Voltage analysis of the distribution network with renewable resources using EMTP-ATP

Renewable sources are an integral part of the philosophy of today´s power systems. They provide, however, many pitfalls in the form of feedback affecting the operation of the electricity system. The paper describes the analysis of voltage conditions in the power system with a majority share of electricity produced by photovoltaic power plant. There are also described the criteria used to evaluate the connectivity of renewable sources, including their limits.