  The integration of a high share of solar photovoltaics (PV) in distribution
networks requires advanced voltage control technologies or network
augmentation, both associated with significant investment costs. An alternative
is to prevent new customers from installing solar PV systems, but this is
against the common goal of increasing renewable energy generation. This paper
demonstrates that solar PV curtailment in low voltage areas can be reduced and
fairly distributed among PV owners by centrally coordinating the operation of
PV inverters. The optimal inverter active and reactive power operation points
are computed by solving a multi-objective optimization problem with a fairness
objective. The main results show that fair optimal inverter dispatch (FOID)
results in less power curtailment than passive voltage regulation based on
Volt/VAr droop control, especially at high solar PV to load ratios. The
effectiveness of the model is demonstrated on a residential low voltage
network.
