Reactive power optimization method of regional power grid

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...

Examples

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...

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...

Examples

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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