| 不平衡电网电压下并网型双馈感应发电机励磁控制策略 |
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| 引用本文： | 赵阳,邹旭东,丁稳房.不平衡电网电压下并网型双馈感应发电机励磁控制策略[J].武汉大学学报(工学版),2009,42(1). |
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| 作者姓名： | 赵阳 邹旭东 丁稳房 |
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| 作者单位： | 1. 湖北工业大学电气与电子工程学院,湖北,武汉,430068
2. 华中科技大学电气与电子工程学院,湖北,武汉,430074 |
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| 摘 要： | 通过坐标变换推导出双馈感应发电机在正、负序坐标系下的电压方程和磁链方程,建立了正、负序坐标系下基于定子正、负序磁链定向的并网型双馈感应发电机数学模型.分别给出负序控制系统4类不同控制目标时转子负序电流指令值,得到适应于电网电压不平衡的双馈感应发电机在正、负序坐标下的励磁矢量控制策略.
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| 关 键 词： | 双馈感应发电机 励磁控制策略 不平衡电压 定子磁链定向 |
Excitation control strategy of grid-connecting DFIG under unbalanced grid voltage |
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| ZHAO Yang,ZOU Xudong,DING Wenfang.Excitation control strategy of grid-connecting DFIG under unbalanced grid voltage[J].Engineering Journal of Wuhan University,2009,42(1). |
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| Authors: | ZHAO Yang ZOU Xudong DING Wenfang |
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| Abstract: | The voltage and flux equations of the doubly fed induction generator(DFIG) under the positive and negative rotary coordinates are deduced by using the coordinate conversion matrixes.By orienting the positive and negative components of stator flux at the same time,a mathematical model of grid-connecting DFIG under the positive and negative rotary coordinates is built.The control targets of negative control system are classified into four kinds;and a DFIG exctitation vector control strategy suitable for the condition of unbalanced grid voltage is put forward. |
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| Keywords: | doubly fed induction generator(DFIG) excitation control strategy unbalanced grid voltage stator flux oriented |
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