Results 231 to 240 of about 8,657,619 (313)

Sustainable high-voltage source based on triboelectric nanogenerator with a charge accumulation strategy

Energy & Environmental Science, 2020
Sustainable high-voltage TENG (SH-TENG) based on charge accumulation strategy can provide an unprecedented high voltage output.
Rui Lei, Yuxiang Shi, Yafei Ding, Jinhui Nie, Shuyao Li, Fan Wang, Hua Zhai, Xiangyu Chen, Zhong Lin Wang   +8 more
semanticscholar   +1 more source

A pulse controllable voltage source based on triboelectric nanogenerator

, 2020
The large matching impedance and low-current output characteristics of the triboelectric nanogenerator (TENG) make the effective output of TENG severely limited for directly powering electronic devices.
Kequan Xia, Di Wu, Jiangming Fu, Zhiwei Xu   +3 more
semanticscholar   +1 more source

Voltage source inverters for high-power, variable-voltage DC power sources

IEE Proceedings - Generation, Transmission and Distribution, 2001
The paper discusses the applications of voltage source inverter (VSI) based power electronic systems for interfacing variable-voltage DC sources to the grid. A variable-speed wind power conversion system is used for illustration, where the VSI-based interface needs to convert a variable DC voltage to a nearly constant AC voltage with high-quality power.
Z. Chen, E. Spooner
openaire   +1 more source

Adaptive Grid-Synchronization Based Grid-Forming Control for Voltage Source Converters

IEEE Transactions on Power Systems
This letter presents a grid-forming control with adaptive grid-synchronization capability for voltage source converters (VSCs). The proposed control has both phase-locked loop (PLL) and power synchronization loop (PSL), which makes it exhibit hybrid ...
Huangqing Xiao, Hongliang He, Lidong Zhang, Teng Liu   +3 more
semanticscholar   +1 more source

Exploiting voltage support of voltage-source HVDC

IEE Proceedings - Generation, Transmission and Distribution, 2003
The inherent voltage support in voltage-source converters (VSCs) which form a back-to-back VSC–HVDC asynchronous link can increase the power transmissibility by a factor of 1.68 if the installation is sited at the midpoint of the radial AC transmission line.
Z. Huang, B.T. Ooi, L.-A. Dessaint, F.D. Galiana   +3 more
openaire   +1 more source

New high-frequency voltage-controlled voltage sources†

International Journal of Electronics, 1984
Two new voltage-controlled voltage sources (VCVSs), one inverting and the other non-inverting, arc presented. They have larger flat bandwidth and effective bandwidth than the conventional single operational amplifier VCV.Ss. Their design and tuning are quite simple.
RATHORE, TS, PAI, KR
openaire   +2 more sources

Stability Analysis of Grid-Connected Voltage-Source Converters Using SISO Modeling

IEEE transactions on power electronics, 2019
The interaction of a grid-connected voltage-source converter with a weak grid is of significant interest. In this paper, the converter together with the grid impedance is modeled as a single-input single-output (SISO) system.
Hongyang Zhang, L. Harnefors, Xiongfei Wang, Hong Gong, J. Hasler   +4 more
semanticscholar   +1 more source

Voltage source inverter

2015 International Conference on Energy Systems and Applications, 2015
In this paper, the different types of voltage sourse inverters are studied. The voltage source inverters are the main component of the variable frequency drives(VFD). In the medium voltage variable speed drive market, the various techniques have progressed with constituents, design, and reliability.
openaire   +1 more source

Voltage source based voltage-to-time converter

2015 IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS), 2015
Voltage-to-time converter (VTC) circuits are used as the core component of single-slope analog to digital converters (ADCs). These VTC circuits have traditionally depended on the use of a constant current source as part of their implementation in order to have good linearity.
Thomas Stout, Alexander Dean
openaire   +1 more source

Voltage Dip Mitigation Using Shunt-Connected Voltage Source Converter

IEEE Transactions on Power Electronics, 2006
In this paper, a Voltage Source Converter (VSC) connected in shunt with the grid to mitigate voltage dips for sensitive processes is presented. The VSC maintains the magnitude of the grid voltage at the connection point constant by injecting reactive power to compensate for the voltage dip. This is achieved by using a cascade controller, constituted by
Massimo Bongiomo, Jan Svensson
openaire   +1 more source