High precision voltage transient event detection and wave-recording method
A transient event, high-precision technology, applied in the direction of measuring current/voltage, measuring devices, measuring electrical variables, etc., can solve the problem that the duration and voltage rise and fall cannot be accurately calculated and detected, and it is difficult to meet the requirements of power system fault analysis, etc. problem, to achieve the effect of meeting the accuracy requirements, balancing the amount of calculation, and improving the detection accuracy
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[0012] The present invention will be further described in detail below with reference to the drawings.
[0013] The hardware platform required to implement the method of the present invention includes a digital signal processing (DSP) board, a micro control (MCU) board, and a power supply board. The DSP board mainly includes instrument voltage and current transformers, A / D converters, and a digital signal processor (DSP). MCU board mainly includes microcontroller, hard disk memory, etc. The HPI data bus connection is used between the DSP board and the MCU board, and the MCU can access the data storage space on the DSP board by itself through the DSP data bus. The DSP detects voltage transient events through the following detection and calculation methods, and reports the event to the MCU through the event linked list. The MCU records the wave according to the wave recording information in the event record and stores the data in the hard disk memory.
[0014] The specific implement...
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