ADAPTIVE PROTECTION OF DISTRIBUTION SYSTEMS WITH DISTRIBUTED ENERGY RESOURCES CONSIDERING CONSUMER AND GENERATION PROFILES
Distributed Energy Resources (DER) penetration conducts a significant impact on the distribution protection system. Distribution feeder current during normal loading and shortcircuit conditions are affected by DER load flow operating state, DER short-circuits contribution, consumers load, and feed...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/39650 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Distributed Energy Resources (DER) penetration conducts a significant impact on the
distribution protection system. Distribution feeder current during normal loading and shortcircuit conditions are affected by DER load flow operating state, DER short-circuits
contribution, consumers load, and feeder topology at switching points. Therefore, protection
devices along distribution feeder as well as feeder upstream observe different current during
short-circuit and load flow condition based on DER's contribution. The more integration of
DER's leads to more challenge for protection engineers who are responsible for maintaining
their protection system sensitive, selective, with fast response, and optimum reliability. This
thesis uses the IEEE 34 Node Test Feeder and extends it by addition of photovoltaic, wind and
energy storage DERs. Consumer loads and DER's generation were extended from static values
to typical load and generation profiles. Protection device settings were calculated selectively
in the absence of DERs. Using the method of Protection Security Assessment (PSA),
automatically evaluate the correct operation of protection devices in case of different fault
scenarios. Three-phase and single-phase metallic faults are applied to validate protection
system security. Accordingly, DERs generation profiles and consumer profiles were
considered. Daily, Weekly and seasonal patterns were examined. DER contribution and
influence on protection device selectivity were reassessed by the PSA method. Accordingly,
adaptive rules were developed to fix identified miss-coordinations by modifying protection
settings or feeder automation logic. This thesis focuses on identifying proper adaptive rules
and assumes that proposed settings and logics will be implemented through an Advanced
Distribution Management System (ADMS) and protection maintenance staff. |
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