State estimation for distribution systems with zero-injection constraints

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:367421

Lin, W M; Teng, J H ^[1]

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1. National Sun Yat-Sen Univ., Kaohsiung (Taiwan, Province of China). Dept. of Electrical Engineering

In this paper, a new fast decoupled state estimator with equality constraints is proposed for the three-phase distribution systems. The Lagrange multipliers were utilized to deal with the zero injections. The proposed method is based on the equivalent-current-measurement and rectangular coordinates. The method uses a compact constant-symmetric Gain matrix which can be decoupled into two identical sub-Gain matrices. The update and factorization of the gain matrix needs to be done only once. Tests have shown that the proposed low-storage method is efficient, accurate and robust in solving the unbalanced three-phase distribution systems.

• OSTI ID: 367421
• Report Number(s): CONF-950525-; TRN: IM9640%%167
• Resource Relation: Conference: IEEE power industry computer applications conference, Salt Lake City, UT (United States), 7-12 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of 1995 IEEE power industry computer application conference: Proceedings; PB: 588 p.
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
POWER DISTRIBUTION SYSTEMS
TOPOLOGY
AUTOMATION
COMPUTER CALCULATIONS
COMPUTERIZED CONTROL SYSTEMS