Integer Encoding Differential Evolution Algorithm for Integer Programming

Deng, Changshou; Zhao, Bingyan; Yang, Yanlin; Deng, Anyuan

doi:10.1109/iciecs.2010.5677899

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…Therefore, some modifications of the original code, given by the authors of the DE [39], had to be made to allow for selection of the optimal network configuration and tap position from the set of integers. The idea of utilizing a DE for finding a solution that is not in a continuous space is not a new one, and different approaches to solving binary [44][45][46], or integer and mixed-integer differential evolution [47,48] can be found. The transition from a continuous to discrete search space, utilized for determining optimal network configuration and tap position, is discussed in Sections 2.2 and 2.3.…”

Section: Methodsmentioning

confidence: 99%

Utilization of Active Distribution Network Elements for Optimization of a Distribution Network Operation

2021

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Electricity Distributions Networks (DNs) are changing from a once passive to an active electric power system element. This change, driven by several European Commission Directives and Regulations in the energy sector prompts the proliferated integration of new network elements, which can actively participate in network operations if adequately utilized. This paper addresses the possibility of using these active DN elements for optimization of a time-discrete network operation in terms of minimization of power losses while ensuring other operational constraints (i.e., voltage profiles and line currents). The active elements considered within the proposed optimization procedure are distributed generation units, capable of reactive power provision; remotely controlled switches for changing the network configuration; and an on-load tap changer-equipped substation, supplying the network. The proposed procedure was tested on a model of an actual medium voltage DN. The results showed that simultaneous consideration of these active elements could reduce power losses at a considered point of operation while keeping the voltage profiles within the permitted interval. Furthermore, by performing a series of consecutive optimization procedures at a given time interval, an optimization of network operations for extended periods (e.g., days, months, or years) could also be achieved.

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Section: Methodsmentioning

confidence: 99%

Utilization of Active Distribution Network Elements for Optimization of a Distribution Network Operation

2021

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“…However, the algorithm also has the common problems of intelligent algorithms, namely, shrinkage stagnation and premature convergence. Many scholars have improved DE algorithm from the following four aspects: control parameter setting (Brest et al , 2006; Qin et al , 2009; Teo, 2016), evolutionary strategy selection (Das, 2009; Epitropakis et al , 2011; Tang et al , 2014), population structure (Depolli et al , 2013; Kushida et al , 2013) and mixing with other optimization algorithms (Deng and Liu, 2010; Zhan et al , 2014). These improved DE algorithms effectively balance the search ability and development ability of DE algorithm, and provide more choices for solving engineering problems.…”

Section: Introductionmentioning

confidence: 99%

Fractional equivalent circuit model and parameter identification of reactance components in high-frequency operation

Chen

Zhang

et al. 2023

COMPEL

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Purpose The purpose of this paper is to find a simpler model for the reactance components in the high-frequency range on the premise of ensuring the accuracy. Design/methodology/approach In this paper, based on the fractional calculus theory and the traditional integer-order model, a reactance model suitable for high frequency is constructed, and the mutation cross differential evolution algorithm is used to identify the parameters in the model. Findings By comparing the integer-order model, high-frequency fractional-order model and the actual impedance characteristic curve of inductance and capacitance, it is verified that the proposed model can more accurately reflect the high-frequency characteristics of inductance and capacitance. The simulation and experimental results show that the oscillator constructed based on the proposed model can analyze the frequency and output waveform of the oscillator more accurately. Originality/value The model proposed in this paper has a simple structure and contains only two parameters to be identified. At the same time, the model has high precision. The fitting errors of impedance curve and phase-frequency characteristic curve are less than 5%. Therefore, the proposed model is helpful to improve the simplicity and accuracy of circuit system analysis and design.

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A Hybrid Evolutionary Algorithm for Combined Road-Rail Emergency Transportation Planning

Rong

Zhang

et al. 2018

Lecture Notes in Computer Science

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Integer Encoding Differential Evolution Algorithm for Integer Programming

Cited by 5 publications

References 7 publications

Utilization of Active Distribution Network Elements for Optimization of a Distribution Network Operation

Utilization of Active Distribution Network Elements for Optimization of a Distribution Network Operation

Fractional equivalent circuit model and parameter identification of reactance components in high-frequency operation

A Hybrid Evolutionary Algorithm for Combined Road-Rail Emergency Transportation Planning

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