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Integration of wind generation and load forecast uncertainties into power grid operations

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8 Author(s)
Makarov, Y.V. ; Pacific Northwest Nat. Lab., Richland, WA, USA ; Etingov, P.V. ; Huang, Z. ; Ma, J.
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In this paper, a new approach to evaluate the uncertainty ranges for the required generation performance envelope, including the balancing capacity, ramping capability and ramp duration is presented. The approach includes three stages: statistical and actual data acquisition, statistical analysis of retrospective information, and prediction of future grid balancing requirements for specified time horizons and confidence intervals. Assessment of the capacity and ramping requirements is performed using a specially developed probabilistic algorithm based on a histogram analysis incorporating all sources of uncertainty and parameters of a continuous (wind forecast and load forecast errors) and discrete (forced generator outages and failures to start up) nature. Preliminary simulation using California Independent System Operator (CAISO) real life data has shown the effectiveness and efficiency of the proposed approach.

Published in:

Transmission and Distribution Conference and Exposition, 2010 IEEE PES

Date of Conference:

19-22 April 2010