Naval Postgraduate School
Linear control system optimization using a model-based index of performance
linearcontrolsys00deme.pdf (2.911Mb)Abstract
This paper deals with a method of optimizing the free coefficients
in the characteristic equation of a linear feedback control
system. The optimization is carried out by minimizing an index
of performance associated with the system's response to a given
test disturbance.
The index of performance is the integral of a quadratic function
of the system state variables. The structure of the index
rests upon a logical interpretation of the regulator nature of the
control problem. The index for an tr— order system contains n
I'll
weighting factors whose values are determined from an n-~- order
model system. This determination is such that the optimization
of a completely free system will yield the model system. A system
with fewer than n degrees of freedom in the state variable
feedbacks may be optimized with respect to the free feedback coefficients,
yielding a system whose dynamic response to a given
disturbance is, for this optimization scheme, a best approximation
to that of the model.
Examples are presented for illustration of the salient features
of the method. It is also shown by example that systems with
closed- loop zeros may be optimized by this method.
The author wishes to thank Dr. Harold A. Titus for his guidance
in this investigation.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
Active Control of Adaptive Optics System in a Large Segmented Mirror Telescope
(2012);For a large Adaptive Optics (AO) system such as a large Segmented Mirror Telescope (SMT), it is often difficult, although not impossible, to directly apply common Multi-Input Multi-Output (MIMO) controller design methods ... -
Multicriteria Analysis of L1 Adaptive Flight Control System
(SAGE, 2013-04);This article presents an overview of the application of the Parameter Space Investigation method for the multicriteria design optimization of the ℒ1 adaptive flight control system implemented on the two turbine-powered ... -
Improving Sun Energy Harvesting, A Novel Approach for the Design and Optimization of Advanced High Efficiency Solar Cells, Part I [video]
(Naval Postgraduate School, Monterey, California, 2017-01-20);Photovoltaic Devices commonly known as Solar Cells, are the key components of any solar power systems. This presentation addresses our research efforts at NPS for the design, modeling and optimization of state-of-the-art ...
