Control of VSC connected to the grid through LCL-filter to achieve balanced currents
Paper i proceeding, 2005

Grid-connected voltage source converters (VSCs) are the heart of many applications with power quality concerns due to their reactive power controllability. However, the major drawback is their sensitivity to grid disturbances. Moreover, when VSCs are used in DG applications, voltage unbalance may be intolerant. The current protection may trip due to current unbalance or due to overcurrent. In this paper, a vector current controller for VSC connected to the grid through LCL-filter is developed with the main focus on producing symmetrical and balanced currents in case of unbalanced voltage dips. Implementing this controller helps the VSC system not to trip during voltage dips.

LCL-filter

voltage dips

VSC

power quality

- DG

vector current control

Författare

Fainan Magueed

Chalmers, Energi och miljö, Elkraftteknik

Jan Svensson

IEEE Industry Application Conference (IAS'05)

572-579

Ämneskategorier

Annan elektroteknik och elektronik