Power factor sampling method and power factor compensation equipment
The invention relates to a power factor sampling method and power factor compensation equipment, which aims at solving the problem of larger deviation on power factor parameter detection when a larger higher harmonic component exists in a power grid. The power factor compensation equipment comprises...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
19.10.2011
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a power factor sampling method and power factor compensation equipment, which aims at solving the problem of larger deviation on power factor parameter detection when a larger higher harmonic component exists in a power grid. The power factor compensation equipment comprises a microprocessor as well as a signal sampling circuit, a display circuit and a drive circuit connected with the microprocessor. The invention is not interfered by harmonic waves, does not need the support of a voltage synchronizing signal, can work stably, can additionally obtain the harmonic components of voltages and currents without complex Fourier calculation, and has extremely simple hardware circuits and a low cost. |
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Bibliography: | Application Number: CN20101149748 |