Distributed Voltage Control Strategies in a LV Distribution Network

Abstract

As the amount of locally installed distributed

generation is increasing rapidly, voltage quality problems begin

to arise in the LV distribution network. Particularly the

introduction of large amounts of distributed generation may

cause an excessive voltage rise on a distribution feeder violating

the voltage limitations. PV installations specifically are found

to trip on days with high solar irradiance and low load. New

standards for the connection of locally installed generators to

the LV distribution grid will have to be developed in order to

enable the large scale implementation of distributed generation

in the LV distribution grid, and to avoid unwanted tripping of

the locally installed generation units.

In this paper, different voltage control mechanisms are

discussed and compared in terms of grid losses and profitability

of the installed generation for a typical Belgian distribution

network topology.