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Analysis and Experimental Evaluation of a Soft Switching Boost Converter with Unbalanced Capacitor Voltage (2024)
Journal Article
Chen, Q., Klumpner, C., Li, Y., & Ahmed, M. R. (2024). Analysis and Experimental Evaluation of a Soft Switching Boost Converter with Unbalanced Capacitor Voltage. IEEE Transactions on Power Electronics, 39(9), 11176 - 11186. https://doi.org/10.1109/TPEL.2024.3404260

This paper presents a novel unbalanced capacitor voltage (UCV) soft switching boost converter under full loads range with a simple control scheme. The topology consists of a half bridge switching-leg, filter inductor, and an auxiliary circuit contain... Read More about Analysis and Experimental Evaluation of a Soft Switching Boost Converter with Unbalanced Capacitor Voltage.

Impacts of distributed thermal and electric contact resistance on performance and geometric optimization of thermoelectric generators (2024)
Journal Article
Li, Y., Shi, Y., Luo, D., Wang, X., & Yan, Y. (2024). Impacts of distributed thermal and electric contact resistance on performance and geometric optimization of thermoelectric generators. Applied Thermal Engineering, 246, Article 122873. https://doi.org/10.1016/j.applthermaleng.2024.122873

Thermal and electric contact resistance (TCR/ECR) critically impact performance and geometric optimization of thermoelectric generators (TEGs). However, conventional treatments usually ignored or simplified them as lumped variables, neglecting their... Read More about Impacts of distributed thermal and electric contact resistance on performance and geometric optimization of thermoelectric generators.

Dual Antiplatelet Treatment up to 72 Hours after Ischemic Stroke (2023)
Journal Article
Gao, Y., Chen, W., Pan, Y., Jing, J., Wang, C., Johnston, S. C., …Wang, Y. (2023). Dual Antiplatelet Treatment up to 72 Hours after Ischemic Stroke. New England Journal of Medicine, 389(26), 2413-2424. https://doi.org/10.1056/nejmoa2309137

BACKGROUND: Dual antiplatelet treatment has been shown to lower the risk of recurrent stroke as compared with aspirin alone when treatment is initiated early (≤24 hours) after an acute mild stroke. The effect of clopidogrel plus aspirin as compared w... Read More about Dual Antiplatelet Treatment up to 72 Hours after Ischemic Stroke.

Hybrid sensible-latent heat thermal energy storage using natural stones to enhance heat transfer: Energy, exergy, and economic analysis (2023)
Journal Article
Zhang, S., Li, Y., & Yan, Y. (2024). Hybrid sensible-latent heat thermal energy storage using natural stones to enhance heat transfer: Energy, exergy, and economic analysis. Energy, 286, Article 129530. https://doi.org/10.1016/j.energy.2023.129530

Latent heat thermal energy storage addresses the mismatch between energy supply and demand; however, phase change materials (PCM) commonly have the issue of low thermal conductivity. Natural stones, as low-cost and environmentally friendly sensible h... Read More about Hybrid sensible-latent heat thermal energy storage using natural stones to enhance heat transfer: Energy, exergy, and economic analysis.

Realizing ultrahigh ZT value and efficiency of the Bi2Te3 thermoelectric module by periodic heating (2023)
Journal Article
Luo, D., Li, Y., Yan, Y., Hu, X., Fan, X., Chen, W., …Cao, B. (2023). Realizing ultrahigh ZT value and efficiency of the Bi2Te3 thermoelectric module by periodic heating. Energy Conversion and Management, 296, Article 117669. https://doi.org/10.1016/j.enconman.2023.117669

Thermoelectric power generation is regarded as a promising technology to convert waste heat into electricity. This study aims to address the low conversion efficiency of thermoelectric modules and introduces a novel periodic heating method to enhance... Read More about Realizing ultrahigh ZT value and efficiency of the Bi2Te3 thermoelectric module by periodic heating.

