Multi-loop high-speed switching sampling method and device for power system
The invention discloses an electric power system multi-loop high-speed switching sampling method and an electric power monitoring device, and relates to the field of electric power system sampling and monitoring, and the method comprises the following steps: carrying out the phase-locked frequency m...
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| creator | LIU LINGYUN WANG SHUCHAO ZHANG QISHUN SUN ZHIYIN YUAN ZHAORAN SHEN XINHAO SUI RUIZHEN CHO, WOOK-JIN ZHANG XINHONG HAN ZHANJIANG |
| description | The invention discloses an electric power system multi-loop high-speed switching sampling method and an electric power monitoring device, and relates to the field of electric power system sampling and monitoring, and the method comprises the following steps: carrying out the phase-locked frequency multiplication of a fundamental wave signal according to the number of loops to be monitored and the number of sampling points of a fundamental wave period, and obtaining a sampling frequency signal; controlling the multi-path change-over switch to switch and gate one to-be-tested loop to be input into the AD sampling chip for sampling; meanwhile, at the middle moment of two times of switching, AD sampling data are latched; the core processor reads the cache, calculates an independent electric quantity parameter of each loop, corrects a sampling introduction phase angle error of each loop, and calculates a comprehensive electric quantity parameter of all loops; according to the invention, high-speed switching sampli |
| format | Patent |
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| language | chi ; eng |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| title | Multi-loop high-speed switching sampling method and device for power system |
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