Intelligent power grid economic dispatching method based on event triggering and fixed time

An economic scheduling and fixed-time technology, applied to electrical components, circuit devices, AC network circuits, etc., can solve the problem of increasing the load on the processor occupied by the network, and achieve the effects of safe communication, avoiding waste, and reducing update frequency

Pending Publication Date: 2022-08-09
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Although the number of updates of generators in the grid is reduced, the trigger function requires global state information, which will increase the network occupation and processor load.

Method used

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  • Intelligent power grid economic dispatching method based on event triggering and fixed time
  • Intelligent power grid economic dispatching method based on event triggering and fixed time
  • Intelligent power grid economic dispatching method based on event triggering and fixed time

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.

[0024] The present invention proposes a smart grid economic dispatch method based on event triggering and fixed time. The specific implementation process is as follows:

[0025] First, as figure 2 As shown, the communication topology of individual generators in a smart grid can be represented by an undirected graph to indicate that and A = (a ij ) ∈ R N×N Represents the node set, edge set, and adjacency matrix of an undirected graph, respectively. e ij =(i,j) means i and j are adjacent nodes, they can exchange information with each other. If (i,j)∈ε, then a ij =1, otherwise a ij =0. Furthermore, the Laplacian matrix is ​​defined as L=[l ij ]∈R N×N , when i=j, Represents the ne...

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Abstract

The invention discloses a smart power grid economic dispatching method based on event triggering and fixed time. The method is used for optimal dispatching between generators in a smart power grid. The method aims at quickly realizing the economic dispatching of the distributed smart power grid and remarkably reducing the communication frequency between the generators. The method can solve the problems of supply and demand balance between the power generation end and the demand end and power limitation of the generator. Different from the related work, the incremental cost proposed in the method can be converged within a fixed time, and the convergence time is independent of the initial state of the generator. This will provide more flexibility for the system. In addition, a completely distributed event triggering strategy is adopted, so that the interaction information between the generators can be reduced, and the waste of communication resources is avoided. Finally, several examples are introduced, and the effectiveness of the method is verified.

Description

technical field [0001] The invention belongs to the technical field of power system economic dispatch, in particular to a smart grid economic dispatch method based on event triggering and fixed time. Background technique [0002] As one of the classic problems in the field of smart grid, economic dispatch (ED) has received extensive attention from scholars in recent years. The purpose of dealing with the Economic Dispatch Problem (EDP) is to distribute the generated power among all generators under the condition of supply-demand balance and generator power constraints, so as to minimize the total generation cost in the grid. Therefore, corresponding optimization methods have been proposed, such as genetic algorithm, particle swarm optimization, Lagrangian relaxation method, Hopfield neural network and so on. However, these methods are all centralized ED methods, all generators share a central controller to collect and process the information of the whole system to realize e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06H02J3/00
CPCG06Q10/06315G06Q10/06313G06Q50/06H02J3/00H02J2203/20Y04S10/50
Inventor 纪良浩张林龙杨莎莎李华青郭兴
Owner CHONGQING UNIV OF POSTS & TELECOMM
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