A full-coefficient adaptive control method based on first-order characteristic model

A technology of adaptive control and characteristic model, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of large dynamic changes, loss of parameter tracking and adaptive ability, etc.
CN104570734BActive Publication Date: 2016-01-27BEIJING INST OF CONTROL ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF CONTROL ENG
Publication Date
2016-01-27

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Abstract

The invention discloses an all-coefficient adaptive control method based on a one-order characteristic model. The all-coefficient adaptive control method comprises the following steps: calculating a primary parameter estimation vector theta1(k) of a current cycle according to the formula which is as shown in the description; calculating an estimated parameter vector theta(k) according to the primary parameter estimation vector theta1(k) of the current cycle and an estimated parameter vector theta(k-1) of a previous cycle; carrying out feedback control according to estimated parameters alpha(k) and beta0(k) of the current cycle to obtain a control vector u(k) of the current cycle. The all-coefficient adaptive control method based on the one-order characteristic model is few in parameter, simple in algorithm, large and easily definable in parameter range, high in tracking speed of dynamic gain calculated by parameter estimation values and high in adaption capability.
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Description

technical field

[0001] The invention relates to the field of intelligent and adaptive control, in particular to a full-coefficient adaptive control method based on a first-order characteristic model. Background technique

[0002] The existing full-coefficient adaptive control methods based on the characteristic model are all based on the characteristic model greater than or equal to the second order, such as 1998, "Acta Astronautics" (Vol.19, No.1, Jan., 1998, p8-12) Published "Manned Spacecraft Full Coefficient Adaptive Reentry Lift Control", in which a full coefficient adaptive control method based on impact point prediction using a second-order characteristic model was proposed. The second-order characteristic model requires upper and lower bounds for each model parameter, and upper and lower bounds for the sum of model parameters to ensure the stability of the closed-loop system. For the characteristic model greater than or equal to the second order, the upper and lower...

Claims

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