersTypical layout and design criteriaFilter reports

Exercise: Harmonics MitigationFilter sizing for grid connection complianceLayout and design parameters in PowerFactory

17:00 End of first day

2

8/13/2019 HARM.en Program

3/3

Second Day

9:00 Power Quality Assessment according to IEC 61000Harmonic load flow according to IEC 61000-3-6

Summation laws for harmonic emission co-ordinationAssessment of flicker emission level according to IEC 61400-21

10:30 Coffee Break

11:00 Exercise: Power Quality Assessment of a Wind FarmCalculation of voltage harmonic distortionFilter designAssessment of flicker emissionBackground distortion

12:30 Lunch Break

13:30 Frequency Dependent Parameters of Network ComponentsFrequency characteristics and scales (TriFreq)Cable/overhead line frequency dependent parameters

Exercise: Network ImpedanceDefinition of network harmonic impedances using frequency characteristicsAnalysis of parallel and series resonance pointsDiagrams

15:00 Coffee Break

15:30 Network Impedance LociVerification of power quality compliance under consideration of network impedance loci

17:00 End of seminar

3