Estimation and compensation finite time control method of communication delay of power network

A limited time, power network technology, applied in general control systems, adaptive control, control/regulation systems, etc., can solve problems such as inability to compensate for communication delays, lack of system dynamic performance analysis results, etc.

Active Publication Date: 2019-01-18
广东润元能源科技有限公司
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Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide a finite time control method for estimating and compensating communication delays in electric power networks, which solves the adverse effects caused by the inability of existing controls to compensate communication delays and lacks strict system dynamic performance analysis result

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  • Estimation and compensation finite time control method of communication delay of power network
  • Estimation and compensation finite time control method of communication delay of power network
  • Estimation and compensation finite time control method of communication delay of power network

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Embodiment Construction

[0084] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0085] Please refer to figure 1 , the present invention provides a finite time control method for estimating and compensating power network communication delay, comprising the following steps:

[0086] Step S1: according to the method of T-S fuzzy model, build the fuzzy model of power system multi-node network;

[0087] Step S2: construct the finite time fuzzy observer, calculate and obtain the error limit of delayed signal in finite time;

[0088] Step S3: According to the obtained error limit, design a fuzzy compensation controller, so that the fuzzy model is bounded and stable within a finite time.

[0089] In an embodiment of the invention, the step S1 is specifically:

[0090] Step S11: Establish a nonlinear dynamic system of power network nodes, as shown in formula (1):

[0091]

[0092] where N i is the set of all power network nodes conn...

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Abstract

The invention relates to an estimation and compensation finite time control method of a communication delay of a power network. The method comprises the following steps: step S1: constructing a fuzzymodel of a multi-node network of a power system according to a T-S fuzzy model method; step S2: constructing a finite time fuzzy observer, and calculating an error margin of a delay signal within a finite time; and step S3: designing a fuzzy compensation controller according to the obtained error margin, so that the fuzzy model is bounded stable within the finite time. By adoption of the estimation and compensation finite time control method provided by the invention, the bounded stability of the power system within the finite time can be achieved in the presence of network delay, and the safeoperation of the power system is ensured.

Description

technical field [0001] The invention relates to a finite-time control method for estimating and compensating communication delay of a power network. Background technique [0002] With the construction of new energy power generation systems, the power network presents a distributed coupling characteristic. Distributed network communication can replace the traditional point-to-point communication method, which greatly reduces the cost and is widely used in the control of power networks. However, there is an inevitable communication delay in network communication, so in power network control, how to avoid or reduce network communication delay is very important. Traditional network control methods cannot compensate for the adverse effects of communication delays, and lack strict system dynamic performance analysis results. Contents of the invention [0003] In view of this, the object of the present invention is to provide a finite time control method for estimating and comp...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 钟智雄林文忠张祖昌邵振华
Owner 广东润元能源科技有限公司
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