Maximum efficiency control of six- and three-phase two-motor drives

The Journal of Engineering

Hamidreza Pairo¹  Abbas Shoulaie¹  Mohammad Hosein Khanzade² 

[1]Department of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran

[2]Department of Information and Communication Technology, Comprehensive Imam Hosein University, Tehran, Iran

关键词: reference currents;    load torques;    six-phase two-motor drives maximum efficiency control;    three-phase two motor drive maximum efficiency control;    loss minimisation equations;    copper loss increment;    efficiency improvement;   

DOI  :  10.1049/joe.2017.0262

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

In this study, a method for loss minimisation of six- and three-phase two-motor drive systems is presented. In two-motor drive systems (or multiphase multi-motor drive systems), currents of one motor pass through the other motor(s), which lead to increment of copper loss. In the proposed method for loss minimisation of six- and three-phase two-motor drive systems, extra copper loss of the six-phase motor, caused by reference currents of three-phase motor, is considered in loss-minimisation equations of three-phase motor; therefore the total controllable loss (including copper and iron losses) of whole system will be minimised in a unified form. In this paper, amount of efficiency improvement of proposed method for a system of two six- and three-phase motors in different speeds and load torques are compared with a conventional method of nominal flux. Also experimental results verify performance of the proposed method.

【 授权许可】

CC BY