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| 三相光伏发电系统瞬时电流控制及其孤岛检测技术 | |
| 引用本文： | 刘文华,焦阳,宋强,金一丁. 三相光伏发电系统瞬时电流控制及其孤岛检测技术[J]. 清华大学学报(自然科学版), 2011, 0(3): 345-350 |
| 作者姓名： | 刘文华 焦阳 宋强 金一丁 |
| 作者单位： | 清华大学电力系统及发电设备控制和仿真国家重点实验室; |
| 摘 要： | 以三相光伏并网系统为对象,研究了一种逆变器瞬时电流控制策略以及基于功率解耦控制和新型锁相环的孤岛检测方法.基于逆变器参数的瞬时电流控制作为内环控制器可以实现准确快速的电流跟踪,有功无功电流解耦控制作为外环控制器用来稳定逆变器直流电压稳定以及实现并网功率输出.还设计了一种基于无功-频率关系的锁相环,将该锁相频率作为正反馈... |
| 关 键 词： | 瞬时电流控制 孤岛检测 软件锁相环 无功功率扰动 |
Instantaneous current control and islanding detection for a three-phase grid connected photovoltaic generation system |
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| LIU Wenhua,JIAO Yang,SONG Qiang,JIN Yiding. Instantaneous current control and islanding detection for a three-phase grid connected photovoltaic generation system[J]. Journal of Tsinghua University(Science and Technology), 2011, 0(3): 345-350 | |
| Authors: | LIU Wenhua JIAO Yang SONG Qiang JIN Yiding |
| Affiliation: | LIU Wenhua,JIAO Yang,SONG Qiang,JIN Yiding(State Key Laboratory of Control and Simulation of Power System and Generation Equipments,Tsinghua University,Beijing 100084,China) |
| Abstract: | Instantaneous current control and islanding detection based on power decoupling and a phase lock loop(PLL) have been realized for a three-phase grid-connected photovoltaic(PV) generation system.The instantaneous current controller based on the inverter parameters is used as the inner control loop to achieve rapid and accurate current tracking.The active and reactive power decoupling controller is used to stabilize the direct current voltage as well as to control the power output.The islanding detection meth... |
| Keywords: | instantaneous current control islanding detection novel phase lock loop(PLL) reactive power drift |
| 本文献已被 CNKI 等数据库收录！ | |