摘要
针对部分并联补偿电容器在运行过程中发出刺耳噪声,严重影响变电站安全运行的问题,从电容器结构出发,应用电场力和电场力做功与电容器储能相等的关系,推导了电场力与谐波电压数学模型。通过实测谐波电压数据,进一步验证了分析模型的正确性,即谐波电压产生的电场力振动频率在人耳感知最敏感的区域,并给出了抑制噪声的措施。
The harsh noise of part parallel compensation capacitor seriously affect the safe operation of substation during operation.In order to solve this problem,starting from the capacitor structure,utilizes the electric field forces and the relation that the work being done by electric field forces equal with stored energies of capacitors,it derived a mathematical model between electric field forces and harmonic voltage.It proved the analysis model＇s validity that the electric field force vibration frequency produced by harmonic voltage is the most sensitive area of ear perception via using the measured harmonic voltage data.So introduces some noise suppression measures.
出处
《煤矿机电》
2011年第5期25-28,共4页
Colliery Mechanical & Electrical Technology
关键词
补偿电容器
噪声
电场力
谐波
compensation capacitor
noise
electric field force
harmonic
