Results 71 to 80 of about 9,068,525 (239)

Hybrid diesel generator/renewable energy system performance modeling

, 2014
Published ArticleA Hybrid Energy System may been defined as a system in which different energy sources (solar, wind, hydro, diesel generator, etc.) as well as energy storage systems are interconnected to meet the load energy demand at any time.
Vermaak, Herman Jacobus, Kusakana, Kanzumba   +1 more
core  

A review of energy storage technologie sfor marine current energy systems [PDF]

, 2013
Increasing concerns about the depletion of fossil resources and the issue of environment lead to a global need for producing more clean energy from renewable sources. Ocean is appreciated as a vast source of renewable energies.
CHARPENTIER, Jean-Frederic, SCUILLER, Franck, BENBOUZID, Mohamed, ZHOU, Zhibin, Frédéric Charpentier, Jean, TANG, Tianhao   +5 more
core   +1 more source

Forward‐Biased Perovskite Photodiodes for In‐Sensor Optical Change Sensing

Advanced Functional Materials, EarlyView.
A forward‐biased perovskite photodiode is introduced as an in‐sensor analog preprocessing unit that uses current balancing between photocurrent and injection current to generate optical changes relative to programmable optical reference levels. The device directly converts reference‐relative optical changes into bipolar current signals, enabling sensor‐
Eungseon Yeon, Je‐Jun Lee, Somin Yun, Sangin Hahn, Chanhyeok Kim, Jinsoo Park, Jung Pyo Hong, Seong‐Jun Han, Jung Woo Kim, Jeong Hwan Lee, Subin Jeon, Youngmin Kim, Gunuk Wang, Hanul Min, Do Kyung Hwang   +14 more
wiley   +1 more source

Performance Analysis of a Grid-connected High Concentrating Photovoltaic System under Practical Operation Conditions

Energies, 2016
High concentrating photovoltaic (HCPV) is a promising technique for the practical commercial utilization of solar energy. However, the performance of a HCPV system is significantly influenced by environmental parameters such as solar direct normal ...
Zhe Mi, Jikun Chen, Nuofu Chen, Yiming Bai, Wenwang Wu, Rui Fu, Hu Liu   +6 more
doaj   +1 more source

Characteristics of PMU Phase Angle Difference Induced by Frequency Deviation of Crystal Oscillator and its Detection Method

IEEE Access, 2020
Phasor measurement unit (PMU), which could provide high-frequency phasors including the amplitude and phase angle synchronized with Global Positioning System (GPS)/BeiDou Navigation Satellite System (BDS) signal, plays a vital role in dynamic monitoring ...
Ancheng Xue, Shuang Leng, Yongzhao Lao, Quan Xu, Yuehuan Lin, Li Wang, Feiyang Xu, He Kong, Zhiyong Yuan, Guoen Wei   +9 more
doaj   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Interaction energy-based power coupling oscillation analysis and suppression of grid-forming converter connected system

International Journal of Electrical Power & Energy Systems
The power coupling effect of the grid-forming converter will cause instability oscillation when it connects to low-voltage short-distance transmission lines. To solve this problem, this paper presents an energy interaction analysis method for oscillation
Yaqi Shen, Zhuoyang Li, Jing Ma, Letian Wang, Ningsai Su, Jialong Song   +5 more
doaj   +1 more source

A New Robust Identification Method for Transmission Line Parameters Based on ADALINE and IGG Method

IEEE Access, 2020
Accurate transmission line parameters are the basis of power system calculations. Aiming at obtaining accuracy online transmission line parameters in the case of large random noises even bad data in Phasor Measurement Unit (PMU) measurements, which ...
Ancheng Xue, He Kong, Yongzhao Lao, Quan Xu, Yuehuan Lin, Li Wang, Feiyang Xu, Shuang Leng, Zhiyong Yuan, Guoen Wei   +9 more
doaj   +1 more source

Design of a photovoltaicewind charging station for small electric Tuketuk in D.R.Congo

, 2014
Published ArticleRenewable energy charging stations can play a key role in the successful development and deployment of electric vehicles in the areas not connected to the electrical grid.
Vermaak, Herman Jacobus, Kusakana, Kanzumba   +1 more
core  

High‐Performance, Air‐Stable and Eco‐Friendly Terpene‐Processed Organic Solar Cells via Solvent‐Composition‐Controlled Film Formation Kinetics

Advanced Functional Materials, EarlyView.
Solvent‐composition‐controlled film formation enables high‐performance (efficiency = 18.66%) and air‐stable terpene‐processed organic solar cells. An optimized eucalyptol/tetralin ratio of 50:50 (v/v) balances molecular solvation and aggregation kinetics, producing favorable nanoscale phase separation and vertical composition gradients.
Hyerin Jeon, Seungho Lee, Jinseck Kim, Jin‐Woo Lee, Bumjoon J. Kim   +4 more
wiley   +1 more source