الفهرس | Only 14 pages are availabe for public view |
Abstract With the world’s problems in terms of fuel, whether due to the high pressure on the demand for it or the decrease in the quantities of available resources in addition to the risk of environmental pollution from the combustion of those traditional sources of coal, petroleum, and others, so the whole world turned to renewable sources as an alternative to the traditional system, as well as in the new cities. In Egypt, the majority of production is for the studied electricity For coastal and desert places as a result of the expansion and going to remote places to wind and solar energy and other renewable sources, as well as recently, the integration of these sources has become a distinct thing to meet the needs of more loads, which was done in many types of research, as well as the logic, which proved its effectiveness, whether by merging two or more sources as well as in the presence of the electric network or self-reliance and the use of batteries for areas outside the electrical grid. The city of Ras Gharib is an encouraging place to set up a hybrid renewable energy project due to the weather’s capabilities in terms of the availability of wind and sunlight, its coastal location, and the availability of the Red Sea. In this research, the component system is a solar system to meet the needs of part of the whole load about 5.2 MW, and a doubly fed induction generator (DFIG) wind system is used to meet the capacity of about 7.3 MW, and the network shares about 1 MW. These shares were the best economic and technical ratios, according to the results of the Hybrid Optimization Model for Electric Renewable (HOMER) program used to choose the optimal values for each source to achieve the lowest cost which was $0.15/kW In addition to the environmental features and sensitivity as it is necessary to achieve the maximum benefit from the Maximum Power Point Tracking (MPPT) investigation for the hybrid project systems, the Incremental Conductance (IC) method was used with the DC-DC boost converter and thus the proposed system succeeds in feeding the loads after using the inverter to convert the direct current to alternating current, but the use of electronic switches, transformers, inverters, and others led to many distortions and errors, as well as an increase in harmonics and disturbances in both current and voltage signals, which affected the quality of the system. Therefore, the research tended to improve through the introduction of a flexible alternating current transmission system (FACTS). The Unified Power Flow Controller (UPFC) device consists of two parts, one of them shunt, which used to pump the voltage and adjust it in the conditions of disturbances and errors, and fade its increase or decrease, and the other series which compensating the reactive power while trying to balance it with the active power. With the connection between the two parts through DC-link for initial regulation. Thus, the device optimized and reached the target through the use of the fractional-order proportional-integral-derivative )FOPID( controller, which decides the values of the signals required to treat problems, whether swell, disturbance, or sag. Therefore, it was necessary to reach the optimal parameters values for that controller. One of the artificial means was relied upon, is the Atom Search Optimization (ASO) method. It set the five optimal parameters of the controlling system, which helped the FOPID to optimize the pumping of UPFC and control the use of its part, the shunt or the series. |