| 一种基于电网对称故障下DFIG的改进矢量控制策略 |
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| 引用本文： | 李娜,宋婀娜. 一种基于电网对称故障下DFIG的改进矢量控制策略[J]. 工业仪表与自动化装置, 2014, 0(3): 7-10 |
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| 作者姓名： | 李娜 宋婀娜 |
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| 作者单位： | 黑龙江科技大学电气与控制工程学院,哈尔滨150022 |
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| 摘 要： | 提出了一种电网对称故障下DFIG的改进矢量控制策略。给出了同步速ω1旋转坐标系中DFIG风电机组的等效模型,据此设计出以d轴磁链定向的网侧、转子侧PWM变换器矢量控制方案,并对其进行改进,然后对改进后的策略进行仿真。仿真结果表明,改进后的控制策略,使系统具有更好的不间断运行能力。
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| 关 键 词： | 电网对称故障 DFIG 矢量控制 |
Improved vector control strategies of DFIG under symmetrical grid fault |
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| Affiliation: | LI Na, SONGE＆#39;nuo ( College of Electric ＆ Control Engineering, Heilongjiang University of Science ＆ Technology, Harbin 150022, China) |
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| Abstract: | An improved vector control strategies of DFIG under symmetrical grid fault is proposed in this paper .The equivalent model of DFIG wind turbines in synchronous speed ω1 coordinate system is given, thus design the network side , the rotor side PWM converter of directed d-axis flux with vector control program , and to improve it , then simulate the improved strategy .And its simulation results show that the improved control scheme makes the system better ability to run uninterrupted . |
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| Keywords: | symmetrical grid fault DFIG vector control |
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