Digital standard source based on precise time control
A technology of precise time and standard source, applied in the field of digital standard source, it can solve the problems such as the inability to precisely control the timing of the sending frame sequence, the inability to simulate the standard digital power source, and the inability to truly simulate the output of the merging unit of the smart substation, so as to eliminate the accuracy drift. Effect
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[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] Such as figure 1 As shown, a digital standard source based on precise time control includes a man-machine interface module, a signal processing and system control module, a digital waveform sequence storage module, a precise time control and protocol conversion module, and an output interface module.
[0017] The human-machine interface module adopts the LX-801A industrial computer of Stech, and uses the capacitive touch screen of 800*600 to complete the human-computer interaction, set the amplitude, frequency, phase of the output signal and the sampling rate of the analog merging unit, and display the waveform, etc. Features.
[0018] The digital waveform sequence storage module uses a 64MB SDRAM chip MT48LC32M16A2TG for storing the digital waveform data of the three-phase voltage and current generated by the signal processing and system control module.
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