The high-penetration of Distributed Energy Resources (DER) in low voltage distribution grids, mainly photovoltaics (PV), might lead to overvoltage the point common coupling, thus, limiting entrance renewable sources fulfill requirements from network operator. Volt-var is a control function for DER power converters that used enhance stability and reliability system. In this study, centralized al...

Smart inverters are studied in both the dynamic/transient and steady state in a simulation environment. Using EPRI OpenDSS, five real California feeders are simulated over a 95 day period while the PV penetration and smart inverter fraction are varied. From the simulations, it is shown that smart inverters operating under different Volt/VAr based control schemes improve feeder conditions. The i...

⎯ The integrated control of voltage and reactive power (volt/var) on radial distribution feeder is formulated as a multiobjective optimization problem to be solved trough the Strength Pareto Evolutionary Algorithm (SPEA2), a relatively recent technique of recognized computational efficiency. Two objectives has been established: voltage level variation and power and energy losses including costs...

The distributed Volt/Var control (VVC) methods have been widely studied for active distribution networks(ADNs), which is based on perfect model and real-time P2P communication. However, the always incomplete with significant parameter errors such communication system hard to maintain. In this article, we propose an online multi-agent reinforcement learning decentralized framework (OLDC) VVC. fr...

This paper aims to evaluate the effectiveness of four techniques applied inverter electric vehicles for mitigation undervoltage occurrences due charging in a low voltage network. The employed are: Volt-Var control, Volt-Watt controlled recharge strategy, and combination control. simulations were conducted real system located southern region Brazil, using OpenDSS MATLAB software. results show th...

In this paper, Artificial Neural Network, one of the Artificial Intelligence (AI) techniques, for the Volt / Var control in power distribution systems with dispersed generation (DG) is proposed. Artificial neural networks have been considered due to their ability for real time control, simpler calculations and adaptability to different operating conditions. Neuro-controllers are much more effec...

In this paper, Artificial Neural Network, one of the Artificial Intelligence (AI) techniques, for the Volt / Var control in power distribution systems with dispersed generation (DG) is proposed. Artificial neural networks have been considered due to their ability for real time control, simpler calculations and adaptability to different operating conditions. Neuro-controllers are much more effec...