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2 cired2013 power quality emc-emi-safety

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  • 1. Power QualityEMC/EMI/SafetyCIRED 2013
  • 2. PQkwaliteit vanelektriciteit KlantenNetbeheerderFabrikantenKwaliteit van spanning Kwaliteit van stroomImmuniteit EmissieDe betrokken partijen
  • 3. Power QualityKwaliteit van spanning en stroomRegulering ModelleringDatamanagementMeer metingen PQMMeer toepassingen• Beveiliging• Fraude• SpanningsregelingNetwerkmodellenModel Componentendatabase• Immuniteit• EmissieDipsTransiӫntenLimieten spanningMeetgemiddeldenNetcode
  • 4. Indeling papers PQ/EMCReguleringmonitoringInvloedDG / EV/.ProblemenoplossingenEMCAarding44 (2) 47 (1) 35 1536 papersover harmonische46 papers overspanningsveranderingen, dips
  • 5. Regulering en monitoring• Norm voor dips entransiënten• Uitbreiding PQM• Dips op OS• Meer LS- en MS-metingen• Meer info overspeciale projecten(EHS,HS, MS, LS)• Transparant
  • 6. Power Quality Regulation / monitoring (1)• 0349 Guidelines for good practice on voltagequality monitoring (NL)•Voltage quality monitoring programmes are important tools for voltage quality regulation•All possible applications should be kept in mind•Voltage quality monitoring programmes should be funded through the network tariffs•Results should be made available regularly•Diversification of indices and methods is to be avoided
  • 7. Power Quality Regulation / monitoring (2)• 0350 A EUROPEAN BENCHMARKING OFVOLTAGE QUALITY REGULATION (NL)CEER considers the following improvements necessary:• an effective extension to the high voltage networks (with effective limits andrequirements) and the consideration of extra high voltage networks;• the adoption of new limits for supply voltage variations in distribution networks(especially in low voltage networks);• the introduction of limits for voltage events, taking into account the differentcharacteristics of the European networks; for voltage dips and voltage swells one ormore responsibility-sharing curves should be defined;• a general framework for sharing the voltage quality responsibilities between networkcompanies, equipment manufacturers and users.
  • 8. Power Quality Regulation / monitoring (3)• 0141 VOLTAGE QUALITY PARAMETERS IN LVDISTRIBUTION GRIDS IN DEPENDENCE ON SHORTCIRCUIT IMPEDANCE
  • 9. Power Quality Regulation / monitoring (4)• 0324 POWER QUALITY OF SUPPLYCHARACTERIZATION IN THE PORTUGUESEELECTRICITY TRANSMISSION GRID
  • 10. Power Quality Regulation / monitoring (5)• 0759 ON-SITE POWER QUALITYMEASUREMENTS IN SLOVAK TRANSMISSION ANDDISTRIBUTION NETWORKS• Measured before andafter installed PV-systemREFERENCES[1] Gert Rietveld – VSL,the Nederlands, Project Protocol“Metrology for Smart Grids”October 2010
  • 11. Power Quality Regulation / monitoring (6)• 1501 POWER QUALITY AND METERINGMONITORING APPLICATIONS FOR SMARTNETWORK OPERATIONS
  • 12. Power Quality Regulation / monitoring (7)• 1- If the reactive power is reduced to zero, the power factor will be unity.• 2- The reactive power completes the power triangle, S =P +Q .• 3- The sum of all reactive powers in a node is zero.• 4- Reactive power can be positive or negative (sign specifies inductive or capacitive type).• 5- Reactive power can be reduced to zero by inserting inductive or capacitive components.• 6- The reactive power can be calculated from the time domain wave forms of voltage and current.• 1256 COMPARISON OF VARIOUS REACTIVEPOWER DEFINITIONS IN NON SINUSOIDAL NETWORKSWITH THE PRACTICAL DATA OF ELECTRICAL ARCFURNACEMETEN IS WETEN!
