Inertia Provision and Estimation of PLL-Based DFIG Wind Turbines

被引：157

作者：

He, Wei ^{[1
]}

Yuan, Xiaoming ^{[1
]}

Hu, Jiabing ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Hubei, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2017年 / 32卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Doubly fed induction generator; inertia estimation; inertial response; phase-locked loop; wind power; FED INDUCTION GENERATORS;

D O I：

10.1109/TPWRS.2016.2556721

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents an alternative inertial control method for doubly fed induction generator (DFIG)-based wind turbines by directly adjusting the phase locked loop (PLL) response. The synthetic internal voltage vector of the wind turbine-driven DFIG is defined in the electromechanical timescale to present the dynamic properties. The phase angle motion equation is further deduced to depict the relationship between the contributed inertial response and the defined internal voltage. Based on the developed motion equation, the equivalent inertia is estimated and quantified, and further found to be significantly determined by the PLL parameters. Moreover, the effect of both PLL and active power control on the defined internal voltage dynamics is also described during the inertial response. Simulated results on a modified 3-machine, 9-node test system were conducted to validate the feasibility of the proposed inertial control method and the correctness of the developed inertial characteristics.

引用

页码：510 / 521

页数：12

共 26 条

[1] Contribution of DFIG-based wind farms to power system short-term frequency regulation [J].