Voltage Control in PV-Rich LV Networks Without Remote Monitoring

Abstract

The adoption of on-load tap changer (OLTC)-fitted transformers in low-voltage (LV) networks can be a potential solution to counteract voltage rise caused by high penetrations of residential photovoltaic (PV) systems. However, to control voltages in an efficient and flexible way, observability of remote points is required. This study proposes a generic and practical remote voltage estimation method for the end points of LV feeders to substitute the need of remote monitoring without compromising performance and, hence, avoid the corresponding investment. This scheme identifies first the number of customers per phase to then produce a generic feeder. The latter is used to estimate remote voltag..