Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Xiangping KONG"'
Autor:
Sheng Qian, Fusheng Wang, Haihong Huang, Jingjiao Lin, Zhongma Wang, Xiangping Kong, Liangcheng Liu, Wei Tong, Guiyang Cui
Publikováno v:
Systems Science & Control Engineering, Vol 12, Iss 1 (2024)
Modular Multilevel Converters (MMCs) play a crucial role in high-voltage DC (HVDC) systems due to their adaptable control and swift response capabilities. However, AC side faults could introduce asymmetric double-line frequency components into the MM
Externí odkaz:
https://doaj.org/article/0c8a61cb92394bb4b810fe04234279c9
Autor:
Puyu Wang, Jinyuan Song, Fangyu Liang, Fang Shi, Xiangping Kong, Guangen Xie, Xiao-Ping Zhang, Xinxin Gu
Publikováno v:
Protection and Control of Modern Power Systems, Vol 6, Iss 1, Pp 1-12 (2021)
Abstract There are various types of distributed generators (DGs) with different grid integration strategies. The transient characteristics of the fault currents provided by the DGs are different to those of conventional synchronous generators. In thi
Externí odkaz:
https://doaj.org/article/228650547223447e9cc9d1b79383cc3d
Autor:
Ning Zhu, Hongmei Jin, Xiangping Kong, Yanyun Zhu, Xiaomei Ye, Yonglan Xi, Jing Du, Bingqing Li, Menghan Lou, Ghulam Mustafa Shah
Publikováno v:
Microbial Cell Factories, Vol 19, Iss 1, Pp 1-14 (2020)
Abstract Background Enzymatic hydrolysis is a key step in the conversion of lignocellulosic polysaccharides to fermentable sugars for the production of biofuels and high-value chemicals. However, current enzyme preparations from mesophilic fungi are
Externí odkaz:
https://doaj.org/article/065e1eb4b6f549cda9469cf23131c0b4
Publikováno v:
Protection and Control of Modern Power Systems, Vol 4, Iss 1, Pp 1-12 (2019)
Abstract In view of the operating characteristics for voltage sags of AC side of the power electronic transformer(PET), a low-voltage ride through(LVRT) strategy adapted to bidirectional power exchange of PET is proposed for the purposes of maintaini
Externí odkaz:
https://doaj.org/article/da77ee74534e4b78ab3a6606c9ec5dcb
Publikováno v:
Frontiers in Bioengineering and Biotechnology, Vol 9 (2021)
Trace metals are essential constituents of cofactors and enzymes and that their addition to anaerobic digesters increases methane production. Many trace elements are contained in herbal-extraction process residues (HPR). The present study concerns th
Externí odkaz:
https://doaj.org/article/28c3a1804b5f4a00b9f6b12b6bfb7063
Autor:
Chao Wang, Fengxue Xin, Xiangping Kong, Jie Zhao, Weiliang Dong, Wenming Zhang, Jiangfeng Ma, Hao Wu, Min Jiang
Publikováno v:
Biotechnology for Biofuels, Vol 11, Iss 1, Pp 1-10 (2018)
Abstract Background The formation of by-products, mainly acetone in acetone–butanol–ethanol (ABE) fermentation, significantly affects the solvent yield and downstream separation process. In this study, we genetically engineered Clostridium acetob
Externí odkaz:
https://doaj.org/article/325832a049d243eaa298922dbe50b3bf
Publikováno v:
Journal of Modern Power Systems and Clean Energy, Vol 6, Iss 1, Pp 181-189 (2017)
Abstract Control strategy of unified power flow controller (UPFC) utilizing dq decoupling control is deduced in this paper, which can closely follow the control orders of the active and reactive power. The subsynchronous resonance (SSR) characteristi
Externí odkaz:
https://doaj.org/article/f7855ff4d4724185b0361d29affbd37e
Publikováno v:
The Journal of Engineering (2019)
There may be a commutation failure during a fault or start-up of the UHVDC inverter side. The law of commutation failure process in UHVDC converter is studied here. First, the cause of inverter commutation failures is briefly introduced. Then, the ge
Externí odkaz:
https://doaj.org/article/13f1b36b96974c9fb2d6a4060d35eb86
Publikováno v:
Journal of Modern Power Systems and Clean Energy, Vol 4, Iss 1, Pp 10-18 (2016)
The unified power flow controller (UPFC) based on modular multilevel converter (MMC) is the most creative flexible ac transmission system (FACTS) device. In theory, the output voltage of the series MMC in MMC-UPFC can be regulated from 0 to the rated
Externí odkaz:
https://doaj.org/article/1c22fc383e5a4894b2b3a8186d46fef0
Publikováno v:
The Scientific World Journal, Vol 2014 (2014)
In order to solve the problems of the existing wide-area backup protection (WABP) algorithms, the paper proposes a novel WABP algorithm based on the distribution characteristics of fault component current and improved Dempster/Shafer (D-S) evidence t
Externí odkaz:
https://doaj.org/article/40907cd331164d429c8bd2b539e0d2d0