| Title |
A New Velocity Measurement Method using Linear Type Hall-effect Sensor for Electro-mechanical Fin Actuator |
| Authors |
구정회(Gu, Jeong-Hoi) ; 송치영(Song, Chi-Young) |
| Keywords |
BLDC Motor ; Fin Actuation System ; Sliding Mode Control(SMC) ; Linear type Hall-effect Sensor ; Reduced Order Observer(ROO) |
| 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. |