Foreword

     The International Symposium on Power Electronics, with more than half a century of tradition, is coming back to Belgrade, but partly remaining in Novi Sad. It started way back in 1973, when Academician Petar Miljanic, Prof. Vladan Vučković, and their associates organized the first meeting. This long history shows that the power electronics community in Serbia is still active and has significant results, valuable worldwide. The first conference was held in the Serbian language as a national one, and 47 papers from all over ex-Yugoslavia were presented. It introduced the popular title abbreviation Ee (abbreviated from the Serbian name Energetska elektronika, which means Power Electronics). The following conferences were held biannually. In 1975, it was again in Belgrade with 50 papers, and then it started circulating all over the ex-Yugoslavia: Zagreb in 1978 with 94 papers, Sarajevo in 1981 with 95 papers, Ljubljana in 1984 with 104 papers, Subotica in 1986 with 126 papers, and Belgrade in 1988 with 109 papers.

     After a long break, due to unfortunate events in ex-Yugoslavia, Power Electronics revived and continued in 1995. As a result of the efforts of Prof. Vladimir Katić, it found its new permanent venue in Novi Sad. It started as a scientific symposium with an exhibition, so for the venue, the International Fair on Electronics and Informatics was chosen. The conference presented 79 papers, while the next symposiums in 1997 and in 1999 had 98 papers and 82 papers, respectively.

     Significant participation of foreign authors resulted in an upgrade of the symposium into an international one, which in 2001 gathered 107 papers, in 2003 101 papers, in 2005 94 papers, in 2007 101 papers, and in 2009 105 papers. In 2011, the symposium was included in the new wider-scope event „Energy Days” in the Master Conference Center of Novi Sad Fair and attracted 102 papers in 2011 and 69 papers in 2013. However, the industry participation at the exhibition weakened, so it was decided to move into academia. The next, 2015 symposium was held in the Central Building of the University of Novi Sad, where 71 papers were presented. The average number of participants was between 150 and 200, of which a significant portion were students and industry experts.

    The next milestone was laid in 2017 when the 19th International Symposium on Power Electronics Ee 2017 was organized in full compliance with the standards of the top World scientific conference and with IEEE technical cosponsorship. It was the first one technically co-sponsored by the IEEE Power Electronics Society (PELS) and IEEE Industrial Electronics Society (IES), the European Power Electronics (EPE) Association, and the European Centre for Power Electronics (ECPE), as well as by IEEE Serbia and Montenegro Section and the IEEE Joint Chapter PELS/IES/IAS of Serbia and Montenegro Section. This strong involvement of IEEE brought changes in the paper review and acceptance process, which were performed according to IEEE standards, so 75 papers and lectures by 248 authors from 29 countries were presented. All presented papers were included in the IEEE Xplore database and cited in Web of Science, Scopus, and Google Scholar. The 20th jubilee symposium continued with IEEE technical sponsorship and included the IEEE Industry Applications Society, as well. It gathered at Ee 2019 in Novi Sad 73 top-quality papers and lectures by 235 authors & co-authors from 23 countries. The famous pandemic virus COVID-19 in 2020 and the travel restrictions introduced at that time forced the Organizing Committee to organize the 21st International Symposium on Power Electronics Ee 2021 in virtual form (online). Still, 234 authors from 27 countries prepared in total of 81 papers and lectures.

    The year 2023 brought a big jubilee, the 50th anniversary or 50 years from the first conference. The 22nd International Symposium on Power Electronics (Ee 2023) was organized at two locations for the first time, in Belgrade at the Serbian Academy of Sciences and Arts (SASA) and in Novi Sad at the halls of the Science and Technology Park (STP). The main keynotes and central celebration of the jubilee were held in the Ceremonial Hall of the SASA in Belgrade. The scientific part and reestablished exhibition were held in the Halls and Atrium of the STP in Novi Sad. The symposium gathered 88 papers and lectures, of which 55 were included in the IEEE Xplore proceedings. They were prepared by 280 authors and co-authors from 24 countries.

