Power supply system of main distribution load collaborative distribution network wiring structure

Abstract

The embodiment of the invention discloses a power supply system of a main distribution load collaborative distribution network wiring structure, which is used for solving a technical problem that a power supply bottleneck occurs easily because the existing distribution network wiring structure of a power grid in China only solves a problem of single structure reasonability of a distribution network layer but does not consider a cooperative relation between the distribution network layer and a main network layer structure and a load layer structure. The power supply system disclosed by the embodiment of the invention comprises a main network low-voltage bus layer, a distribution network main trunk layer, a distribution network secondary trunk layer and a user distribution room load layer, wherein the main network low-voltage bus layer, the distribution network main trunk layer, the distribution network secondary trunk layer and the user distribution room load layer are sequentially connected; the main network low-voltage bus layer is of an eight-bus four-segment wiring mode; the distribution network main trunk layer is of a double-link three-interconnection Y wiring mode; the distribution network secondary trunk layer is of a multi-closed-loop multi-interconnection collaborative power supply wiring mode; and the user distribution room load layer is of a single-bus sectionalized wiring and double standby bus wiring mode.

Description

technical field [0001] The invention relates to the field of distribution networks, in particular to a power supply system with a main load distribution cooperative distribution network connection structure. Background technique [0002] In recent years, with the continuous deepening of supply-side reforms and rapid economic development, electricity companies are no longer satisfied with basic power supply needs, but have put forward higher and higher requirements for power supply capacity, power supply reliability, and network self-healing capabilities. Therefore, according to their actual development stages, all localities have proposed distribution network wiring structures suitable for the reliability requirements of power supply in the region, and continue to study higher reliability, more reasonable structure, better economic benefits, and more suitable for smart distribution networks. Power grid development direction, network-wide coordinated power distribution networ...

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Problems solved by technology

[0009] The embodiment of the present invention provides a power supply system with a main load distribution cooperative distribution network connection structure, which solves the problem that the existing distribution network connection structure of the domestic power grid only solves the rationality of a single structure of the distribution network layer, and does not consider Its coordination relationship with the structure of the main network layer and the structure of the load layer leads to the inconsistency of automation level, power supply reliability, self-healing ability, network reconfiguration ability and power supply ability between the layers of the distribution network, which is prone to failure. Technical issues with power supply bottlenecks

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