A grid-based monitoring system for remaining power supply capacity of distribution network

Abstract

The invention discloses a gridded distribution network remaining power supply capacity monitoring system, comprising: a capacity monitoring module for monitoring the winding capacity of the main transformer whose voltage is stepped down from high voltage to medium voltage in the high voltage substation and in the grid. The nominal capacity, effective capacity and safety capacity of the voltage line, and the statistics of the nominal capacity and effective capacity of the distribution transformer; the load monitoring module is used to monitor the substation, medium voltage line and distribution transformer load in the grid, and generate the current load of the grid, Industry expansion reported installed capacity, potential power consumption capacity and load forecast value; the remaining capacity early warning module is used to analyze the operation status of substations, medium-voltage lines, distribution transformers, grid step-down capacity, and grid medium-voltage line capacity. The remaining capacity is analyzed, and suggestions for solutions are generated, and the analysis results are displayed as early warnings. By implementing the present invention, the operating state of the power grid can be monitored in real time, the state of the medium-voltage distribution network and the high-voltage substation can be combined, capacity warning can be obtained in advance, and the accuracy and effectiveness of management can be 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...

AI Technical Summary

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 in untimely solutions; the medium-voltage and high-voltage distribution networks are separated, the problem analysis is not synchronized, and the solution measures are not comprehensive

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