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Distribution network distributed optimization control method with distributed power group cooperation

A technology of distributed power supply and optimized control, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of poor scalability, low reliability, large data acquisition and processing capacity, etc., to improve reliability, fair effect

Active Publication Date: 2019-03-29
WUHAN UNIV
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Problems solved by technology

The traditional centralized control method based on the SCDA system has the disadvantages of large amount of data collection and processing, poor scalability and low reliability, and cannot continue to play a role in the optimal control of distribution networks where a large number of distributed power sources are connected.

Method used

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  • Distribution network distributed optimization control method with distributed power group cooperation
  • Distribution network distributed optimization control method with distributed power group cooperation
  • Distribution network distributed optimization control method with distributed power group cooperation

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Embodiment Construction

[0041] The distribution network distributed optimization control method for group cooperation of the present invention divides the distributed power sources in a distribution network into multiple groups, among which there are n voltage control groups and 1 power control group, as shown in the attached figure 1 shown in ; taking the i-th voltage control group as an example, its goal is to control the per unit value V of the effective value of a certain node voltage CPi is 1, it is assumed that a distributed power supply in this group can measure V in real time CPi , the implementation steps include:

[0042] (1) Each distributed power source in the i-th voltage control group sets the initial value of the active power utilization rate β pi,j (0); where i=1,2,...,n; j=1,2,...,N i ; n and N i Respectively, the total number of voltage control groups and the total number of distributed power sources in the i-th voltage control group; start iterative calculation;

[0043] (2) Th...

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Abstract

The invention relates to the technical field of distributed optimization control of a distribution network, in particular to a distribution network distributed optimization control method with distributed power group cooperation. The method is characterized in that a distributed power supply in the distribution network is divided into a power control group and multiple voltage control groups; eachvoltage control group exchanges an active power utilization rate by using a distributed consistency algorithm to achieve optimal control of a certain node voltage; and the power control group exchanges the active power utilization rate by using the distributed consistency algorithm and sets the active power exchanged between the distribution network and an external power grid as a given value. The optimization control method realizes the optimization control of multiple objects of the distribution network in a distributed manner, and has good scalability, high robustness and high reliability,and is very suitable for the optimization operation of a distribution network with high-permeability distributed power access.

Description

technical field [0001] The invention relates to the technical field of distributed optimization control of distribution network, in particular to a distribution network distributed optimization control method of distributed power supply group cooperation. technical background [0002] The access of a large number of distributed power sources is an inevitable situation for the development of the distribution network in the future. The traditional centralized control method based on SCDA system has the disadvantages of large amount of data acquisition and processing, poor scalability and low reliability, so it cannot continue to play a role in the optimal control of distribution network connected to a large number of distributed power sources. The distributed optimization control method does not require a centralized controller, and has strong system scalability and control robustness. It has been widely used in engineering fields such as UAV formation control and robot coordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/46
CPCH02J3/381H02J3/46H02J2203/20
Inventor 乐健周谦王曹赵联港
Owner WUHAN UNIV
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