Results 231 to 240 of about 365,222 (314)

Impacts of Phase-Locked Loop Dynamic on the Stability of DC-Link Voltage Control in Voltage Source Converter Integrated to Weak Grid

IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2022
This paper investigates the impact of phase-locked loop (PLL) dynamic on the stability of DC-link voltage control (DVC) in voltage source converter (VSC) attached to weak grid.
Yunhui Huang, Lingyun Wang, Sidong Zhang, D. Wang, Xiangtian Deng, G. Zhu   +5 more
semanticscholar   +1 more source

Inter Harmonic THD Amplification of Voltage Source Converter: Concept and Case Study

IEEE transactions on power electronics, 2020
In this letter, with the consideration of both PLL and the inter-harmonic voltage perturbation, a technical concept of “inter-harmonic total harmonic distortion (THD) amplification” has been presented, by which a hidden output feature of voltage source ...
Chuanchuan Hou, Miao Zhu, Zhengzhao Li, Y. Li, X. Cai   +4 more
semanticscholar   +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 Source Converter Control Under Unbalanced Grid Voltage

2021
The conventional control of the voltage source converter (VSC) assumes that the input voltage is balanced. However, unbalanced voltage is a phenomenon that occurs frequently in actual industrial sites. If the grid voltage is unbalanced, THD increases due to voltage negative component, and low harmonic components appear in DC-link voltage, which ...
Ahmed G. Abo-Khalil, Ali M. Eltamaly
openaire   +1 more source

Comparison of voltage source converters and Z-source converters for electric vehicles

Emerging Materials Research, 2021
Voltage source and current source converters are used in industrial applications as either boost or buck converters for a defined power flow direction. These operational modes limit these converters to be utilized on their own in hybrid and electric vehicle (EV) applications.
Selin Ozcira Ozkilic, Cagatay Dursun
openaire   +2 more sources

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

Controllers for voltage source converters

2013 International Conference on Emerging Trends in Communication, Control, Signal Processing and Computing Applications (C2SPCA), 2013
The power system is dependent on control of power and voltage for its stability and reliability. Voltage Source Converter (VSC) technology has the advantage of being able to almost instantly change its working point within its capability limit. Due to this advantage, VSC can be used to support the system to maintain active power or output voltage ...
Soniya Agrawal, R.S. Geetha
openaire   +1 more source

Voltage source converter in high voltage applications: multilevel versus two-level converters

9th IET International Conference on AC and DC Power Transmission (ACDC 2010), 2010
This paper presents a comparison between two-level and multilevel converters for medium-voltage applications. The comparison focuses on issues such as waveform quality, voltage and current stresses on the switching devices, switching frequency per device, and conversion losses (mainly, on-state and switching losses).
Zhang, Yushu, Adam, Grain Philip, Lim, Tee, Finney, Stephen, Williams, Barry   +4 more
openaire   +1 more source

Fundamental Analysis of Voltage and Power Stability of Single-Infeed Voltage-Source Converter HVDC Systems

IEEE Transactions on Power Delivery, 2019
This paper presents a comprehensive and fundamental analysis of the steady-state voltage and power stability of single-infeed voltage-source converter (VSC) HVDC systems.
D. Aik, G. Andersson
semanticscholar   +1 more source

L-Index Modulated Voltage Source Converter

International Journal of Emerging Electric Power Systems, 2008
A strategy is presented for the self-tuning of a voltage source converter (VSC) based Flexible AC Transmission Systems (FACTS) according to the prevailing system condition. L-index, which is a power system voltage stability status indicator, and its associated parameters are used to automatically regulate the modulation signal of the VSC.
Damian O Dike, Satish M Mahajan
openaire   +1 more source