Torque ripple minimisation of switched reluctance motor using sense coils

被引：4

作者：

Reddy, Battu Prakash ^{[1
,2
]}

Vemula, Janaki Ramaiah ^{[2
]}

Keerthipati, Sivakumar ^{[2
]}

机构：

[1] Microchip India Pvt Ltd, FPGA Solut, 13th Floor,Kapil Towers, Hyderabad, India

[2] Indian Inst Technol Hyderabad, Dept Elect Engn, Sangareddy, India

来源：

IET ELECTRIC POWER APPLICATIONS | 2020年 / 14卷 / 04期

关键词：

torque control; coils; reluctance motors; field programmable gate arrays; magnetic flux; machine control; angular velocity control; torque ripple minimisation; switched reluctance motor; sense coils; SRM; conventional motors; high-speed performance; associated acoustic noise; vibrations; low power applications; medium power applications; sense coil system; instantaneous inductance; saturation effects; measured inductance; inductance measurement; reduced torque ripple; SoC FPGA; speed control; REDUCTION; DESIGN; SYSTEM;

D O I：

10.1049/iet-epa.2019.0787

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Switched reluctance motor (SRM) offers several advantages compared to conventional motors such as low cost, rugged design and good high-speed performance. Torque ripple and the associated acoustic noise and vibrations have been a challenge for its application in low and medium power applications. The torque ripple is due to double salient structure and non-linear magnetic characteristics of the machine. This study presents a sense coil system to measure instantaneous inductance that represents the non-linearity and saturation effects. The current profile is generated from the measured inductance to minimise the torque ripple and reduce the copper losses. The speed of motor is derived from the measured inductance thereby eliminating need for an external sensor. The effect of temperature and asymmetries in machine construction are compensated due to the dynamic nature of inductance measurement. The proposed method is implemented on a SoC FPGA to control the speed of SRM with reduced torque ripple.

引用

页码：614 / 621

页数：8

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