Converter three-port electromagnetic interference model parameter extraction method
A technology of electromagnetic interference and model parameters, applied in the direction of electrical digital data processing, measuring current/voltage, instruments, etc., can solve the problems of inter-spectrum interference, increase of spectrum correction error, inapplicable dense spectrum correction, etc., and achieve simple test process, High amplitude and phase accuracy, the effect of improving the accuracy of spectrum analysis
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[0047] In order to describe the present invention in more detail, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0048] The three-port electromagnetic interference model parameter extraction method of the converter of the present invention determines the parameter calculation method of the equivalent interference source and the equivalent internal resistance of the port according to the topological structure of the three-port model, and changes the impedance value of the test resistance by designing an external test circuit , Test to obtain multiple sets of different port voltage and current time-domain data, and then use all-phase FFT and time-shift phase difference compensation method to Fourier transform the time-domain data to obtain frequency domain amplitude and phase information, and finally use mathematical tools to simulate To obtain the parameter amplitude informati...
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