Smart Loads for Improving the Fault-Ride-Through Capability of Fixed-Speed Wind Generators in Microgrids

被引：8
|
作者：
Yan, Shuo [1 ]
Wang, Ming-Hao [1 ]
Chen, Jie [1 ]
Hui, S. Y. [1 ,2 ]
机构：
[1] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Peoples R China
[2] Imperial Coll London, London SW7 2AZ, England
来源：
IEEE TRANSACTIONS ON SMART GRID | 2019年 / 10卷 / 01期
关键词：
Electric spring; fault-ride-through; induction generator; ELECTRIC SPRINGS; VOLTAGE CONTROL; FARMS; STATCOM; TURBINES;
D O I：
10.1109/TSG.2017.2749622
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：
In this paper, the smart load formed by the backto-back electric springs (ES-B2B) is evaluated for improving the fault-ride through (FRT) capability of the wind turbine generation system with fixed speed induction generator (FSIG) for the first time. The characteristic of the ES-B2B in providing fast reactive power compensation is found to be highly useful in recovering the rotor speed of FSIGs when a fault event occurs. This is a new function in addition to the original function of stabilizing mains voltage against renewable generations. A simple and yet effective controller is then developed for the ES-B2B in order to ensure fast response. The ES-B2B-based smart load and the proposed control have been tested in MATLAB/Simulink and real-time digital simulator to evaluate: 1) the reactive power compensation capability of ES-B2B; 2) the effectiveness of the proposed control of ES-B2B for FRT support; and 3) the comparison of distributed ES-B2Bs with centralized STATCOM in providing distributed FRT support in different grid topologies.
引用
收藏
页码：661 / 669
页数：9
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