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http://dx.doi.org/10.7236/JIIBC.2021.21.3.123

Variable Switching Duty Control of Switched Reluctance Motor using Low-Cost Analog Drive  

Yoon, Yongho (School of Electrical and Electronic Engineering, Gwangju University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.21, no.3, 2021 , pp. 123-128 More about this Journal
Abstract
For accurate speed and current control in industrial applications, SRM (Switched Reluctance Motor) is very important to synchronize the stator phase excitation and rotor position in the drive due to its nature. In general, position sensors such as encoder and resolver are used to generate rotational force by exciting the stator winding according to the rotor position and to control the motor by using speed and position information. However, for these sensors, 1) the cost of the sensors is quite large in terms of price, so the proportion of the motor system to the total system cost is high. 2) In terms of mechanical, position sensors such as encoders and resolvers are attached to the stator to increase the size and weight. In conclusion, in order to drive the SRM, control based on the rotor position information should be basically performed, and it is important to design the SRM driving system according to the environment in consideration of the application field. Therefore, in this paper, we intend to study the driving and control characteristics of SRM through variable switching duty control by designing a low-cost analog driving device, deviating from the general control system using the conventional encoder and resolver.
Keywords
Switched Reluctance Motor; Position Sensor; Rotor Position Information; Variable Switching Duty Control;
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