Exhaust channel optimization of the automobile thermoelectric generator to produce the highest net power (2023)
Journal Article
Luo, D., Yan, Y., Li, Y., Yang, X., & Chen, H. (2023). Exhaust channel optimization of the automobile thermoelectric generator to produce the highest net power. Energy, 281, Article 128319. https://doi.org/10.1016/j.energy.2023.128319

The automobile thermoelectric generator is a promising energy conversion technology to enhance fuel economy and decrease the fuel consumption of vehicles. In order to boost the performance of the automobile thermoelectric generator, the fin distance... Read More about Exhaust channel optimization of the automobile thermoelectric generator to produce the highest net power.

Dynamic behaviour of automobile thermoelectric waste heat recovery under different driving cycles (2023)
Journal Article
Luo, D., Yan, Y., Li, Y., Chen, W. H., Yang, X., Wang, X., & Cao, B. (2023). Dynamic behaviour of automobile thermoelectric waste heat recovery under different driving cycles. Applied Thermal Engineering, 232, Article 121039. https://doi.org/10.1016/j.applthermaleng.2023.121039

Different types of vehicles often run in different driving cycles, resulting in different dynamic behaviours of the automobile thermoelectric generator. The dynamic performance of a simplified automobile thermoelectric generator under different drivi... Read More about Dynamic behaviour of automobile thermoelectric waste heat recovery under different driving cycles.

Recent development in structural designs and thermal enhancement technologies of thermoelectric generator with different types of heat sources: A review (2023)
Journal Article
Li, Y., Wang, X., Luo, D., Shi, Y., Ren, Y., & Yan, Y. (2023). Recent development in structural designs and thermal enhancement technologies of thermoelectric generator with different types of heat sources: A review. e-Prime - Advances in Electrical Engineering, Electronics and Energy, 4, Article 100180. https://doi.org/10.1016/j.prime.2023.100180

A Class-E-Based Multichannel Auxiliary Power Supply with Individual Hysteresis Control (2023)
Journal Article
Li, Y., Watson, A. J., & Kaya, M. (2023). A Class-E-Based Multichannel Auxiliary Power Supply with Individual Hysteresis Control. IEEE Journal of Emerging and Selected Topics in Power Electronics, 11(3), 3335-3347. https://doi.org/10.1109/jestpe.2023.3264107

A high performance auxiliary power supply (APS) with multiple isolated outputs plays a crucial role in ensuring the effective operation of power converter systems. An isolated resonant current source converter is usually adopted as the APS in medium-... Read More about A Class-E-Based Multichannel Auxiliary Power Supply with Individual Hysteresis Control.

Optimal design of a heat exchanger for automotive thermoelectric generator systems applied to a passenger car (2023)
Journal Article
Luo, D., Wu, Z., Yan, Y., Ji, D., Cheng, Z., Wang, R., …Yang, X. (2023). Optimal design of a heat exchanger for automotive thermoelectric generator systems applied to a passenger car. Applied Thermal Engineering, 227, Article 120360. https://doi.org/10.1016/j.applthermaleng.2023.120360

The heat exchanger determines the overall performance of automotive thermoelectric generator (ATEG) systems. To obtain the accurate performance of the ATEG system under actual driving conditions, a fluid-thermal-electric multiphysics numerical model... Read More about Optimal design of a heat exchanger for automotive thermoelectric generator systems applied to a passenger car.

Thermal and electrical contact resistances of thermoelectric generator: Experimental study and artificial neural network modelling (2023)
Journal Article
Li, Y., Shi, Y., Wang, X., Luo, D., & Yan, Y. (2023). Thermal and electrical contact resistances of thermoelectric generator: Experimental study and artificial neural network modelling. Applied Thermal Engineering, 225, Article 120154. https://doi.org/10.1016/j.applthermaleng.2023.120154

Thermal and electrical contact resistances (TCR and ECR) of thermoelectric generator (TEG) exert essential impacts on its performance. In this study, through a series of experiments these two important properties have been estimated in a wide range o... Read More about Thermal and electrical contact resistances of thermoelectric generator: Experimental study and artificial neural network modelling.

