Electric energy meter operation state remote evaluation method based on component comparison

Abstract

The invention relates to an electric energy meter operation state remote evaluation method based on component comparison, which evaluates the operation states of a voltage sampling component, a current sampling component and a metering chip of an electric energy meter through a multi-dimensional voltage analysis method and a zero and live wire current analysis method, and reduces the state estimation of the electric energy meter from an electric meter level to a component level. A new method is provided for remote estimation of the operation state of the electric energy meter, and a comprehensive research and judgment result of the operation state of the electric energy meter is obtained by further combining a zone area energy balance algorithm identification result.

Description

technical field [0001] The invention relates to an electric energy metering and collection management system, in particular to a method for remotely evaluating the operating state of an electric energy meter by comparing elements by component. Background technique [0002] Electric energy metering is the legal basis for electric energy trade and settlement of electricity charges in the power industry, and its accuracy is related to the vital interests of grid companies and every user. Therefore, it is very necessary to conduct remote evaluation of the running status of the running electric energy meter. With the full coverage of HPLC smart energy meters, the success rate of data collection such as electricity, voltage, and current has gradually increased, providing a strong data foundation for mining the value of power data and using power data to locate inaccurate energy meters. The methods for remotely evaluating the operating status of electric energy meters mainly inclu...

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Problems solved by technology

[0003] At present, power grid enterprises mainly control the operation status of electric energy meters through dismantling and verification, periodic rotation, regular sampling inspection and on-site testing. However, the above-mentioned control methods have the following problems: 1. The requirements for on-site inspection are relatively high, and they are easily affected by external factors. Impact; 2. The work intensity is high, and it will consume a lot of manpower and material resources to go to and from the site, and the management method is extensive and the efficiency is low; 3. When the electric energy meter fails, it cannot be found and dealt with in time, and it can only be found during the next periodic inspection or rotation. 4. According to the rotation cycle, indiscriminate replacement will cause a large number of electric energy meters with good quality and performance to be scrapped ahead of time, resulting in waste of resources

In addition, the existing remote evaluation method of the operating status of the electric energy meter is only aimed at the entire electric energy meter, and does not correlate and analyze the data such as voltage and current with the failure of the electric energy meter components, and cannot remotely judge the faulty components of the electric energy meter

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