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http://dx.doi.org/10.5370/KIEE.2010.59.1.070

A New Velocity Measurement Method using Linear Type Hall-effect Sensor for Electro-mechanical Fin Actuator  

Gu, Jeong-Hoi (국방과학연구소)
Song, Chi-Young (국방과학연구소)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.59, no.1, 2010 , pp. 70-75 More about this Journal
Abstract
The objective of this paper is to propose a new velocity measurement method for an electro-mechanical fin actuator. The model of the electro-mechanical fin actuator includes uncertainties such as unknown disturbances and parameter variations in flight condition. So, an electro-mechanical fin actuator system needs robust control algorithm which requires not only position information but also velocity information. Usually, analog tachometers have been used for velocity feedback in an electro-mechanical fin actuator. However, using these types of sensors have problems such as the cost, space, and malfunction. These problems lead to propose a new velocity measurement method using linear type Hall-effect sensor. In order to verify the proposed method, several experiments are performed using Model Following Sliding Mode Controller(MFSMC). It is shown that the MFSMC with a new velocity measurement method using linear type Hall-effect sensor can satisfy the requirements without using of velocity sensor.
Keywords
BLDC Motor; Fin Actuation System; Sliding Mode Control(SMC); Linear type Hall-effect Sensor; Reduced Order Observer(ROO);
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