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Dynamic Model of Fast Steering Mirror based on Piezoelectric Actuator [PDF]

한국정밀공학회지
The fast steering mirror is now being used in industries beyond precision processing, such as space and defense. The piezoelectric fast steering mirror (PFSM), which utilizes a piezoelectric actuator, is particularly suitable for these industries as they
Yongsu Park, Geemin Lee, Dae Gyu Choi
doaj   +1 more source

Again about reliability characteristics of electrical power grids elements

E3S Web of Conferences, 2018
The reliability characteristics of the (auto)transformers and overhead transmission lines of the unified national electric grid are subjected to statistical analysis.
Abdurakhmanov Abdula, Glushkin Sergey, Plotnikov Vladislav, Shuntov Andrey   +3 more
doaj   +1 more source

Distributed PV generation estimation using multi-rate and event-driven Kalman kriging filter

IET Smart Grid, 2020
The ever-growing penetration of cost-effective photovoltaic (PV) panels within the distribution grid requires a robust and efficient method for PV system monitoring.
SM Shafiul Alam, Anthony R. Florita, Anthony R. Florita, Bri-Mathias Hodge   +3 more
doaj   +1 more source

Analytical Loss Model for Three-Phase 1200V SiC MOSFET Inverter Drive System Utilizing Miller Capacitor-Based dv/dt-Limitation

IEEE Open Journal of Power Electronics, 2022
Next-generationVariable Speed Drive (VSD) systems utilize SiC MOSFETs to achieve both high efficiency through reduced bridge-leg losses and high power density through an order-of-magnitude increase in switching frequency or reduction of the DC-link ...
Michael Haider, Simon Fuchs, Grayson Zulauf, Dominik Bortis, Johann W. Kolar, Yasuo Ono   +5 more
doaj   +1 more source

Modelling of variable-speed refrigeration for fast-frequency control in low-inertia systems

IET Smart Grid, 2020
In modern power systems, shiftable loads contribute to the flexibility needed to increase robustness and ensure security. Thermal loads are among the most promising candidates for providing such service due to the large thermal storage time constants ...
Johanna Vorwerk, Uros Markovic, Petros Aristidou, Evangelos Vrettos, Gabriela Hug   +4 more
doaj   +1 more source

Cycle Characteristics of a New High-Temperature Heat Pump Based on Absorption–Compression Revolution

Energies, 2023
A large amount of the waste heat generated during industrial production is not used, which leads to a low energy utilization rate. The recovery of industrial waste heat using heat pumps has the advantages of low energy consumption, high efficiency ...
Jian Sun, Yu Qin, Ran Liu, Guoshun Wang, Dingqun Liu, Yongping Yang   +5 more
doaj   +1 more source

Measuring Technologies for CFB Solid Circulation Rate: A Review and Future Perspectives

Energies, 2022
Solid circulation rate (Gs) represents the mass flux of circulating particles in circulating fluidized bed (CFB) systems and is a significant parameter for the design and operation of CFB reactors.
Xiandong Liu, Man Zhang, Shuangming Zhang, Yi Ding, Zhong Huang, Tuo Zhou, Hairui Yang, Guangxi Yue   +7 more
doaj   +1 more source

Analytical Calculation of the Residual ZVS Losses of TCM-Operated Single-Phase PFC Rectifiers

IEEE Open Journal of Power Electronics, 2021
Triangular-current-mode (TCM) modulation guarantees zero-voltage-switching across the mains cycle in AC-DC power converters, eliminating hard-switching with a minor ${\approx} {30}{\%}$ penalty in conduction losses over the conventional continuous ...
Michael Haider, Jon Azurza Anderson, Neha Nain, Grayson Zulauf, Johann W. Kolar, Dehong Xu, Gerald Deboy   +6 more
doaj   +1 more source

Multiple-injection dry low-NOx combustor for hydrogen-rich syngas fuel: testing and evaluation of performance in an IGCC pilot plant

Mechanical Engineering Journal, 2014
The successful development of oxygen-blown integrated coal gasification combined cycle (IGCC) technology requires gas turbines capable of achieving the dry low nitrogen oxides (NOx) combustion of hydrogen-rich syngas for low emissions and high plant ...
Tomohiro ASAI, Satoshi DODO, Mitsuhiro KARISHUKU, Nobuo YAGI, Yasuhiro AKIYAMA, Akinori HAYASHI   +5 more
doaj   +1 more source

Investigating the influence of lithium-ion batteries degradation on the parameters of the electric power storage system [PDF]

E3S Web of Conferences, 2023
This article deals with the use of a battery-based energy storage system (ESS) to ensure the required power output of power plants (PP) based on renewable energy sources (RES) integrated into the electric power system (EPS).
Bulatov Ramis, Nasyrov Rinat, Burmeyster Maxim   +2 more
doaj   +1 more source