A Simple Two Stage Optimization Algorithm for Constrained Power Economic Dispatch

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5 Citations (Scopus)


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 agregated: Problem to obtain all 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 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 average speedup ratio 10.64 as compared to classical LP-Based method.

Original languageEnglish
Pages (from-to)1818-1824
Number of pages7
JournalIEEE Transactions on Power Systems
Issue number4
Publication statusPublished - 1 Jan 1994
Externally publishedYes


ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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