| 双馈风力发电机故障穿越改进控制策略 |
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| 引用本文： | 卜思齐,杜文娟,王海风.双馈风力发电机故障穿越改进控制策略[J].电力科学与技术学报,2012,27(1):33-39. |
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| 作者姓名： | 卜思齐 杜文娟 王海风 |
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| 作者单位： | 贝尔法斯特女王大学电气工程系,英国贝尔法斯特BT7 1NN |
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| 基金项目： | 英国工程物理科学基金会资助 |
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| 摘 要： | 提出一种基于并网双馈风力发电机的多机电力系统中DFIG功角概念,揭示所定义的功角与DFIG端电压跌落的关系;并提出改进的磁通幅值相角控制即IFMAC策略.相比于磁通幅值相角控制(FMAC),所提控制方案可以在系统故障时期更好地支撑DFIG的端电压.大规模电力系统计算实例验证了IFMAC的有效性及其相比于FMAC的优越性...
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| 关 键 词： | 双馈电机 故障穿越 磁通幅值相角控制 风力发电 |
An improved control strategy with ride-through capability for doubly fed induction generators |
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| BU Si-qi
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DU Wen-juan
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WANG Hai-feng.An improved control strategy with ride-through capability for doubly fed induction generators[J].JOurnal of Electric Power Science And Technology,2012,27(1):33-39. |
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| Authors: | BU Si-qi DU Wen-juan WANG Hai-feng |
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| Affiliation: | (Electric Power and Energy Research Cluster,The Queen＇s University of Belfast,Belfast BT7 1NN,UK) |
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| Abstract: | This paper proposed an improved flux magnitude and angle control（IFMAC） scheme for grid-connected doubly fed induction generators（DFIGs） on the basis of concept and control of power angle of DFIG.The proposed scheme can provide better support to the terminal voltage of DFIGs during the fault period than the flux magnitude and angle control（FMAC） scheme.The power angle of DFIGs in a multi-machine power system was defined firstly and then the relation between the defined power angle and voltage dip of DFIGs was analyzed.Based on the analysis,the Improved FMAC（IFMAC） was developed.Finally,an example of 16-machine 5-area power system with 2 grid-connected DFIGs is presented to demonstrate and validate the effectiveness of the proposed IFMAC and to compare it with FMAC.Simulation results show that it can significantly enhance the fault ride-through（FRT） capability of grid-connected DFIGs. |
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| Keywords: | doubly fed induction generators（DFIGs） fault ride-through（FRT） flux magnitude and angle control（FMAC） wind power generation |
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