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Underwater Investigations and Robotics. 2016. № 1 (21). P. 24-30. IMPROVING THE EFFICIENCY CONTACTLESS TRANSMISSION ELECTRICITY ON AUTONOMOUS UNDERWATER VEHICLE MODELS, ALGORITHMS AND SOFTWARE Gerasimov V.A., Filozhenko A.Y. Institute for Marine Technology Problems FEB RAS 5a Sukhanov Str., Vladivostok, 690091. Ph.: +7 (902) 522-38-24. Е-mail: [email protected] Kraskovskiy M.V., Kuvshinov G.E., Far Eastern Federal University Office, Bldg. 10, Ajax St., Vladivostok, 690922 Russky Island, Russia Ph.: +7 (950) 293-71-11. Е-mail: [email protected] ABSTRACT The structure of power supply system for autonomous underwater vehicle is analyzed. Topicality of the use of contactless electrical power transmission method is detailed. Specific character of this method is described. It is connected with the use of high-frequency transformer. Its primary and secondary windings are separated by non-magnetic clearance causing a low magnetic coupling ratio and significant magnetization current. The problems of inverter output current decrease and heat loss reduction in its transistor switches are investigated. Unloading method of power switches of autonomous voltage inverter due to the inclusion of a serial resonance circuit in parallel with the primary winding of the transformer is proposed. This solution promoted for three-fold lowering of the current of inverter power switches and saving the transmission capacity. The results of circuit simulation and experimental research of operating modes of the contactless power supply system of autonomous underwater vehicle are presented. A resonant circuit connected at the output of autonomous inverter was used. Good agreement simulation and experimental results is observed. The relationship analysis between power of the reactive elements in the resonant circuit and inverter and the relative resonant frequency determined by the ratio of own frequency of the resonant circuit to the frequency of commutation of inverter switches is conducted. The approach to the formation of compromise solution that allows determining the relative value of the resonant frequency and giving recommendations on selection of the serial resonance circuit capacitor is proposed. Keywords: contactless transmission electricity, autonomous voltage inverter, serial resonance circuit, high frequency transformer, reducing current of the inverter, reduction of heat loss transistors, increase efficiency, capacitor selection. REFERENCES 1. Illarionov G.Ju., Sidenko K.S., Bocharov L.Ju. Ugroza iz glubiny: XXI vek [Threat from depth: 21st century]. Khabarovsk, the Khabarovsk Regional Printing House Publ., 2011. 304 p. 2. Gerasimov V.A., Kuvshinov G.E., Filozhenko A.Ju., Chepurin P.I. The investigation of modes power system supply for autonomous unmanned underwater vehicle with a contactless power transmission. Podvodnye issledovaniya i robototekhnika - Underwater Investigations and Robotics, 2013, no. 2, pp. 24–32. 3. Gerasimov V.A., Filozhenko A.Ju., Chepurin P.I. Structure of the system noncontact energy issue of the autonomous undersea device. Izvestija JuFU. Tehnicheskie nauki - Izvestiya SFedU. Engineering sciences, 2013, no. 3/140, pp. 47–55. 4. Gerasimov V.A., Kopylov V.V., Kuvshinov G.E., Naumov L.A., Sebto Ju.G., Filozhenko A.Ju., Chepurin P.I. Mathematical modeling for contactless electric power transfer to underwater vehicle. Podvodnye issledovaniya i robototekhnika - Underwater Investigations and Robotics, 2012, no. 2, pp. 28–33. 5. Kolpakov A.I. Lamp J. Problemy proektirovanija IGBT-invertorov: perenaprjazhenija i snobbery. Components & technologies, 2008, no. 82, pp. 98–103. 6. Gerasimova G.N., Kuvshinov G.E., Naumov L.A., Usol'cev V.K. Topologicheskie metody analiza v jelektrotehnike i avtomatike: ucheb. posobie dlja vuzov [Topological methods of the analysis in the electrician and automatic equipment: studies. benefit for higher education institutions]. Vladivostok, Dal'nauka Publ, 2001. 232 p. 7. Jelektrotehnika. V 3-h knigah. Kniga I. Teorija jelektricheskih i magnitnyh cepej. Jelektricheskie izmerenija [Electrical equipment. In 3 books. Book I. Theory of electric and magnetic chains. Electric measurements]. Chelyabinsk, JuUrGU Publ., 2003. 505 p. 8. Meleshin V.I. Tranzistornaja preobrazovatel'naja tehnika [Transistor converting equipment]. Moscow, Tehnosfera Publ., 2006. 632 p. 9. Kuvshinov G.E., Naumov L.A., Sebto Ju.G., Gerasimov V.A., Filozhenko A.Ju., Chepurin P.I. Avtonomnyj invertor naprjazhenija dlja pitanija nagruzki cherez transformator s nizkim kojefficientom svjazi mezhdu ego obmotkami [The independent inverter of tension for food of loading via the transformer with low coefficient of communication between his windings]. Patent RF, no. 2558681, 2014. 10. Metallized Polypropylene Film Capacitors. IC-Contract Ltd. URL: http://www.iccontract.ru/images/pdf/TDK/MKP_B32656S.pdf (дата обращения 24.03.2016 г.)