摘要
电网扰动发生装置因输出电压中丰富的谐波成分和接入被测设备的多样性,采用LC滤波器极易发生谐振。传统阻尼滤波器虽然可以抑制输出振荡,但滤波器的滤波效果较差,装置的输出电压上会出现明显的开关频率级的谐波。混合型阻尼滤波器采用了改进的电路结构,利用电阻与电容串联再与另一电容并联的方式,使滤波器拥有了适当的阻尼,可以有效抑制系统的谐振,同时还能满足装置的输出滤波性能。实验验证了混合型阻尼滤波器的有效性和突出优点。
The rich harmonic components in the output voltage of grid disturbance generator and the diversity of the equipment under test can easily lead to resonant with LC filter.The traditional damping filter can suppress the output resonance, but the filtering performance is bad, and the switching frequency harmonic appears at the output voltage of the device.Using an improved circuit with resistor and capacitor in series then with another capacitor in paraUel,the proposed hybrid damping filter can suppress the resonance effectively and satisfy the output filtering performance.The experiments verify the effectiveness of the proposed hybrid damping filter.
出处
《电力电子技术》
CSCD
北大核心
2015年第4期85-87,共3页
Power Electronics
基金
国家科技支撑计划(2015BAA07B01)~~
