Method of eliminating ferromagnetic resonances
A ferromagnetic resonance and resonance technology, applied in the electromagnetic field, can solve the problems of zero-sequence voltage error, affecting the signal action of the system insulation monitoring device, and zero-sequence PT burning.
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[0041] The present invention will be further described below in conjunction with drawings and embodiments.
[0042] hardware structure
[0043] The hardware system of the microcomputer harmonic elimination device mainly includes MCU main system, data volume input system, human-computer interaction system, communication interface, power supply system and harmonic elimination circuit. The hardware structure block diagram is as follows: figure 1 shown.
[0044] MCU main system
[0045] The MCU main system is the core part of the entire microcomputer harmonic elimination device. In addition to executing the sine fitting algorithm and FFT algorithm, it is also responsible for triggering the conduction of the thyristor, multi-channel A / D conversion control, real-time clock control, human-computer interaction system control and Communication with substation background equipment. Considering that the microcomputer harmonic elimination device of this program has simple functions, sm...
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