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Reactive power optimization method of regional power grid

An optimization method and technology of regional power grids, applied in reactive power compensation, reactive power adjustment/elimination/compensation, etc.

Active Publication Date: 2017-09-26
WENZHOU ELECTRIC POWER DESIGN
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  • Description
  • Claims
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Problems solved by technology

[0005] In view of the deficiencies in the existing technology, the purpose of the present invention is to provide a reactive power optimization method for regional power grids that is more convenient to calculate, less prone to lack of reactive power and excess reactive power, and minimizes overall network loss costs

Method used

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  • Reactive power optimization method of regional power grid
  • Reactive power optimization method of regional power grid
  • Reactive power optimization method of regional power grid

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Embodiment Construction

[0044] refer to figure 1 As shown, a method for reactive power optimization of a regional power grid in this embodiment is characterized in that it includes the following steps:

[0045] Step 1, stratify and partition the power grids and power stations in each region;

[0046]Step 2. Use the improved genetic algorithm to obtain the following objective function, and at the same time use the algorithm to find the solution of the objective function, so that the overall network loss of the power grid is minimized:

[0047]

[0048] Step 33, divide the peak and valley of electricity consumption according to the local electricity consumption situation;

[0049] Step 4: Classify the use priority of the control equipment according to the specific peak and valley conditions obtained in Step 3.

[0050] By adopting the above-mentioned technical scheme, when performing reactive power compensation on the power grid, firstly, each region and power station is stratified and partitioned...

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Abstract

The invention discloses a reactive power optimization method for regional power grids, which includes the following steps: step 1, stratify and partition the power grids and power stations in each region; step 2, use the improved genetic algorithm to obtain the following objective function, and use This algorithm finds the solution of the objective function, so that the overall network loss of the power grid is minimized; Step 3, divides the peak and valley of electricity consumption according to the local electricity consumption situation; Step 4, according to the specific peak and valley obtained in Step 3 According to the situation to divide the use priority of the control equipment. The reactive power optimization method of the regional power grid of the present invention can effectively minimize the overall network loss of the power grid by using the improved genetic algorithm to obtain the objective function and obtain the minimum value, and the calculation is simple. If the level is limited, it can more effectively avoid the lack or excess of reactive power in the grid.

Description

technical field [0001] The invention relates to a smart grid, and more specifically relates to a reactive power optimization method for a regional power grid. Background technique [0002] The power transmitted in the grid consists of two parts: active power and reactive power. Reactive power cannot do useful work, but it is indispensable in electromagnetic exchange and causes losses at the same time. Insufficiency and excess of reactive power have a significant impact on voltage quality and power loss. In my country's current power grid, inductive nonlinear loads such as motors [1] occupy a considerable proportion, and these loads need to absorb a large amount of reactive power. The distribution of energy and load centers is uneven, and the common phenomenon of long-distance transmission of reactive power is common. If the reactive power cannot be compensated locally, it will cause additional power loss in the grid and a large voltage drop at both ends of the line, resul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 赵璞高策周英庆林枫陈哲王文香朱海立张清周林明潮杜王毅
Owner WENZHOU ELECTRIC POWER DESIGN
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