شماره ركورد كنفرانس :
5060
عنوان مقاله :
Low Voltage Ride Through Enhancement in PMSG-based Wind Turbines using De-loading Droop
Author/Authors :
،Mojtaba Nasiri Electrical Engineering Islamic Azad University Abhar branch Abhar, Iran , Behdad، Faridpak Electrical and Computer Engineering Faculty University of Tabriz Tabriz, Iran , Meisam، Farrokhifar Center for Energy Science and Technology Skolkovo Institute of Science and Technology (Skoltech) Moscow, Russia
كليدواژه :
Braking chopper (BC) , De-loading droop , Low voltage ride-through (LVRT) , Permanent magnet synchronous generator (PMSG) , Wind turbine
عنوان كنفرانس :
11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
The main challenge for wind turbines is the grid
voltage sag. Hence, the grid codes (GCs) define the tasks of
both wind turbine and grid in different conditions e.g. grid
voltage sag. The GCs force the wind turbine to remain connected
to the grid and injects the reactive current in voltage sag
that this action is well-known as a low-voltage ride-through
(LVRT). The grid voltage sag may lead to dc-link overvoltage
in permanent magnet synchronous generator (PMSG)-based
wind turbine, which connects by back-to-back (BTB) converter
to the grid. The BTB converter consists of a machine side
converter (MSC) and a grid-side converter (GSC). This paper
proposes the improved MSC controller, which uses de-loading
droop to adapt the generated active power of PMSG in the
grid voltage sags. In fact, the reference current of MSC is
determined by grid voltage according to the grid voltage sag
to implement the reactive current injection according to GC by
GSC. To verify the performance of the proposed controller, it is
simulated in MATLAB/Simulink environment and compared with
conventional de-loading droop that uses the dc-link voltage as the
input signal. The simulation results confirm the effectiveness of
the proposed controller in enhancing LVRT.