BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Europe/Belgrade BEGIN:DAYLIGHT DTSTART:20220327T030000 TZOFFSETFROM:+0100 TZOFFSETTO:+0200 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZNAME:CEST END:DAYLIGHT BEGIN:STANDARD DTSTART:20221030T020000 TZOFFSETFROM:+0200 TZOFFSETTO:+0100 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:CET END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20221114T140403Z UID:8851686B-D001-40AE-9E95-88D8924F2314 DTSTART;TZID=Europe/Belgrade:20220428T130000 DTEND;TZID=Europe/Belgrade:20220428T140000 DESCRIPTION:The growth of the population on Earth\, the impact of climate c hange\, increasing industrial and communal pollution on the one hand and t he development of scientific and technological achievements in agriculture on the other hand\, determine the dynamic development of this sector. The growth of the world's population and\, consequently\, the increase in dem and for food and food products are in contradiction with the fact that due to climate change and its immediate consequences (drought and floods\, po llution of land\, water and air)\, arable agricultural land is constantly decreasing. In addition to this\, demographic trends are of such a charact er that the number of inhabitants in urban areas is growing significantly\ , while in rural areas the population is very small. These facts lead to a disproportion between the requirements and the possibilities of agricultu ral production. Agriculture is one of the key components of the economic d evelopment of the Republic of Serbia because\, in addition to economic\, i t also has a pronounced social and environmental significance. However\, a griculture in Serbia is still significantly carried out in the traditional way\, without the introduction of modern knowledge and agro-technical mea sures appropriate to developed and environmentally-conscious countries. Wh ere agro-technical measures are applied\, it is done in an irrational and economically unsustainable way. An example is the measure of crop irrigati on\, which is a key link in the production chain in the conditions of clim ate change. Although only about 2% of usable agricultural land is irrigate d in Serbia\, this agro-technical measure is carried out mostly with the u se of fossil fuel aggregates (petrol and diesel)\, which release harmful g ases that go into the atmosphere and intensify the greenhouse effects\, po lluting the ecosystem and thus causing significant economic losses.\n\nThi s lecture will present concrete realizations of a hybrid power supply syst ems mainly based on renewable energy sources (RES)\, primarily solar and w ind energy\, which were used for irrigation of vegetable crops and for sma rt management of agricultural land in several locations around Belgrade. B ased on the design experience of lecturer in the field of OFF-GRID systems design\, the lecture will present the specifics and methods of designing these power supply systems\, as well as control structures\, with emphasis on application in irrigation systems. All types of power conversion DC / DC\, DC / AC\, AC / DC take a special place in these systems and as such l argely determine the behavior of the entire OFF-GRID system. The lecture w ill present the latest topologies of converters used in these systems\, as well as some exploitation problems and technical aspects of practical imp lementation. Finally\, directions for further development of OFF-GRID syst ems for the improvement of agrotechnical irrigation measures will be given \, as well as directions for further development of power converter topolo gies applied in these systems.\n\nSpeaker(s): PhD.E.E Zeljko Despotovic\, \n\nRoom: 211\, Bldg: Main building\, Koste Glavinića 8A\, Belgrade\, Ser bia & Montenegro\, Serbia & Montenegro\, 11000 LOCATION:Room: 211\, Bldg: Main building\, Koste Glavinića 8A\, Belgrade\, Serbia & Montenegro\, Serbia & Montenegro\, 11000 ORGANIZER:janda@ieent.org SEQUENCE:5 SUMMARY:LECTURE: "OFF-GRID" POWER SUPPLY SYSTEMS AS INNOVATIVE SOLUTIONS FO R IMPROVING AGROTECHNICAL IRRIGATION MEASURES: TECHNICAL ASPECTS AND PRACT ICAL IMPLEMENTATIONS URL;VALUE=URI:https://events.vtools.ieee.org/m/311976 X-ALT-DESC:Description: <br /><p>The growth of the population on Earth\, th e impact of climate change\, increasing industrial and communal pollution on the one hand and the development of scientific and technological achiev ements in agriculture on the other hand\, determine the dynamic developmen t of this sector. The growth of the world's population and\, consequently\ , the increase in demand for food and food products are in contradiction w ith the fact that due to climate change and its immediate consequences (dr ought and floods\, pollution of land\, water and air)\, arable agricultura l land is constantly decreasing. In addition to this\, demographic trends are of such a character that the number of inhabitants in urban areas is g rowing significantly\, while in rural areas the population is very small. These facts lead to a disproportion between the requirements and the possi bilities of agricultural production. Agriculture is one of the key compone nts of the economic development of the Republic of Serbia because\, in add ition to economic\, it also has a pronounced social and environmental sign ificance. However\, agriculture in Serbia is still significantly carried o ut in the traditional way\, without the introduction of modern knowledge a nd agro-technical measures appropriate to developed and environmentally-co nscious countries. Where agro-technical measures are applied\, it is done in an irrational and economically unsustainable way. An example is the mea sure of crop irrigation\, which is a key link in the production chain in t he conditions of climate change. Although only about 2% of usable agricult ural land is irrigated in Serbia\, this agro-technical measure is carried out mostly with the use of fossil fuel aggregates (petrol and diesel)\, wh ich release harmful gases that go into the atmosphere and intensify the gr eenhouse effects\, polluting the ecosystem and thus causing significant ec onomic losses.</p>\n<p>This lecture will present concrete realizations of a hybrid power supply systems mainly based on renewable energy sources (RE S)\, primarily solar and wind energy\, which were used for irrigation of v egetable crops and for smart management of agricultural land in several lo cations around Belgrade. Based on the design experience of lecturer in the field of OFF-GRID systems design\, the lecture will present the specifics and methods of designing these power supply systems\, as well as control structures\, with emphasis on application in irrigation systems. All types of power conversion DC / DC\, DC / AC\, AC / DC take a special place in t hese systems and as such largely determine the behavior of the entire OFF- GRID system. The lecture will present the latest topologies of converters used in these systems\, as well as some exploitation problems and technica l aspects of practical implementation. Finally\, directions for further de velopment of OFF-GRID systems for the improvement of agrotechnical irrigat ion measures will be given\, as well as directions for further development of power converter topologies applied in these systems.</p> END:VEVENT END:VCALENDAR