CIGRE STUDY COMMITTEE C4 BRANDON PETERSON SOUTH AFRICAN MEMBER SC C4 7 AUGUST 2017

Transcription

1 CIGRE STUDY COMMITTEE C4 BRANDON PETERSON SOUTH AFRICAN MEMBER SC C4 7 AUGUST

2 WHERE SC C4 FITS IN A1 Rotating electrical machines A2 Transformers A3 High voltage equipment B1 Insulated cables B2 Overhead lines B3 Substations B4 HVDC and power electronics B5 Protection and automation C1 System development and economics C2 System operation and control C3 System environmental performance C4 System technical performance C5 Electricity markets and regulations C6 Distribution systems and dispersed generation D 1 Materials and emerging technologies CIGRE PARIS FEEDBACK 2014 D 2 Information systems and telecommunication 2

3 FIELDS OF ACTIVITY OF C4 Methods and tools for analysis related to power systems, dynamic and transient conditions The fields on which the activity is carried out are: Power Quality, Electromagnetic Compatibility/Electromagnetic Interference (EMC/EMI), Insulation coordination, Lightning, Advanced Tools for the analysis of power system performance, Power systems dynamic performance models and analysis. 3

4 SCOPE OF C4 CIGRE PARIS FEEDBACK 2016 CIGRE PARIS FEEDBACK

5 SUMMARY OF PRESENT FOCUS Power Quality: Benchmarking of PQ performance; Compatibility levels and Indices; Measuring and monitoring; Correlation between lightning and voltage dips; Emissions from disturbing installations (e.g. HVDC, SVC, arc furnaces); Immunity of installations. Electromagnetic Compatibility (EMC): EM vulnerability; EMC in vicinity of power systems; Requirements and solutions for HV substations and generating stations; Health effects related to low frequency EMF are excluded. Insulation co ordination: Critical review of existing practice; UHV systems; HVDC systems; Interaction between system and transformers, with reference to transformer energization studies; Resonance and ferroresonance; interaction between long AC cables and the system; influence of system conditions and characteristics on CBs operation, such as TRVs; Insulator pollution influence on the system performance. CIGRE PARIS FEEDBACK

6 SUMMARY OF PRESENT FOCUS Lightning: Critical review parameter statistics; Attachment process; Lightning performance of distribution and transmission lines with reference to the application of line arresters; Low Voltage lines protection; Protection of wind generators; lightning location systems data application. Advanced Tools for the analysis of power system performance: Numerical EM analysis for surge propagation studies; Numerical techniques for the computation from steady state to very fast front transients; modelling unsymmetrical conditions of power systems. Power systems dynamic performance models and analysis: Power balancing assessments; Influence of power converters and HVDC transmission on system security and AC network performances; Methods for modelling and aggregation of loads in active power networks; Performance issues related to the application of long HVAC cables; dynamic interaction between generation and transmission equipment. CIGRE PARIS FEEDBACK

7 MAIN ISSUES AT PRESENT Modeling the integration of renewable and nonconventional generators and storage systems on the power system. (HVDC, Long AC Cables, DC Storage) Generic reliable Wind and Wind Generator models Impact of renewables on Power Quality and the dynamics of the Power System Effects and modeling of Geomagnetic Inducted Currents Understanding the effects of Very Fast Transients CIGRE PARIS FEEDBACK

8 C4 work groups Type Number Convener WG Title Room No. Created Scheduled Disbanding WG C4.503 J. Mahseredjian WG C4.23 C. Engelbrecht JWG C4.24/CIRED F. Zavoda WG C4.25 H. Kuisti WG C4.26 J. He WG C4.27 D. Vujatovic WG C4.28 F. Deschamps Numerical techniques for the computation of power systems, from steady-state to switching transients GUIDE TO PROCEDURES FOR ESTIMATING THE LIGHTNING PERFORMANCE OF TRANSMISSION LINES Power Quality and EMC Issues associated with future electricity networks Issues related to ELF Electromagnetic Field exposure and transient contact currents Evaluation of Lightning Shielding Analysis Methods for EHV and UHV DC and AC Transmission-lines BENCHMARKING OF POWER QUALITY PERFORMANCE IN TRANSMISSION SYSTEMS Extrapolation of measured values of power frequency magnetic fields in the vicinity of power links JWG C4/C6.29 J. Smith Power Quality Aspects of Solar Power WG C4.30 W. H. Siew EMC in Wind Generation Systems JWG C4.31/CIRED D. Thomas EMC between communication circuits and power systems

9 C4 work groups Type Number Convener WG Title Room No. Created Scheduled Disbanding WG C4.32 W. Radasky WG C4.33 S. Visacro WG C4.34 U. D. Annakkage JWG C4/C6.35/CIRE D WG C4.36 M. Ishii K. Yamashita/H. Renner WG C4.37 Y. Baba Understanding of the geomagnetic storm environment for high voltage power grids Impact of Soil-Parameter Frequency Dependence on the Response of Grounding Electrodes and on the Lightning Performance of Electrical Systems Application of Phasor Measurement Units for monitoring power system dynamic performance Modelling and dynamic performance of inverter based generation in power system transmission and distribution studies Winter Lightning Parameters and Engineering Consequences for Wind Turbines Electromagnetic Computation Methods for Lightning Surge Studies with Emphasis on the FDTD Method JWG C4/B4.38 Z. Emin Network Modelling for Harmonic Studies WG C4.39 K. Tsuge Effectiveness of line surge arresters for lightning protection of overhead transmission lines JWG C4.40/CIRED M. Halpin Revisions to IEC Technical Reports , , , and JWG C4/B5.41 L. Haarla Challenges with series compensation application in power systems when overcompensating lines

10 C4 work groups Type Number Convener WG Title Room No. Created Scheduled Disbanding JWG C4.42/CIRED I. Papič WG C4.43 T. Shindo JWG A2/C4.52 B. Gustavsen Continuous assessment of low-order harmonic emissions from customer installations Lightning problems and lightning risk management for nuclear power plants High-frequency transformer and reactor models for network studies JWG A3/B5/C4.37 A. Janssen System conditions for and probability of Out-of-Phase JWG A1/C4.52 N. Miller JWG C2/C4.37 Y. Fang JWG B4/B1/C4.73 M. Saltzer Wind generators and frequency-active power control of power systems Recommendations for Systematic Framework Design of Power System Stability Control Surge and extended overvoltage testing of HVDC Cable Systems

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