Operation error remote calibrating method of intelligent ammeter

Abstract

The invention relates to an operation error remote calibrating method of an intelligent ammeter. The method comprises the following steps: (1) installing an intelligent ammeter cluster to form a tree-shaped topological structure; (2) to obtain a flow conservation foundation model of the intelligent ammeter cluster; (3) importing a virtual branch circuit to dynamically correct an intelligent ammeter cluster topological model, to obtain a flow conservation algorithm model; (4) to obtain electric current incremental data of the intelligent ammeter cluster repeatedly, and calculating a relative error; (5) correcting a calculation result and uncertainty evaluation; and (6) to obtain an error calculation result. The method is capable of, in allusion to 0.48 billion of the on-line operated intelligent ammeters in state grid corporations, applying a full data sample thinking mode, mining mass electric energy data of a power consumer electricity information collection system without the help ofan external standard instrument, carrying out the remote verification technical research of the intelligent ammeters, enabling both power supplier and consumer to master the accuracy of an electric energy metering device in real time, satisfying the expected requirement of clients, and improving the corporate image.

Description

technical field [0001] The invention belongs to the field of electric energy measurement, in particular to a method for remote calibration of operating errors of intelligent electric energy meters. Background technique [0002] The accuracy of electric energy metering devices in operation has always been a hot issue that residents and State Grid Corporation are most concerned about. At present, the State Grid Corporation uses statistical analysis methods or adding online detection equipment to realize the supervision and evaluation of the operating errors of smart energy meters. Although the statistical analysis method has changed the single-phase electric energy meter used by residents in the past from regular rotation to random inspection, it is still the control of the overall batch; adding online monitoring equipment will definitely increase the purchase and maintenance costs of the enterprise. This method maintains Costly and limited. [0003] The goal of this technic...

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