Studies of Sub-Synchronous Oscillations in Large-Scale Wind Farm Integrated System

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Yue, Liu^1 ; Hang, Mend^2

Baoding Power Supply Company of State Grid Hebei Electric Power Company, Baoding

071003, China^1

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Source, Baoding

071003, China^2

关键词: Analysis method;    Doubly Fed Induction generators (DFIG);    Grid-connected operation;    Series compensation;    Sub-synchronous oscillations;    Sub-synchronous torsional interactions;    Subsynchronous control interactions (SSCI);    suppression measures;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/5/052075/pdf
DOI  :  10.1088/1755-1315/108/5/052075

来源: IOP

【 摘 要 】

With the rapid development and construction of large-scale wind farms and grid-connected operation, the series compensation wind power AC transmission is gradually becoming the main way of power usage and improvement of wind power availability and grid stability, but the integration of wind farm will change the SSO (Sub-Synchronous oscillation) damping characteristics of synchronous generator system. Regarding the above SSO problem caused by integration of large-scale wind farms, this paper focusing on doubly fed induction generator (DFIG) based wind farms, aim to summarize the SSO mechanism in large-scale wind power integrated system with series compensation, which can be classified as three types: sub-synchronous control interaction (SSCI), sub-synchronous torsional interaction (SSTI), sub-synchronous resonance (SSR). Then, SSO modelling and analysis methods are categorized and compared by its applicable areas. Furthermore, this paper summarizes the suppression measures of actual SSO projects based on different control objectives. Finally, the research prospect on this field is explored.