前端调速型风电机组动力学建模与运行特性研究

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (5) : 18-24.

论文

尹文良，芮晓明

作者信息 +

Dynamic modeling and operation performance of wind turbine set based on its front-end speed regulating mechanism

YIN Wenliang,RUI Xiaoming

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文章历史 +

摘要

基于先进的机械调速与伺服控制技术，提出了一种带有发电机前端无极调速器的混合传动风电机组方案，以实现变速恒频。利用集中质量与拉格朗日方法，建立该机组传动系统动力学模型。并利用动力学方程建立1.5 MW前端调速型风电机组的Simulink仿真，实现对机组调速精度、功率消耗、电流谐波与低电压穿越能力等运行特性的深入研究。结果表明：在不同的风速条件下，所提机组不仅可以在调速功率消耗较小的情况下输出恒频电能（占比小于输出功率的15.25%），还可以有效抑制电流谐波污染，改善机组低电压穿越能力。理论分析与仿真研究验证了该机组的实用性和优越性。

Abstract

Based on advanced mechanical speed regulating and servo control techniques, a hybrid-drive wind turbine (WT) set with a generator front-end nonpolar speed regulator was proposed to realize its working mode of variable-speed constant-frequency (VSCF).The dynamic model for the WT’s transmission system was established using the lumped mass method and Lagrange’s equations.Based on the derived dynamic equations, The Simulink simulation model for a 1.5 MV WT set with front-end speed-regulating was built to deeply study its operation characteristics including speed-regulating accuracy, power consumption, current harmonic wave pollution and low-voltage ride-through (LVRT) capability.The results showed that under condition of different wind speeds, the proposed WT set can not only output constant-frequency electric power with smaller power dissipation (less than 15.25% of output power) of speed regulating, but also effectively suppress current harmonic wave pollution and improve the WT set’s LVRT capability; the practicability and superiority of the proposed WT set are verified with theoretical analysis and simulation study.

导出引用

尹文良，芮晓明. 前端调速型风电机组动力学建模与运行特性研究[J]. 振动与冲击, 2020, 39(5): 18-24

YIN Wenliang,RUI Xiaoming. Dynamic modeling and operation performance of wind turbine set based on its front-end speed regulating mechanism[J]. Journal of Vibration and Shock, 2020, 39(5): 18-24

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