Planning method and system for optimizing micro-grid containing distributed power sources and stored energy

A technology of distributed power supply and optimized planning, applied in data processing applications, forecasting, instruments, etc., can solve problems such as difficulty in meeting the requirements of microgrid construction planning

Active Publication Date: 2014-07-02
HOHAI UNIV +3
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Problems solved by technology

The traditional planning of the above-mentioned literature analyzes the distributed power generation site selection, fixed capacity and self-grid planning of the microgrid as independent decoupling

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  • Planning method and system for optimizing micro-grid containing distributed power sources and stored energy
  • Planning method and system for optimizing micro-grid containing distributed power sources and stored energy
  • Planning method and system for optimizing micro-grid containing distributed power sources and stored energy

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specific Embodiment

[0199] refer to Figure 6 to Figure 9 As shown, in this embodiment, an intelligent optimization algorithm-based microgrid optimization planning system with distributed power sources and energy storage is applied to a microgrid plot to be planned with 29 nodes in a certain area of ​​China, and the DG selection in the microgrid is carried out respectively. Site determination, micro-grid grid planning, and the joint planning of determining that the investment subject is the power company, and the evaluation results are given for the output planning scheme calculation. The geographical distribution of the planned plots is as follows: Figure 6 As shown, the plot area is 8km 2 , the voltage level is 10kV, and the line model used is overhead line LGJ-185. Among them, node 1 is planned as a PCC point, which is connected to the upper-level power grid.

[0200] The reference basic data input into module 1 of this system includes the following data:

[0201] (1) Load related paramet...

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Abstract

The invention discloses a planning method and system for optimizing a micro-grid containing distributed power sources and stored energy, wherein the planning method and system are based on an intelligent optimization algorithm. The planning method is used for optimizing the micro-grid containing the distributed power sources and the stored energy, and comprises the steps that basic data are provided for a planning and design scheme, and modeling and load flow calculation are performed on an area to be planned; a micro-grid wiring mode suitable for the area to be planned is determined; site locations, to be chosen, of the multi-type distributed power sources are determined; a site distribution and capacity determining model is established, and a grid frame of the micro-grid containing the distributed power sources and the stored energy is planned and designed; a joint planning scheme and a joint planning module under a decided investment subject are formed; the joint planning scheme is output and evaluated. According to the planning method and system for optimizing the micro-grid containing the distributed power sources and the stored energy, on the basis of basic characteristic study of the distributed power sources and the micro-grid, planning for optimizing the micro-grid containing the photovoltaic power sources is systematically studied, the positions, capacities and the grid frame structures of all kinds of distributed power sources in the micro-grid in the specified planning area are reasonably allocated, and the micro-grid optimization planning scheme which is complete, effective and high in integrity, and is closely integrated with engineering practice is established.

Description

technical field [0001] The invention relates to the technical field of micro-grid optimization planning, in particular to a micro-grid optimization planning method and system based on an intelligent optimization algorithm including distributed power sources and energy storage. Background technique [0002] With the rapid growth of power system load demand, large-scale centralized power generation and ultra-high voltage long-distance transmission have gradually become the main methods of electric energy production, transmission and distribution. Large-scale power systems have high investment costs and difficult operation, and the power supply of large power grids cannot flexibly track load changes, and local accidents are prone to deterioration. Therefore, distributed generation and microgrid technology are getting more and more attention. In order to reduce the impact of distributed generation (DG) access on the distribution network and allow more DG access, as a good solut...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06
Inventor 钱君霞马洲俊张惠刚陈志飞吴峰郭贤张小辰王冠青王亮胡煜宁玉宝赵盛杰陈建峰罗兴
Owner HOHAI UNIV
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