0.2S-class three-phase power meter based on wide-range synchronous measurement and measurement method thereof
A wide-area synchronous measurement, three-phase energy meter technology, applied in the direction of measuring electrical variables, measuring devices, instruments, etc., can solve the problems of no equipment, no relevant reports, etc., to reduce the error of power balance and line loss calculation. Effect
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[0039] Such as figure 1 As shown, the 0.2S-level three-phase electric energy meter based on wide-area synchronous measurement includes a central processing unit, an analog-to-digital converter and a field programmable gate array connected to the central processing unit, a digital signal processor, a memory, a constant temperature crystal oscillator, and a clock The chip, the temperature and humidity measuring device, the field programmable gate array are connected with the digital signal processor, and the field programmable gate array and the digital signal processor are both connected with the analog-to-digital converter. The central processing unit is used to connect the clock synchronization system based on the second pulse of the traditional substation or the IEEE 1588 protocol clock system of the intelligent substation to synchronize and keep time with the clock system; the central processing unit is also used to issue automatic synchronous sampling comman...
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