Optimization and Control Strategies for Stochastic Power Quality of Distributed Generation

To solve power quality problems in distribution networks, this paper presents a distributed generation siting and capacity determination method. The methodology aims to minimize network losses, reduce the total harmonic distortion rate of voltage (THDV), and take into account load and power supply uncertainties. A probabilistic optimization solution algorithm that combines a traceless variation method and a traversal optimization algorithm is proposed, which greatly reduces the computational effort. Simulations are performed to validate it using an IEEE-69 node system. It is demonstrated that this proposed method improves the power quality by significantly reducing network losses.