Synthesis of energy-efficient agriculture electric drives control system

International Scientific Conference «AGRITECH-2019: Agribusiness, Environmental Engineering and Biotechnologies»

农业科学;生态环境科学;生物科学

Bukhanov, S.S.^1 ; Gryzlov, A.A.^1 ; Grigorev, M.A.^1

South Ural State University, Chelyabinsk, Russia^1

关键词: Current circuits;    Current control circuits;    Electromagnetic torques;    Energy efficient;    Positive current;    Rectangular shapes;    Synchronous reluctance;    Torque pulsation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/315/3/032036/pdf
DOI  :  10.1088/1755-1315/315/3/032036

来源: IOP

【 摘 要 】

In this paper the capabilities of the agriculture electric drive with rectangular shape of the phase current were analyzed, the level of pulsations of the electromagnetic torque in synchronous reluctance electric drives was found, the synthesis of the electric drive control system was considered, the characteristics of the electric drive under different control laws were compared. It is found that the use of high-speed current circuits (cutoff frequency = > 200 rad/s) can significantly suppress the level of pulsations of the electromagnetic torque. It is shown that the use of flexible positive current feedback in switching phase currents can be considered as an additional opportunity to improve the performance of the current control circuit, as well as in conjunction with the previous method for suppressing torque pulsations in both static and dynamic modes.