Method for combined power supply based on industry mean peak-valley difference rate

A technology of peak-to-valley difference ratio and combined power supply, which is applied to electrical components, circuit devices, AC network circuits, etc. Effect

Active Publication Date: 2014-07-30
STATE GRID CORP OF CHINA +1
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the existing technology, provide a method for combined power supply based on the average peak-to-valley difference rate in the industry, and solve the problems of uneven heavy load and light load of transformers, and low capacity-load ratio

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  • Method for combined power supply based on industry mean peak-valley difference rate
  • Method for combined power supply based on industry mean peak-valley difference rate
  • Method for combined power supply based on industry mean peak-valley difference rate

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Embodiment Construction

[0044] Introduce the scheme of the present invention in detail below in conjunction with specific embodiment:

[0045] In the current distribution network planning, the load distribution of substations is mostly based on the convenience and economy of the region, and the influence of the load characteristics of the connected loads on the planning is rarely or generally not considered. However, due to the rapid development of the national economy, there are generally problems in the distribution network at present, such as excessively fast peak demand growth, uneven heavy-load and light-load transformers, and low capacity-load ratio. To solve the problem of uneven load, the present invention fully considers the load characteristics of various industries, and proposes a new concept "industry average peak-to-valley difference rate", and classifies the load according to this index, so as to provide technical support for distribution network planning and implementation of combined p...

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Abstract

The invention discloses a method for combined power supply based on an industry mean peak-valley difference rate. The method comprises the following steps that the typical industries and the typical day of an area with combined power supply to be carried out are selected; representative users are extracted from the selected typical industries, and statistics is carried out on the peak-valley difference rate of the representative users in the typical day; statistics is carried out on the peak-valley difference rate section of each typical industry to obtain the industry mean peak-valley difference rate; load classification is carried out on the selected typical industries; the industries with the large peak-valley difference and the industries with the small peak-valley difference or the industries with complementary peaks and valleys are classified into the same transformer or transformer substation, and combined power supply is carried out. The influence of load characteristics on a power distribution network and electric energy quality is fully considered, and the problems that at present, the uneven loads of the transformer are ubiquitous, and the capacity-load ratio of the transformer substation is too low can be effectively solved.

Description

technical field [0001] The invention relates to a distribution network combined power supply technology, in particular to a method for combined power supply based on the industry average peak-to-valley difference rate. Background technique [0002] Distribution network planning is an overall plan for the development and transformation of the distribution network in a long period of time in the future. Its purpose is to increase the power supply capacity of the distribution network with appropriate investment, adapt to the needs of load growth and improve the power supply quality of the distribution network, in harmony with social development and environmental protection. Distribution network planning includes two aspects: the transformation and expansion of the original distribution network and the construction of a new distribution network. The specific content includes the determination of planning phases, planning preparation, economic analysis and planning implementatio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G06Q50/06
Inventor 蒋琪蒋勃武婷婷张燕涛李静郝伟李明张东正杨柳冯坤侯浩录李博江赵蕾何凯段东东杨浩尚宏崔蕾黄虹朱春强李潼禹湘
Owner STATE GRID CORP OF CHINA
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