Possible power quality ancillary services in low voltage grids provided by the three-phase damping control strategy

摘要: The share of renewable energy is increasing because environmental concerns and favorable economic conditions. majority the distributed resources, connected to low-voltage grid, are inverter-connected units. These inverters controlled by using specially developed control strategies determine power injection between primary source grid. In past, connection resources was based on connect-and-forget principle, but this approach leads severe quality problems. Nowadays, more sophisticated need be developed, so that ancillary services can provided distribution system operator, which will allow further increase in grids. This article examines technical capabilities three-phase damping strategy provide operator. Besides strategy, also compares classical positive-sequence strategy. Active drooping reactive exchange combined with these effect annual production, quality, grid performance assessed. simulations conducted a Matlab/OpenDSS platform time series simulations.