摘要
新能源光伏并网发电需要将直流电逆变为交流电,然后输送到电网上。并网逆变器由于本身工作特性含有大量的谐波,因而滤波器的设计对于改善电能质量尤为重要。在建立三相并网逆变器数学模型的基础上,给出了LCL滤波器的设计方法,分析并比较其与单L滤波器和LC滤波器的效果,最后通过实验验证了设计。
The new energy of photovoltaic grid-connectea generauon neeuo , 6 alternate current, and then transports to power line. However, because the output alternate current of grid-connected inverter because of its special working performance produces the higher harmonics, the design of filter for improving electric power quality is very importance. This paper constructs the mathematics model of three phase grid-connected inverter, shows the design method of the LCL filter and compares the effect of the LCL filter with L filter and the LC filter. Finally the theory is verified by the experimental results.
出处
《船电技术》
2016年第11期67-71,共5页
Marine Electric & Electronic Engineering
