Incorporation of on-load tap changer transformers in low-voltage network planning

摘要: The introduction of distributed generation in the low-voltage (LV) network can generate bi-directional power flows and thus voltage increases instead decreases from consumers along feeder towards substation. new installed at consumer premises may induce problems while loading cables is still under nominal values. Conventionally possible resulting violations are solved by reinforcing network, however smart grid alternatives like control LV also alleviate problems. LV-networks traditionally designed with medium to low transformers equipped off-line tap changers. addition an on-load changer (OLTC) for decrease this needs be considered within optimisation method applied planning LV-network. In paper alternative installing OLTC has been performed. By assessing different strategies conditions increasing over many types networks, effectiveness becomes apparent. included optimization problem formulation additional constraints relaxing form a penalty function. When more efficient rather than conventional strengthening demonstrated case study on impacts generation.