Multi-criteria screening method and device for measurement errors of smart electric energy meters

A smart energy meter and measurement error technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve suspicious problems of smart energy meters, and achieve the effect of avoiding losses

Active Publication Date: 2018-06-12
北京市计量检测科学研究院
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  • Application Information

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Problems solved by technology

If the qualification standard is set too low, smart energy meters on the verge of failure will be considered qualified; if the qualification standard is set too high, a large number of qualified smart energy meters will be considered suspicious, which will lead to Extensive unnecessary inspection, repair and replacement work

Method used

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  • Multi-criteria screening method and device for measurement errors of smart electric energy meters
  • Multi-criteria screening method and device for measurement errors of smart electric energy meters
  • Multi-criteria screening method and device for measurement errors of smart electric energy meters

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Embodiment 1

[0025] figure 1 A flowchart showing a multi-criteria screening method for metering errors of a smart energy meter according to an embodiment of the present disclosure. The method may include the following steps.

[0026] Step 101 , according to the metrology verification regulations, unqualified smart power meters are eliminated from the plurality of smart power meters, and the measurement errors of the remaining smart power meters form a preliminary credible measurement error set. Generally, unqualified smart energy meters can be eliminated based on the national standard measurement and verification procedures adopted in the prior art. The measurement verification regulations can be relatively rigid indicators to ensure that the smart energy meters put into use at least meet the requirements of relevant national laws, regulations and rules. For example, for smart energy meters, you can refer to the "JJG596-2012 Electronic AC Energy Meter Verification Regulations", as long a...

Embodiment 2

[0048] According to the present disclosure, a multi-criteria screening device for metering errors of smart electric energy meters is also disclosed, the multi-criteria screening device may include: a first rejecting device, a first screening device, a second screening device, a second screening device Three screening devices and a second rejecting device.

[0049] The first removing device is used to remove unqualified smart electric energy meters from the plurality of intelligent electric energy meters, and the measurement errors of the remaining intelligent electric energy meters form a preliminary credible measurement error set. The first screening device is used to find suspicious measurement errors from the set of preliminary credible measurement errors based on the Raida criterion, and the suspicious measurement errors found based on the Raida criterion form the first set of suspicious measurement errors. If the number of measurement errors in the first set of doubtful m...

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Abstract

The invention discloses a multi-criterion screening method and a multi-criterion screening device for metering errors of intelligent watt-hour meters. According to the method, first, unqualified intelligent watt-hour meters are eliminated based on metrological verification regulations, and metering errors of remaining intelligent watt-hour meters are regarded as initial credible metering errors; and then, the most suspicious metering errors are found out from the initial credible metering errors based on combination of PauTa, Chauvenet and Grubbs gross error identification criteria, and the intelligent watt-hour meters corresponding to the most suspicious metering errors are regarded as intelligent watt-hour meters on the verge of failure, and are unqualified intelligent watt-hour meters. With the method and the device, loss to users and energy supply units is avoided, the mutual trust between related units and users is improved, and moreover, the check, repair and replacement workload of related departments is reduced.

Description

technical field [0001] The present disclosure relates to the field of meter measurement, and more specifically, to a multi-criteria screening method for measurement errors of smart electric energy meters and a multi-criteria screening device for measurement errors of smart electric energy meters. Background technique [0002] Before the smart energy meter such as the smart energy meter is officially used, the power company or the manufacturer needs to calibrate the smart energy meter to obtain its measurement error, and the qualified smart energy meter can be put into thousands of households and various industrial and mining enterprises . [0003] Generally, it can be judged whether the smart energy meter is qualified based on the standard (such as national standard) measurement verification procedures (for example, the "JJG596-2012 Electronic AC Energy Meter Verification Regulations" in the current electric power field), that is, if a smart energy meter is in a certain If ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 黄艳王焕宁吴锦铁梁炜赵志华
Owner 北京市计量检测科学研究院
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