In this paper, dynamic response improvement of the grid connected hybrid system comprising of the wind power generation system (WPGS) and the photovoltaic (PV) are investigated under some critical circumstances. In order to maximize the output of solar arrays, a maximum power point tracking (MPPT) technique is presented. In this paper, an intelligent control technique using the artificial neural network (ANN) and the genetic algorithm (GA) are proposed to control the MPPT for a PV system under varying irradiation and temperature conditions. The ANN-GA control method is compared with the perturb and observe (P&O), the incremental conductance (IC) and the fuzzy logic methods. In other words, the data is optimized by GA and then, these optimum values are used in ANN. The results are indicated the ANN-GA is better and more reliable method in comparison with the conventional algorithms. The allocation of a pitch angle strategy based on the fuzzy logic controller (FLC) and comparison with conventional PI controller in high rated wind speed areas are carried out. Moreover, the pitch angle based on FLC with the wind speed and active power as the inputs can have faster response that lead to smoother power curves, improving the dynamic performance of the wind turbine and prevent the mechanical fatigues of the generator.

This article is a first endeavor into Polish defense policy matters by Polish Academy of Sciences’ Maritime Law.

Among the signatories of the United Nations Convention on the Law of the Sea (UNCLOS 1982) there are 9 states bordering the Baltic Sea. Presently the friendly relations between those nations render baltic naval operations less important than far seas operations. This is also true with the Polish Navy.The issue of delimitation of maritime borders and establishment of contiguous zone is of utmost importance to Polish national security. Since 1972 there are ongoing negotiations between Republic of Poland and the Kingdom of Denmark regarding contiguous zones. It is the longest running unresolved border dispute in the Baltic Sea area. There is also a degree of controversy surrounding roadstead of Świnoujście and Szczecin ports located in Bay of Pomerania.The article formulates five conclusions of both general and detailed nature regarding the UNCLOS significance for Poland’s national security.