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DISPERSED GENERATION INFLUENCE ON FAULT PASSAGE INDICATOR RESPONSE

DISPERSED GENERATION INFLUENCE ON FAULT PASSAGE INDICATOR RESPONSE. Context of research Performed studies presentation Simulation of Fault Passage Indicator (FPI) Application Network Results and discussion Conclusions. Context of research. Distribution network

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DISPERSED GENERATION INFLUENCE ON FAULT PASSAGE INDICATOR RESPONSE

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  1. DISPERSED GENERATION INFLUENCE ON FAULT PASSAGE INDICATOR RESPONSE • Context of research • Performed studies presentation • Simulation of Fault Passage Indicator (FPI) • Application Network • Results and discussion • Conclusions

  2. Context of research • Distribution network • Link between transport network and consumers • Development of Dispersed Generation (DG) • Fault detection and localisation • Importance in network management • Evolution due to DG insertion • Fault passage indicator (FPI)

  3. Performed studies presentation • Simulation of Fault Passage Indicator (FPI) • Principe of operation • Crossing of the thresholds (on amplitude or derivative (di/dt)) • FPI considered : directional and non directional Non directional detection Directional detection

  4. Performed studies presentation • Simulation of Fault Passage Indicator (FPI) • Algorithm Sleep No Fault passage Yes Indication & Start timer T Yes Line energized T > 8 sec No Yes No T > 3h

  5. Performed studies presentation Note: : LV Networks connected to MV network studied, : MV Customers. : Main source (bond towards HV). • Network application Urban network C0505 with the loads, the switchgear,the DG, the positions of FPI and fault considered

  6. Results and discussion • Example : Indication of FPI_ND1 with phase-to-earth fault in network without DG Fault localisation is correct

  7. Results and discussion • Example : Indication of FPI_ND1 with phase-to-earth fault in network with DG Fault localisation is uncorrect

  8. Results and discussion • Example : Indication of FPI_D1 and FPI_D0 with phase-to-earth fault in network with DG Fault localisation is correct

  9. Results and discussion • Remarks on the use of FPI Fault localisation Fault detection Type of FPI Directional Two phase Single phase Three phase Without DG With DG No Yes Yes Yes FPI_ND1 Yes No(1) FPI_D1 Yes Yes Yes Yes Yes Yes FPI_D0 Yes Yes(2) Yes No Yes Yes • In the case of huge DG • In the case of two-phase to earth fault

  10. Conclusions and Perspectives • Conclusions • Fault passage indicators (FPI) • Network application • Perspectives • Neutral point treatment influence on FPI behaviours • FPI and DG position influence on produced indications • Optimal position of FPI

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