Current magnetic field-based multi-power transmission line parameter measuring method
A transmission line and parameter measurement technology, applied in the direction of measuring devices, measuring magnetic variables, electrical digital data processing, etc., can solve problems such as the difficulty in arranging circular sensor arrays, and achieve the effect of reducing the impact
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[0030] Hereinafter, the present invention will be clearly and completely described with reference to the accompanying drawings. However, it should be understood that the following description is exemplary only, and is not intended to limit the present invention to the following examples.
[0031] Aiming at the problems existing in the existing measurement methods of power system transmission line parameters based on shunt resistors or current sensors, such as the difficulty in achieving electrical insulation, the large size of the measurement device, and the difficulty of narrow measurement range and frequency band, a new method based on Multi-transmission line parameter measurement method for current and magnetic fields. By arranging magnetic field sensors around the transmission line, collecting the magnetic field strength measured by the magnetic field sensor, and inverting the current and position parameters of the transmission line, the high-precision and wide-band measur...
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