    The 2025 symposium is organized in two cities, again, in Belgrade and Novi Sad. It is divided into three segments, each having its own venue and specific characteristics. The first, technical one, will be held in the halls of the Serbian Academy of Sciences and Arts (SASA), where five of the keynotes and most of the regular technical papers will be presented. The second day is focused on power electronics in modern smart grids and is oriented to industry applications. It will be held in the premises of the Chamber of Commerce and Industry of Serbia and in collaboration the CIRED Serbia. The main event is a panel, “Flexibility of Distribution Systems,” which will highlight the role of power electronics in modern distribution grids. It will contain five keynote lectures with discussion, followed by industry sponsor presentations, two more keynotes, and some regular technical papers. The third day will bring the symposium back to Novi Sad, and is focused on the future of power electronics. The panel session, led by Prof. Frede Blaabjerg, will discuss the Future trends in Power Electronics and EU project perspectives. Also, two more invited lectures will present the remaining papers. The day and the conference will end with a technical visit to the general sponsor Typhoon HIL premises.

    A special event of this conference will be a historical exhibition, “125 Years of Power Electronics in the World.” It will be devoted to the continuous development of power electronics technology and pay tribute to the role and contributions of some distinguished international and national scientists. It is prepared by Academician Prof. Slobodan Vukosavic and Prof. Vladimir Katic, with the help of associates Prof. Zoltan Čorba, curator Bojana Božić, and curator Jasmina Kovačević. It will be open from September 22, 2025, until October 11, 2025, in the Gallery of Science and Technology of the SASA, Belgrade.

    The 23rd International Symposium on Power Electronics (Ee 2025) gathered in total of 81 papers and lectures, out of which 55 technical papers, 14 keynotes and invited lectures, 2 panel introductory, 2 industry presentations, 3 tutorials, 4 papers in the National symposium, and 1 exhibition booklet from 228 authors coming from 24 countries. All technical papers have passed through a double-blind reviewing process by the International Program Committee and technical adjustment by the Secretariat. Of 71 submitted for the international symposium, 55 full papers (77.5%) have been accepted and will be presented in technical sessions. Additionally, six keynote and invited lecture sessions, two panels, one industry session, and three tutorials will be organized.

    I would like to acknowledge the great work of the symposium co-chairs Prof. Dushan Boroyevic, from Virginia Tech, USA, Academician Prof. Slobodan Vukosavic, from SASA/University of Belgrade, Serbia, and Dr. Zarko Janda, from Electrical Engineering Institute Nikola Tesla, Serbia, the symposium Technical Chairs Prof. Miroslav Vasic, from the Universidad Politecnica de Madrid, Spain, Prof. Aleksandar Prodic, from Universioty of Toronto, Canada, Prof. Ke Ma from Shanghai Jiao Tong University, Shanghai, China, and Prof. Yongheng Yang, from Zhejiang University, Hangzhou, China who gathered a large team of power electronics experts as topic chairs and reviewers, invited famous key-note speakers and high expert presenters and organized the tutorials, which resulted in high quality of the symposium program. Also, the Publication Chair, Prof. Aleksandar Stanisavljevic, and Prof. Zoltan Čorba, the Treasurer, managed to go through a complex procedure of preparing post-conference proceedings for the IEEE Xplore and various financial matters. Their work is highly appreciated.

    The presented contributions show the latest research results, new technologies, and trends, as well as achievements of the industry. It is the Symposium to evaluate the significance of these contributions. The authors themselves are responsible for the accuracy of the results, statements, and conclusions.

    As parallel events, the XXIII National Conference “Energetska elektronika” (in the Serbian language) and the annual assembly of the Serbian Power Electronics Society will be held.

 

                                                                                                                           Prof. Dr. Vladimir Katić

                                                                                                                           Ee 2025 Chairman &
                                                                                                                           President of the Serbian Power Electronics Society

   


PREDGOVOR

     Međunarodni simpozijum o energetskoj elektronici, sa tradicijom dugom više od pola veka, vraća se u Beograd, ali delimično ostaje u Novom Sadu. Počeo je davne 1973. godine, kada su akademik Petar Miljanić, prof. Vladan Vučković i njihovi saradnici organizovali prvi skup. Ova duga istorija pokazuje da je zajednica energetske elektronike u Srbiji i dalje aktivna i da ima značajne rezultate, vredne širom sveta. Prva konferencija je održana na srpskom jeziku kao nacionalna, a predstavljeno je 47 radova iz cele bivše Jugoslavije. Uvedena je popularna skraćenica naziva Ee (skraćenica od srpskog naziva Energetska elektronika). Naredne konferencije su održavane dva puta godišnje. Godine 1975, ponovo je bila u Beogradu sa 50 radova, a zatim je počela da cirkuliše širom bivše Jugoslavije: Zagreb 1978. sa 94 rada, Sarajevo 1981. sa 95 radova, Ljubljana 1984. sa 104 rada, Subotica 1986. sa 126 radova i Beograd 1988. sa 109 radova

    Nakon duge pauze, usled nesrećnih događaja u bivšoj Jugoslaviji, Energetska elektronika je oživela i nastavila sa radom 1995. godine. Zahvaljujući naporima prof. Vladimira Katića, pronašla je svoje novo stalno mesto održavanja u Novom Sadu. Počela je kao naučni simpozijum sa izložbom, pa je za mesto održavanja izabran Međunarodni sajam elektronike i informatike. Na konferenciji je predstavljeno 79 radova, dok su naredni simpozijumi 1997. i 1999. godine imali 98, odnosno 82 rada.

