Improved Parameter Identification and Control Strategy of Pitch Motor in Wind Turbine System

被引：0

作者：

Xie, Xiangjie ^{[1
]}

Li, Hui ^{[1
]}

Xia, Guisen ^{[2
]}

Yao, Ran ^{[1
]}

Chai, Zhaosen ^{[1
]}

Liu, Xingzhong ^{[2
]}

机构：

[1] Chongqing Univ, Sch Elect Engn, Chongqing, Peoples R China

[2] Chongqing KeKaiQianWei Wind Power Equipment Co Lt, Chongqing, Peoples R China

来源：

2019 IEEE INTERNATIONAL SYMPOSIUM ON PREDICTIVE CONTROL OF ELECTRICAL DRIVES AND POWER ELECTRONICS (PRECEDE 2019) | 2019年

基金：

中国国家自然科学基金;

关键词：

wind turbine system; pitch motor; vector control; parameter identification; model reference adaptive system;

D O I：

10.1109/precede.2019.8753351

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Variable load and rotor time constant T-r in pitch motor may lead to low robustness of pitch control system. Therefore, an improved T-r identification method and control strategy were presented. Firstly, based on flux estimator in pitch control system, the influences of motor parameters on flux were analyzed using Frequency Response Functions (FRF), which could derive the dominant parameter. Secondly, based on the Model Reference Adaptive System (MRAS), the initial value of identification was treated as the compensation term to weaken the effect of variable motor speeds and load torques, then the pitch control strategy with this improved MRAS-based identification for T-r in wind turbine system were developed. Finally, simulation and prototype test of pitch motor control system were carried out. The results have validated that T-r has a prominent impact on the pitch control system, the improved identification model and control strategy considering online identification would be more robust.

引用

页码：154 / 159

页数：6

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