Online Voltage Optimization of the Power Distribution System

The power distribution is facing increasing voltage control problems due to the increasing penetration of intermittent distributed energy sources. This study describes a method for voltage optimization of a power distribution system that faces this challenge. The study depends on the digital twin concept to create a continually updated optimizer that uses the current load measurements to provide optimum reactive power injection set points to the smart inverters operating on the active nodes. This method can be applied to control a distribution system in an unknown and dynamic environment. The results for a basic network show that system voltage can be significantly optimized by using the proposed method.