    Značajno učešće stranih autora rezultiralo je unapređenjem simpozijuma u međunarodni, koji je 2001. godine okupio 107 radova, 2003. godine 101 rad, 2005. godine 94 rada, 2007. godine 101 rad, a 2009. godine 105 radova. 2011. godine simpozijum je uključen u novi, širi događaj „Energetski dani“ u Master konferencijskom centru Novosadskog sajma i privukao je 102 rada 2011. godine i 69 radova 2013. godine. Međutim, učešće industrije na izložbi je oslabilo, pa je odlučeno da se premesti u akademsku zajednicu. Sledeći simpozijum 2015. godine održan je u Centralnoj zgradi Univerziteta u Novom Sadu, gde je predstavljen 71 rad. Prosečan broj učesnika bio je između 150 i 200, od kojih je značajan deo bio student i stručnjaci iz industrije.

    Sledeća prekretnica postavljena je 2017. godine kada je 19. Međunarodni simpozijum o energetskoj elektronici Ee 2017 organizovan u potpunosti u skladu sa standardima vrhunske svetske naučne konferencije i uz tehničko kosponzorstvo IEEE-a. Bio je to prvi tehnički kosponzorisan od strane IEEE Društva za energetsku elektroniku (PELS) i IEEE Društva za industrijsku elektroniku (IES), Evropskog udruženja za energetsku elektroniku (EPE) i Evropskog centra za energetsku elektroniku (ECPE), kao i od strane IEEE Sekcije Srbija i Crna Gora i IEEE Zajedničkog ogranka PELS/IES/IAS Sekcije Srbija i Crna Gora. Ovo snažno učešće IEEE-a donelo je promene u procesu recenziranja i prihvatanja radova, koji su sprovedeni prema IEEE standardima, tako da je predstavljeno 75 radova i predavanja od 248 autora iz 29 zemalja. Svi predstavljeni radovi su uključeni u IEEE Xplore bazu podataka i citirani u Web of Science, Scopus i Google Scholar. 20. jubilarni simpozijum nastavljen je uz tehničko sponzorstvo IEEE-a i uključio je i IEEE Društvo za industrijske primene. Na EE 2019 u Novom Sadu okupilo se 73 vrhunska rada i predavanja 235 autora i koautora iz 23 zemlje. Čuvena pandemija virusa COVID-19 2020. godine i ograničenja putovanja uvedena u to vreme primorali su Organizacioni odbor da 21. Međunarodni simpozijum o energetskoj elektronici EE 2021 organizuje u virtuelnom obliku (onlajn). Ipak, 234 autora iz 27 zemalja pripremilo je ukupno 81 rad i predavanje.

    Godina 2023. donela je veliki jubilej, 50. godišnjicu ili 50 godina od prve konferencije. 22. Međunarodni simpozijum o energetskoj elektronici (EE 2023) je prvi put organizovan na dve lokacije, u Beogradu u Srpskoj akademiji nauka i umetnosti (SANU) i u Novom Sadu u salama Naučno-tehnološkog parka (NTP). Glavni uvodni govori i centralna proslava jubileja održani su u Svečanoj sali SANU u Beogradu. Naučni deo i obnovljena izložba održani su u salama i atrijumu NTP-a u Novom Sadu. Simpozijum je okupio 88 radova i predavanja, od kojih je 55 uvršteno u zbornik radova IEEE Xplore. Pripremilo ih je 280 autora i koautora iz 24 zemlje.

