| 双矢量PWM双馈风力发电系统并网控制 |
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| 引用本文： | 郑雪钦.双矢量PWM双馈风力发电系统并网控制[J].鹭江职业大学学报,2013(3):35-39. |
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| 作者姓名： | 郑雪钦 |
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| 作者单位： | 厦门理工学院电气工程与自动化学院,福建厦门361024 |
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| 基金项目： | 福建省科技厅科技重点项目（2012H0040）;厦门理工学院高层次人才引进项目（YKJ12020R） |
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| 摘 要： | 为了实现双馈风力发电系统无冲击并网,避免并网瞬间冲击电流对电网和发电系统的影响,在MT坐标系下建立系统的数学模型和仿真模型.网侧变换器采用电压电流双闭环控制;在机侧变换器控制中增加消除转子电压和电流交叉耦合的补偿项.仿真结果表明,系统并网过程动态响应快,对电网几乎无任何冲击,定子侧电流和电压稳态时均为正弦波,双矢量PWM双馈风力发电系统并网控制策略无须增加额外的并网装置就可以实现无冲击软并网,是一种较理想的并网方式.
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| 关 键 词： | 双馈风力发电系统 双矢量PWM 软并网 |
A Novel Cut-in Control Approach for DFIG Based on Double-Vector PWM |
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| ZHENG Xue-qin.A Novel Cut-in Control Approach for DFIG Based on Double-Vector PWM[J].Journal of Lujiang University,2013(3):35-39. |
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| Authors: | ZHENG Xue-qin |
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| Institution: | ZHENG Xue-qin ( School of Electrical Engineering ＆ Automation, Xiamen University of Technology, Xiamen 361024, China) |
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| Abstract: | In order to realize the flexible cutting-in of DFIG and avoid the impact ot me mstantau overshoot current on the grid and DFIG system, the mathematical and simulation models of DFIG, rotor- converter and grid-converter are developed. The double-loop control of current and voltage is introduced, and compensation used for the elimination of the current and voltage coupling. The simulation tests show a fast dynamic response almost free of overshoot current on grid, the stator current and voltage comprising sine wave, and zero-sequence harmonic currents. Being operable without need of extra cut-in devices, the double-vector PWM-based control strategy is a fairly ideal cut-in approach. |
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| Keywords: | DFIG double-vector PWM flexible cut-in |
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