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Scientific and Technical Journal
ELECTROTECHNIC AND COMPUTER SYSTEMS
ISSN Print 2221-3937
ISSN Online 2221-3805
Automated electromechanical systems
Electric machines and semiconductor converters
General Electrical Engineering
Power Saving by means of the Modern Electrical Engineering
Information Science and Computer Technics
Artificial Intellect Systems
Computer Systems, Networks and their Components
Information systems and technologies
Protection of an information in computer systems
Automation of control processes
Design, Control and Diagnostics
Metrology, Standardization and Certification
Simulation of dynamic systems
Innovation in the educational process
Innovations in Education, Science and Industry
Project and Program Control
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STUDY OF THE EFFICIENCY OF THE ELECTIC VEHICLE DRIVES WITH INDEPENDENT POWER SUPPLY WITH SUPERCAPACITORS IMPLEMENTING DC-DC CONVERTER
The electric vehicle drive with an independent power supply with supercapacitor battery and dc-dc converter is the object of this study. Electric vehicles nowadays become more and more popular, com-peting with the internal combustion engine vehicles. However, the electric vehicle drives have some consid-erable drawbacks. Even though the efficiency of the electric motor is significantly greater than the one ofinternal combustion engines, other elements of the drive such as power supply produce heat losses as well.Reducing these losses will lead to decreasing of energy consumption of electric vehicles and therefore willhelp them to become more competitive on the vehicle market. The Li-Ion accumulators, which are used asthe power supply, have large impedance that leads to significant energy losses on this element. The solutionof this problem can be found by connecting a supercapacitor battery in-parallel to the accumulator, whichwill help reducing these losses. It is important, though, to know the exact magnitude of the battery capaci-tance needed for the drive due to the expensiveness and big weight of supercapacitors. In order to find thisoptimal capacitance for a specific electric vehicle – electric scooter – a Matlab Simulink model of the elec-tric drive was created in this study. The modeling has shown that there is indeed the specific magnitude ofthe capacitance, using which the least possible energy consumption is achieved. Moreover it is possible toreduce the losses even more by implementing in the circuit a supercapacitor recharging system, created,modeled, and described in this work. This system does not require any additional power components in theelectric drive scheme and therefore does not increase the cost and energy consumption of the whole drive. Itwas calculated in this study that with usage of both the correct supercapacitor and the recharging system theenergy consumption of the electric scooter working on the urban drive cycle can be decreased by 5.23%.
Ostroverhov Nikolaj Y.
( email@example.com )
( firstname.lastname@example.org )
electric scooter, induction motor, Li-Ion accumulator, supercapacitor, dc-dc converter
1.Shidlovskyi, A., Pavlov, V., Popov, A.(2008), Supercapacitor usage in independent accumulator electric vehicles [Primenenie superkondensatorov v avtonomnom akkumulyatornom elektrotransporte]. Technical electrodynamics, 4, p.43–47.
2.Sanfeng Liu, Jun Peng, Liran Li, XiaohuiGong, Honghai Lu (2016), A MPC based energy management strategy for battery-supercapacitor combined energy storage system of HEV. 35th Chinese Control Conference, p. 8727–8731.
3. Pitorac, C. (2016), Using Li-Ion accumulators as traction batteries in the automotive industry. Cost reduction using ultra-capacitors. International Conference on Development and Application Systems, p. 212–218.
4.Ostroverkhov, M., Reutskyy, M., Trinchuk,D.(2016), Study of operation modes of nonlinearelectric circuit with independent power supply invehicles by example of an electric scooter[Doslidzhennia robochyh rezhymiv neliniynohoelektrychnoho kola z avtonomnym dzherelomzhyvlennia v transportnyh zesobah na prykladipryvoda elektroskutera]. Problems of energy andresource saving in electrical systems. Science,education, and practice, 1, p. 75–77.
5.Zhi Yang, Fei Shang, Ian P. Brown, MaheshKrishnamurthy (2015), Comparative Study of Interior Permanent Magnet, Induction and Switched reluctance Motor Drives for EV and HEV Applications. IEEE Transactions on Transportation Electrification, 1, p. 245–254.
6.Victor Isaac Herrera, Haizea Gaztañaga,Aitor Milo, Andoni Saez-de-Ibarra, Ion Etxeberria-Otadui, Txomin Nieva. (2016), Optimal Energy Management and Sizing of a Battery-Supercapacitor-Based Light Rail Vehicle With a Multiobjective Approach. IEEE Transactions on Industry Applications, 52 (4), p. 3367–3377.
7.Ostroverkhov, M., Trinchuk, D (2018),Study into Energy Efficiency of the Drive of Electric Vehicles with an Independent Power Supply De-pending on the Configuration of the Power Source. Technology Audit and Production Reserves, 4(1), p.45–50.
№ 29(105), 2018
7 July 2019
26 Feb 2019
About the transition of the Journal "ELECTRICAL AND COMPUTER SYSTEMS" to the OJS platform.
27 July 2018
15 May 2017
Про науково-технічну конференцію «Електротехнічні та комп’ютерні системи: теорія і практика»
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