Comprehensive benefit analysis method and device for distributed photovoltaic access

A distributed photovoltaic, comprehensive benefit technology, applied in the field of comprehensive benefit analysis of distributed photovoltaic access, can solve problems such as large initial investment of distributed photovoltaics

Inactive Publication Date: 2017-05-10
STATE GRID CORP OF CHINA +2
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  • Abstract
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Problems solved by technology

[0003] However, the development and construction of distributed photovoltaics requires a large initial investment. At the sa

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  • Comprehensive benefit analysis method and device for distributed photovoltaic access
  • Comprehensive benefit analysis method and device for distributed photovoltaic access
  • Comprehensive benefit analysis method and device for distributed photovoltaic access

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] The embodiment of the present invention provides a comprehensive benefit analysis method for distributed photovoltaic access, please refer to figure 1 , showing a schematic flow chart of the method, which may include:

[0048] Step S101: Based on the planning information of distributed photovoltaics connecting to the distribution network, determine the power distribution parameters after the distributed photovoltaics are connected to the distribution ne...

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Abstract

The invention provides a comprehensive benefit analysis method and device for distributed photovoltaic access. The method comprises the steps of determining a power distribution parameter after distributed photovoltaic power distribution network access according to planning information of the distributed photovoltaic power distribution network access; calculating steady-state power flow one by one point in time within a preset time frame of the power distribution parameter, and determining electricity limiting quantity of each time point according to the steady-state power flow of each time point; judging whether the sum of electricity limiting quantities of all time points is larger than a preset value or not; calculating cost and benefit which are brought by the distributed photovoltaic power distribution network access when the sum of the electricity limiting quantities of all time points is smaller than or equal to the preset value; and determining comprehensive benefit of the distributed photovoltaic power distribution network access according to the cost and the benefit which are brought by the distributed photovoltaic the power distribution network access. By the method, the annual comprehensive benefit of the distributed photovoltaic the power distribution network access can be determined according to the planning information of the distributed photovoltaic the power distribution network access and annual 8,760-hour network running state, so that a scientific basis can be provided for distributed photovoltaic optimization and planning.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a comprehensive benefit analysis method and device for distributed photovoltaic access. Background technique [0002] With the development of the national economy, the demand for electric power increases rapidly, people pay more attention to environmental issues and the requirements for reliability of power supply continue to increase. The nearby access of distributed photovoltaics and direct power supply to users are conducive to reducing transmission and distribution losses, delaying grid investment, improving power supply reliability, promoting economic development, energy conservation and emission reduction, and have good economic and social benefits. [0003] However, the development and construction of distributed photovoltaics requires a large initial investment. At the same time, the high penetration rate connected to the grid may also bring grid transformation co...

Claims

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Application Information

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IPC IPC(8): H02J3/38
CPCH02J3/383Y02E10/56
Inventor 闫湖黄碧斌王基李琼慧洪博文胡静王刘芳徐斌
Owner STATE GRID CORP OF CHINA
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