Results 1 to 10 of about 360,817 (268)

Effects on Frequency Stability of Power System for Photovoltaic High-Penetration Ratio Grid-Connected Power Generation

Energies, 2023
In this paper, the effects of three typical operation modes, namely short-circuit fault, load change, and chemical energy storage on the frequency of a regional power grid after photovoltaic asynchronous interconnection were studied with different ...
Hui Guo, Shuai Zheng, Donghai Zhang, Pengfei Gao, Wenzhe Miao, Zongliang Zuo   +5 more
doaj   +2 more sources

Preliminary Characterization of Robust Detection Method of Solar Cell Array for Optical Wireless Power Transmission with Differential Absorption Image Sensing

Photonics, 2022
In an optical wireless power transmission (OWPT) system, position and size of the photovoltaic device (PV) should be accurately determined from the light source position.
Kaoru Asaba, Kenta Moriyama, Tomoyuki Miyamoto   +2 more
doaj   +1 more source

Relaxation of Beam Irradiation Accuracy of Cooperative Optical Wireless Power Transmission in Terms of Fly Eye Module with Beam Confinement Mechanism

Photonics, 2022
In optical wireless power transmission (OWPT) systems, since beam size is finite, and relative position and attitude between transmitter and receiver is not always stationary, both beam alignment and shaping accuracies are important parameters.
Kaoru Asaba, Tomoyuki Miyamoto
doaj   +1 more source

System Level Requirement Analysis of Beam Alignment and Shaping for Optical Wireless Power Transmission System by Semi–Empirical Simulation

Photonics, 2022
Since optical wireless power transmission (OWPT) transmits power by light, which has a narrow diffraction angle feature, it is a strong candidate for wireless power transmission systems supporting long ranges.
Kaoru Asaba, Tomoyuki Miyamoto
doaj   +1 more source

New energy power optimal distribution method for high proportion new energy power grid [PDF]

电力工程技术, 2022
Large scale new energy access to weak alternating current (AC) power grid is prone to transient overvoltage,phase-locked synchronous stability and other problems,which bring problems for the full use of new energy.
REN Chong, KE Xianbo, WANG Jili, WANG Guochun, ZHAO Rongzhen   +4 more
doaj   +1 more source

Influence of the Power Generation Capacity of the Structural Parameters of a Piezoelectric Bimorph

Shock and Vibration, 2021
With the popularization of integrated circuits, MEMS, and portable electronic devices, chemical batteries have many disadvantages as the main energy supply method, such as large size, high quality, and limited energy supply life, requiring regular ...
Xiaochao Tian, Jinzhi Zhu, Zhicong Wang, Hu Wang, Yuze Sun, HaiGang Wang, Sida Zhang, Zhigang Yang   +7 more
doaj   +1 more source

Generation expansion planning for Guizhou province based on the complementary characteristics of wind and solar

Energy Reports, 2022
With the growth of wind power and solar power, power source clean transformation has become a feasible way for achieving the carbon peak target. As a hydropower resource-abundant province, Guizhou has already built Wujiang river cascade hydropower plants.
Qingsheng Li, Yu Zhang, Fan Cheng, Liangzhong Yao, Yeyan Xu, Shuai Liang, Wenxia Liu, Zhen Li   +7 more
doaj   +1 more source

Optimal PV system capacity ratio and power limit value selection based on a novel fast calculation method of IGBT junction temperature and IGBT annual damage analysis

Energy Reports, 2022
In order to solve the problem of long calculation time of insulated gate bipolar transistor (IGBT) junction temperature, the XGBoost machine learning algorithm is used to calculate IGBT junction temperature in the annual damage assessment process.
Bo Zhang, Yuan Gao, Tiecheng Li, Xuekai Hu, Enze Yang   +4 more
doaj   +1 more source

Energy and Exergy Analysis on a Blast Furnace Gas-Driven Cascade Power Cycle

Energies, 2022
Blast furnace gas is the major combustible by-product produced in the steel industry, where iron ore is reduced by coke into iron. Direct combustion of blast furnace gas after simple treatment for power generation is a common utilization method nowadays.
Hao Chen, Yiming Wang, Linbo Yan, Ziliang Wang, Boshu He, Baizeng Fang   +5 more
doaj   +1 more source

Novel Design of Speed-increasing Compound Coupled Hydromechanical Transmission on Tidal Current Turbine for Power Generation [PDF]

E3S Web of Conferences, 2020
A key topic discussed in the energy industry has long been how to steadily convert tidal energy into mechanical energy and then electrical power. Gear transmissions are widely used in mechanical systems for electrical power production, converting low ...
Dong Xiaohan, Wang Zhao, Shen Pengfei, Song Yurun, Yu Jin   +4 more
doaj   +1 more source