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This paper introduces a kind of high-speed real-time information collection system based on FPGA and USB. Through the software and hardware technology, the system uses the combination of EP2C8Q208C8FPGA chip of Cyclone II series, FT245BM type fast USB communication interface chip of FTDI company and HK-2000 G pulse transducer. The system realizes the collection of pulse signal, and the real-time data's...
In the power system, it is necessary to real-time detect amplitude and phase of harmonic current in order to compensate for harmonic current. Therefore it is the key of seeking an algorithm by which harmonic current can be quickly and accurately detected in the process of active power filter(APF) compensating for harmonic current. The second generation wavelet algorithm(also called lifting algorithm)...
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