Multi-user electric energy meter convenient for error verification and error verification method
A technology for calibrating errors and electric energy meters, which is applied in the field of smart meter measurement, can solve the problems of heavy workload and high cost of electric energy meters
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Embodiment 1
[0070] At present, when the scale of the electric energy meter is large, the multicollinearity problem of the electric energy meter data will be derived due to the similarity of the user's electric energy consumption habits, which will not only reduce the efficiency of the calculation, but also affect the calculation accuracy of the data calculation method. In order to solve the foregoing problems, this embodiment provides an electric energy meter that is convenient for error verification. In actual use, the power supply system of the pipeline with electric energy sensors is constructed as a structure of a plurality of subsystems that are convenient for error calculation. The electric energy meter includes at least two levels of 1-in and n-out electric energy arrays. Among them, the 1-in and n-out electric energy arrays can not only construct electric energy meters of any scale, but also can divide large-scale electric energy meters into For several small-scale electric energy ...
Embodiment 2
[0120] In actual use, the 1-in n-out power array has a variety of application scenarios. For example, the 1-in n-out power array can be used as an error calibration tool for electric energy meters. The power array is used as an error-free sensor system to verify the error of the power sensor connected in series on its pipeline branch; the 1-in-n-out power array can be used as a subsystem of the mesh power sensor system; the 1-in-n-out power array is used The principle of array design and make electric energy meter.
[0121] In addition, the expansion connection can be carried out through a 1-in and n-out power array. The method of cascading and expanding the power meter is: by cascading two 1-in and n-out power arrays, a power meter that can measure the error of the power sensor can be constructed, specifically , the "1" in the 1-in-n-out power array of the lower level is connected to the 1-in-n-out power array of the upper level (the error has yet to be calculated), and becom...
Embodiment 3
[0132] In combination with the electric energy meter of the above-mentioned embodiment, this embodiment provides an error checking method for a multi-user electric energy meter. The multi-user electric energy meter includes: at least two levels of 1-input and n-out electric energy arrays, wherein each level has a 1-input The n-out power array includes a power sensor master meter on the incoming line side and n power sensor sub-meters on the outgoing line side, a power sensor master meter on the incoming line side and n power sensor sub-meters on the outgoing line side Relative energy conservation relationship; among them, for two adjacent levels of 1-in n-out power arrays, the power sensor sub-meter on the outlet side of the upper-level 1-in-n-out power array is the next level 1-in-n-out power sensor sub-meter. The electric energy sensor general meter of the electric energy array is located at the incoming line side;
[0133] Among them, the power sensor master meter located i...
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