    Simpozijum 2025. godine organizuje se u dva grada, ponovo u Beogradu i Novom Sadu. Podeljen je u tri segmenta, svaki sa svojim mestom održavanja i specifičnim karakteristikama. Prvi, tehnički, održaće se u salama Srpske akademije nauka i umetnosti (SANU), gde će biti predstavljeno pet uvodnih predavanja i većina redovnih tehničkih radova. Drugi dan je fokusiran na energetsku elektroniku u modernim pametnim mrežama i orijentisan je na industrijske primene. Održaće se u prostorijama Privredne komore Srbije i u saradnji sa CIRED Srbija. Glavni događaj je panel „Fleksibilnost distributivnih sistema“, koji će istaći ulogu energetske elektronike u modernim distributivnim mrežama. Sadržaće pet uvodnih predavanja uz diskusije, nakon čega slede prezentacije sponzora iz industrije, još dva uvodna predavanja i nekoliko redovnih tehničkih radova. Trećeg dana, simpozijum će se vratiti u Novi Sad i fokusiran je na budućnost energetske elektronike. Panel sesija, koju će voditi prof. Frede Blabjerg, nazvan je „Budući trendovi u energetskoj elektronici i perspektive EU projekata“. Takođe, preostali radovi biće predstavljeni na još dva pozvana predavanja. Dan i konferencija završiće se tehničkom posetom prostorijama generalnog sponzora Typhoon HIL-a.

    Poseban događaj ove konferencije biće istorijska izložba „125 godina energetske elektronike u svetu“. Biće posvećena kontinuiranom razvoju tehnologije energetske elektronike i odaće počast ulozi i doprinosima nekih istaknutih međunarodnih i domaćih naučnika. Izložbu su pripremili akademik prof. Slobodan Vukosavić i prof. Vladimir Katić, uz pomoć saradnika prof. Zoltana Čorbe, kustosa Bojane Božić i kustosa Jasmine Kovačević. Biće otvorena od 22. septembra 2025. do 11. oktobra 2025. godine u Galeriji nauke i tehnike SANU u Beogradu.

    XXIII Međunarodni simpozijum o energetskoj elektronici (Ee 2025) okupio je ukupno 81 rad i predavanje, od čega 55 tehničkih radova, 14 glavnih i pozivnih predavanja, 2 uvodna panela, 2 industrijske prezentacije, 3 tutorijala, 4 rada na nacionalnom simpozijumu i 1 izložbena brošura od 228 autora iz 24 zemlje. Svi tehnički radovi su prošli proces dvostrukog slepog recenziranja od strane Međunarodnog programskog odbora i tehničko prilagođavanje od strane Sekretarijata. Od 71 prijavljenog za međunarodni simpozijum, 55 kompletnih radova (77,5%) je prihvaćeno i biće predstavljeno u tehničkim sesijama. Pored toga, biće organizovano šest glavnih i pozivnih predavanja, dva panela, jedna industrijska sesija i tri tutorijala.

    Želeo bih da se zahvalim na odličnom radu kopredsednika simpozijuma, prof. Dušana Borojevića sa Virdžinija Tek univerziteta, SAD, akademika prof. Slobodana Vukosavića sa SANU/Univerziteta u Beogradu, Srbija, i dr Žarka Jande sa Elektrotehničkog instituta Nikola Tesla, Srbija, tehničkih predsednika simpozijuma prof. Miroslava Vasića sa Univerziteta Politehnika u Madridu, Španija, prof. Aleksandra Prodića sa Univerziteta u Torontu, Kanada, prof. Ke Ma sa Šangajskog univerziteta Đao Tong, Šangaj, Kina, i prof. Jongheng Janga sa Univerziteta Džeđang, Handžou, Kina, koji su okupili veliki tim stručnjaka za energetsku elektroniku kao predsedavajuće na temama i recenzente, pozvali poznate govornike i vrhunske prezentere i organizovali tutorijale, što je rezultiralo visokim kvalitetom programa simpozijuma. Takođe, predsednik za publikacije, prof. Aleksandar Stanisavljević, i prof. Zoltan Čorba, blagajnik, uspeli su da prođu kroz složenu proceduru pripreme postkonferencijskog zbornika radova za IEEE Xplore i raznih finansijskih pitanja. Njihov rad je veoma cenjen.

    Predstavljeni prilozi prikazuju najnovije rezultate istraživanja, nove tehnologije i trendove, kao i dostignuća industrije. Simpozijum je tu da proceni značaj ovih priloga. Autori su sami odgovorni za tačnost rezultata, izjava i zaključaka.

    Kao paralelni događaji, održaće se XXIII Nacionalna konferencija „Energetička elektronika“ (na srpskom jeziku) i godišnja skupština Srpskog društva za energetsku elektroniku.

 

 

                                                                                                                           Prof. Dr. Vladimir Katić

                                                                                                                           Predsednik Organizacionog odbora Ee 2025 i
                                                                                                                           Predsednik Društva za Energetsku elektroniku Srbije