Hardware Design for a Power Quality Analyzer Solution Based on STM32 ARM+FPGA+AD (Part 1)

Hardware Design of the Power Quality Analysis System

3.1 Power Quality Analysis System Design Requirements

This system aims to achieve high-precision measurement of power quality. Based on national standards for power quality analysis instruments and an analysis of power quality analyzers on the market, the following design objectives have been set:

(1) Power quality parameter measurement accuracy:

1. RMS value: Voltage RMS ±0.2%, Current RMS ±0.5%;
2. Frequency: ±0.01Hz;
3. Harmonics: 2nd-50th order, accuracy: ±3%;
4. Frequency: ±0.01Hz;
5. Three-phase unbalance: Voltage unbalance ±0.2%, Current unbalance ±1%;

(2) Real-time display of power quality parameters, enabling data sharing and good human-machine interaction.

(3) Storage of power quality parameter data.

3.2 Power Quality Analysis System Hardware Solution Design

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