Evaluation pre-warning system for regional power grid voltage reactive power control

Abstract

The invention discloses an evaluation pre-warning system for regional power grid voltage reactive power control. The evaluation pre-warning system comprises a CIM (communication information model) analysis module, an E (E format) file analysis module, an AVC (automatic voltage control) running record data synchronization module, a database, an inquiry display module, a reactive power voltage safety analysis module, a district analysis module, an AVC operation analysis module and an AVC instruction correctness analysis module. Power grid topological data, power grid running data and AVC running data are stored in the database of the system, reactive power voltage safety analysis, district analysis, AVC equipment operation condition analysis and AVC instruction correctness verification are executed by reading the data in the database, and results are stored into the database of the system; finally inquiry displaying is implemented, so that AVC systems, part of which are to be put into operation and part of which are put into operation, can be comprehensively detected, analyzed, counted and pre-warned, so that the potential safety hazard caused by the operation of the AVC systems to a power grid can be avoided, and an active promotion effect on scheduling of the power grid can be achieved.

Description

technical field [0001] The invention relates to an evaluation and early warning system for voltage and reactive power control of regional power grids. Background technique [0002] With the rapid development of smart grid, the requirements for optimal control of voltage and reactive power are getting higher and higher. Voltage is one of the important indicators of power quality, and reactive power is an important factor affecting voltage quality. Therefore, the management level of voltage and reactive power will directly affect the safe and economical operation of the system. [0003] With the continuous increase of reactive power supply and reactive power compensation capacity in recent years, the lack of reactive power in the power grid is no longer the main contradiction. The main contradiction has become the contradiction between the unreasonable distribution of reactive power flow in the power grid and the unreasonable distribution of reactive power in large units. The...

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Problems solved by technology

These problems all lead to incorrect AVC actions, or abnormal frequent actions, which affect the effect of voltage and reactive power adjustment. Therefore, evaluating and warning the effect of reactive power and voltage control has become an urgent problem to be solved by those skilled in the art

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