2014 PV Distribution System Modeling Workshop: Advanced Inverters Analysis on a Distribution Feeder: Jeff Smith, EPRI

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2014 PV Distribution System Modeling Workshop: Advanced Inverters Analysis on a Distribution Feeder: Jeff Smith, EPRI

2014 PV Distribution System Modeling Workshop: Advanced Inverters Analysis on a Distribution Feeder: Jeff Smith, EPRI

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  • 1. Jeff Smith Manager, Power System Studies PV Distribution System Modeling Workshop 5/6/2014 Smart Inverters – Modeling to Determine “Best” Settings Prelude to tomorrow’s Workshop
  • 2. 2© 2014 Electric Power Research Institute, Inc. All rights reserved. What Smart Inverter Settings are “Best?” 0.9 0.95 1 1.05 1.1 -100 -50 0 50 100 Voltvar Curve-No Dead Band Voltage (pu) Availablevar(%)
  • 3. 3© 2014 Electric Power Research Institute, Inc. All rights reserved. 0.9 0.95 1 1.05 1.1 -100 -50 0 50 100 Voltvar Curve-with Dead Band Voltage (pu) Availablevar(%) What Smart Inverter Settings are “Best?”
  • 4. 4© 2014 Electric Power Research Institute, Inc. All rights reserved. 0.9 0.95 1 1.05 1.1 -100 -80 -60 -40 -20 0 Voltvar Curve-Inductive only Voltage (pu) Availablevar(%) What Smart Inverter Settings are “Best?”
  • 5. 5© 2014 Electric Power Research Institute, Inc. All rights reserved. 0.95 1 1.05 1.1 1.15 0 10 20 30 40 50 60 70 80 90 100 Voltwatt Curve Voltage (pu) Wattoutput(%) What Smart Inverter Settings are “Best?”
  • 6. 6© 2014 Electric Power Research Institute, Inc. All rights reserved. What Smart Inverter Settings are “Best?” 0 5 10 15 20 25 1.024 1.026 1.028 1.03 1.032 1.034 1.036 1.038 1.04 1.042 1.044 Hour Voltage(pu) Voltages with different voltvar settings ---- Voltvar ---- No PV ---- PV base Daily Feeder Voltage Profile with different volt/var setpoints