NDLI: OCTSF for torque ripple minimisation in SRMs

Content Provider	IET Digital Library
Author	Sun, Qingguo Wu, Jianhua Gan, Chun Hu, Yihua Si, Jikai
Abstract	In this study, a new online compensation of torque sharing function (OCTSF) method is proposed to minimise the torque ripple in switched reluctance motors (SRMs). For SRMs, the torque ripple is a serious issue which is mainly produced by the overlapped conduction phases in the commutation region. In conventional TSF-based direct instantaneous torque control system, the incoming phase torque cannot achieve its reference torque perfectly and the outgoing phase torque also cannot drop down to its torque reference quickly in the commutation region. Hence, in order to minimise the torque ripple, the TSF of the outgoing phase is proposed to realise the positive compensation at the start of the commutation and the TSF of the incoming phase is used to achieve the negative compensation at the end of the commutation. Moreover, compared with the hard-chopping mode in conventional TSF strategies, the hard-chopping and soft-chopping modes are both employed in the proposed scheme to reduce the switching actions and switching loss. The simulation and experiments based on a 750 W three-phase 12/8 SRM are carried out to verify the effectiveness of the proposed OCTSF method.
Starting Page	2741
Ending Page	2750
Page Count	10
ISSN	17554535
Volume Number	9
e-ISSN	17554543
Issue Number	Issue 14, Nov (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/9/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2016.0270
Journal	IET Power Electronics
Publisher Date	2016-11-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Commutation Region Control of Electric Power System Hard-chopping Mode Machine Control Mechanical Variables Control Minimisation Negative Compensation OCTSF Function OCTSF Method Online Compensation of Torque Optimisation Technique Phase Torque Power 750 W Reluctance Motors Soft-chopping Mode SRM Switched Reluctance Motors Synchronous Machine Torque Control Torque Ripple Minimisation Torque Sharing Function Method TSF-based Direct Instantaneous Torque Control System
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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