Gridding power distribution network residual power supply capacity monitoring system

Abstract

The invention discloses a gridding power distribution network residual power supply capacity monitoring system, which comprises a capacity monitoring module used for monitoring the capacity of a maintransformer winding in a high-voltage transformer substation and in a grid from high voltage to medium voltage, monitoring the nominal capacity, the effective capacity and the safety capacity of a medium-voltage line, and counting the nominal capacity and the effective capacity of a distribution transformer; a load monitoring module used for monitoring a transformer substation, a medium-voltage line and a distribution transformer load in a grid, and generating a grid current situation load, a business expansion capacity, a potential power utilization capacity and a load prediction value; and aresidual capacity early warning module used for analyzing the operation conditions of the transformer substation, the medium-voltage line, the distribution transformer, the grid voltage reduction capacity and the grid medium-voltage line capacity current situation, analyzing the residual capacity, generating solution suggestions and carrying out early warning display on an analysis result. According to the invention, the operation state of the power grid is monitored in real time, the medium-voltage power distribution network is combined with the state of the high-voltage transformer substation, capacity early warning is obtained in advance, and the management accuracy and effectiveness are improved.

Description

technical field [0001] The invention belongs to the application field of power systems, and relates to a grid-based monitoring system for remaining power supply capacity of distribution networks. Background technique [0002] The distribution network is directly oriented to users, and is closely related to urban planning and development, as well as users' diverse electricity demand. Urban distribution network can be divided into high-voltage distribution network (110 kV, 35 kV), medium-voltage distribution network (20 kV, 10 kV) and low-voltage distribution network (below 0.4 kV) according to voltage level. [0003] In recent years, the scale of urban distribution network has become larger and larger, and the planning and management are very cumbersome. In order to effectively plan and manage the distribution network, the grid concept has been gradually established. It is divided into several geographically and electrically independent power supply grids, and the grid is us...

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Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is that the discovery of problems in the distribution network management lags behind, resulting i

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