TY - GEN
T1 - Event-trigger strategy design and its comparative study for dynamic state estimation in power systems
AU - Zheng, Lini
AU - Chen, Zhen
AU - Su, Wuyang
AU - Li, Sen
AU - Chen, Xi
AU - Liu, Xiangdong
AU - Li, Zhen
N1 - Publisher Copyright:
© 2019 IEEE
PY - 2019
Y1 - 2019
N2 - The wide area measurement systems (WAMS) plays a critical part in power system reliability. Among all the WAMS applications, the dynamic state estimation (DSE) gathers all the data from the phasor measurement units (PMU) through the communication link so that the real-time wide area monitoring is facilitated at the application server to capture the dynamics of every generators. However, the DSE inevitably suffers from the communication link congestion and latency due to the explosive increase of grid size. To deal with this problem, this paper designs the event-trigger cubature Kalman filter (ETCKF) as an effective solution to get the communication burden relieved, by transmitting only the PMU measurements containing innovation. In order to provide the design-oriented strategy, various kinds of event-trigger strategies are evaluated in view of the estimation performance under the same communication rate. Finally, the standard IEEE 39-bus system is under test to verify the feasibility of ETCKF and the performance of various strategies.
AB - The wide area measurement systems (WAMS) plays a critical part in power system reliability. Among all the WAMS applications, the dynamic state estimation (DSE) gathers all the data from the phasor measurement units (PMU) through the communication link so that the real-time wide area monitoring is facilitated at the application server to capture the dynamics of every generators. However, the DSE inevitably suffers from the communication link congestion and latency due to the explosive increase of grid size. To deal with this problem, this paper designs the event-trigger cubature Kalman filter (ETCKF) as an effective solution to get the communication burden relieved, by transmitting only the PMU measurements containing innovation. In order to provide the design-oriented strategy, various kinds of event-trigger strategies are evaluated in view of the estimation performance under the same communication rate. Finally, the standard IEEE 39-bus system is under test to verify the feasibility of ETCKF and the performance of various strategies.
KW - Communication rate
KW - Dynamic state estimation (DSE)
KW - Event-trigger strategy
KW - Event-triggered cubature Kalman filter (ETCKF)
KW - Phasor measurement units (PMU)
UR - https://www.scopus.com/pages/publications/85066813795
U2 - 10.1109/ISCAS.2019.8702156
DO - 10.1109/ISCAS.2019.8702156
M3 - Conference contribution
AN - SCOPUS:85066813795
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
Y2 - 26 May 2019 through 29 May 2019
ER -