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A Genetic Algorithm Based Motor Controller System Automatic Layout Method
Han Cao,Puqi Ning,Xuhui Wen,Tianshu Yuan 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
In this paper, a genetic algorithm based automatic motor controller system layout design and optimization method is proposed for EV application. The modeling procedure including 3-D position and physical characteristic interpretation is described. The simplified purpose of optimization is to find a trade-off between volume and electrical performance of motor controller. Compared with the Pareto Front generated by enumeration method, the presented method can find the optimum solution with a higher speed. The proposed method can be easily extended to a complex system and can provide new approaches for motor controller system design.
Practical SPICE Model for IGBT and PiN Diode Based on Finite Differential Method
Cao, Han,Ning, Puqi,Wen, Xuhui,Yuan, Tianshu The Korean Institute of Power Electronics 2019 JOURNAL OF POWER ELECTRONICS Vol.19 No.6
In this paper, a practical SPICE model for an IGBT and a PiN diode is proposed based on the Finite Differential Method (FDM). Other than the conventional Fourier model and the Hefner model, the excess carrier distribution can be accurately solved by a fast FDM in the SPICE simulation tool. In order to improve the accuracy of the SPICE model, the Taguchi method is adopted to calibrate the extracted parameters. This paper presents a numerical modelling approach of an IGBT and a PIN diode, which are also verified by SPICE simulations and experiments.
Practical SPICE Model for IGBT and PiN Diode Based on Finite Differential Method
Han Cao,Puqi Ning,Xuhui Wen,Tianshu Yuan 전력전자학회 2019 JOURNAL OF POWER ELECTRONICS Vol.19 No.6
In this paper, a practical SPICE model for an IGBT and a PiN diode is proposed based on the Finite Differential Method (FDM). Other than the conventional Fourier model and the Hefner model, the excess carrier distribution can be accurately solved by a fast FDM in the SPICE simulation tool. In order to improve the accuracy of the SPICE model, the Taguchi method is adopted to calibrate the extracted parameters. This paper presents a numerical modelling approach of an IGBT and a PIN diode, which are also verified by SPICE simulations and experiments.
Online monitoring of IGBT junction temperature based on V<sub>ce</sub> measurement
Cao, Han,Ning, Puqi,Chai, Xiaoguang,Zheng, Dan,Kang, Yuhui,Wen, Xuhui The Korean Institute of Power Electronics 2021 JOURNAL OF POWER ELECTRONICS Vol.21 No.2
In this paper, an online junction temperature monitoring method based on the on-state voltage under high collector current density measurements for IGBT power modules is proposed. Unlike the conventional junction temperature monitoring method, the presented method can extract the junction temperature during operation without altering the modulation strategy or topology of the converter. The proposed method is verified by simulations and the JEDEC-51 standard recommended approach. To accurately extract the on-state voltage during operation, a measurement circuit that combines the advantages of both the active MOSFET clamp and the diode clamp is designed and tested. It has been shown to have good accuracy and a rapid response time. After the calibration results are obtained, the presented method is applied to a three-phase voltage source converter controlled by a closed-loop SVPWM modulation strategy.