Comprehensive understanding of DC pole-to-pole fault and its protection for modular multilevel converters

Autor: Xiaofeng Yang, Yao Xue, Piao Wen, Zejie Li

Publikováno v: High Voltage (2018)

A modular multilevel converter (MMC) is one of the promising voltage source converter topologies in the field of high-voltage direct current (HVDC) transmission. MMCs are vulnerable to the direct current (DC) short-circuit faults due to the high disc

Externí odkaz: https://doaj.org/article/d529edd2ecbc4bd682315b3f19f4e9a9

Passivity-Based Design for High-Order Harmonic Voltage Emulation of Grid Emulators

Autor: Zejie Li, Fangzhou Zhao, Xiongfei Wang

Publikováno v: Li, Z, Zhao, F & Wang, X 2022, Passivity-Based Design for High-Order Harmonic Voltage Emulation of Grid Emulators . in 2022 International Power Electronics Conference (IPEC-Himeji 2022-ECCE Asia) . IEEE, pp. 2394-2399, IPEC 2022 ECCE Asia, Himeji, Japan, 15/05/2022 . https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807242

The high-order (i.e., 50th~ 100th) harmonic voltage emulation is increasingly required for future grid emulators. To mitigate adverse control interactions between grid emulator and converter under test, this paper proposes a passivity-based design me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ae8236f34e1373f182892a0c4352107
https://vbn.aau.dk/da/publications/8ffb173a-aa49-4a8c-b899-40a4fae08ec4

Multi-Sampling With Real-Time Update PWM for Time-Delay Minimization of FPGA-Based Voltage-Controlled Converters

Autor: Zejie Li, Fangzhou Zhao, Shan He, Stig Munk-Nielsen, Xiongfei Wang

Publikováno v: Li, Z, Zhao, F, He, S, Munk-Nielsen, S & Wang, X 2022, Multi-Sampling With Real-Time Update PWM for Time-Delay Minimization of FPGA-Based Voltage-Controlled Converters . in 2022 IEEE Applied Power Electronics Conference and Exposition (APEC) . IEEE, I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings, pp. 1444-1449, 37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022, Houston, United States, 20/03/2022 . https://doi.org/10.1109/APEC43599.2022.9773688
Aalborg University

Time delay usually limits control bandwidth and deteriorates the stability of digital control system. This paper presents the mechanism and optimization of the multisampling with real-time update PWM method for time-delayminimization. The relationshi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6983b16525bdedd3ee5204c9748a0542
https://vbn.aau.dk/da/publications/b4f40888-dd72-4da8-9d6c-71a461a40012

GABPB1 plays a cancer-promoting role in non-small cell lung cancer

Autor: Tuo Wang, Cong Cao, Yu Fan, Jialing Xu, Tao Hua, Jie Ding, Zejie Liu, Beili Wang, Juanwen Lian

Publikováno v: Discover Oncology, Vol 15, Iss 1, Pp 1-15 (2024)

Abstract Background GABPB1, the gene that encodes two isoforms of the beta subunit of GABP, has been identified as an oncogene in multiple malignant tumors. However, the role and mode of action of GABPB1 in malignant tumors, especially in lung cancer

Externí odkaz: https://doaj.org/article/03faa9885d4c49598923ab3940c591aa

Modular Multilevel Converter With Partial Energy Storage System for Frequency Support

Autor: Pan Zixun, Xiaofeng Yang, Haibo Tao, Yanbin Zhang, Zejie Li

Publikováno v: 2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2).

Frequency fluctuation becomes one of the urgent issues with the ever-increasing penetration of power electronics converters in the grid. This paper proposes a modular multilevel converter with partial energy storage system (MMC-PESS) where the arm is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e9fbea303a41431e86c26edef6c9f39
https://doi.org/10.1109/ei250167.2020.9346580