ADI ADE7880带谐波检测多相多功能电表解决方案

ADI公司的ADE7880是带谐波检测高精度三相多功能电表集成电路,具有串行接口和三个灵活的脉冲输出.器件集成了二阶Sigma-Delta ADC,数字积分器,基准电路,以及需要实现有功(基波和谐波)和表观功率测量,rms计算以及基波有功功率和无功功率测量的所有信号处理,支持IEC 62053-21, IEC 62053-22, IEC 62053-23, EN 50470-1, EN 50470-3, ANSI C12.20和IEEE1459标准,支持 IEC 61000-4-7 Class I 和Class II 精度指标,工作电压2.4 V到3.7 V,主要用在能两计量系统,电源质量监测,太阳能逆变器,过程监测和保护设备.本文介绍了ADE7880主要特性,方框图,测试电路以及多种数据测量数据链和谐波计算图.
The ADE7880 is high accuracy, 3-phase electrical energy measurement IC with serial interfaces and three flexible pulse outputs. The ADE7880 device incorporates second-order sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), a digital integrator, reference circuitry, and all of the signal processing required to perform the total (fundamental and harmonic) active, and apparent energy measurements, rms calculations, as well as fundamental-only active and reactive energy measurements. In addition, the ADE7880 computes the rms of harmonics on the phase and neutral currents and on the phase voltages, together with the active, reactive and apparent powers, and the power factor and harmonic distortion on each harmonic for all phases. Total harmonic distortion plus noise (THD + N) is computed for all currents and voltages. A fixed function digital signal processor (DSP) executes this signal processing. The DSP program is stored in the internal ROM memory.
The ADE7880 device incorporates second-order sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), a digital integrator, reference circuitry, and all of the signal processing required to perform the total (fundamental and harmonic) active, and apparent energy measurements, rms calculations, as well as fundamental-only active and reactive energy measurements. In addition, the ADE7880 computes the rms of harmonics on the phase and neutral currents and on the phase voltages, togeth...