A hybrid transient CFD-thermoelectric numerical model for automobile thermoelectric generator systems (2022)
Journal Article
Luo, D., Yan, Y., Li, Y., Wang, R., Cheng, S., Yang, X., & Ji, D. (2023). A hybrid transient CFD-thermoelectric numerical model for automobile thermoelectric generator systems. Applied Energy, 332, Article 120502. https://doi.org/10.1016/j.apenergy.2022.120502

Dynamic performance prediction of the automobile thermoelectric generator system is one of the research hotspots in the field of thermoelectric technology. In this work, a hybrid transient CFD-thermoelectric numerical model is proposed for the first... Read More about A hybrid transient CFD-thermoelectric numerical model for automobile thermoelectric generator systems.

Development of two transient models for predicting dynamic response characteristics of an automobile thermoelectric generator system (2022)
Journal Article
Luo, D., Zhao, Y., Yan, Y., Chen, H., Chen, W.-H., Wang, R., …Yang, X. (2023). Development of two transient models for predicting dynamic response characteristics of an automobile thermoelectric generator system. Applied Thermal Engineering, 221, Article 119793. https://doi.org/10.1016/j.applthermaleng.2022.119793

In this work, two transient models, including a transient fluid-thermal-electric multiphysics numerical model and a hybrid transient CFD-analytical model, are proposed to predict the dynamic performance of the automobile thermoelectric generator syst... Read More about Development of two transient models for predicting dynamic response characteristics of an automobile thermoelectric generator system.

Recent advances in modeling and simulation of thermoelectric power generation (2022)
Journal Article
Luo, D., Liu, Z., Yan, Y., Li, Y., Wang, R., Zhang, L., & Yang, X. (2022). Recent advances in modeling and simulation of thermoelectric power generation. Energy Conversion and Management, 273, Article 116389. https://doi.org/10.1016/j.enconman.2022.116389

Thermoelectric power generation is a renewable energy conversion technology that can directly convert heat into electricity. In recent years, a great number of theoretical models have been established to predict and optimize the performance of both t... Read More about Recent advances in modeling and simulation of thermoelectric power generation.

Variable Switching Frequency ON–OFF Control for Class E DC–DC Converter (2018)
Journal Article
Li, Y., Ruan, X., Zhang, L., Dai, J., & Jin, Q. (2019). Variable Switching Frequency ON–OFF Control for Class E DC–DC Converter. IEEE Transactions on Power Electronics, 34(9), 8859-8870. https://doi.org/10.1109/tpel.2018.2888926

The efficiency improvement of the on-off controlled Class E dc-dc converter operated at 20 MHz switching frequency is investigated in this paper. It is found that with the on-off control, the input power of the converter during the on mode increases... Read More about Variable Switching Frequency ON–OFF Control for Class E DC–DC Converter.

A rapid tracking method of maximum power point for solar units in series under uneven solar irradiance (2015)
Journal Article
Wang, Y., Ruan, X., & Li, Y. (2015). A rapid tracking method of maximum power point for solar units in series under uneven solar irradiance. Zh¿nggÚo DiÀnji G¿ngchÉng XuÉbÀo, 35(19), 4870-4878. https://doi.org/10.13334/j.0258-8013.pcsee.2015.19.004

When several solar units are combined into one branch in series, the multi-peak phenomenon of the output power of the branch would appear because of the bypass diodes. Based on analyzing the operation principle of the circuit, it was found that the n... Read More about A rapid tracking method of maximum power point for solar units in series under uneven solar irradiance.

High-Accuracy and Fast-Speed MPPT Methods for PV String Under Partially Shaded Conditions (2015)
Journal Article
Wang, Y., Li, Y., & Ruan, X. (2016). High-Accuracy and Fast-Speed MPPT Methods for PV String Under Partially Shaded Conditions. IEEE Transactions on Industrial Electronics, 63(1), 235-245. https://doi.org/10.1109/TIE.2015.2465897

The photovoltaic (PV) string under partially shaded conditions exhibits complex output characteristics, i.e., the current-voltage (I-V ) curve presentsmultiple current stairs, whereas the power-voltage (P-V ) curve shows multiple power peaks. Thus, t... Read More about High-Accuracy and Fast-Speed MPPT Methods for PV String Under Partially Shaded Conditions.