A distribution network reliability improvement optimal investment method considering load time sequence characteristics

A reliability and timing technology, which is applied in computing, resources, data processing applications, etc., can solve problems such as it is difficult to truly reflect the reliability level of the system

Inactive Publication Date: 2019-05-31
JIANGSU ELECTRIC POWER CO
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Problems solved by technology

[0007] The purpose of the present invention is to provide a distribution network reliability improvement optimal investment method that takes into account the load timing characteristics, so as to overcome the defect that it is difficult to truly reflect the system reliability level when evaluating system reliability with a single load level

Method used

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  • A distribution network reliability improvement optimal investment method considering load time sequence characteristics
  • A distribution network reliability improvement optimal investment method considering load time sequence characteristics
  • A distribution network reliability improvement optimal investment method considering load time sequence characteristics

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Embodiment Construction

[0034] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0035] Such as figure 1 As shown, in this embodiment, the optimal investment method for improving distribution network reliability considering load timing characteristics specifically includes:

[0036] Step S101, collecting time-series load data of the maximum load peak day in each quarter of each load point of the distribution network.

[0037] Step S102, obtain the expected value of the annual power shortage of the load point when the power supply is sufficient and the expected value of the annual power shortage on the day of the maximum load peak, and add the expected value of the annual power shortage of the load point when the power supply is sufficient and the day of the maximum load peak to obtain the load The...

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Abstract

The invention relates to the field of power distribution network facility construction and reconstruction, and particularly relates to a distribution network reliability improvement optimal investmentmethod considering load time sequence characteristics. The method specifically comprises the steps of obtaining an expected value of a total annual power supply quantity of a load point by combiningtime sequence load data of a maximum load peak value day in each season of each load point of a distribution network, and taking a system power supply shortage expected value ENS as a target value ofsensitivity analysis. The weak link of the power supply reliability is mined by analyzing information brought by sensitivity analysis of the reliability index to the element parameters, all electricalequipment with high sensitivity is transformed firstly, and therefore an optimal reliability improvement investment scheme is obtained.

Description

technical field [0001] The invention belongs to the field of construction and transformation of power distribution network facilities, and in particular relates to an optimal investment method for improving distribution network reliability taking into account load timing characteristics. Background technique [0002] In recent years, with the development of economy and society and the improvement of people's living standards, my country's demand for electricity has been increasing. As an important part of the power system, the distribution network plays an important role in meeting the power demand. [0003] Therefore, the country will invest more funds in the transformation of distribution network to improve the reliability of power supply of distribution network. In the context of huge investment, optimizing the investment plan to improve the reliability of distribution network power supply is an effective way to realize the rational allocation of resources, which is cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
Inventor 顾韧唐璜陈磊倪蕙姚维明范文江
Owner JIANGSU ELECTRIC POWER CO
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