Intelligent electric energy meter-based substation electric energy balance monitoring method

Abstract

The invention discloses an intelligent electric energy meter-based substation electric energy balance monitoring method. The method comprises the following steps of: mounting intelligent electric energy meters on all the power grid devices for forming electric energy balance monitoring points; acquiring base codes of the intelligent electric energy meters and calculating an unbalance rate according to an intelligent electric energy meter metering result period; and carrying out out-of-limit judgement according to an artificially preset unbalance rate threshold value, and generating alarm records for the out-of-limit monitoring points. According to the method, accurate monitoring for substation electric energy balance is realized, the error is small, real-time operation states of substationdevices can be correctly reflected, data basis and technical support are provided for power grid companies to comprehensively carry out transmission network same-term line loss balance assessment, and the power grid balance control level is greatly improved.

Description

technical field [0001] The invention relates to a method for monitoring electric energy balance of a substation based on an intelligent electric energy meter, and belongs to the technical field of electric power dispatch control application. Background technique [0002] Electric energy balance is the core index of transmission network loss management. At present, electric energy balance is mainly calculated by using integral electric quantity in dispatching electric power data acquisition and monitoring system. The integrated power is obtained by mathematical integral calculation based on the pulses collected per second. Compared with the electric energy meter, it has the characteristics of low precision and poor reliability, which affects the reliability of the electric energy balance calculation results, and then affects the assessment and management of the electric energy balance monitoring points of the substation. Contents of the invention [0003] The technical pro...

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Problems solved by technology

The integrated power is obtained by mathematical integral calculation based on the pulses collected per second. Compared with the electric energy meter, it has the characteristics of low precision and poor reliability, which affects the reliability of the calculation result of electric energy balance, and then affects the assessment and management of the electric energy balance monitoring point of the substation.

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