Algorithms for Power Converter Design Optimization

Balachandran, Swaminathan; Lee, Fred C. Y.

doi:10.1109/taes.1981.309070

Cited by 56 publications

(15 citation statements)

References 6 publications

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“…This problem was also reported in previous research [2], [4], [25]. In order to avoid the optimization to be trapped at the local minima, the switching frequency is kept constant in each optimization branch.…”

Section: A Fixed Switching Frequency Branchesmentioning

confidence: 89%

“…Early research work [2] utilized conventional optimization techniques, such as the sequential unconstrained minimization technique (SUMT) or the augmented Lagrangian (ALAG) penalty function technique, to optimize the converter mass. Design constraints were included into the optimization program.…”

Section: List Of Symbolsmentioning

confidence: 99%

“…Design constraints were included into the optimization program. As an extension of [2], halfbridge converter optimization using a penalty function [3] was proposed to optimize the converter mass. Detailed converter optimization results are presented.…”

Section: List Of Symbolsmentioning

confidence: 99%

“…In the following analyses, we first assume that the converter operation is ideal. The number of primary and secondary turns can be calculated according to (1) and (2). Here, we prefer to use the duty and flux swing rather than the number of turns as the design variables, mainly because they can express the converter and magnetic characteristics from a design point of view.…”

Section: Component Loss Modelsmentioning

confidence: 99%

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Two-Stage Optimization Method for Efficient Power Converter Design Including Light Load Operation

Yu¹,

Pong²,

Ling

et al. 2012

IEEE Trans. Power Electron.

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Power converter efficiency is always a hot topic for switch mode power supplies. Nowadays, high efficiency is required over a wide load range, e.g., 20%, 50% and 100% load. Computer-aided design optimization is developed in this research work, to optimize off-line power converter efficiency from light load to full load. A two-stage optimization method to optimize power converter efficiency from light load to full load is proposed. The optimization procedure first breaks the converter design variables into many switching frequency branches. In each fixed switching frequency branch, the optimal designs for 20%, 50% and 100% load are derived separately in the first stage, and an objective function using the optimization results in the first stage is formed in the second stage to consider optimizing efficiency at 20%, 50% and 100% load. Component efficiency models are also established to serve as the objective functions of optimizations. Prototypes 400V to 12V/25A 300W two-FET forward converters are built to verify the optimization results.

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Section: A Fixed Switching Frequency Branchesmentioning

confidence: 89%

Section: List Of Symbolsmentioning

confidence: 99%

Section: List Of Symbolsmentioning

confidence: 99%

Section: Component Loss Modelsmentioning

confidence: 99%

See 2 more Smart Citations

Two-Stage Optimization Method for Efficient Power Converter Design Including Light Load Operation

Yu¹,

Pong²,

Ling

et al. 2012

IEEE Trans. Power Electron.

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show abstract

“…A simultaneous optimization considering control and design parameters as optimization variables has also been presented in [1]. Genetic Algorithms (GAs) [2][3] [4], Augmented Lagrangian (ALAG) [5][6] [7], and Sequential quadratic programming (SQP) techniques [8], are usually the selected optimization procedures. In order to speed-up the computation time, the design models are usually based on analytical formulation.…”

Section: Introductionmentioning

confidence: 99%

Efficient hybrid optimal design method for power electronics converters

Magallanes

Aguglia

Viarouge

et al. 2015

2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)

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This paper presents a novel design methodology for dimensioning optimal power-electronic converters, which is able to achieve the precision of numerical simulation-based optimization procedures, however minimizing the overall computation time. The approach is based on the utilization of analytical and frequency-domain design models for a numerical optimization process, a validation with numerical simulations of the intermediate optimal solutions, and the correction of the analytical design models precision from the numerical simulation results. This method allows using the numerical simulation in an efficient way, where typically less than ten correction iterations are required. In order to demonstrate the performances of the proposed methodology, the calculation of the control parameters for an H-bridge DC-DC converter and the optimal dimensioning of a damped output filter for a buck converter using the proposed approach is presented. AbstractThis paper presents a novel design methodology for dimensioning optimal power-electronic converters, which is able to achieve the precision of numerical simulation-based optimization procedures, however minimizing the overall computation time. The approach is based on the utilization of analytical and frequency-domain design models for a numerical optimization process, a validation with numerical simulations of the intermediate optimal solutions, and the correction of the analytical design models precision from the numerical simulation results. This method allows using the numerical simulation in an efficient way, where typically less than ten correction iterations are required. In order to demonstrate the performances of the proposed methodology, the calculation of the control parameters for an H-bridge DC-DC converter and the optimal dimensioning of a damped output filter for a buck converter using the proposed approach is presented.

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A Soft Computing Approach for Optimal Design of a DC-DC Buck Converter

Saharia

Sarmah

2019

Lecture Notes in Computer Science

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Algorithms for Power Converter Design Optimization

Cited by 56 publications

References 6 publications

Two-Stage Optimization Method for Efficient Power Converter Design Including Light Load Operation

Two-Stage Optimization Method for Efficient Power Converter Design Including Light Load Operation

Efficient hybrid optimal design method for power electronics converters

A Soft Computing Approach for Optimal Design of a DC-DC Buck Converter

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