Local Volt-Var-Watt Control for Voltage Regulation in Distribution Networks

This paper proposes a local volt-var-watt control to efficiently regulate voltages while reducing grid power losses. We incorporate the impedance characteristic of the network in the control algorithm to modulate real and reactive power injections based on a local optimization problem. The gain coefficients of the local proportional controllers are designed such that convergence (asymptotic stability) is guaranteed. Numerical simulations with a realistic 8-node distribution feeder and real-world demand data show the effectiveness of the proposed controller compared to available alternatives in the literature.