Optimised control of embedded solar sources in the distribution network

This paper analyses solar and load data for a typical western Sydney region and the impacts and benefits of embedded solar on the local distribution grid, and proposes a simple real and reactive power control routine of solar sources to avoid excess radial distributor voltage rise and feeder current and losses. The benefits of local storage are also discussed. This paper´s conclusions are that significant amounts of solar generation can be accommodated on the proviso that the real and reactive powers of embedded sources are independently and fully controllable to avoid voltage rise and losses. In deep solar inflow situations some spilling of real power may be required. Local storage even as low as several hours will be of benefit.