Interaction analysis and multi-response optimization of transformer winding design parameters

Tan, Youbo; Yu, Xiaoling; Wang, Xiaolin; Liu, Qian; Miao, Song

doi:10.1016/j.icheatmasstransfer.2022.106233

Cited by 7 publications

(2 citation statements)

References 33 publications

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“…High-fidelity loss models of one specific variable pump and variable motor were established through the response surface method based on the Design-Expert-v8.0 software. The specific application of this software is described in [29]. The loss models of the tested variable pump and motor can be described using the polynomial equations shown in Equations ( 11)- (16).…”

Section: Efficiency Estimation Module (Eem)mentioning

confidence: 99%

An Energy-Efficient Adaptive Speed-Regulating Method for Pump-Controlled Motor Hydrostatic Drive Powertrains

Wang,

Zhang,

et al. 2023

Processes

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In this paper, a closed hydrostatic drive powertrain (HSDP) composed of an engine, a variable pump, a variable motor, and an energy-efficient adaptive speed-regulating controller (ADC) based on power following is proposed and investigated. The controller can more than guarantee accurate regulation of motor speed through online efficiency estimation based on established loss models of the pump and the motor. It also facilitates the optimal efficiency control of the engine and hydrostatic system through two redundant control freedoms of the HSDP system, making an energy-saving adjustment of the motor speed. At the same time, the controller can prevent engine overload stall and high system pressure by limiting the displacement of the pumps and motors in real time based on the system loads to improve the automatic adaptability of the system to varying loads. Field testing experiments performed by means of a heavy transportation vehicle under different conditions were conducted to verify the efficacy of the proposed controller. The results showed that the average errors of motor speed were 3.3% under empty load conditions and 9.6% under heavy load conditions. In terms of energy saving, comparison tests involving a rule-based controller (RBC) and the ADC were carried out, and the results showed that the energy-saving ratio of the ADC was at least 11.5% and up to 25.8% under empty load conditions and at least 2.8% and up to 9% under heavy load conditions. The ADC controller showed good performance in terms of speed control, load adaptability, and energy saving and a superior advantage due to its simple structure and ease of implementation. Therefore, the proposed controller is an excellent choice for the real-time control of machinery with an HSDP system, especially heavy-duty machinery.

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Section: Efficiency Estimation Module (Eem)mentioning

confidence: 99%

An Energy-Efficient Adaptive Speed-Regulating Method for Pump-Controlled Motor Hydrostatic Drive Powertrains

Wang,

Zhang,

et al. 2023

Processes

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“…Design Expert (13 Trial version), an easy to implement and economical optimisation program, was used to show the relationship between yield strenght and seawater temperature and welding current intensity [29], [30], [31]. Thus, using the Central Composite experimental design selected in the program, Response Surfaces were obtained for Yield strenght AH36, and optimised as a function of seawater temperature and welding current intensity.…”

Section: Introductionmentioning

confidence: 99%

Effects of water temparature and welding current of microstructure and mechanical performance of AH36 welded by SMAW and chemichal composition of seawater.

Görgün

2023

Preprint

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Underwater wet welding (UWW) is applied to repair offshore structures, underwater pipelines, water transport, docks and harbour equipment. In this study, the mechanical and microstructural properties of AH36 low carbon steel were investigated at different welding current strengths and different seawater temperatures using metal arc welding (SMAW), an underwater wet welding method. Changing seawater temperatures and welding current parameters were examined together, so that the change of seasonal variability in welding parameters and chemical structure of seawater was examined. For this purpose, in the first stage, the yield strength value of AH36 was statistically modelled using the central composite design with the response surface method with input parameters of seawater temperature (in the range of 9.7°C-25.3°C) and source current value (in the range of 49A-90A) and the best conditions were found as Optimum Yield stregth 270MPa, 17.5°C seawater temperature and 69.5 A source current value. In the second stage of the study, the data obtained from the optimisation studies were used in the multi-response optimisation model to obtain elemental exchange equations for Cr (R2 = 87.3), Ni (R2 = 64.45) and Mn (R2 = 65.74) ionised in seawater. Accordingly, it was observed that the change in Cr content in seawater is affected by source current intensity, Ni content is affected by seawater temperature and Mn content is affected by current intensity and seawater temperature together. ICPMS was used for ion exchange in seawater, EDS point analysis for chemical composition in AH36 and SEM for microstructure analysis.

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Thermal analysis and optimization on a transformer winding based on non-uniform loss distribution

Tan

Wang

et al. 2023

Applied Thermal Engineering

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Interaction analysis and multi-response optimization of transformer winding design parameters

Cited by 7 publications

References 33 publications

An Energy-Efficient Adaptive Speed-Regulating Method for Pump-Controlled Motor Hydrostatic Drive Powertrains

An Energy-Efficient Adaptive Speed-Regulating Method for Pump-Controlled Motor Hydrostatic Drive Powertrains

Effects of water temparature and welding current of microstructure and mechanical performance of AH36 welded by SMAW and chemichal composition of seawater.

Thermal analysis and optimization on a transformer winding based on non-uniform loss distribution

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