Optimal distributed control method for networked systems 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, not considering noise, and the controller not being able to control the real system well.

Active Publication Date: 2020-11-10
SHANDONG UNIV OF SCI & TECH
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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 networked systems with asymmetric information
  • Optimal distributed control method for networked systems with asymmetric information
  • Optimal distributed control method for networked systems with asymmetric information

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Embodiment Construction

[0083] Optimal distributed control methods for networked systems with asymmetric information, including:

[0084] The mathematical model defining the network system with asymmetric information is shown in formulas (1)-(3),

[0085]

[0086]

[0087]

[0088] in, is a status signal, is the controller of the control mechanism C1, is the controller of the control mechanism C2, and is the observation information of sensor 1 and sensor 2, C, D 1 ,D 2 , F 1 , F 2 be a definite matrix with suitable dimensions, " is the system noise";" and is observation noise", the mean is zero, and the covariance is Q θ , initial state r 0 is a Gaussian random variable whose statistical properties satisfy the mean value μ and variance Σ; r 0 , θ k , and All are Gaussian random variables, and the four variables are independent of each other; the corresponding performance index is formula (4),

[0089]

[0090] Among them, Q, T 1 ,T 2 and P N+1 is a positive...

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Abstract

The invention discloses an optimal distributed control method of a network system with asymmetric information, and relates to the control field of the network system. This method studies the optimal distributed control problem of network systems with asymmetric information. Firstly, the asymmetric observation information is used to give the optimal filter for the two controllers. Secondly, Pondriagin's maximum value principle is used. , the solution based on the forward and backward stochastic difference equation is obtained. Based on the solution, the optimal controller that minimizes the performance index is given. Finally, according to the special form of the optimal controller, the optimal filter and the optimal The optimal controller is separated and calculated offline.

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 information 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 information must be transmitted to a centralized controller, which will bring a large computational burden to the centralized c...

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Application Information

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Patent Type & Authority Patents(China)
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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