A5014332014- Multilevel Inverters and Converters
- Silicon Carbide Semiconductor Technologies
- Semiconductor materials and devices
- Cancer Mechanisms and Therapy
- HVDC Systems and Fault Protection
- Microgrid Control and Optimization
- Lexicography and Language Studies
- Quantum-Dot Cellular Automata
- Linguistics, Language Diversity, and Identity
- Digital Communication and Language
- Advancements in Semiconductor Devices and Circuit Design
- Advanced DC-DC Converters
- Quantum Computing Algorithms and Architecture
- Induction Heating and Inverter Technology
China University of Mining and Technology
2022-2024
This paper proposes a novel dual-vector model predictive control (DV-MPC) method applied to modular multilevel converter(MMC). The traditional generally aim minimize the output current tracking error at next sampling instant, while proposed minimizes total harmonic distortion (THD) of by quantifying relationship between THD and trajectory within period. circulating is achieved selecting proper number inserted submodules (SMs) in upper lower arms. By appropriate SMs insert or bypass, voltage...
Aiming at the short-circuit (SC) capability for silicon carbide (SiC) MOSFETs due to limitation of gate oxide process, that is, ability MOSFET withstand large current and high voltage when channel is turned on, this article summarizes analyses various SC fault types SiC MOSFETs, which are further simulated through a designed test platform with strict timing control signals. well-explored hard switching (HSF) under loading (FUL), connection between these two other faults derived, brings about...
The application of the Z-source/quasi-Z-source inverter exacerbates hazard common mode voltage in motor drives or photovoltaic systems. existing reduced common-mode pulse width modulation (RCMV-PWM) technique applied to has solved problem suppression a certain extent, but its switching losses have not been optimized. In this paper, Active zero-state PWM (AZSPWM) and remote state (RSPWM) strategies quasi-Z-source inverters are analyzed, new loss optimized reduction strategy is proposed. This...
The importance of short-circuit protection in the driving scheme is self-evident, and key realization fast accurate fault detection. traditional drain-source voltage <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$(V_{\text{ds}})$</tex> detection method sacrifices speed to ensure reliability by setting a relatively large blanking time constant. However, shorter withstand SiC MOSFET puts forward higher requirement protection. Therefore, improved...
The traditional Z-source inverter modulation strategy is usually symmetric. Symmetric has a good effect in suppressing the second harmonic but also limits possibility of sequences. In this paper, an asymmetric proposed, which uses shoot-through vector only once switching period to maximize optimization losses caused by vector. current passing through devices analyzed, and it determined that minimum number vectors can achieve lowest loss. On basis, sequences several common strategies are...