Passive Filter Design Based on BSPWM-Control Inverter and its Parameter Selection
To make the BSPWM-control inverter be of a good sine wave output, its output voltage harmonic is analyzed. It shows that the strongest harmonic is N order, and its amplitude is greater than fundamental under M<0.9. In order to eliminate furthest the high frequency harmonics and retain fundamental wave as much as possible, which will minimize the THD of output voltage, a passive filter circuit was put forward, and an estimating method for the filter component parameter was given. The theoretical analyses and calculated shows that the L-C filter will be little or no attenuation for fundamental wave and be a great extent attenuation for high. The loss of the filter component gives influence so little as to be ignored, and the utilization coefficient can be maximized. The example shows that the THD is Tar less than 1％, and the filtration network is superior and efficacious.
BSPWM inverter passive filter circuit THD eliminating harmonic
Chen Gang Ma Yu-Fei
Faculty of Information Science and Engineering Shenyang Ligong University Shenyang, China
国际会议
成都
英文
1242-1245
2010-12-17（万方平台首次上网日期，不代表论文的发表时间）