Wide-Area Power System Damping Control using Synchrophasor Data
Joe H. Chow, Rensselaer Polytechnic Institute, USA
Abstract:
This talk presents an interarea mode damping control strategy for power systems using synchrophasor data. A key consideration is the time delay in computing the phasor quantities and the variable communication network latency for controllers to use remote synchrophasor data. Based on the statistical estimate of the synchrophasor arrival time, a control strategy is developed assuming a fixed delay time that would accommodate most of the data. An adaptive component is used to augment the control design for data arriving beyond the selected delay time. The design is illustrated with a 2-area power system. Applications to large power systems will be discussed.