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Optimal distributed control method for network system with asymmetric information

A distributed control, network system technology, applied in the field of optimal distributed control, can solve problems such as affecting the control effect, the controller cannot control the real system well, and the noise is not considered.

Active Publication Date: 2020-05-08
SHANDONG UNIV OF SCI & TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] However, the previous research work did not consider the influence of noise. In real life, noise is ubiquitous. If the influence of noise is ignored, the designed controller will not be able to control the real system well, which will affect the control effect.

Method used

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  • Optimal distributed control method for network system with asymmetric information
  • Optimal distributed control method for network system with asymmetric information
  • Optimal distributed control method for network system with asymmetric information

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Experimental program
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Embodiment Construction

[0082] Optimal distributed control methods for networked systems with asymmetric information, including:

[0083] The mathematical model defining the network system with asymmetric information is shown in formulas (1)-(3),

[0084]

[0085]

[0086]

[0087] in, is a status signal, is the control signal of controller C1, is the control signal of the controller C2, with are the observed signals of sensor 1 and sensor 2, C, D 1 ,D 2 , F 1 , F 2 is a definite matrix with suitable dimensions, with is the system noise and observation noise, the mean is zero, and the covariance is Q θ , initial state r 0 The mean is μ, the variance is ∑, r 0 , θ k , with are Gaussian and independent of each other, the corresponding performance index is formula (4),

[0088]

[0089] Among them, Q, T 1 ,T 2 and P N+1 is a positive semi-definite matrix, E is the random process {θ k}, and the random variable r 0 take the expected value;

[0090] Controller...

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Abstract

The invention discloses an optimal distributed control method for a network system with asymmetric information, and relates to the field of network system control. The optimal distributed control method studies the optimal distributed control problem of the network system with asymmetric information, and comprises the steps of: firstly, utilizing asymmetric observation information to provide an optimal filter related to the two controllers; secondly, acquiring a solution based on a forward and reverse random difference equation by utilizing a Pontryagin maximum principle, and giving an optimalcontroller for minimizing a performance index based on the solution; and finally, separating an optimal filter from the optimal controller by utilizing a separation principle according to a special form of the optimal controller, and performing offline calculation on the optimal filter and the optimal controller.

Description

technical field [0001] The invention relates to the field of network system control, in particular to an optimal distributed control method for a network system with asymmetric information. Background technique [0002] A networked control system is a closed-loop control system composed of a communication network. In such a network system, control signals and observation signals can be interactively transmitted through system components. Compared with traditional point-to-point feedback control systems, networked control systems have many advantages, such as low energy consumption, low maintenance costs, and high flexibility. Network control system can be divided into two types of network: centralized network and distributed network. As the name implies, the centralized network has only one feedback closed-loop control loop, and all observation signals must be transmitted to a centralized controller, which will bring a large computational burden to the centralized controlle...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCG05B19/41845G05B2219/33273Y02P90/02
Inventor 梁笑张琦妍卢晓王海霞张桂林盛春阳张治国
Owner SHANDONG UNIV OF SCI & TECH
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