Siwei Liu
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Siwei Liu has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Fang Li
Green energy Development Research Institute,Clean Energy Planning and Construction Research Center, State Grid Qinghai electric power company,Xining,China
1 shared publication - Haodong Lei
School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
1 shared publication - Jingmin Gao
Beijing Information Science and Technology University, 100192 Beijing, People’s Republic of China
1 shared publication - Ruixiang Hao
School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
1 shared publication - Xiaojie You
Department of Electrical Engineering, Beijing Jiaotong University, Beijing, China
1 shared publication
Latest Publications
- Open Access
Differential Equation Model of the LLC Resonant Converter in the Ideal Case
The LLC resonant converter has been widely used in direct current (DC) power supply applications. However, fundamental harmonic approximation or other simplified analyses will introduce inevitable deviations. Therefore, the differential equation model with numerical solution of the LLC converter is proposed in this paper based on the operational principle of the ideal case. In order to solve the differential equation, initial values need to be substituted. The accurate LLC model based on time interval analysis is very complicated and cannot be used. In this paper, solution methods of the initial values corresponding to different switching frequencies are proposed. The initial values can be solved conveniently. Furthermore, the voltage gain curve is modified by the idealized analysis. Lastly, all the above research is verified by PSIM simulation. The work is helpful to understand the operational principle of the LLC resonant converter.
Open AccessDifferential Equation Model of the LLC Resonant Converter in the Ideal Case
The LLC resonant converter has been widely used in direct current (DC) power supply applications. However, fundamental harmonic approximation or other simplified analyses will introduce inevitable deviations. Therefore, the differential equation model with numerical solution of the LLC converter is proposed in this paper based on the operational principle of the ideal case. In order to solve the differential equation, initial values need to be substituted. The accurate LLC model based on time interval analysis is very complicated and cannot be used. In this paper, solution methods of the initial values corresponding to different switching frequencies are proposed. The initial values can be solved conveniently. Furthermore, the voltage gain curve is modified by the idealized analysis. Lastly, all the above research is verified by PSIM simulation. The work is helpful to understand the operational principle of the LLC resonant converter.