Research of operating modes of conductors in power supply systems of cranes with induction feed, taking into account the influence of higher harmonics of the current

• Дата: 2021
• Автори: Andrienko, P. D., Nemykina, O. V., Andrienko, A. A., Mokhnach, R. E.
• Формат: Стаття
• Мова: English; Ukrainian
• Опубліковано: National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” 2021
• Теми: induction feed system; trolleys; feed bus; current distribution; power and voltage losses; система індукційного живлення; тролея; шина живлення; розподіл струму; втрати потужності та напруги
• Онлайн доступ: http://eie.khpi.edu.ua/article/view/242487
• Назва журналу: Electrical Engineering & Electromechanics

Purpose. Investigation of the influence of higher harmonics of current on current distribution, voltage and power losses in the supply systems of crane trolleys and development of a calculation method for practical use. Methodology. The analytical method and the results of the modeling method were used for research. Results. Analytical relationships have been obtained that make it possible to determine the current distribution, voltage and power losses in the systems of induction feeding of crane trolleys, taking into account the composition and amplitude of the higher harmonics of the current. Originality. For the first time, analytical dependences are obtained that take into account the effect of changing the trolley parameters on the frequency in the feed systems. Numerical values have been determined for the most commonly used induction feed systems for cranes. It is shown that with an increase in the cross-section of the feed bar there is a decrease in the main, and especially additional, losses. Practical value. Theoretical relationships have been obtained that can be used to calculate the optimization of induction feed systems in the presence of higher harmonic currents arising in power systems during operation of crane semiconductor controlled electric drives.