摘要
针对直流输电并网系统中反激式逆变器存在大量二倍于工频谐波分量等问题,提出了一种新型反激式逆变器解耦电路,从而减少了母线和直流侧二次谐波分量。通过主动控制功率解耦电路中开关管开断,研究解耦电容充电模式和放电模式的4个工作阶段,使得储能电容可以有效地依次放电。最终,通过仿真和实验结果一致可以稳定输出100 Hz和100 V电压,表明该解耦方法的有效性和合理性。
A new decoupling circuit of flyback inverters is proposed to reduce the second harmonic components of buses and DC side in view of the problems of large number of double harmonic components of power frequency in the grid-connected system of HVDC transmission. By actively controlling the switch break in power decoupling circuit,the four working stages of decoupling capacitor charging mode and discharge mode are studied,so that the energy storage capacitor can discharge in turn effectively. Finally,the output voltage of 100 Hz and 100 V can be stabilized by simulation and experiment results,which shows the effectiveness and rationality of the decoupling method.
作者
张冰
王亮
王小波
李莉
林祺蓉
付俊波
ZHANG Bing;WANG Liang;WANG Xiaobo;LI Li;LIN Qirong;FU Junbo(State Grid Shandong Power Supply Company,Ji’nan 250000,China;State Gird Shandong Electric Power Company Jinan Branch,Ji’nan 250022,China;NR Electric Co.,Ltd.,Nanjing 211102,China)
出处
《电子器件》
CAS
北大核心
2020年第2期285-290,共6页
Chinese Journal of Electron Devices
基金
国网山东省电力公司科技项目(2018A-023)。
关键词
直流输电
功率解耦
逆变器
实验平台
HVDC transmission
power decoupling
inverters
experimental platform
