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A simple two stage optimization algorithm for constrained power economic dispatch

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2 Author(s)
Huang, G. ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA ; Song, K.

A simple two stage optimization algorithm is proposed and investigated for fast computation of constrained power economic dispatch control problems. The method is a simple demonstration of the hierarchical aggregation-disaggregation (HAD) concept. The algorithm first solves an aggregated problem to obtain an initial solution. This aggregated problem turns out to be classical economic dispatch formulation, and it can be solved in 1% of overall computation time. In the second stage, a linear programming method finds optimal solution which satisfies power balance constraints, generation and transmission inequality constraints and security constraints. Implementation of the algorithm for IEEE systems and EPRI Scenario systems shows that the two stage method obtains an average speedup ratio of 10.64 as compared to the classical LP-based method

Published in:

Power Systems, IEEE Transactions on  (Volume:9 ,  Issue: 4 )

Date of Publication:

Nov 1994

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