| LCL滤波三电平并网逆变器有源阻尼控制 |
| |
| 引用本文： | 刘伟增,刘永奎,郭磊.LCL滤波三电平并网逆变器有源阻尼控制[J].电力电子技术,2012,46(8):6-8. |
| |
| 作者姓名： | 刘伟增 刘永奎 郭磊 |
| |
| 作者单位： | 1. 西安交通大学,陕西西安,710049
2. 特变电工西安电气科技有限公司,陕西西安,710065 |
| |
| 摘 要： | 针对LCL滤波器在三电平光伏并网逆变器应用中的谐振和相位偏差问题,研究了基于电压定向的虚拟电阻有源阻尼控制策略,提出通过反馈电容支路电流消除并网电流与电网电压相位差的相位补偿方法。实验结果表明,该控制策略不仅能有效抑制电流谐振,而且能保证三电平并网逆变器在单位功率因数状态运行。
|
| 关 键 词： | 逆变器 三电平 有源阻尼 相位补偿 |
Active Damping for a LCL Filter Grid-connected Inverter Based on Three-level Topology |
| |
| LIU Wei-zeng
,
LIU Yong-kui
,
GUO Lei.Active Damping for a LCL Filter Grid-connected Inverter Based on Three-level Topology[J].Power Electronics,2012,46(8):6-8. |
| |
| Authors: | LIU Wei-zeng LIU Yong-kui GUO Lei |
| |
| Affiliation: | 1.Xi’an Jiaotong University,Xi’an 710049,China) |
| |
| Abstract: | Aiming at the resonance and phase deviation of LCL filter in three-level PV grid-connected inverter application, the virtual resistance active damping control strategy is researched based on voltage directional control and the phase compensation method is proposed via removing grid-connected current and power grid voltage phase deviation by using feedback capacitor.Experimental result shows that the control strategy effectively suppresses current resonance and guarantees the running of three-level grid-connected inverter unity power factor. |
| |
| Keywords: | inverter three-level active damping phase compensation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
