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SIMULATION OF SOLAR GENERATION WITH ADVANCED VOLT-VAR CONTROL

SIMULATION OF SOLAR GENERATION WITH ADVANCED VOLT-VAR CONTROL. Jeff SMITH Brian SEAL Wes SUNDERMAN Roger DUGAN EPRI - US. Problem Definition. High-penetration solar PV on a distribution system can result in objectionable fluctuations in feeder voltage Hypothesis

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SIMULATION OF SOLAR GENERATION WITH ADVANCED VOLT-VAR CONTROL

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  1. SIMULATION OF SOLAR GENERATION WITH ADVANCED VOLT-VAR CONTROL Jeff SMITH Brian SEAL Wes SUNDERMAN Roger DUGAN EPRI - US

  2. Problem Definition • High-penetration solar PV on a distribution system can result in objectionable fluctuations in feeder voltage • Hypothesis • It is possible to increase the hosting capacity of distribution systems without excessive voltage fluctuations if the appropriate control were to be built into PV inverters.

  3. Example Volt-Var Settings

  4. Circuit One-Line Diagram

  5. Baseline Voltage Profile Without PV

  6. Maximum Change in Voltage PV Only PV with Volt-Var Control

  7. 24-Hour Aggregate Feeder Load Profile PV Load

  8. Comparison of Daily Voltage Variations Voltages ~5km from the HV/MV substation

  9. Conclusions • Autonomous volt/var control can significantly increase the level of PV that is allowable on distribution circuits for which voltage constraints are the limiting factor • Still a few issues to consider • R&D work is continuing

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