Assessment of the ideality factor on the performance of photovoltaic modules

Luz, Caio Meira Amaral da; Tofoli, Fernando Lessa; Vicente, Paula dos Santos; Vicente, Eduardo Moreira

doi:10.1016/j.enconman.2018.04.084

Cited by 32 publications

(18 citation statements)

References 33 publications

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“…Most of the components are mass-produced using modern production equipment. The parameters are of course approximate and subject Table 2 These six design parameters have five levels (see the inner table L25) such that 5 6 experimental schemes may be generated by orthogonal experiments.…”

Section: Case Study (A Type Of Polarized Electromagnetic Relay With Pmentioning

confidence: 99%

“…The operating characteristics of EMDs, their quality and their robustness in turn determine the performance and reliability of the whole electrical control systems. In recent years, electrical control systems have developed in the direction of long-life, high reliability, miniaturization and low power consumption, which sets higher demands for the power consumption, volume, robustness and sensitivity of EMDs [4][5][6]. EMDs with permanent magnets are suitable to achieve the above goals and are thus extensively used in devices like relays, motors, actuators, and sensors [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Quality and robustness optimization design method for electromagnetic devices consider manufacturing uncertainties and working point migration of permanent magnets

Chen

et al. 2020

SN Appl. Sci.

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Electromagnetic devices (EMDs) containing permanent magnets are common devices showing low power consumption , small size, and high sensitivity. In batch production of EMDs there is a robustness problem linked to the migration of the working point of permanent magnets and to their manufacturing uncertainties. In turn, the design optimization for EMDs has attracted large attention. Robust design optimization (RDO) is one of the most effective methods to boost quality and robustness of EMDs. However, state-of-art RDO methods ignore the various uncertainties from manufacture processing, production environment, and working point migration of permanent magnets. To address those problems, this study presents an efficient and universal method based on the working point migration and various uncertainties of output characteristics for electromagnetic devices. At first, we introduce a two-dimensional factor design scheme considering the working point migration and manufacturing conditions. Then, a robustness assessment measure suitable for different optimization types is proposed. On these bases, the optimization model is established, considering the permanent working point migration for magnets, manufacturing tolerances and robustness constraints, and a particle swarm algorithm is used to obtain the solution. Finally, the effectiveness of the method is verified by a case study involving a specific type of electromagnetic device with permanent magnets.

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Section: Case Study (A Type Of Polarized Electromagnetic Relay With Pmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quality and robustness optimization design method for electromagnetic devices consider manufacturing uncertainties and working point migration of permanent magnets

Chen

et al. 2020

SN Appl. Sci.

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“…So, the initial quality loss LQ0 is calculated to be 1777.2 according to Equation (4). The initial manufacturing cost CM0 is calculated to be 405.1 by using Equations (5) and (6). Then, the initial total lost TL0 can be calculated to be 2182.3 by using Equation (7).…”

Section: Initial Total Lostmentioning

confidence: 99%

“…Among them, the quality fluctuation of electronic components and energy storage devices has become the main cause of renewable energy system failures [3]. Most of the current research has focused on the conversion and storage of renewable energy sources [4][5][6]. However, the optimization of robust and consistency of electronic components is rarely mentioned.…”

Section: Introductionmentioning

confidence: 99%

Robust Design Optimization of Electromagnetic Actuators for Renewable Energy Systems Considering the Manufacturing Cost

2019

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Power transmission and protection of power electronics–electromagnetic actuators are crucial parts in renewable energy systems (energy management of photovoltaic, wind power, hybrid and electric vehicles). Consistency optimization of electromagnetic actuators has attracted extensive attention from corporations in competitive markets. Robust design has been widely applied for reducing the influence of uncertainties in the manufacturing process to improve the consistency of product quality. However, the cost factors of the actual manufacturing process are not fully considered in state-of-art methods. Although the consistency has been improved, the optimization scheme may not be optimal from the perspective of engineering applications, because unnecessary cost increments may be produced. In this paper, an application-oriented robust design method for consistency optimization is proposed. The impact of tolerance values on quality loss and manufacturing cost can be considered simultaneously to guide the tolerance optimization process. Thus, the optimal solution of total loss is obtained by optimizing the quality fluctuation to the design objective with the minimum increment of manufacturing cost. An example of the consistency optimization of an electromagnetic actuator used in the photovoltaic system is presented to illustrate the procedure and verify the effectiveness of the proposed method.

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“…Photovoltaic power generation, wind power generation, electric vehicle applications, and so forth, can effectively solve the non-renewability and environmental pollution problems of traditional fossil energy. In the past few decades, related technologies have made great progress starting from scratch, even for large-scale applications [4][5][6]. In recent years, with the increase in renewable energy generation and power consumption, as well as the expansion of human life and industrial production, the reliability requirements of related technologies have increased [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A Novel Method for Comprehensive Quality and Reliability Optimization of High-Power DC Actuators for Renewable Energy Systems

Deng

Chen

et al. 2019

Energies

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To better qualify various uncertainties in design and manufacturing, as well as to understand the time-varying degradation process, a novel method of quality and reliable design and optimization for high-power DC actuators was developed in this study that considered relevant uncertainties in design, manufacturing parameters, and the degradation process. Orthogonal transformation was used to normalize heterogeneous uncertainties and the results were quantitatively described by the hyperellipsoid set model. On the basis of the uncertainty quantitative relationship, a fast substitution model was developed for high-power DC actuators with permanent magnet output characteristics of strong non-linearity and insufficient accuracy. The response surface method was used to derive the basis function, and the error between the practical measured values and the calculation values was modified by the radial basis function model. Afterwards, a life cycle global sensitivity analysis method was put forward to determine the design parameters when parameter degradation existed during the life cycle of high-power DC actuators. Then, an optimization model was established considering parameter uncertainties and reliability constraints, and the particle swarm algorithm was used to obtain the solution. Finally, the effectiveness of the proposed method was verified by a case study of high-power DC actuators in electric vehicles.

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Assessment of the ideality factor on the performance of photovoltaic modules

Cited by 32 publications

References 33 publications

Quality and robustness optimization design method for electromagnetic devices consider manufacturing uncertainties and working point migration of permanent magnets

Quality and robustness optimization design method for electromagnetic devices consider manufacturing uncertainties and working point migration of permanent magnets

Robust Design Optimization of Electromagnetic Actuators for Renewable Energy Systems Considering the Manufacturing Cost

A Novel Method for Comprehensive Quality and Reliability Optimization of High-Power DC Actuators for Renewable Energy Systems

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