The invention discloses a dynamic power supply reconstruction self-adaptive sampling
power quality monitoring system, which comprises a dynamic power
supply management core, a self-adaptive analog-to-
digital conversion module, a
harmonic analysis accelerator, a dual-path interrupt
processing module and a data storage and communication module, and is characterized in that the dynamic power
supply management core is divided into three power supply domains and calculates a compensation coefficient; the adaptive analog-to-
digital conversion module counteracts interference by using coefficient adjustment
gain; the
harmonic analysis accelerator generates an overrun
signal through
processing; the dual-path interrupt
processing module receives the
signal to trigger an alarm; the data storage and communication module comprises an electrically erasable programmable read-only memory with a protection
storage area and associated with a fuse circuit. According to the invention, through combination of dynamic power
supply management and adaptive analog-to-
digital conversion, the sampling anti-interference capability and precision are improved;
harmonic analysis is processed and corrected through a professional window, so that the abnormal harmonic recognition accuracy is enhanced; and the data
storage area is provided with a protection and fuse circuit, so that the
data security and tamper-proof capability are enhanced, and the reliability and stability of
electric energy quality monitoring are integrally optimized.