Dispatch Based on Information Gap Decision Theory for Power System with Wind Power

doi:10.3969/j.issn.1000－7229.2018.09.011

Abstract

Abstract: With the development of society, new energy sources, such as wind power, which have randomness and intermittency, have begun to connect to the power grid. At the same time, the change of load side structure, the subjectivity of user and the limitation of prediction technology make the actual load demand difficult to be obtained accurately. These new factors have led to increased "Knightian Uncertainty " in the power system, which makes power system scheduling become a very challenging job. The paper makes use of a new non-probabilistic approach-information gap decision theory （IGDT） to model the uncertainty of wind power output and the system load demand. And two models are deduced in risk averse and opportunity seeker strategies for dispatcher, which solves the Knightian Uncertainty of wind power and load in power system. Finally, the analysis is examined on Modified IEEE 39-bus system, and the validity of IGDT model is proved by result analysis and Monte Carlo method.

Key words: power system dispatching, information gap decision theory（IGDT）, wind power, uncertainty

CLC Number:

TM 73

PAN Zhaoxu, LIU Sanming, WANG Zhijie, WANG Shuai, DING Chaoran. Dispatch Based on Information Gap Decision Theory for Power System with Wind Power[J]. Electric Power Construction, 2018, 39(9): 87-94.

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