Algebraic characterization of fixed modes in decentralized control
نویسندگان
چکیده
Algebraic characterizations are presented for the existence of fixed modes of a linear closed-loop system with decentralized feedback control. The class of controllers for whch tixed modes are present is extended beyond that currently known.
منابع مشابه
Fixed zeros of decentralized control systems
This paper considers the notion of decentralized fixed zeros for linear, time-invariant, finite-dimensional systems. For an -channel plant that is free of unstable decentralized fixed modes, an unstable decentralized fixed zero of Channel (1 ) is defined as an element of the closed right half-plane, which remains as a blocking zero of that channel under the application of every set of 1 control...
متن کاملA simple criterion for structurally fixed modes
A property of linear systems is called structural if it can be deduced solely from the presence of zeroes at certain entries of the matrices of the system. aIn physical terms, the presence of zeroes in the matrices of the system indicates the absence of specified interconnections, and is therefore indicative of the structure of the system. Structural controllability has been studied for both si...
متن کاملAcceleration - Constrained Time - Optimal Control in n Dimensions
Proof: Theorem 4.1 follows directly from Theorem 3.1 and the Corollary 4.2: Given the system (19) with two-control agents, assume details of the proof are omitted. that (1) (All(s), Bl(s)) and (A2&), B2(s)) are both controllable; Then the system has no decentralized fixed modes. system described in differential operator form. Note that the conjecture in [7] is still correct for the interconnect...
متن کاملControl of continuous-time LTI systems by means of structurally constrained controllers
This paper deals with the characterization of the fixed modes of multi-channel systems with respect to linear time-invariant (LTI) structurally constrained controllers. Fixed modes can be found numerically for any LTI system with respect to any given control structure, using a random number generator. The existing analytical methods, however, are not capable of characterizing the fixed modes in...
متن کاملFixed Modes of Decentralized Systems with Arbitrary Information Structure
A seminal result in decentralized control is the development of fixed modes by Wang and Davison in 1973 that plant modes which cannot be moved with a static decentralized controller cannot be moved by a dynamic one either, and that the other modes which can be moved can be shifted to any chosen location with arbitrary precision. These results were developed for perfectly decentralized, or block...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Automatica
دوره 17 شماره
صفحات -
تاریخ انتشار 1981