“20th PSCC 2018 papers submission and review platform

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Design of a Wide-Area Damping Controller Considering Communication Time Delays

Increasing introduction of PVs and expanding operation areas, inter-area low frequency oscillations become a serious problem and are often caused from poor system damping. According to rapid development of wide-area measurement systems (WAMS), wide-area damping controllers (WADC) designed using wide-area signals obtained from WAMS have been proposed to en-hance damping of inter-area low frequency oscillations. As wide-area signals are remote signals, they need to be transmit-ted through a communication network. Communication time delays caused by transmission of remote signals are one of the key factors influencing system stability and damping perfor-mance of WADCs. In this paper, we propose a WADC accom-modating a state feedback controller. To evaluate system sta-bility and damping performance of the proposed WADC, we perform transient analysis with three-phase faults using the IEEJ EAST 30-machine System Model. We verify the effective-ness of the proposed WADC through simulation studies with different time delays.

Author(s):

Yusuke Shiozaki    
Tokyo University of Science
Japan

Nobuyuki Yamaguchi    
Tokyo University of Science
Japan

Tomonori Sadamoto    
Tokyo Institute of Technology
Japan

 

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