A method for configuring the power supply mode of distribution network in class A+ power supply area

Abstract

The invention relates to an A+ power supply region power distribution network power supply mode configuration method. The method is characterized by comprising the following content of (1) determining a typical power supply mode type of a power supply region according to A+ power supply region function division and user formation information, wherein the typical power supply mode type is one of A+-1 to A+-5; and (2) searching a power supply configuration scheme corresponding to the typical power supply mode in a configuration scheme set according to the determined typical power supply mode type, wherein the configuration scheme set comprises power supply configuration schemes corresponding to each typical power supply mode; and each power supply configuration scheme comprises voltage class, a power network structure, electric main wiring configuration, line configuration, power distribution facilities, power supply connection, load connection, a fault processing form and a power distribution automation terminal configuration form adopted by the typical power supply mode, communication and protection. The A+ power supply region power distribution network power supply mode configuration method can be widely used for an A+ power supply region power distribution network power supply mode configuration scheme.

Description

technical field [0001] The invention relates to a method for configuring a power supply mode of a power distribution network in a class A+ power supply area, and belongs to the technical field of power supply systems. Background technique [0002] The State Grid Corporation of China has proposed and established a typical power supply model library of the distribution network, and clarified the basis for the division of power supply areas of A+~E categories. Among them, the power supply area of ​​A+ category means that the load density σ≥30MW in the central area of ​​municipalities, provincial capitals, and cities under separate state planning / km 2 power supply area, and give 29 types of typical power supply areas, construct the power supply mode of each typical power supply area, including the selection of basic module groups such as grid power supply module group, power supply access module group, user access module group and distribution automation module group use, and ...

AI Technical Summary

Problems solved by technology

[0002] The State Grid Corporation of China has proposed and established a typical power supply model library of the distribution network, and clarified the basis for the division of power supply areas of A+~E categories. Among them, the power supply area of ​​A+ category means that the load density σ≥30MW in the central area of ​​municipalities, provincial capitals, and cities under separate state planning / km 2 power supply area, and give 29 types of typical power supply areas, construct the power supply mode of each typical power supply area, including the selection of basic module groups such as grid power supply module group, power supply access module group, user access module group and distribution automation module group use, and give the application steps of the typical power supply mode library, but in the actual application process, the power supply reliability and power supply capacity of the same type of power supply area are not the same, which makes designers unable to accurately apply various basic module groups, and the power supply Reliability refers to the ability of the power supply system to continuously supply power. It is an important indicator for assessing the power quality of the power supply system. It reflects the degree to which the power industry meets the power demand of the national economy. It has become one of the standards for measuring the degree of economic development of a country.

[0003] At present, the planning and design of distribution network projects within the scope of the State Grid has been deeply promoting the standardization construction, and the research work on the establishment method of the distribution network power supply model library has been carried out. The establishment and application steps of the module group have some mature research results. However, the current research on the typical power supply mode only proposes the division principle of the A+~E power supply area and the basic module group of the typical power supply mode applied in various power supply areas. , the specific application configuration schemes of various power supply areas have not been refined and decomposed, resulting in the inability of designers to carry out targeted work according to the requirements of various functional zoning in the actual planning area during the application process, unable to reflect differences, and low work efficiency And timeliness, power supply reliability is poor

Images