A modular multilevel resonant (MMR) dc-dc converter, its modulation, and control are proposed in this article. The MMR converter inherits the desirable features of both the modular multilevel converter and LLC resonant converter, such as high voltage capability, easy fault-tolerant operation, and...
Modular multilevel converters (MMCs) have become increasingly interesting in dc-dc applications, as there is a growing demand for dc-dc converters in high voltage applications. Power electronics transformers (PETs) are commonly used for high step...
Several applications need a high power, high output voltage ac/dc converter. The structure includes a dc/dc resonant stage, which is fed from a three-phase line. Due to standards, rectified dc input voltage varies largely from 400 to 750 V affecting the adversely overall design and current ...
Design and Control of Unidirectional DC–DC Modular Multilevel Converter for Offshore DC Collection Point: Theoretical Analysis and Experimental Validation This paper presents the design and control of an advanced unidirectional dc-dc modular multilevel converter (MMC), which enables the integration of ...
Quasi Resonant DC Link:准谐振直流环节 热度: 基于准比例谐振控制器的MMC交流故障穿越控制方法 热度: An Overview of Control of Multilevel Converters 热度: 相关推荐 DOI : 10 7500 / AEPS20130305005 基于准比例谐振控制的 MMC 新型环流抑制器 班明飞申 科王建赜纪延超 哈尔滨工业大学电气工程及自动化...
The lightweight of modular multilevel converter (MMC) and the DC faults ride-through ability are main challenges for MMC-high voltage direct current (HVDC) transmission systems. By introducing the concept of time-division multiplexing, an arm multiplexing MMC (AM-MMC) topology with high utilization...
DC fault analysis for modular multilevel converter-based system It can also be seen that the current of DC cable decays gradually; the current at the AC side has a same waveform as a three- phase fault current... LI Bin,HE Jiawei,J Tian,... - 《Journal of Modern Power Systems & Cle...
Disclosed in the present invention is a four-port power electronic transformer based on a hybrid modular multilevel converter (MMCs). The four-port power e... J Zhao,D Li,Z Ji,... 被引量: 0发表: 2018年 A High-Frequency DC-DC Converter for the Next Generation Train (NGT) CARGO ...
the harmonic pollution. it also requires a larger number of switches than the dc-dc choppers. fig. 14 lcl thyristor-based dc-dc converter full size image the limited number of voltage levels in the two-level vsc result in high ac current harmonics. therefore, the modular multilevel converter...
The bus converter has at least one controlled rectifier with a parallel uncontrolled rectifier... RW Farrington,Martin F. Schlecht 被引量: 9发表: 2013年 Hybrid-wave modulation for modular multilevel high-frequency DC converter in DC distribution application Compared with AC distribution networks, DC...