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Evaluation method of power supply reliability of distribution network based on demand response

A demand response and reliability technology, applied in data processing applications, instruments, calculations, etc., to achieve the effect of solving the problem of power supply reliability evaluation

Inactive Publication Date: 2016-03-16
STATE GRID CORP OF CHINA +1
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Problems solved by technology

This method effectively solves the problem of power supply reliability assessment of distribution network based on demand response.

Method used

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  • Evaluation method of power supply reliability of distribution network based on demand response
  • Evaluation method of power supply reliability of distribution network based on demand response
  • Evaluation method of power supply reliability of distribution network based on demand response

Examples

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Embodiment Construction

[0102] The following takes the improved IEEEERBTSBus6F4 feeder as the research object for reliability evaluation. Add a fan with a power of 3MW to the RBTSBus6F4 feeder. (Such as figure 1 shown)

[0103] In the first step, a time-of-use electricity price model is established for the system, and the results of the time-of-use electricity price are obtained as shown in Table 1 below:

[0104] Table 1 Division of time-of-use electricity price periods

[0105]

[0106] According to the relevant knowledge about electric power elasticity introduced above, the interest transfer coefficient is selected in this paper , the electricity price before implementing the time-of-use electricity price is 1.00 yuan / kwh, the marginal cost during the off-peak period is 0.30 yuan, and the elasticity coefficient matrix is:

[0107]

[0108] Then use the fuzzy optimization theory to continuously optimize the multi-objective optimization scheme, and the optimization results of the time-sh...

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Abstract

The invention relates to an evaluation method of the power supply reliability of a distribution network based on demand response. The method includes steps: 1) building a demand response model based on time-of-use power price; 2) building an improved load optimization model based on demand response; 3) performing optimization and classification of an optimized load curve by employing a bisection method, and solving the optimal classification number; and 4) establishing an improved cluster load analysis reliability evaluation algorithm based on the bisection method; and changing a cluster load interval into a monotonic increasing trend for convenient calculation. According to the method, the problem of the evaluation of the power supply reliability of the distribution network based on demand response is effectively solved.

Description

technical field [0001] The invention relates to the technical field of power supply systems, in particular to a demand response-based power supply reliability evaluation method for distribution networks. technical background [0002] As a part directly connected to users, the power distribution system directly affects the normal power supply of users, and it plays an important role in safe, reliable and economical power supply. The introduction of demand-side response (especially the time-of-use electricity price mechanism) has changed the traditional power consumption mode of power users, making them more actively participate in the behavior of peak-shaving and valley-filling in the power system, thereby reducing power loss and passing demand Side response to achieve two-way interaction and other advantages, can effectively improve the power supply reliability of the distribution network. However, the research on distribution network reliability assessment algorithms is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 王颖王涛袁建普康伟任志刚李树水张章张倩茅习朋荆志朋张丽洁邵华凌云鹏贺春光胡珀马国真韩文源谢晓琳秦伟张欣悦翟广心张昭旭孟繁华彭冲
Owner STATE GRID CORP OF CHINA
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