Complimentary Force Allocation Control for a Dual-Mover Linear Switched Reluctance Machine

• Main Authors: J. F. Pan, Weiyu Wang, Bo Zhang, Eric Cheng, Jianping Yuan, Li Qiu, Xiaoyu Wu
• Format: Article
• Language: English
• Published: MDPI AG 2017-12-01
• Series: Energies
• Subjects: coordination control; force allocation control; linear switched reluctance machine (LSRM)
• Online Access: https://www.mdpi.com/1996-1073/11/1/23

This paper inspects the complementary force allocation control schemes for an integrated, dual-mover linear switched reluctance machine (LSRM). The performance of the total force is realized by the coordination of the two movers. First, the structure and characteristics of the LSRM are investigated. Then, a complimentary force allocation control scheme for the two movers is proposed. Next, three force allocation methods—constant proportion, constant proportion with a saturation interval and error compensation, and the variable proportion allocation strategies—are proposed and analyzed, respectively. Experimental results demonstrate that the complimentary force interaction between the two movers can effectively reduce the total amount of force ripples from each method. The results under the variable proportion method also show that dynamic error values falling into 0.044 mm and −0.04 mm under the unit ramp force reference can be achieved. With the sinusoidal force reference with an amplitude of 60 N and a frequency of 0.5 Hz, a dynamic force control precision of 0.062 N and 0.091 N can also be obtained.