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A partially time-delay-dependent out-of-sequence controller and its establishment method

A controller and time-delay technology, which is applied to a partial time-delay-dependent out-of-sequence controller and its establishment field, can solve the problem of packet loss, complex analysis and synthesis, and a time-delay-dependent out-of-sequence controller without a good design method And other issues

Inactive Publication Date: 2018-01-09
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the use of a shared communication network has great advantages such as low cost, reduced weight and power requirements, easy installation and maintenance, and high reliability, the introduction of the communication network makes the analysis and synthesis of the corresponding system very complicated, which also brings Comes with many interesting and challenging problems such as network latency, packet loss, quantization and out-of-sequencing
At present, there is no good design method for partial time-delay-dependent out-of-sequence controllers for time-delay systems, all these facts will promote and promote the completion of the patent of this invention

Method used

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  • A partially time-delay-dependent out-of-sequence controller and its establishment method
  • A partially time-delay-dependent out-of-sequence controller and its establishment method
  • A partially time-delay-dependent out-of-sequence controller and its establishment method

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Embodiment 1

[0075] Embodiment 1, the controller obtained by the first method (that is, the stabilized controller relying on the new operation mode). refer to figure 1 and image 3 The first method results in a controller Including system state x(k), controller gain and Delay d≥0; firstly, a partially time-delay-dependent controller should be established (see image 3 ), ie u(k)=α(k)K 1 x(k)+(1-α(k))K 2 x(k-d); the values ​​of the random variable α(k) are α(k)=1 and α(k)=0 respectively; and when α(k)=1, u(k)=K 1 x(k); when α(k)=0, u(k)=K 2 x(k-d); rewrite the partially time-delay dependent controller as Control gain is and mode of operation {η k , k∈Z} in the finite set S 1 = Value in {0, 1}; in the establishment process such as image 3 As shown, it is necessary to establish a controller with a disordered sequence between the system state and the control gain; introduce another random variable β(k) to describe the disordered situation between the system state and the co...

Embodiment 2

[0076] The embodiment of embodiment 2, the controller obtained by the second method (i.e. another kind of stabilization controller that only depends on one of the original operating modes) is basically the same as embodiment 1, the only difference is that embodiment 2 is implementing On the basis of Example 1, the second controller is obtained by applying the non-fragile control method, namely Including system state x(k), controller gain and Delay d≥0; control gain disturbance is and and satisfy q=1, 2, δ k (r k ) to be determined; when considering , can be constructed with η k related controller gain, and its mode of operation depends only on η k , based on this, we get the corresponding controller gain as

[0077]

[0078] Such as Figure 5 The controller shown can also make the closed-loop system stable by solving the appropriate control gain, and the above constitutes the second controller.

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Abstract

The present invention discloses a partial delay dependent disordering controller and an establishment method thereof. The partial delay dependent disordering controller includes a controller on the basis of a new operation mode (NOMs) and a controller on the basis of a non-fragile method. The controller on the basis of the new operation mode (NOMs) has an expression as follows: u(k)=K1-bar(r<k>)x(k)+K2-bar(r<k>)x(k-d), wherein, K1-bar(r<k>) is a controller grain, K2-bar(r<k>) is a system state, and the time delay d>=0. The controller on the basis of the non-fragile method has an expression as follows: u(k)=(K1-bar(r<k>)+DeltaK1-bar(r<k>))x(k)+(K2-bar(r<k>)+DeltaK2-bar(r<k>))x(k-d), wherein, K1-bar(r<k>) is a controller grain, x(k) is a system state, time delay d>=0, and DeltaK1-bar(r<k>) and DeltaK2-bar(r<k>) are controller grain disturbances.

Description

technical field [0001] The invention relates to a controller, in particular to a partially time-delay-dependent out-of-sequence controller and its establishment method. Background technique [0002] Time-delay problems exist in many real dynamical systems, chemical systems, such as heating systems, biological systems, network control systems (NCSs), telecommunications, and economics. As we all know, in these practical systems, the existence of time delay often degrades the performance of the system, and even leads to instability. By studying the stabilization results of various types of time-delay systems, it is found that the stabilization related to state feedback control is mainly obtained by controllers with no time-delay or only with time-delay. When designing stabilizing controllers for systems with time-delays without time-delays, an idealized assumption that the relevant system states should be available online is necessary. Instead, it is assumed that there is alw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/02
CPCG05B13/02
Inventor 王国良柳强李博宇
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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