A Robust Incremental Volt/VAR Control for Distribution Networks

This paper proposes an incremental Volt/VAR control for voltage regulation in distribution networks with high penetration of distributed energy resources. The Volt/VAR controller coefficients are obtained by solving a robust optimization problem, where reactive power is minimized. The proposed optimization problem is solved using a Successive Convex Approximation method. Communication requirements are minimal and restricted to the offline stage since the local controllers share the same gains. Numerical studies on a 42-node low voltage network demonstrate the improved performance of our local controllers against a traditional static Volt/VAR control strategy.