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Abstract
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Article Information:
The Multi-stage Environment Economic Dispatch of Power System under Conditional Risk Constraints
Liu Chenggui, Tong Xiaojiao, Liu Yajuan and Yin Kun
Corresponding Author: Liu Chenggui
Submitted: January 07, 2014
Accepted: January 24, 2014
Published: May 20, 2014 |
Abstract:
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In this study we adopt three-stage dispatch method to solve the electrical power systems Economic Dispatch (ED) problem. Due to the new uncertainties in large-scale wind power integration, Conditional Value-at-Rist (CVaR) was introduced to described the safe and stable operation of the power system. Minimizing both the fuel cost and emission of atmospheric pollutants of thermal generators and load shedding cost were considered as objective functions, construct a considering risk constraints three-stage dispatch model of power systems. When computing, we incorporated the risk constraints into the objective function by penalty to get the optimization model in this study and the smoothing function method is used to make the optimization model have a continuous features, last the sample average method is used to calculate. Showing the advantage of this method in this study by calculating and analysis a 30 node illustrative system, besides, the last conclude demonstrates that the model proposed is feasibility.
Key words: Conditional Value-at-Rist (CVaR), economic dispatch, multi-stage, penalty function, smoothing function, ,
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Cite this Reference:
Liu Chenggui, Tong Xiaojiao, Liu Yajuan and Yin Kun, . The Multi-stage Environment Economic Dispatch of Power System under Conditional Risk Constraints. Research Journal of Applied Sciences, Engineering and Technology, (20): 4349-4354.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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