Application of UPFC to mitigate SSR in series‐compensated wind farms

Autor: Bin Zheng, Du Ning, Peipeng Zhou, Jiang Hongli, Song Ruihua, Ya-nan Han, Daye Yang
Rok vydání: 2018
Předmět:
series-compensated system
grid-connected wind farms
power generation control
series transformer−converter
series-compensated lines
Computer science
time-domain simulation
wind power plants
SSR characteristics
Energy Engineering and Power Technology
effective functionalities
flexible AC transmission systems
subsynchronous damping controllers
wind farm integrations
system operation security
power transmission control
power system stability
dq decoupling control
Control theory
wind turbines
series-compensated wind farms
subsynchronous resonance
damping
Series (mathematics)
simulation model
service reliability
UPFC'
General Engineering
mechanical facilities
power grids
time-domain analysis
power convertors
control strategy
complex torque coefficient method
lcsh:TA1-2040
load flow control
system resonance characteristics
lcsh:Engineering (General). Civil engineering (General)
Software
unified power flow controller
Zdroj: The Journal of Engineering (2019)
ISSN: 2051-3305
DOI: 10.1049/joe.2018.8533
Popis: Flexible AC transmission systems have shown effective functionalities in promoting the system operation security and service reliability. Facing with series-compensated lines, subsynchronous resonance (SSR) may jeopardise the stability and mechanical facilities. The control strategy and simulation model of a unified power flow controller (UPFC) based on the dq decoupling control are deduced and constructed. Considering the impacts of grid-connected wind farms, SSR characteristics of the series-compensated system with UPFC are studied by the complex torque coefficient method and time-domain simulation. The results verify the capability of UPFC in attenuating SSR in wind farm integrations by utilising subsynchronous damping controllers coordinated with UPFC's main controllers. It also suggests that the shunt transformer−converter has a slight effect on SSR, whereas the series transformer−converter affects the system resonance characteristics significantly. Simulations are carried out on a typical power system model integrated with wind turbines.
Databáze: OpenAIRE
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