Results 291 to 300 of about 19,719,110 (337)

Reactive power control for voltage support during type C voltage-sags

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
Grid faults are one of the most severe perturbations to deal with in grid connected systems. To support the grid under voltage-sags (dips), different reactive power control strategies are needed depending on the type of grid fault. One of the possible objectives when supporting the grid voltage under type C voltage sags could be to avoid undervoltage ...
Antonio Camacho, Miguel Castilla, Jaume Miret, José Matas, Eduardo Alarcon-Gallo, Luis García de Vicuña, Pau Martí   +6 more
openaire   +1 more source

Transient Frequency-Voltage Support Strategy for VSC-MTDC Integrated Offshore Wind Farms Based on Perturbation Observer and Funnel Control

IEEE Transactions on Sustainable Energy
To address the transient frequency and voltage stability challenges posed by low-inertia offshore wind farms (OWFs) connected through voltage source converter (VSC) based multi-terminal high voltage direct current (VSC-MTDC) system, a nonlinear ...
Wen Gao, Kaishun Xiahou, Yang Liu, Zhi-Gang Li, Q.-H. Wu, Dong-Xu Chang, Yi-Hua Zhu   +6 more
semanticscholar   +1 more source

Transient Angle Suppression and Voltage Support Control for VSG Based on Virtual Circuit Elements

IEEE transactions on industrial electronics (1982. Print)
Insufficient reactive voltage support and power angle divergence are critical issues threatening the stable operation of virtual synchronous generators (VSG) under faults.
Wei-Ye Diao, Jun Mei, Linyuan Wang, Guang-Hua Wang   +3 more
semanticscholar   +1 more source

Energy Storage Unit for Dynamic Voltage Support in Distribution Networks

Industrial Cyber-Physical Systems, 2021
The increasing participation of distributed energy resources in the low voltage distribution network prompt mandated grid-supporting activities from these entities during short-term disturbances. The primary idea of the work presented in this paper is to
B. R. Naidu, P. Bajpai, C. Chakraborty
semanticscholar   +1 more source

Improving Voltage Support in Islanded AC Microgrids During Unbalanced Short-Circuit Faults

IEEE transactions on industrial electronics (1982. Print)
In the event of a short-circuit fault in an islanded ac microgrid, grid-forming power inverters activate a resistive virtual impedance to protect themselves against over-current, whereas grid-feeding power inverters are tasked with providing voltage ...
M. Castilla, J. Miret, Á. Borrell, Josué Duarte, A. Camacho   +4 more
semanticscholar   +1 more source

Virtual Admittance Control for Providing Voltage Support using Converter Interfaced Generation

IEEE PES Innovative Smart Grid Technologies Conference Europe, 2021
The level of penetration of distributed energy sources in distribution networks has been steadily increasing in the recent years causing significant changes and fluctuations in the voltage profiles. For this reason, distributed generators are being asked
Dionysios Moutevelis, Javier Roldán-Pérez, M. Prodanović   +2 more
semanticscholar   +1 more source

Metrological support of digital electronic voltage transformers and low-power voltage transformers

Izmeritel`naya Tekhnika, 2023
Metrological support of digital electronic voltage transformers and low-power voltage transformers (sensors) is represented. The methods and reference measuring instruments of the State primary special standard of units of the ratio error and the phase displacement of AC electric voltage of power frequency in the range from to and units of electric ...
M. V. Grishin, A. V. Leonov, A. A. Kucobin   +2 more
openaire   +1 more source

Enhancing Fault Ride-Through and Voltage Support Capability for MMC-HVDC Integrated Offshore Wind Farms Based on Multi-Mode Matching

IEEE Transactions on Sustainable Energy
To cope with onshore AC faults in modular multilevel converter based high voltage direct current integrated offshore wind farms (OWF-MMC-HVDC), this paper proposes a multi-mode matching control (MMMC) approach. Mode I is active energy control.
Hongyu Zhou, W. Yao, Kangyi Sun, Qi-Hang Zong, Haiyu Zhao, Jin-Yu Wen   +5 more
semanticscholar   +1 more source

Voltage Sensitivity Analysis in Voltage Support of the China Southern Power Grid

2006 International Conference on Power System Technology, 2006
Supply support in receiver system can improve the stability of the system, especial voltage stability. As the receiver system in the China Southern power grid (the CSG), Guangdong Province's load is 70% of the CSG. The voltage support should be applied to improve stability. In this paper, many operation schemes are simulated.
Qing Zhong, Yao Zhang, Jianshe Zhang, Zhigang Wu   +3 more
openaire   +1 more source

Optimal voltage support and Stress Minimization in power networks

2015 54th IEEE Conference on Decision and Control (CDC), 2015
A standard operational requirement in power systems is that the voltage magnitudes must lie within pre-specified bounds. Conventional wisdom suggests that such a tightly regulated voltage profile should also guarantee a secure system, operating far from static bifurcation instabilities such as voltage collapse.
Marco Todescato, John W. Simpson-Porco, Florian Dörfler, Ruggero Carli, Francesco Bullo   +4 more
openaire   +1 more source