Impact and Practical Limits of PV Penetration on Distribution Feeders
The work in this project would help utilities answer questions such as: how much PV is too much, or what can be done to accommodate more PV (e.g. voltage regulation improvements)? To answer these questions, simulations will be run on real distribution feeders with increasing levels of PV generation, and various steady-state and dynamic voltage conditions will be checked. In order to establish a set of general conclusions and practical guidelines, the simulations will study the sensitivity of maximum allowed PV with respect to:
- Location of PV plants within the feeder (e.g. clustered near a substation, at the end of a feeder or near a voltage regulation device),
- Feeder type based on load served (residential, commercial, industrial) and customer density (rural, urban),
- Geographical location of feeder (e.g. coastal vs. inland, flat plains vs. mountainous) and
- Voltage regulation devices on the feeder (e.g. capacitor banks, load tap changers).
The result would be a comprehensive report that describes the modeling process, prescribes rules-of-thumb for PV penetration level, and develops design specifications for an screening/analysis tool that could be developed in a follow-on phase.