  • 13. Problemen en Oplossingen (1)• 0209 SPREAD OF HIGH FREQUENCYCURRENT EMISSIONVeel voorkomend onderwerpDiverse papers overHarmonische stromen metHoger frequentiebereik dan50th harmonische
  • 14. Problemen en Oplossingen (2)• 0256 IMPACTS OF RIPPLE CONTROLSIGNALS AT LOW VOLTAGE CUSTOMER’SINSTALLATIONS (NL)
  • 15. Problemen en Oplossingen (3)• 0425 FLICKER/VOLTAGE FLUCTUATIONRESPONSE OF MODERN LAMPS INCLUDINGTHOSE WITH DIMMABLE CAPABILITY AND OTHERLOW VOLTAGE SENSITIVE EQUIPMENTDimming in general willIncrease the flicker problem
  • 16. Problemen en Oplossingen (4)• 1480 HARMONIC PENETRATIONASSESSMENT IN RESIDENTIAL AREAS
  • 17. Problemen en Oplossingen (5)• 0066 TECHNICAL CONSIDERATIONS IN HARMONICMITIGATION TECHNIQUES APPLIED TO THEINDUSTRIAL ELECTRICAL POWER SYSTEMS07631128
  • 18. PQ related to DG, EV,… (1)• 1009 DIP BEHAVIOUR OF GRID CONNECTEDINVERTORS
  • 19. PQ related to DG, EV,… (2)• 1036 GRID IMPACT FROM PV-INSTALLATIONS IN NORTHERN SCANDINAVIA
  • 20. PQ related to DG, EV,… (3)• 1481 IMPACT OF PV AND LOADPENETRATION ON LV NETWORK VOLTAGES ANDUNBALANCE AND POTENTIAL SOLUTIONS
  • 21. PQ related to DG, EV,… (4)• 0143 MEASUREMENTS OF POWER QUALITY ANDVOLTAGE LEVEL EFFECTS ASSOCIATED WITH APHOTO VOLTAIC CLUSTER ON A DOMESTICHOUSING ESTATE.The study took place on low voltage (LV) feeder from the MV/LV substation in the north ofthe estate. The feeder comprises of a three phase main cable that is run radially out ofthe “North” substation to an underground link box that provides a normally open point(NOP).The feeder supplies 62 properties with a single phase connection and of theseconnections 49 include properties that each incorporate a 1.5 kW PV installation. Furthermeasurements were made at the NOP “Mid Point” and at the “South” substation feedingthe adjacent feeder at the NOP point.The exact phasing of the PV connections is unknown however from the results it can beinferred that the distribution between the three phases in uneven and is approximatelydistributed 40%:40%:20% across phases L1:L2:L3.No problems!
  • 22. EMC, EMI and Safety (1)• 1271 EMI OF EMISSIONS IN THE FREQUENCYRANGE 2 kHz - 150 kHzMore and more devices operating inthis frequency rangeRegulation not yet well defined1417 On-line 2-150 kHzgrid impedance meter
  • 23. EMC, EMI and Safety (2)• Metingen rondom (elektro)magnetische velden)• 0330 – 0537 – 1089• Afnemende aandacht voor dit onderwerp
  • 24. EMC, EMI and Safety (3)• 1511 USE OF FINITE PROBABALISTICMODELLING TO ESTABLISH EARTHING HAZARDLIMITSNieuwe methode om “veilige”foutspanningen te berekenen
  • 25. EMC, EMI and Safety (4)• 0035 VERIFICATION OF GLOBAL EARTHINGSYSTEMSCurrent distribution at thefault location and remainingfault voltage
  • 26. Samenvattend• Veel nieuwe ontwikkelingen op gebied van PQ-meten• Regulering op dit gebied begint meer inhoud te krijgen• Veel “bekende” problemen en oplossingen• Harmonische problemen over groter frequentiebereik• Relatie PV, Wind, EV, LED met PQ verdient meeraandacht• EMC, EMI, Safety raakt enigszins ondergesneeuwd