当前位置: X-MOL 学术Electr. Power Syst. Res. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Sensorless real-time reduced order model-based adaptive maximum power tracking pitch controller for grid connected wind turbines
Electric Power Systems Research ( IF 3.9 ) Pub Date : 2021-02-26 , DOI: 10.1016/j.epsr.2021.107115
Abilash Thakallapelli , Sudipta Ghosh , Sukumar Kamalasadan

To overcome the mechanical stress and damage caused by the high wind speed and grid transient on the wind turbine (WT) and to ensure the smooth operation of WT, a sensorless maximum power tracking (MPT) pitch controller for grid integrated WT is proposed in this paper. The advantages of the proposed controller are: a) reduced rotor speed oscillations, b) reduced transients in Point of Common Coupling (PCC) voltage, and c) controlled output power of WT without exceeding its thermal limits. The controller is validated on the WT integrated into the frequency-dependent reduced order model (FDROM) of the power grid. Another advantage is that, as the reference speed for the controller is estimated using FDROM, actual wind speed measurements are not required in this approach. To ensure smooth operation, and to limit the aerodynamic power and speed within the normal operating range, the difference between the actual and reference speed of the generator is used as the input to the controller. The architecture is validated using a real-time digital simulator (RTDS) on WT integrated two-area and IEEE-39 bus power system models. The simulation results show that the proposed controller is more effective than the conventional methods during changing system operating conditions.



中文翻译:

基于无传感器实时降阶模型的自适应最大功率跟踪桨距控制器

为了克服风力涡轮机(WT)的高风速和电网瞬变引起的机械应力和损坏,并确保WT的平稳运行,本文提出了一种用于电网集成WT的无传感器最大功率跟踪(MPT)变桨控制器纸。所提出的控制器的优点是:a)减少了转子速度的振荡,b)减少了公共耦合点(PCC)电压的瞬变,以及c)WT的输出功率得到控制而没有超过其热极限。在集成到电网的频率相关降阶模型(FDROM)中的WT上验证控制器。另一个优点是,由于使用FDROM估算了控制器的参考速度,因此该方法不需要实际的风速测量。为确保操作顺畅,为了将空气动力和速度限制在正常工作范围内,发电机的实际速度与参考速度之间的差将用作控制器的输入。该架构在WT集成的两个区域和IEEE-39总线电源系统模型上使用实时数字仿真器(RTDS)进行了验证。仿真结果表明,所提出的控制器在改变系统运行条件下比传统方法更有效。

更新日期:2021-02-26
down
wechat
bug