Transportation Systems and TechnologyTransportation Systems and Technology2413-9203Eco-Vector7200310.17816/transsyst202172119-129Research ArticleCalculation, design and manufacture of heteropolar magnetic levitation and linear drive systems of maglev transportAntonovYuri F.<p>Doctor of Technical Sciences</p>yuri-anto@yandex.ruhttps://orcid.org/0000-0002-6910-1622Petersburg State Transport University of Emperor Alexander I01072021721191292206202122062021Copyright © 2021, Antonov Y.F.2021<p><strong>Background:</strong> The methods of calculation and elements of the technology for creating heteropolar magnetic systems of levitation, lateral stabilization and a rotor-runner of a traction linear synchronous motor for the development of the transport technology "Russian Maglev" in order to achieve an increased levitation gap of 0.2 m, reduce the threshold speed of the exit vehicle in levitation mode up to 10 km/h.</p>
<p><strong>Aim:</strong> to develop methods for calculating and designing heteropolar poles from elementary permanent magnets, coils of the same type based on composite low-temperature superconductors and high-temperature tape superconductors of the second generation and a step-by-step technology for their production.</p>
<p><strong>Tasks:</strong></p>
<ol>
<li>Creation of an on-board magnetic system of levitation and lateral stabilization, allowing to provide a levitation gap of 0.2 m, a threshold value of vehicle speed of 10 km/h when transition to levitation mode, to reduce stray magnetic fields to the level of the natural field of terrestrial magnetism of 50 T;</li>
<li>Creation of a rotor-runner of a linear synchronous motor with an ironless stator with a power of 10 MW.</li>
</ol>
<p><strong>Methods:</strong> outlines the main calculation methodologies: "analysis" and "synthesis". The "analysis" methodology is adopted in solving the "direct" calculation problem, when the configuration of the magnetic system is set and the magnetic field in the working area is calculated, and, if necessary, the stray magnetic fields. This methodology can be effectively applied if there is experience in creating magnetic systems. Otherwise, the "synthesis" methodology is applied, which is used in solving the "inverse" calculation problem, in which the picture of the distribution of the magnetic field in the working zone is set and the configuration of the magnetic system is found (synthesized).</p>
<p><strong>Results of the study performed:</strong></p>
<ol>
<li>The parameters and characteristics of high-energy permanent magnets made of rare-earth metals, low-temperature and high-temperature superconducting winding materials have been analyzed, the choice of permanent magnets and superconducting winding material has been made;</li>
<li>Calculations of the magnetic system of permanent magnets in the "Halbach assembly" and in the traditional assembly in a toothed ferromagnetic core have been carried out;</li>
<li>Calculations of a track coil with a rectangular cross-section of the winding are performed;</li>
<li>Methods for calculating and optimizing superconducting magnetic systems from a set of similar track modules have been developed;</li>
</ol>
<p><strong>Conclusions:</strong> The results of the performed fundamental research will allow starting the calculation, design and construction of conveyor-main passenger and freight lines of maglev transport, as well as urban public transport.</p>levitation unitlinear motorpermanent magnetsuperconductortrack moduleузел левитациилинейный двигательпостоянный магнитсверхпроводниктрековый модуль[1. Kim KK, Panychev AY, Blazhko LS, Rybin PK. Properties of a Synchronous Machine with Self-Regulating Magnetic Suspension of the Rotor when Its Axis Is Skewed. Russian Electrical Engineering. 2020;91(10):597-603 doi: 10.3103/S1068371220100053][2. Сан-Жам Д., Сарма Г., Томас Е. Сверхпроводимость второго рода / под ред. А.А. Абрикосова. – М.: Мир, 1970. 364 с. [Saint-James D, Sarma G, Thomas EJ. Type II Superconductivity. Moscow: Mir; 1970. 364 p. (In Russ.)].][3. Kazuo Sawada. Technological Development of the Superconducting Magnetically Levitated Train. Japanese railway engineering. 2008;(160):2-5.]