IDT ZNRG2061太阳能电弧故障检测解决方案

IDT公司的ZNRG2061是用在太阳能光伏(PV)系统的电弧故障检测智能系统级芯片(SoC),是完整的DC电弧故障检测解决方案,采用先进的傅里叶变换(FFT)分析,其算法连续监测光伏电压DC电流,观测任何的电流波动,和UL 1699B设计兼容,工作电压6V-24V,工作温度-40°C- 85°C,主要用在PV太阳能逆变器,汇流箱,DC优化器和电弧故障电路中断器(AFCI).本文介绍了ZNRG2061主要特性,典型应用框图,主应用电路,以及ZNRG2061评估板主要特性,电路图,材料清单和PCB设计图.
The ZNRG2061 is a smart system-on-chip for arc-fault detectionin photovoltaic (PV) solar power systems. Its trainable algorithmdelivers safe and reliable signaling of arc-faults while toleratingtypical noise patterns present in solar power systems.
The algorithm continuously monitors the photovoltaic DC currentand observes any current fluctuation, ultimately performing a fastFourier transform (FFT) analysis. The frequency spectrum iscompared to a previously memorized baseline. If the signature ofan arc-fault is detected, a failure event is generated. To preventnuisance tripping, the baseline and other criteria are determinedwith a training procedure. Training is initiated via the graphicaluser interface (GUI) configuration software.
In addition to a current transformer, which also acts as galvanicisolator from the primary high voltage, the ZNRG2061 system-onchiprequires only a few external components. It contains all necessarydata acquisition, signal conditioning, and DSP functions toprovide reliable arc-fault signaling.
Self-diagnosis is performed continuously, ensuring that the deviceoperates safely at all times.To simplify design-in and accelerate future systems UL listings,the ZNRG2061 is designed in compliance with UL 1699B andrecognized according to UL 1998.
ZNRG2061典型应用:
Integrated arc-fault detection in
 PV solar power inverters
 Combiner boxes
 DC optimizers
 Stand-alone arc-fault circuit interrupters (AFCI)
Physical Characteristics
 Operating temperatu...