Formation of Characteristics of Operating Modes of Switched Reluctance Motors With Periodic Load

Abstract

Purpose. The purpose of the article is to create dependencies of efficiency on effective power when changing the supply voltage and switching angles, pulsation speeds of the rotor from the moment of inertia of the drive and mechanical characteristics of switched-reluctance motors with a periodic load, developing recommendations to ensure their effective and reliable operating modes in single-cylinder piston compressors. Methodology. To carry out research simulation mathematic modeling was used, to calculate the nonlinear inductance dependence on current and rotor angle, the finite element method. Results. The measures of improve the efficiency and reliability of drives single-cylinder piston compressors on the basis of the SRM has been proposed. Originality. Approaches that provide maximum efficiency values and a regulated level of ripple speeds of rotors SRM of single-cylinder reciprocating compressors in the operating frequency control range, with periodic load have been developed. Practical value. Algorithm for changing the supply voltage and switching angles of the SRM of single-cylinder compressors, which provides maximum efficiency values SRM when the rotational speed changes within the 1:6 range, has been developed. The minimum values of the moments of inertia of the drive of single-cylinder compressors, providing a regulated level of pulsations of the rotational speed of the rotor SRM with its regulation, were determined. References 10, figures 5.

Тестування Мікропроцесорних Терміналів Релейного Захисту В Розрахункових Режимах

“…а при роботі під навантаженням прийнята незалежною від швидкості, відповідно до рекомендацій для моделювання навантаження поршневих компресорів [15].…”

The Design and the Control Principle of a Direct Low-Speed PMSM Servo-Drive Operating under a Sign-Changing Load on the Shaft

“…The operation of a motor in a pump assembly or compressor unit is considered a default example of a cyclically variable load [7,17]. In such applications, the law of load change on the shaft is deterministic and can be derived as a function of the rotor position angle.…”

“…In such applications, the law of load change on the shaft is deterministic and can be derived as a function of the rotor position angle. The study in [17] emphasizes the relevance of energy-efficient control with the possibility of adjusting the rotational frequency in a wide range and the need to minimize velocity pulsations in the steady modes of such units.…”

Dynamic measurement of magnetic characteristics of switched reluctance motor

“…There is an increasing popularity of the adoption of the switched reluctance motor (SRM) in areas such as industrial and home applications in recent years [1][2][3][4][5][6][7][8]. SRM is also considered as a strong competitor in electric vehicles due to its simple structure, high efficiency and low cost [9,10].…”