ATTITUDE CONTROL OF A RIGID SATELLITE WITH PULSE-WIDTH PULSE-FREQUENCY MODULATION USING OBSERVER-BASED MODIFIED PID CONTROLLER

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MOGHADASZADEH BAZAZ SARA; BOHLOURI VAHID; JALALI NAINI SEYED HAMID

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:8 Page(s): 0-0

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Title

ATTITUDE CONTROL OF A RIGID SATELLITE WITH PULSE-WIDTH PULSE-FREQUENCY MODULATION USING OBSERVER-BASED MODIFIED PID CONTROLLER

Author(s)

MOGHADASZADEH BAZAZ SARA | BOHLOURI VAHID | JALALI NAINI SEYED HAMID | Issue Writer Certificate

Keywords

SATELLITE ATTITUDE CONTROLQ2

PULSE-WIDTH PULSE-FREQUENCY MODULATORQ1

MODIFIED PID CONTROLLERQ1

OBSERVER-BASED APPROACHQ1

Abstract

In this paper, the performance of a single-axis attitude control with pulse-width pulse-frequency (PWPF) modulation is enhanced using a modified proportional-integral-derivative (PID) controller for arigid satellite with on-off thruster actuators. For this purpose, the well-known observer-based PIDapproach is utilized. The on-off thruster actuator is modeled with a constant delay followed by asecond-order binomial transfer function. The modulator update frequency is limited to 40 Hz as an inputto the on-off thruster actuators. In this study, the design criteria of pointing accuracy, overshoot of theattitude response, fuel consumption, and the number of thruster firings are considered for a step externaldisturbance (with different values). The parameters of the observer-based PID controller are tuned using parametric search method. Simulation results show that the fuel consumption and settling time of theobserver-based approach are considerably decreased with respect to those of PID controller with PWPFmodulator. Moreover, the overshoot of the OBSERVER-BASED APPROACH is omitted. Finally, the robustnessof the observer-based MODIFIED PID CONTROLLER is investigated in presence of uncertainties in satellitemoment of inertia and thrust level of on-off actuators.

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APA: Copy

MOGHADASZADEH BAZAZ, SARA, BOHLOURI, VAHID, & JALALI NAINI, SEYED HAMID. (2016). ATTITUDE CONTROL OF A RIGID SATELLITE WITH PULSE-WIDTH PULSE-FREQUENCY MODULATION USING OBSERVER-BASED MODIFIED PID CONTROLLER. MODARES MECHANICAL ENGINEERING, 16(8), 0-0. SID. https://sid.ir/paper/356221/en

Vancouver: Copy

MOGHADASZADEH BAZAZ SARA, BOHLOURI VAHID, JALALI NAINI SEYED HAMID. ATTITUDE CONTROL OF A RIGID SATELLITE WITH PULSE-WIDTH PULSE-FREQUENCY MODULATION USING OBSERVER-BASED MODIFIED PID CONTROLLER. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(8):0-0. Available from: https://sid.ir/paper/356221/en

IEEE: Copy

SARA MOGHADASZADEH BAZAZ, VAHID BOHLOURI, and SEYED HAMID JALALI NAINI, “ATTITUDE CONTROL OF A RIGID SATELLITE WITH PULSE-WIDTH PULSE-FREQUENCY MODULATION USING OBSERVER-BASED MODIFIED PID CONTROLLER,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 8, pp. 0–0, 2016, [Online]. Available: https://sid.ir/paper/356221/en

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