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Period-Oriented State Estimation Approach for Power System Operational Control

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2 Author(s)
Ren Jiangbo ; Dept. of Electr. Eng., Harbin Inst. of Technol. ; Guo Zhizhong

State estimation is the important basis of power system operating control. To reconcile the conflict between measurement speediness and decision-making slowness and then achieve timely and effective control, it is an advisable choice to carry on a period-oriented overall network state analysis with a cycle of some minutes. This paper proposes the concept of period-oriented state estimation, which provides state vectors of characteristic time sections within a period of time. It is considered that the characteristic time sections can basically characterize the operating status of power system within a period. The mathematical model of the period-oriented SE is built, and a numerical example is analyzed, which proves the information provided by period-oriented SE all-around and pivotal. In operating control, period-oriented SE has a practical potentiality as the basis of stable-state operating status assessment and decision-making

Published in:

Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES

Date of Conference:

2005