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Optimized dispatching method for improving load rate of power distribution network

A technology for optimizing dispatching and distribution network, applied in the direction of AC network voltage adjustment, etc., can solve problems such as difficulty in improving load rate capability, limited transformation capability, etc., to improve power supply reliability and voltage qualification rate, improve load rate, and solve the overall The effect of low load rate

Active Publication Date: 2013-09-04
JIANGSU ELECTRIC POWER CO +2
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Problems solved by technology

[0003] The technical problem to be solved by the invention is: due to the limited ability to transform the grid structure of most distribution networks in China, it is difficult to improve the load rate capability from the aspect of optimizing the grid structure. Technical issues resolved

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  • Optimized dispatching method for improving load rate of power distribution network
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  • Optimized dispatching method for improving load rate of power distribution network

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings. figure 1 It is the overall flowchart of the method of the present invention.

[0025] A kind of optimal scheduling method that improves distribution network load rate of the present invention, comprises the following steps:

[0026] 1) Collect the data of the current distribution network comprehensive index quantification model and evaluation system in real time, calculate the main transformer load rate, line load rate and distribution network area load rate of the distribution network, and abstract the constraint conditions and optimization goals into specific goals function, the specific calculation formula is as follows:

[0027] Main transformer load rate (R Tload )=actual power of main transformer / rated power of main transformer*100%

[0028] optimize the target:

[0029] 60% Among them, N is the number of main transformers, i is the i-th main transformer,

[0...

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Abstract

The invention discloses an optimized dispatching method for improving the load rate of a power distribution network, aiming at improving the load rate. The method comprises the following steps of building a power supply model of a power distribution network based on an index system of the power distribution network for evaluating the power supply capability, deriving a method for computing the load rate of the power distribution network, and adopting corresponding measures from an optimized running mode under the constraint conditions that the N-1 running mode is met, the power supply reliability is not lower than 99.99%, and the voltage qualified rate is not lower than 99.99% to improve the whole load capacity of the power distribution network. According to the optimized dispatching method for improving the load rate of the power distribution network disclosed by the invention, the phenomena that the whole load rate is not high and is not balanced commonly existed in the domestic power distribution network can be solved, and the power supply reliability and the voltage qualified rate can be improved as well.

Description

technical field [0001] The invention relates to an optimal dispatching method for a distribution network, in particular to an optimal dispatching method for increasing the load rate of a distribution network, and belongs to the technical field of power system distribution networks. Background technique [0002] The domestic distribution network generally has the phenomenon that the overall load rate is not high and the load is unbalanced. Many lines have heavy loads, but they do not have the ability to transfer loads. Multiple long-term power outages due to faults and maintenance are inevitable, and it is difficult to meet the N-1 security constraints of the distribution network. In recent years, the power load of urban power grid has increased sharply, forming a load-intensive area, which requires improving the power supply capacity on the basis of not massively transforming the original grid. At the same time, the society has higher and higher requirements for the service...

Claims

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Application Information

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IPC IPC(8): H02J3/12
Inventor 沈浩东吴琳陈楷鲁文杜红卫韩韬赵浚婧刘娅琳季侃王长宝
Owner JIANGSU ELECTRIC POWER CO
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