Security constrained economic dispatch considering wind energy conversion systems

The available wind power is stochastic and requires appropriate tools in the OPF model for economic and reliable power system operation. This paper exhibit the OPF formulation with factors involved in the intermittency of wind power. Weibull distribution is adopted to find the stochastic wind speed and power distribution. The reserve requirement is evaluated based on the wind distribution and risk of under/over estimation of the wind power. In addition, the Wind Energy Conversion System (WECS) is represented by Doubly Fed Induction Generator (DFIG) based wind farms. The reactive power capability for DFIG based wind farm is also analyzed. The study is performed on IEEE-30 bus system with wind farm located at different buses and with different wind profiles. Also the reactive power capacity to be installed in the wind farm to maintain a satisfactory voltage profile under the various wind flow scenario is demonstrated.

Harold Silver papers, undated, 1922-1977.

The collection contains personal correspondence, manuscript and printed copies of articles and speeches, photographs and newspaper clippings pertaining to the education and social welfare activities of Silver.

Illegal aliens. : Hearings, Ninety-second Congress, first session.

"Serial no. 13."

University of Michigan Class of 1889

On verso: Taken Saturday A.M.; May 11, 1889; Property of Minnie H. Newby. Randall, Photographer ... Fine Art Goods (?) 30 E. Huron St. Ann Arbor, Mich. Additional documentation (re: names and provenance) available in folder

General view of Ann Arbor

Ornate mat. On verso: Randall, 220 Woodward Avenue, Detroit, Mich. Sturgis copy print in box 2 (251.6)

Bach and Abel Dry Goods

On verso in two hands: Compliments of Philip Bach. Corner Main and Washington

Main Street North from Liberty Street - Ann Arbor

Plates. 12 pts. in 1 v. Publication information: Chicago : The W. H. Parish publishing co., 1893. Digital image from copy neg in Stugis collection.

Ann Arbor, Michigan

Publication information: Battle Creek, Mich. : A. Ruger [1866]

Main Street, Ann Arbor, Michigan

Photo includes CA Lewis Boots & Shoes, Argus Printing Office, GH Millen Drugs and Medicines, John W. Hunt Hardware Store, German Lutheran School, Tanning Factory, Dietz building. Source: Harry Cole

State Street and University Avenues

On verso: Joseph Weare

Thomas M. Cooley, L.L.D.; Jay Prof. of Law

Dean of the University of Michigan Law School, 1871-1883. On verso: Class of '75, U. of M. Randall, 220 Woodward Ave., Detroit

Ella Thomas

On verso: Miss Ella Thomas, Schoolcraft, Mich. Class of '75, U. of M., Randall, 220 Woodward Ave., Detroit