Primary Frequency Reserve Providing Strategy of Doubly-Fed Induction Generator Wind Generation Using Rotor Inertia Characteristics

被引:0
|
作者
Hwang, Min [1 ,2 ]
Kook, Kyung-Soo [2 ]
机构
[1] Korea Elect Safety Corp, Elect Safety Res Inst, Wonju 55365, South Korea
[2] Jeonbuk Natl Univ, Dept Elect Engn, Jeonju 54896, South Korea
来源
IEEE ACCESS | 2024年 / 12卷
关键词
Wind speed; Frequency control; Rotors; Power grids; Voltage control; Reliability; Wind energy; Wind power generation; primary frequency reserve; de-loaded control; doubly-fed induction generator; wind power; ENERGY; SYSTEM; SUPPORT; SPEED;
D O I
10.1109/ACCESS.2024.3432829
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
For power grids with a high penetration level of wind power generation, stochastic wind speed variation adversely affects the frequency stability. A variable-speed wind turbine generator would deloads its output by shifting the power operating point to provide frequency response. Because the wind speed variation directly affects the calculation of the operating point, difficulties arise in securing a reliable amount of the frequency response. This paper proposes a control scheme of a doubly fed induction generator (DFIG)-based wind generation providing the primary frequency reserve (PFR), which can improve its reliability and flexibility even with a continuously varying wind speed. To achieve these objectives, the proposed scheme employs a de-loaded operation control loop associated with the rotational inertia characteristics of the DFIG. In addition, a static gain-based droop control loop is employed to release the required amount of active power from the system operator. In the proposed scheme, the optimal operating point for de-loaded operation varies more smoothly than it does in a conventional scheme by using the rotor inertia characteristics. The performance of the proposed control scheme is demonstrated using an EMTP-RV simulator under various wind speeds. The simulation results indicate that the proposed scheme significantly improves the frequency support capability of the DFIG in both the process of securing and providing the PFR.
引用
收藏
页码:124128 / 124140
页数:13
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