Coordinated Control Method for DFIG-Based Wind Farm to Provide Primary Frequency Regulation Service

被引:106
作者
Wang, Zhongguan [1 ]
Wu, Wenchuan [1 ]
机构
[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
基金
美国国家科学基金会;
关键词
Wind farm; DFIG; distributed newton method; kinetic energy; primary frequency support; POWER-SYSTEMS; TURBINE GENERATORS; INERTIAL RESPONSE; KINETIC-ENERGY; FLOW-CONTROL; SUPPORT; PARTICIPATION; OPTIMIZATION; CHALLENGES; STABILITY;
D O I
10.1109/TPWRS.2017.2755685
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
With the rapid growth of wind power penetration, system operators are required to enforce grid codes that implement frequency regulation of wind farms. This paper presents a distributed cooperation framework for a doubly fed induction generator based wind farm to participate in primary frequency regulation, including imitated inertia and droop characteristics similar to conventional plants. Compared with centralized schemes, the control efficiency is significantly improved. To realize fast distributed coordination and optimal power distribution among wind turbines (WTs), a distributed Newton method is developed, which only requires WTs to exchange limited information with their neighbors over a sparse communication network, and has a super-linear convergence rate. By introducing an index of state of energy, this method can adequately exploit the kinetic energy of all WTs without loss of security. The simulation results indicate that the method exhibits satisfying dynamic performance and reliability, and the system frequency can be stabilized faster when the wind farm controlled by the proposed method participates in frequency control.
引用
收藏
页码:2644 / 2659
页数:16
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