Results 61 to 70 of about 19,317 (224)

Thyristor rectifiers with digital control units based on microcontroller 80C196 for uninterruptible power supply systems [PDF]

Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2011
In this paper the thyristor rectifiers with digital control units developed in Institute 'Nikola Tesla' are presented. Digital control units of the types 'DRI 05' and 'DRI 07' are based on microcontroller 'Intel' 80C196KB16.
Vukić Vladimir
doaj   +1 more source

Accuracy Improvement of the 2S‐DIRK Method for EMT Simulations of Highly Nonlinear Circuits

IEEJ Transactions on Electrical and Electronic Engineering, Volume 20, Issue 9, Page 1366-1373, September 2025.
Power electronics converters used for HVDC transmission, renewable‐energy interconnection, and system control now play an important role in power systems. Since power electronics converters control power by fast switching of semiconductor devices, the electromagnetic transient (EMT) simulations of power systems including such power electronics ...
Toshiaki Kikuma, Kiyoshi Takenaka, Taku Noda, Tatsuhito Nakajima   +3 more
wiley   +1 more source

Extending low‐temperature sintering technique to large‐sized whole‐wafer power semi‐conductor devices

High Voltage, Volume 10, Issue 4, Page 1053-1060, August 2025.
Abstract With the enormous growth in the capacity of electrical equipment, power semi‐conductor devices are developing rapidly towards larger size and higher capacity. To suppress the thermal resistance and achieve efficient heat dissipation, the authors focus on developing a low‐temperature sintering technique for wafer‐level high‐power semi‐conductor
Chen Yang, Chunpin Ren, Chenxiao Huang, Qiao Qiao, Hao Zhang, Jiapeng Liu, Yanzhong Tian, Jianhong Pan, Xiaozhao Li, Xiaoguang Wei, Lei Liu, Jinpeng Wu, Guisheng Zou, Rong Zeng   +13 more
wiley   +1 more source

Solar powered actuator with continuously variable auxiliary power control [PDF]

, 1984
A solar powered system is disclosed in which a load such as a compressor is driven by a main induction motor powered by a solar array. An auxiliary motor shares the load with the solar powered motor in proportion to the amount of sunlight available, is ...
Nola, F. J.
core   +1 more source

Static VAr Compensator Control Using Phasor Measurement Unit Feedback Signals for Voltage Stability Improvement in Power Systems

Energy Science &Engineering, Volume 13, Issue 7, Page 3569-3587, July 2025.
Static VAr Compensators can provide significant improvement in power system stability. Phasor Measurement Units are used in combination with SVCs for fast and reliable control of its operation. By combining the VAr control and Voltage Regulation control methods of the SVC, superior performance is obtained.
Faris Alsalem, Ayman Faza
wiley   +1 more source

Optimal Reactive Power Planning Using FACTS Devices for Voltage Stability Enhancement in Power Transmission Systems

Energy Science &Engineering, Volume 13, Issue 6, Page 2720-2756, June 2025.
Series and Shunt Reactive compensation can be used to improve voltage stability. The L‐index and Fast Voltage Stability Index are used to evaluate stability. Cost of reactive compensation is included directly in the optimization process. Multi‐objective optimization determines the optimal sizing of FACTS devices.
Rawan Abu Zeitawyeh, Ayman Faza
wiley   +1 more source

High‐Entropy Energy for Self‐Powered Systems

SmartSys, Volume 1, Issue 2, June 2025.
ABSTRACT In energy constrained application scenarios, self‐powered systems (SPSs) are gradually emerging as a core technological pathway for enabling distributed intelligent sensing. High‐entropy energy, such as micro‐wind, vibrations, water motion, and human activity, is widely available but difficult to harness due to its low density, randomness, and
Fangjing Xing, Xiaobo Gao, Wei Gao, Yanshuo Sun, Zilong Zhao, Zhong Lin Wang, Baodong Chen   +6 more
wiley   +1 more source

Remaining Useful Life Prediction of Thyristors for UHVDC Converter Valve Based on Bivariate Nonlinear Wiener Process

IET Power Electronics
Remaining useful life (RUL) prediction is a key technology for prognostics and health management (PHM). However, the conventional thyristor RUL prediction method that solely relies on a single degradation indicator proves insufficient in comprehensively ...
Yujiao Zhang, Chao Zhang, Zhong Chen, Lin Zhu, Di Hu, Xiongfeng Huang   +5 more
doaj   +1 more source

Electrodynamic braking in high-speed rail transport [PDF]

Transport, 2007
The paper considers electrodynamic braking of trains, which is of particular importance for high-speed railway transport from theoretical and technical perspectives. Braking methods used for high-speed trains should ensure compatibility and redundancy of
L. Liudvinavičius, L. P. Lingaitis
doaj  

Analysis of DC offset in fault current caused by machines in a medium voltage distribution network

The Journal of Engineering, 2019
This study presents a study on the time when the short-circuit fault current in an MV distribution network will cross the zero point in the presence of DC offset affected by the local synchronous and/or induction machines.
Erfan Bashar, Qin Han, Qin Han, Ruizhu Wu, Li Ran, Olayiwola Alatise, Samuel Jupe   +6 more
doaj   +1 more source