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Microgrid-containing distribution network wiring mode planning and evaluation information system taking economy into account

A technology of connection mode and information system, which is applied in the field of planning and evaluation information system of connection mode including microgrid distribution network, and can solve the problems of lack of integration

Active Publication Date: 2014-11-19
SHANGHAI MUNICIPAL ELECTRIC POWER CO +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above literature discusses the wiring mode after the microgrid is connected, the optimization planning of the distributed power supply in the microgrid, and the economic evaluation point of view, and lacks integration. Therefore, the planning of the distributed power supply in the microgrid and the evaluation of the wiring mode after access worthy of in-depth study

Method used

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  • Microgrid-containing distribution network wiring mode planning and evaluation information system taking economy into account
  • Microgrid-containing distribution network wiring mode planning and evaluation information system taking economy into account
  • Microgrid-containing distribution network wiring mode planning and evaluation information system taking economy into account

Examples

Experimental program
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Effect test

Embodiment 1

[0071] like figure 1 As shown, a planning and evaluation information system including micro-grid distribution network connection mode considering economy, including database module 1, input module 2, analysis module 3, planning and evaluation module 4, output module 5 connected in sequence;

[0072] The input module 2 obtains the connection mode, micro-grid data, and power equipment data from the database module 1, and the analysis module 3 calculates the purchase stage cost and the operation stage cost of each connection mode according to the data analysis input by the input module 2, and sends it to the planning and evaluation module 4. According to the received data, the planning and evaluation module 4 first plans the distributed power in the micro-grid to obtain the annual cost of the micro-grid unit load, and then evaluates the economics of the wiring mode including this micro-grid, and the output module 5 Output planning and evaluation results.

[0073] The database mo...

Embodiment 2

[0126] In this example, the planning and evaluation information system of distribution network connection mode including micro-grid is applied to the economic evaluation of distribution network connection mode in an actual area and the micro-grid planning in it. This example is mainly for overhead lines and cable networks, at a typical load density (1MW / km in rural areas 2 , 10MW / km in urban areas 2 , 20MW / km in central urban area 2 30MW / km in load saturated area 2 ), the annual cost index per unit load under different substation capacities. The overhead line wiring mode mainly considers single radiation wiring, double-sided power supply multi-section single-connection wiring, two-supply one-standby wiring and multi-section multi-connection wiring, which are called schemes 1, 2, 3, and 4; the cable network wiring mode mainly considers single Radiation wiring, double-sided power hand-in-hand loop network wiring, two-supply and one-standby wiring, and double-loop wiring for b...

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Abstract

The invention relates to a microgrid-containing distribution network wiring mode planning and evaluation information system taking economy into account. The system comprises a database module, an input module, an analysis module, a planning and evaluation module and an output module, which are connected in sequence, wherein the input module acquires wiring modes, microgrid data and electrical equipment data from the database module; the analysis module analyzes and figures out the purchase-phase cost data and the run-phase cost data of the wiring modes according to data input by the input module, and sends the purchase-phase cost data and the run-phase cost data to the planning and evaluation module; according to the received data, the planning and evaluation module plans distributed generation in a microgrid first to obtain the annual cost per unit load of the microgrid, and then evaluates the economy of the wiring modes of a distribution network containing the microgrid; the output module outputs planning and evaluation results. Compared with the prior art, the system has the advantages of high efficiency, high conformability, capability of being closely associated with engineering practice, and the like.

Description

technical field [0001] The invention relates to an information system for planning and evaluating the connection mode of a distribution network including a microgrid considering economical efficiency. Background technique [0002] With the continuous expansion of the scale of the power grid, the ultra-large-scale power system also presents some disadvantages, such as high cost, difficult operation, and difficulty in adapting to the increasingly high safety and reliability requirements of users and diversified power supply needs. In order to overcome these disadvantages, microgrid technology has emerged as the times require, which can make up for the shortcomings of long-distance and ultra-high voltage power transmission, and can meet the increasing safety and reliability needs of users. [0003] The microgrid technology is proposed to realize the flexible and efficient application of distributed power generation technology at the level of medium and low voltage power grids, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 程浩忠刘舒方略时珊珊张益飞方陈曾平良张沈习兰洲谢潜
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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