Optimal operational management methods of voltage control with a high feed of renewable energy sources

Energy transition also takes place in the distribution grid. A large amount of distributed generation produces energy from renewable energy sources, such as wind or sun, which are attached at low-, medium-or high-voltage level. These voltage levels are not monitored and voltage violations, also caused by additional generators, cannot be captured. Furthermore, the volatile nature of regenerative energies can have negative impacts on grid parameters. In this publication, an algorithm for voltage control is presented to face the changes in the energy supply. The voltage will be stabilized and kept within the defined voltage range using the reactive or active power of the distributed generation. The algorithm has been verified with a designed grid model that contains a high proportion of renewable, distributed generation.