Affiliation:
1. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
Abstract
The inherent second harmonic power pulse in single-phase grid-connected rectifiers leads to a noticeable output voltage ripple and thus results in the degradation of the system. A novel second harmonic suppression control is introduced in this paper to address this issue. The key point of the proposed control lies in the real-time prediction of the phase-shifted full-bridge (PSFB) converter’s desired duty cycle through accurate PSFB converter modeling. By accurately predicting the ideal duty cycle, the proposed control facilitates a significant enhancement in the control loop’s gain specifically at the second harmonic frequency, thereby improving the overall system performance. To validate the theoretical analysis, a series of simulations and experiments were conducted. The results demonstrate the effectiveness of the proposed second harmonic suppression control in mitigating second harmonic output voltage ripple.
Reference18 articles.
1. Chen, J., Xu, J., Zhang, Y., Zhao, J., Hou, J., and Wang, Y. (IEEE Trans. Transport. Electrific., 2024). Geometrical State-Plane-based Synchronous Rectification Scheme for LLC Converter in EVs, IEEE Trans. Transport. Electrific., in press.
2. Xu, J., Mirić, S., Bortis, D., Blickenstorfer, M., Hitz, M., Kolar, J.W., and Huber, J. (J. Emerg. Sel. Top. Power Electron., 2023). Automatic Time-Division Multiplexing for Inductive Power Transfer to Multiple Stainless-Steel-Enclosed Receivers, J. Emerg. Sel. Top. Power Electron., in press.
3. Optimal self-scheduling for a multi-energy virtual power plant providing energy and reserve services under a holistic market framework;Wang;Energy,2023
4. Output Current Quality Improvement for VSC With Capability of Compensating Voltage Harmonics;Liao;IEEE Trans. Ind. Electron.,2023
5. Global Trends in High-Power On-Board Chargers for Electric Vehicles;Khaligh;IEEE Trans. Veh. Technol.,2019