摘要
谐波源是公害,产生的原因是什么,如何准确测量和排解是个老大难问题。经分析查证,系统谐波阻抗便是一个不可忽略的因素。因为谐波电压电流正是作用在其上,才能产生相反影响。那么谐波阻抗能否测定和利用,该文所研制的智能高次谐波试验装置,便解决了这样的双重问题。首先利用软硬件相结合手段,设计一个稳定的谐波源注入系统,再经相关仪器对谐波电压、电流进行测试和频谱分析,便可寻找到谐振点,计算出谐波阻抗,建立起数据库,对故障分析和消除谐波干扰提供可靠依据与技术指导。
Harmonic source is a nuisance,does the reason where？ how to accurately measure and resolve is a longstanding problem. Through analysis and verification,system harmonic impedance is a factor that cannot be ignored, because the harmonic voltage and current is acting on it,to produce opposite effects. Then the harmonic impedance can determination and use,we developed the intelligent harmonic test device,and solves the problem that a double. First using the combination of hardware and software design method,a stable source of harmonics injection system, the related instruments of harmonic voltage,current measurement and spectrum analysis,we can find resonance point, calculate the harmonic impedance,establish database,to the fault analysis and eliminate harmonic interference and provide a reliable basis and technical guidance.
出处
《自动化与仪表》
北大核心
2012年第11期15-18,共4页
Automation & Instrumentation
关键词
谐波干扰
系统阻抗
装置设计
测量分析
harmonic interference
impedance
equipment design
measurement and analysis
