This paper proposes a singular perturbation approximation that preserves system passivity and an interconnection topology among subsystems. In the first half of this paper, we develop a singular perturbation approxima...
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ISBN:
(纸本)9781479901777
This paper proposes a singular perturbation approximation that preserves system passivity and an interconnection topology among subsystems. In the first half of this paper, we develop a singular perturbation approximation valid for stable linear systems. Using the relation between the singular perturbation and the reciprocal transformation, we derive a tractable expression of the error system in the Laplace domain, which provides a novel insight to regulate the approximating quality of reduced models. Then in the second half, we develop a structured singular perturbation approximation that focuses on a class of interconnected systems. This structured approximation provides a reduced model that not only possesses fine approximating quality, but also preserves the original interconnection topology and system passivity.
In this paper, we develop a dissipativity-preserving model reduction method based on a generalized singular perturbation approximation. This model reduction framework can deal with not only standard singular perturbat...
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ISBN:
(纸本)9781467357159
In this paper, we develop a dissipativity-preserving model reduction method based on a generalized singular perturbation approximation. This model reduction framework can deal with not only standard singular perturbation approximation but also projection-based model reduction as a special case. To develop such a model reduction method, we investigate a condition under which system dissipativity is appropriately preserved through the approximation. Moreover, deriving a novel factorization of the error system in the Laplace domain, we derive an a priori error bound in terms of the H_2-norm. The efficiency of the model reduction is shown through an example of interconnected second-order systems.
This paper describes a distributed control strategy for a hybrid electric vehicle, in order to reduce the fuel consumption, and to maintain a reasonable state of charge (SOC), at the end of the drive cycle. The vehicl...
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The goal of this paper was to develop a Simple Access Object Protocol (SOAP) Parlay X Web service interface that supports standard GSM modems and can be used as development and testing environment for SMS based applic...
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The paper deals with the design of the robust PID controller for real uncertain Coupled-Tank process in the frequency domain. Only the first independent tank is considered (single-input single-output system). In robus...
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The paper presents a simple interactive software tool for computer aided state space control design developed in Matlab-Simulink for education in Master degree study programs Applied Mechatronics, Cybernetics and Robo...
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The paper deals with new directions in research, development and applications of advanced control methods and structures based on the principles of optimality, robustness and intelligence. Present trends in the comple...
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Mathematical technicalities involved in the modern theory of nonlinear control systems often prevent a wider use of the impressive theoretical results in practice. Attempts to overlap this gap between theory and pract...
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The paper addresses problem of designing a robust output feedback model predictive control for uncertain linear systems over networks with packet-loss. The packet-loss process is arbitrary and bounded by the control h...
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ISBN:
(纸本)9783902823076
The paper addresses problem of designing a robust output feedback model predictive control for uncertain linear systems over networks with packet-loss. The packet-loss process is arbitrary and bounded by the control horizon of model predictive control. Networked predictive control systems with packet loss are modeled as switched linear systems. This enables us to apply the theory of switched systems to establish the stability condition. The stabilizing controller design is based on sufficient robust stability conditions formulated as a solution of bilinear matrix inequality. Finally, a benchmark numerical example-double integrator is given to illustrate the effectiveness of the proposed method. Copyright IFAC 2012.
In the case of a fault on electric power system line even basic frequency component of the fault current has rather complex form consisting of constant amplitude member and members with amplitudes attenuated with diff...
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ISBN:
(纸本)9781467307826
In the case of a fault on electric power system line even basic frequency component of the fault current has rather complex form consisting of constant amplitude member and members with amplitudes attenuated with different time constants. Taking into account that there is a possibility to eliminate DC and harmonic components in electric signals during a fault in acceptable short time period, it was shown here that the rest of the signal can be used for (fast) line impedance calculation with acceptable accuracy. Calculations and testing based on here presented approach with real generator parameters and for all kinds of faults show that error in resulting impedance value was always less then 3%, qualifying the method as acceptable for technical applications. Method of faulted line impedance calculation was referred.
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