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binary real coded firefly algorithm for solving unit commitment problem

INFORMATION SCIENCES 2013年 249卷 67-84页

作者： Chandrasekaran, K. Simon, Sishaj P. Padhy, Narayana Prasad Kamaraj Coll Engn & Technol Dept EEE Virudunagar 620001 India Natl Inst Technol Dept EEE Tiruchirappalli 620015 Tamil Nadu India Indian Inst Technol Dept EE Roorkee 247667 Uttar Pradesh India

This paper presents a new biologically-inspired binary real coded firefly (BRCFF) algorithm to solve the unit commitment problem (UCP) by considering system and generating unit constraints. The firefly (FF) algorithm is inspired by the flashing behavior of fireflies and the phenomenon of bioluminescent communication. Upon solving UCP, the proposed binary coded FF algorithm determines the ON/OFF status of the generating units, while the economic dispatch problem (EDP) is solved using the real coded FF algorithm. The manner of firefly communication through luminescent flashes and their synchronization is imitated and suitably implemented in UCP. An effective constraint handling mechanism is introduced to solve complicated system and unit constraints. Finally, the proposed algorithm is applied to 3, 12, 17, 26, and 38 generating unit systems for a 24 h scheduling horizon and a comparative study is conducted using other recently reported results. Numerical results clarify and verify the significance of the proposed algorithm. The results obtained indicate that the proposed biologically-inspired algorithm could be an important player in swarm-based optimization. (C) 2013 Elsevier Inc. All rights reserved.

关键词： binary real coded firefly algorithm Economic dispatch problem Unit commitment problem

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Network and reliability constrained unit commitment problem using binary real coded firefly algorithm

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INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS 2012年第1期43卷 921-932页

作者： Chandrasekaran, K. Simon, Sishaj P. Natl Inst Technol Dept Elect & Elect Engn Tiruchirappalli 620015 Tamil Nadu India

In this paper, the binary real coded firefly (BRCFF) algorithm based on the flashing behavior of fireflies is proposed for solving network and reliability constrained unit commitment (UC) problem. In the first stage of the UC problem, the reliability constrained UC is solved using proposed binary coded firefly algorithm without satisfying network security constraints. The second stage of the problem solves optimal power flow (OPF) using real coded firefly algorithm to determine whether a converged and secure ac power flow can be obtained. Both the stages of the algorithm incorporate repair strategies and searches for a better solution. Here a random disturbance such as generation outages is modeled to evaluate the system reliability. Reliability of the system is recognized by loss of load probability (LOLP) index. The effectiveness of the proposed algorithm is demonstrated on 10 unit and IEEE RTS 24 bus system. The results of the proposed technique are compared with that of other techniques reported in the literature. In addition, the effect of the control parameters on the performance of firefly algorithm for UC problem is studied. (C) 2012 Elsevier Ltd. All rights reserved.

关键词： binary real coded firefly algorithm Network and reliability constraints Optimal power flow Unit commitment

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