Efficient Lambda Logic Based Optimisation Procedure to Solve the Large Scale Generator Constrained Economic Dispatch Problem

Abstract

-A simple and efficient Lambda logic (λ-logic) based algorithm is proposed for the solution of the generator constrained economic dispatch problem when the generating units having prohibited zones. The proposed method solves the economic dispatch (ED) problem that takes into account ramprate limits, transmission losses and prohibited operating zones in the power system operation. The proposed method uses a simple heuristic rule based on average power of prohibited operating zones which produces the feasibility of solution for the restricted operating units. The effectiveness of the algorithm is tested on five different test systems and the performance compared with other relevant methods reported in the literature. In all the cases, the proposed algorithm performs better than the previous existing algorithms with a less computational burden.

Economic Dispatch Optimization Strategies and Problem Formulation: A Comprehensive Review

“…The lambda optimization technique has extensive applications in various fields, including, but not limited to, economic dispatch. While some research studies employed the conventional lambda iteration algorithm to solve classic economic dispatch problems [90][91][92][93], more contemporary investigations have developed advanced variants of the method that are better suited to handle real-world systems [94][95][96][97][98][99]. This approach is adopted to obtain the optimal dispatch while accounting for prohibited operating zones and effectively mitigating the oscillatory behavior that is commonly observed in the conventional lambda iteration method.…”