Chain extension power supply system

A power supply system and chain technology, applied in the direction of power network operating system integration, information technology support system, electrical components, etc., can solve the problems of unsuitable triangular expansion power supply system, poor construction reliability, no scalability, etc., and achieve improvement Inter-station mutual supply capability, reduction of construction cost, elimination of power supply "bottleneck" and the effects of weak links

Active Publication Date: 2011-08-31
STATE GRID CORP OF CHINA +1
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Problems solved by technology

However, among various typical urban forms, there is an urban form called belt city, which is an urban regional form mainly formed under the action of the axial force along the traffic line. The axes are distributed in bands, such as some cities in the coastal areas. Obviously, such geographical conditions cannot be applied to the triangu...

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  • Chain extension power supply system
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Embodiment Construction

[0028] Best practice:

[0029] Refer to attached figure 1 , a chain-type extended power supply system, including three power supply points in the set area, namely power supply A (station A), power supply B (station B) and power supply C (station C), the three power supply points are linearly distributed, Arranged in strips, power supply B is located in the center of the area, power supply A and power supply C are respectively located at the two ends of the area, power supply A and power supply C respectively provide four feeder lines to the direction of power supply B, and power supply B feeds out 8 feeder lines, of which four feeder lines The four feeders provided by the power supply A are respectively connected through the contact switch to form two sets of AB double-ring network connections. It is a feeder unit, and each of the above-mentioned feeders includes a plurality of section switches, the section switches are normally closed switches, and the tie switches are norma...

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Abstract

The invention relates to a power supply system, in particular to a chain extension power supply system, which is applied to bar-shaped and zonal urban regions. In a set region, three power points distributed in a bar shape are provided, four feeder lines are formed between every two adjacent power points, each feeder line adopts a multi-segment connection mode, and power is supplied to the regionby feeder line units of a double-loop network. The chain extension power supply system initiatively put forwards a chain extension intermediate-voltage distribution network power supply mode suitablefor the standardization and differentiation of bar-shaped and zonal regional forms, has high symmetry and uniformity, optimizes the power distribution points of a high voltage distribution networks and reorganizes the network structure of an intermediate voltage distribution network, thereby improving the power supply reliability of the distribution network, shortening the power failure time of aser, enhancing the power supply transferring capability of the distribution network, gradually eliminating power supply 'bottlenecks' and weak links, enhancing the resistance of the distribution network to natural disasters and providing strong support for the construction of the distribution network. In a development process, the power supply system has relatively higher extensibility, and the reliability of the system is fully ensured.

Description

technical field [0001] The invention relates to a power supply system, in particular to a chain-type extended power supply system, which is suitable for strip-shaped and belt-shaped urban areas. Background technique [0002] The grid structure is the "bones" of the medium voltage distribution network. The domestic research and practice on the grid structure in the prior art are all focused on the wiring mode, and the wiring mode only reflects the structure and connection between several medium voltage feeders. relationship, and cannot reflect power distribution factors such as regional characteristics and load characteristics. Therefore, the inventor proposed a triangular extended power supply system in July 2010 (patent number: ZL201020265077.9). one or more areas. However, among various typical urban forms, there is an urban form called belt city, which is an urban regional form mainly formed under the action of the axial force along the traffic line. The axes are distr...

Claims

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Application Information

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IPC IPC(8): H02J4/00H02J9/00
CPCY02B70/30Y04S20/20
Inventor 林韩吴文宣陈彬张功林吴涵
Owner STATE GRID CORP OF CHINA
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