Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Zhaohui Cen"'
Publikováno v:
Aerospace, Vol 11, Iss 4, p 271 (2024)
The starter generator, characterized by controllable starting torque and disturbance in generator load torque, poses challenges for the multi-electric aero engine control. The key to addressing this issue lies in multi-electric aero engine control wi
Externí odkaz:
https://doaj.org/article/73130577148448d281cba082cff98c8d
Publikováno v:
Energies, Vol 13, Iss 5, p 1021 (2020)
Being reliant on Air Conditioning (AC) throughout the majority of the year, desert countries with extremely hot weather conditions such as Qatar are facing challenges in lowering weariness cost due to AC On-Off switching while maintaining an adequate
Externí odkaz:
https://doaj.org/article/f1710c64225947cabb871cb2643dac5d
Autor:
Zhaohui Cen
Publikováno v:
International Journal of Photoenergy, Vol 2015 (2015)
Maximum power point tracking (MPPT) for photovoltaic (PV) arrays is essential to optimize conversion efficiency under variable and nonuniform irradiance conditions. Unfortunately, conventional MPPT algorithms such as perturb and observe (P&O), increm
Externí odkaz:
https://doaj.org/article/ab86a773aa4047258a052a9124471fec
Autor:
Pierre Kubiak, Zhaohui Cen
Publikováno v:
International Journal of Energy Research. 44:12444-12459
Publikováno v:
Solar Energy Materials and Solar Cells. 180:280-288
The ultra-strong solar irradiance conditions in Qatar area have natural benefits for large-scale solar photovoltaic (PV) farm deployment. However, climate issues such as soiling, extremely high temperatures and sand storms are real challenges for sta
Publikováno v:
Journal of Power Sources. 372:16-23
The introduction of Li-ion batteries for grid applications has become evidence as the cost per kWh is continuously decreasing. Although the Li-ion battery is a mature technology for automotive applications and portable electronics, its use for statio
Autor:
Paul Stewart, Zhaohui Cen
Publikováno v:
IEEE Transactions on Reliability. 66:148-160
DC–DC power converters such as buck converters are susceptible to degradation and failure due to operating under conditions of electrical stress and variable power sources in power conversion applications, such as electric vehicles and renewable en
Publikováno v:
2019 7th International Renewable and Sustainable Energy Conference (IRSEC).
In this study, a pragmatic engineering approach is proposed to assist in addressing the high-power consumption for cooling specifically, peak demand issues in countries with desert climate conditions. In this approach, an improved control scheme for
Publikováno v:
2019 7th International Renewable and Sustainable Energy Conference (IRSEC).
Located as a Peninsula in the east of Arabia and bordering the Persian Gulf, Qatar has a unique desert weather condition with strong irradiance, high temperature, high humidity, and soiling issues. To maintain a comfort level of living under this ari
Publikováno v:
2019 International Conference on Smart Grid Synchronized Measurements and Analytics (SGSMA).
The analysis of electrical wave measurements on an electricity grid obtained through Phasor Measurement Units (PMUs) offers a unique opportunity to detect power system faults in real time. The goal of this study is to evaluate the use of classificati