Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Chaohai Zhang"'
Publikováno v:
IET Renewable Power Generation, Vol 17, Iss 8, Pp 2137-2147 (2023)
Abstract When a wind farm (WF) approaches the end of its life cycle, repowering is another opportunity for wind energy to prove its value. This paper proposes an optimization framework to guide the WF repowering, considering the power generation, the
Externí odkaz:
https://doaj.org/article/c9c1272d8bfc401fb58f65c080ab744b
Publikováno v:
Machines, Vol 11, Iss 11, p 1004 (2023)
Vibration monitoring (VM) is an important tool for fault diagnosis in key components of wind turbine gearboxes (WTGs). However, due to the influence of white noise and random interference, it is difficult to realize high-quality denoising of WTG-VM s
Externí odkaz:
https://doaj.org/article/1ef1639c7b2c4b619d1c8f869a0d57a4
Publikováno v:
Journal of Modern Power Systems and Clean Energy, Vol 10, Iss 2, Pp 482-491 (2022)
The energy consumption of buildings accounts for approximately 40% of total energy consumption. An accurate energy consumption analysis of buildings can not only promise significant energy savings but also help estimate the demand response potential
Externí odkaz:
https://doaj.org/article/95ad61dbd50940d58fc00848daff27e5
Autor:
Fanjun Kong, Ke Zhao, Jingtan Ma, Tianxin Zhuang, Hongtao Li, Shan Gao, Jianjun Liu, Chaohai Zhang
Publikováno v:
Frontiers in Energy Research, Vol 10 (2022)
Gas-insulated equipment is an important part of the power system owing to its advantages of small footprint, large transmission capacity, and high reliability. Detection of insulation defects partial discharge (PD) is important for its operation and
Externí odkaz:
https://doaj.org/article/211edf1367a444a497b729d04ba06abf
Autor:
Jun Jiang, Judong Chen, Jiansheng Li, Xiaoping Yang, Ricardo Albarracín‐Sánchez, Prem Ranjan, Chaohai Zhang
Publikováno v:
High Voltage, Vol 6, Iss 4, Pp 684-692 (2021)
Abstract As an essential component of power transformers, the detection and diagnosis of incipient partial discharge (PD) activities of bushings are of great significance. A 35‐kV oil‐impregnated paper (OIP) bushing is investigated. The bushing i
Externí odkaz:
https://doaj.org/article/78f9d279613c4a639c54f4d508496a83
Publikováno v:
IET Generation, Transmission & Distribution, Vol 15, Iss 13, Pp 2008-2017 (2021)
Abstract The accuracy and feasibility of the traditional XY model of transformer oil–paper insulation system are disputable since it ignored the effect of non‐uniform aging and conductance on dielectric response property. Given this issue, this w
Externí odkaz:
https://doaj.org/article/ef19710c7141460cb4c7139b56160000
Fault diagnosis of the bushing infrared images based on mask R‐CNN and improved PCNN joint algorithm
Publikováno v:
High Voltage, Vol 6, Iss 1, Pp 116-124 (2021)
Abstract Bushings are served as an important component of the power transformers; it's of great significance to keep the bushings in good insulation condition. The infrared images of the bushing are proposed to diagnose the fault with the combination
Externí odkaz:
https://doaj.org/article/5978a8f846554b068e1eb85a10ecb3be
Publikováno v:
Energies, Vol 16, Iss 3, p 1396 (2023)
Chemical compounds dissolved in insulating oil, as indicators can excellently monitor the paper aging condition, which has attracted increasing interest in areas of transformer condition monitoring and fault diagnosis. Because of their outstanding fe
Externí odkaz:
https://doaj.org/article/36021e61f8154d2b8153a8fec4219513
Publikováno v:
IEEE Access, Vol 7, Pp 47221-47229 (2019)
The increasing household loads make series arc faults more complex, which are difficult to be detected by traditional circuit breakers and lead to the frequent occurrence of residential fire accidents. In this paper, a comprehensive approach of compl
Externí odkaz:
https://doaj.org/article/6b706252bb574a75904cae8102fc5e4c
Publikováno v:
IEEE Access, Vol 7, Pp 55707-55720 (2019)
The mechanism of overvoltage formation in the breaking process of a dry-type air-core shunt reactor (DTACSR) is studied in this paper. In addition, the effect of the overvoltage on the interturn insulation characteristics of the DTACSR is also discus
Externí odkaz:
https://doaj.org/article/ac06129a1e854a5cb00d041110cc5d1b