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首页> 外文会议>Symposia on Electromagnetic and Electronic Engineering >Damping of torsional vibrations caused by electrical disturbances in a DFIG based wind turbine
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Damping of torsional vibrations caused by electrical disturbances in a DFIG based wind turbine

机译：基于DFIG的风力涡轮机中的电气干扰引起的扭转振动

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摘要

Torsional vibrations present in the drive train can produce large stresses on the components of the wind turbine. In this study a damping system accomplished by the decoupled power control system equipped with a torsional damper was developed to damp the vibrations. Low-pass filter (LPF) was employed by the torsional damper to extract the dynamics of the generator speed during the vibrations. After amplification and phase adjustment this information was used to generate a damping power. Various simulation cases were studied in Simulink to evaluate the proposed damping method. The drive train vibrations were excited by voltage sag at the point of common coupling. Results showed that the damper can increase the system damping and exhibited a good performance to damp both vibration frequencies of the drive train.
机译：传动系中存在的扭转振动可以在风力涡轮机的部件上产生大的应力。在该研究中，开发了配备有扭转阻尼器的解耦功率控制系统所完成的阻尼系统以抑制振动。扭转阻尼器采用低通滤波器（LPF）以在振动期间提取发电机速度的动态。放大和相位调整后，该信息用于产生阻尼功率。在Simulink中研究了各种模拟案例，以评估所提出的阻尼方法。通过在公共耦合点处通过电压凹凸激发传动系振动。结果表明，阻尼器可以增加系统阻尼，并表现出损坏传动系的振动频率的良好性能。

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