부산대학교 도서관

Introduction. This article's subject is a dual function energy system that improves the quality of the electric energy with help of an active power filter and uses a new technique of command named ZDPC (Zero Direct Power Command) on one hand, and on the other hand it injects the photovoltaic (PV) renewable energy to the electrical networks in the presence of non- linear charges. The novelty of the work consists in the subtraction of disturbances resulting from the non-linear charges is provided by an active power filter based on a new ZDPC method. Methods. This strategy combines a classic PI controller for DC bus voltage regulation with a smart method to maximum power point tracking (KIPPT) of power based on fuzzy logic. Purpose The elimination of the undesirable harmonics from the source currents makes the current almost sinusoidal with a harmonic distortion rate close to 1 %. The injection of PV energy into the electrical grid is provided by a PV panel in series with a chopper through a two-state inverter. Results. This system is simulated using MATLAB/Simulink software. The results prove the robustness and feasibility of the ZDPC control which simultaneously guarantees the compensation of harmonic currents, the correction of the power factor and the injection of the solar power into the electrical grid. References 16, table 3, figures 20. Key words: active power filter, zero direct power command, photovoltaic array, fuzzy logic maximum power point tracking controller.
UDC 621.314 Introduction. Harmonie pollution affects all domestic and industrial networks. No modern environment can escape this pollution from equipment, such as computers, servers, air conditioners, variable speed drives, etc [...]