| 直驱风机HVRT两种直流侧卸荷方法对比仿真研究 |
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| 引用本文： | 李朋宇.直驱风机HVRT两种直流侧卸荷方法对比仿真研究[J].电测与仪表,2018,55(22):7-12. |
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| 作者姓名： | 李朋宇 |
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| 作者单位： | 新疆大学电气工程学院 |
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| 基金项目： | 新疆维吾尔自治区自然科学基金资助项目(2016D01C054) |
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| 摘 要： | 近些年来，国内外学者对风电机组低电压穿越进行了研究，但对于并网风电机组高电压穿越研究较少。为提高直驱风电机组高电压穿越能力，以2.5MW直驱风电机组为研究对象。本文首先对比分析了国外的风电机组高电压穿越标准，然后提出对网侧变流器采用稳态时单位功率因数控制、暂态时提供无功的控制策略。最后，在Matlab/Simulink中分别建立了斩波电路和超级电容储能系统两种直流侧卸荷电路模型，在相同工况下，仿真分析了两种卸荷电路对机组暂态特性的影响。研究结果表明：两种卸荷方式均能实现直驱风电机组高电压穿越，相比斩波电路，超级电容储能系统不仅能够提升风电机组的高电压穿越能力，而且能够改善机组故障穿越结束后机组稳定运行特性。
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| 关 键 词： | 直驱风电机组 高电压穿越 控制 超级电容 |
| 收稿时间： | 2017/10/16 0:00:00 |
| 修稿时间： | 2017/10/16 0:00:00 |
Comparative analysis of PMSG HVRT on two different chopper |
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| lipengyu.Comparative analysis of PMSG HVRT on two different chopper[J].Electrical Measurement & Instrumentation,2018,55(22):7-12. |
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| Authors: | lipengyu |
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| Affiliation: | School of Electric Engineering, Xinjing University, |
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| Abstract: | In order to improve permanent magnet synchronous generator (PMSG) high voltage ride through (HVRT) capability,a control strategy of permanent magnet synchronous generator of 2.5MW based on the unity power factor control is applied during steady and the control of reactive power prioritized is applied during grid transient fault.Based on the voltage swell transient characteristic of PMSG ,the model of chopper and super capacitor energy storage system were set up in Matlab/Simulink.The two different transient characteristic were simulated and compared. The result shown that,the two different circuits can be implemented when grid voltage swell occurs and using the super capacitor energy storage system can not only enhance the HVRT capability of PMSG ,but also improve the operation stability after HVRT. |
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| Keywords: | permanent magnet synchronous generator(PMSG) high voltage ride through(HVRT) control super capacitor |
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