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Event-triggered power system economic dispatching method under quantitative communication

An event-triggered, power system technology, applied in information technology support systems, system integration technology, electrical components, etc., to reduce communication costs and reduce dependence

Active Publication Date: 2020-07-14
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Traditional economic dispatch usually adopts a centralized dispatch method. In the centralized dispatch method, it is necessary to centrally access the operating status of all generating units, optimize and calculate the optimal target value, and then send the optimal value to the power system. power generation unit, this centralized approach requires more communication, putting a lot of pressure on communication and computing

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  • Event-triggered power system economic dispatching method under quantitative communication
  • Event-triggered power system economic dispatching method under quantitative communication
  • Event-triggered power system economic dispatching method under quantitative communication

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Embodiment Construction

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0039] The present invention takes a system composed of 5 generators as an example, the communication topology between generators is as follows figure 1 As shown, it is assumed that the output power of all generators in this experiment is within the constraints.

[0040] 1) Set system parameters: the number of generators is N=5, and the total power requirement is P D is 800MW, the cost function of the generator is: C i (P i ) = a i P i 2 +b i P i +c i , where P i is the generating power of generator i, a i , b i 、c i is the cos...

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Abstract

The invention provides an event-triggered power system economic dispatching method under quantitative communication, and the method achieves the economic dispatching of a power system through considering the quantification of real-value signal transmission and employing an event triggering mode on the basis of a distributed power system economic dispatching method. According to the method, the advantages of quantification of signal transmission and a multi-agent consistency algorithm under event triggering are combined, so the data transmission can be completed under the limitation of data capacity, communication bandwidth and the like, the dependence on communication is reduced compared with a centralized algorithm, and the limitation that the communication bandwidth of real-value transmission is infinite in an ideal state is relieved. In the iteration of the consistency algorithm, the strong connectivity of the communication topology of the generator sets is not required, and only the information exchange transmission of the adjacent generator sets is required in the actual operation. A trigger function in the event trigger consistency algorithm is irrelevant to algebraic connectivity of a Laplace matrix, so the event trigger consistency algorithm can be effectively applied to economic dispatching of a distributed power system, and safe and stable operation of the power system is guaranteed.

Description

technical field [0001] The invention belongs to the field of electric power system economic dispatching, and considers an event-triggered electric power system economic dispatching method under the conditions of real-value transmission and communication constraints. Background technique [0002] The economic dispatch of the power system is a basic problem in the research and application of the stable operation of the power system. A scheduling method for reliable power supply. Traditional economic dispatch usually adopts a centralized dispatch method. In the centralized dispatch method, it is necessary to centrally access the operating status of all generating units, optimize and calculate the optimal target value, and then send the optimal value to the power system. The power generation unit, this centralized approach requires more communication, which puts a lot of pressure on communication and computing. In the distributed algorithm, it is necessary to consider that the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/46
CPCH02J3/46H02J3/008Y04S10/50
Inventor 荣丽娜左文文刘霞樊毕芳
Owner NANJING UNIV OF POSTS & TELECOMM
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