Controlling of Solar Photovoltaic Inverters in Different Modes

The growing penetrate stage of photovoltaic (PV) power generation in low voltage (LV) networks result in voltage rise issues, mainly at the end of the feeders. In order to moderate this trouble, quite a few strategies, such as grid support, transformer tap change, demand-side administration, lively power reduction, and reactive power optimization methods, show their contribution to voltage hold, yet still incomplete. This paper proposes a corresponding volt-for control design between the LV sharing transformer and solar inverters to optimize the PV power penetration level in an agent LV network in Bornholm Island using a multi mode. The approach is to increase the reactive power donation of the inverters nearby to the transformer during overvoltage situation. From the simulation of the circuit, we achieved an improvement in the power constantly.