DutchPower bijeenkomst Datum: 30 mei 2023 Onderwerp: CIRED voorbereidingsdag Spreker(s): Sjef Cobben Titel: Session 2 - EMC en Power Quality

1. SPREKER:
Sjef Cobben
Sessie 2: EMC en Power Quality

2. De vier blokken van onderwerpen
• Block 1: EMC, earthing and safety
• Block 2: Equipment related power quality aspects
• Block 3: System related power quality aspects
• Block 4: Standards, measurements, regulation and advanced data analysis
20 minuten/4 = 5 minuten/blok 300 sec/100 = 3 papers per blok! (4,1,3,4)

3. Block 1: EMC, earthing and safety (30)
• Electromagnetic Fields 5
• Earthing Design and Management 11
• Earth Potential Rise and Touch Voltage Assessment 4
• Transient Voltages and Currents and Equipment Immunity 7
• Managing lightning strokes 3

4. STEADY-STATE ZERO-SEQUENCE CURRENTS IN A
TRANSMISSION SYSTEM: PARAMETER ANALYSIS (10640)

5. REALISTIC MAXIMUM TOUCH VOLTAGES IN GLOBAL
EARTHING SYSTEMS (10849 AT)

6. IMPACT OF PROTECTIVE MULTIPLE EARTHING
(PME) IN TN-C EARTHING SCHEMES IN PUBLIC LOW
VOLTAGE NETWORKS (10289 BE)

7. EVALUATION OF HIGH HARMONIC COMPONENTS IN
THE RESIDUAL EARTH FAULT CURRENT WITH
REGARDS TO THE EARTH POTENTIAL RISE AND
PERSONAL PROTECTION (10680 DE)

8. Block 2: Equipment related power quality aspects (24)
• Improvement/optimization/reduction techniques for devices
• Electric vehicles
• LED
• Power electronic based equipment
• Drives
• Generating units (solar, wind)
• Frequency converters, inverters
• Modelling of individual network elements
• Mitigation
• Stability (OVRT, grid forming inverters, frequency, inertia, RoCoF)
2 a 3 papers /topic

9. ADVANCED TECHNIQUES FOR TROUBLESHOOTING
SOLAR ARRAYS AND GENERATOR CONNECTIONS
(10181 UK)

10. Block 3: System-related power quality aspects (32)
• Low voltage DC grids
• Active customers (prosumers)
• AC microgrids
• E-mobility
• Harmonics and supraharmonics
• Frequency-dependent impedance and resonances
• Simulation-based studies
• Measurement-based studies *
• Harmonic limit allocation
• Other phenomena
• Unbalance
• Flicker
• Voltage dips *

11. A CASE STUDY ON FUTURE CHANGES IN SHORT CIRCUIT
POWER TO ANALYZE IMPACT ON VOLTAGE DIPS (10531)

12. TRANSFER OF SUPRAHARMONICS THROUGH A
MV/LV TRANSFORMER (10142)

13. THE BEAT PHENOMENON AND FLICKER CAUSED BY THE
DIFFERENCE IN SWITCHING FREQUENCY BETWEEN TWO
GRID-CONNECTED INVERTERS (10633 JP)

14. Block 4: Standards, measurements, regulations and
advanced data analysis (31)
• Standards and regulations (6)
• Measurement campaigns and monitoring systems (6)
• Measurement methods (7)
• Harmonic network impedance
• Voltage and current distortion from DC to 500 kHz
• Advanced data analysis (9)
• Reliability and Customer Costs (3)

15. Assessment of Harmonic Network Impedance based
on Transient Harmonic Signals measured at an
Industrial Power System (10622 BE)
Transformer inrushcurrent

16. NEW APPROACHES FOR QUANTIFYING POWER
QUALITY ISSUES (11334 SE)

17. APPLICABILITY OF IEC DERIVED VOLTAGE
UNBALANCE LIMITS IN THE US POWER SYSTEM: A
CASE STUDY (11286 US)
Unlike voltage harmonics which
are regulated through standards
such as IEEE 519, voltage
unbalance currently does not
have a dedicated standard in the
US.

18. POWER QUALITY BENCHMARKING (10367 HR)
According to the last report [1], 27 countries participated in the voltage quality survey
(Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Greece,
Ireland, Iceland, Italy, Latvia, Lithuania, Luxemburg, Malta, Hungary, Netherlands,
Norway, Germany, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden and Great
Britain), and Croatia is mentioned as one of the countries where the measurement of
electricity quality parameters is mandatory.

19. BEDANKT
VOOR UW
AANDACHT