Pulse modulation for attitude control with thrusters subject to switching restrictions

Kienitz, Karl Heinz; Bals, Johann

doi:10.1016/j.ast.2005.06.006

Cited by 19 publications

(10 citation statements)

References 9 publications

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“…In two initial simulations, only rigid body dynamics of spacecraft is considered [3,31,36], and the third simulation deals with a more sophisticated flexible model [2]. A PIDtype controller with velocity feedback is utilized for pitch channel attitude controller.…”

Section: Simulation Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Tuning of Pulse-Width Pulse-Frequency Modulator using PSO: An Engineering Approach to Spacecraft Attitude Controller Design

Khosravi

Sarhadi²

2016

Automatika

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Section: Simulation Resultsmentioning

confidence: 99%

“…In this example, another spacecraft attitude model with I = 1000 kg.m 2 and A = 2 N.m is considered from [36]. For this system, costing weights ofw e = 10 and w u = 0.1 are used.…”

Section: Examplementioning

confidence: 99%

Tuning of Pulse-Width Pulse-Frequency Modulator using PSO: An Engineering Approach to Spacecraft Attitude Controller Design

Khosravi

Sarhadi²

2016

Automatika

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“…Pulse width pulse frequency (PWPF) modulator is a popular technique used in RCS nozzle control [36,37], which is designed by combining a first-order filter and a Schmitt trigger in the feedforward loop ( Figure 5) [5,38]. PWPF modulator is widely used in spacecraft control systems [6] because it works with an almost linear input/output relationship which makes the design easier.…”

Section: Suboptimal Online Controller Designmentioning

confidence: 99%

Reaction Control System Optimization for Maneuverable Reentry Vehicles Based on Particle Swarm Optimization

Gui

Sun

Chen

et al. 2020

Discrete Dynamics in Nature and Society

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This paper presents a new parametric optimization design to solve a class of reaction control system (RCS) problem with discrete switching state, flexible working time, and finite-energy control for maneuverable reentry vehicles. Based on basic particle swarm optimization (PSO) method, an exponentially decreasing inertia weight function is introduced to improve convergence performance of the PSO algorithm. Considering the PSO algorithm spends long calculation time, a suboptimal control and guidance scheme is developed for online practical design. By tuning the control parameters, we try to acquire efficacy as close as possible to that of the PSO-based solution which provides a reference. Finally, comparative simulations are conducted to verify the proposed optimization approach. The results indicate that the proposed optimization and control algorithm has good performance for such RCS of maneuverable reentry vehicles.

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“…There are various kinds of pulse modulators, such as pulse-width modulator, pulse-frequency modulator, pseudo-rate modulator, and pulse-width pulse-frequency (PWPF) modulator [14,15]. PWPF modulator is preferred for its operation has almost linear input/output relationship [16,17]. A PWPF modulator mainly comprises two components: a first-order lag filter and a Schmitt trigger inside a feedback loop, as shown in Figure 1.…”

Section: Pulse-width Pulse-frequency Modulatormentioning

confidence: 99%

Fractional Describing Function Analysis of PWPF Modulator

Wang

Zhu

et al. 2013

Mathematical Problems in Engineering

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Pulse-width pulse-frequency (PWPF) modulators are widely used in spacecraft thruster control. Their dynamic characteristic is still lack of effective analysis tools. This paper presents a fractional describing function method to describe the frequency characteristics of PWPF. A frequency-dependent gain and phase shift are clearly described by fractional-order expression, and the fractional-order behaviors depict the nonlinear properties of PWPF modulators. This fractional describing function method can also be applied to other kinds of modulators.

show abstract

Pulse modulation for attitude control with thrusters subject to switching restrictions

Cited by 19 publications

References 9 publications

Tuning of Pulse-Width Pulse-Frequency Modulator using PSO: An Engineering Approach to Spacecraft Attitude Controller Design

Tuning of Pulse-Width Pulse-Frequency Modulator using PSO: An Engineering Approach to Spacecraft Attitude Controller Design

Reaction Control System Optimization for Maneuverable Reentry Vehicles Based on Particle Swarm Optimization

Fractional Describing Function Analysis of PWPF Modulator

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