Sub-Synchronous Control Interaction in Grid-Forming VSCs with Droop Control

Large-scale wind turbine generators with power electronic converters that operate near series compensated transmission lines are susceptible to un-damped sub-synchronous oscillations. This sub-synchronous oscillation is called Sub-synchronous Control Interaction (SSCI). Based on PSCAD / EMTDC simulation platform the establishment of Double Fed Induction Generator (DFIG) equivalent inverter controlled sources and network model, and verify the correctness of the equivalent model. Analysis the impact of series compensation and rotor-side converter PI parameters characteristic of the SSCI based on test signal method and time-domain simulation method. The results show that increasing the degree of series compensation , inner gain constant increases and inner integral time decreases will help increase SSCI, outer ring of PI parameters has little effect on the SSCI .

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Ercot experience screening for Sub-Synchronous Control Interaction in the vicinity of series capacitor banks

2012 IEEE Power and Energy Society General Meeting ◽

10.1109/pesgm.2012.6345409 ◽

2012 ◽

Cited By ~ 25

Author(s):

J. Adams ◽

V. A. Pappu ◽

A. Dixit

Keyword(s):

Synchronous Control ◽

Capacitor Banks ◽

Control Interaction ◽

Series Capacitor

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H∞ current damping control of DFIG based wind farm for sub-synchronous control interaction mitigation

International Journal of Electrical Power & Energy Systems ◽

10.1016/j.ijepes.2017.12.003 ◽

2018 ◽

Vol 98 ◽

pp. 509-519 ◽

Cited By ~ 13

Author(s):

Yun Wang ◽

Qiuwei Wu ◽

Rong Yang ◽

Guoqing Tao ◽

Zhaoxi Liu

Keyword(s):

Wind Farm ◽

Synchronous Control ◽

Damping Control ◽

Control Interaction

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Study on Sub-Synchronous Control Interaction (SSCI) of Wind-Power Generator

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.953-954.518 ◽

2014 ◽

Vol 953-954 ◽

pp. 518-521 ◽

Cited By ~ 1

Author(s):

Jin Liu ◽

Shu Qiang Zhao

Keyword(s):

Wind Power ◽

Wind Turbines ◽

Transmission Lines ◽

Large Scale ◽

Wind Farm ◽

Rapid Development ◽

Synchronous Oscillation ◽

Synchronous Control ◽

Wind Power Generator ◽

Control Interaction

Large-scale wind turbine generators with power electronic converters that operate near series compensated transmission lines are susceptible to un-damped sub-synchronous oscillations. This sub-synchronous oscillation is called Sub-synchronous Control Interaction (SSCI). With the rapid development of wind power technology, SSCI emerges as a new sub-synchronous oscillation phenomenon. The first SSCI event occurred for a wind farm in America in2009, which resulted in damage to the wind turbines. The origin of SSCI is presented and its characteristics of different types of wind turbines are summarized. Then the research prospect on this field is explored.

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