Comprehensive evaluation method of micro-grid

A comprehensive evaluation and micro-grid technology, applied in data processing applications, instruments, calculations, etc., can solve problems such as no micro-grid evaluation, failure of equipment to maximize benefits, and failure to consider equipment utilization.

Active Publication Date: 2013-12-04
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD +1
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Problems solved by technology

In order to understand the benefits brought by the power grid, the power grid company needs to evaluate the operation of the power grid. The existing power grid evaluation system is mainly proposed for the traditional power grid, and there is no evaluation for the micro-grid.
Moreover,

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Embodiment Construction

[0069] The present invention is described further below:

[0070] A comprehensive evaluation method for a microgrid of the present invention,

[0071] 1) The economic evaluation index of the microgrid, the carbon emission evaluation index of the microgrid, the reliability evaluation index of the microgrid and the safety evaluation index of the microgrid are used as the comprehensive evaluation index of the microgrid; the economic evaluation of the microgrid is G 1 (X) and carbon emission evaluation of microgrid G 2 (X) As the objective function of the overall comprehensive evaluation maxG(X) of the microgrid, the reliability evaluation of the microgrid and the security evaluation of the microgrid are used as the constraint conditions of the overall comprehensive evaluation maxG(X) of the microgrid, and the investment of the microgrid is obtained Benefit multi-objective evaluation model:

[0072] max G(X)=[a 1 G 1 (X), a 2 G 2 (X)] T

[0073] h i (X)=0,g j (X)≤0, i=1,...

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Abstract

The present invention discloses a comprehensive evaluation method of a micro-grid. The method is characterized by taking an economic evaluation index of the micro-grid, a carbon emission evaluation index of the micro-grid, a reliability evaluation index of the micro-grid and a security evaluation index of the micro-grid as a comprehensive evaluation index of the micro-grid, wherein the economic evaluation G1 (X) of the micro-grid and the carbon emission evaluation G2(X) of the micro-grid are used as the objective functions of the overall comprehensive evaluation max G(X) of the micro-grid, and the reliability evaluation of the micro-grid and the security evaluation of the micro-grid are used as the constraint conditions of the overall comprehensive evaluation max G(X) of the micro-grid, so that a multi-target evaluate model of the investment benefits of the micro-grid is obtained. According to the present invention, the micro-grid is evaluated comprehensively at various aspects of the micro-grid, such as the economy, the reliability, the carbon emission, etc., so that the automation decision is realized, the calculation is simple and convenient, the operability is strong, and the obtained data is more accurate. The comprehensive evaluation method of the micro-grid of the present invention also provides theoretical bases for the technical scheme comparison of a micro-grid engineering and the comprehensive evaluation of the micro-grid.

Description

technical field [0001] The invention relates to a comprehensive evaluation method for a micro-grid, which is suitable for evaluating a distributed power generation system. It belongs to the field of power grid technology. Background technique [0002] Traditional power generation mainly uses thermal power generation. With the depletion of fossil energy and the requirements of low-carbon and environmental protection, new energy has gradually replaced traditional power generation. Existing clean energy includes wind energy, water energy, solar energy, etc. These clean energy uses distributed power generation, also known as distributed energy. If these distributed energy sources are directly connected to the grid, it may cause many problems such as the power quality of the power system and the safety and stability of the power grid. In order to further improve the flexibility, controllability and economy of power system operation, and to better meet the higher requirements of...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
CPCY04S10/60Y04S10/50
Inventor 张雪焱谭茂强廖毅邓长虹何俊黄文涛
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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