Voltage Regulation in Distribution Grid Using PV Smart Inverters

The PV penetration in power grid has been growing rapidly during the last decade. While PV systems help provide clean and cheap energy to the customers, they also create technical issues in the distribution network. One of the most common problems is the voltage deviation from the acceptable range defined by the current standards. This paper proposes two control algorithms for voltage regulation through reactive power control of multiple PV smart inverters on a single feeder. A case study of a feeder on the University of Washington (UW) campus is conducted to demonstrate the algorithms feasibility.