Multi-criteria Optimization of Off-grid Renewable Energy Systems
Conference: Intelec 2013 - 35th International Telecommunications Energy Conference, SMART POWER AND EFFICIENCY
10/13/2013 - 10/17/2013 at Hamburg, Deutschland
Proceedings: Intelec 2013
Pages: 5Language: englishTyp: PDF
Personal VDE Members are entitled to a 10% discount on this title
Authors:
Xu, Daming; Kang, Longyun (South China University of Technology, Guangzhou, China)
Abstract:
In the design of off-grid hybrid wind/photovoltaic power systems, the optimal sizing is an important and challenging task. The sizing of off-grid hybrid wind/PV power systems can be taken as a multi-criteria optimization problem involving two conflicting objectives being maximization of power reliability and minimization of cost. The Loss of Power Supply Probability (LPSP), which is the index of power reliability, must obtained by simulation. The Pareto-optimal solutions are found using the elitist non-dominated sorting GA (NSGA-II), and this has been validated by solving the multi-criteria problem with the tangency method. The decision variables are the size of photovoltaic (PV) panels, the capacity of batteries, the type and size of wind turbine generators (WTGs) and the tilt angle of PV panels. The advantage of using NSGA-II is that it can find multiple optimized solutions in a single run.