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Asymmetrical Low-Voltage Ride-Through Control Strategy Based-on PBC With Virtual Voltage Compensation for Voltage-Controlled VSG

IEEE transactions on industrial electronics (1982. Print)
Grid-forming (GFM) inverters have the advantages of voltage and frequency support in weak grid. However, unlike grid-following inverters, GFM inverters present a more challenging picture during asymmetrical voltage sag.
Shumei Chi   +5 more
semanticscholar   +1 more source

Voltage rise mitigation and low voltage ride through capabilities for grid-connected low voltage microgrids

2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017
The total real power injected by distributed renewable energy sources (RES) in the low voltage (LV) grids can cause voltage rise effects during light load scenarios. Integrating RES in microgrid architectures can result in improved power quality of the electrical grid, by avoiding the voltage rise effect from occurring and also by providing ancillary ...
Alexander Micallef   +1 more
openaire   +1 more source

An Adaptive Low-Voltage Ride-Through Method for Virtual Synchronous Generators During Asymmetrical Grid Faults

IEEE Transactions on Sustainable Energy
Existing low-voltage ride-through (LVRT) methods of virtual synchronous generators (VSGs) are facing the problem of inverter damage due to prolonged overcurrent caused by the delay in fault detection.
Rui Luo, Houlei Gao, F. Peng, Yifei Guo
semanticscholar   +1 more source

Low Voltage Ride Through Characteristics of Grid Forming inverters

2020 21st International Scientific Conference on Electric Power Engineering (EPE), 2020
With the certainty of the high share of power electronics in power grid, algorithms for various grid forming inverters have emerged in academia. Due to the grid synchronization strategy of the grid forming inverter is completely different from the current grid following inverters, its dynamic characteristics during grid faults are also different.
Ziqian Zhang   +4 more
openaire   +1 more source

Low voltage ride through capability of single-phase induction machines

e & i Elektrotechnik und Informationstechnik, 2018
Stochastically occurring voltage sags as they may occur with low quality of the power supply may significantly affect the operational behavior of single-phase starting and running capacitor assisted induction machines. In contrast to three-phase machines which are still subjected to a rotating field, even during voltage sags, the single-phase machines ...
Johann Peter Bacher, Annette Mütze
openaire   +1 more source

Research on Low Voltage Ride Through Technology of Wind Farm

2020 IEEE Sustainable Power and Energy Conference (iSPEC), 2020
Adopting the idea of time-sharing control, respectively put forward the wind turbine protection scheme of sliding mode variable structure control and the reactive power optimization scheme of variable droop coefficient. First, in the dq-axis coordinate system, the transient mathematical model of the double-fed induction generator rotor side is improved,
Jianhua Yu, Huaizhi Wang, Jianchun Peng
openaire   +1 more source

Bifurcation Analysis and Criterion of Voltage Oscillation Induced by Low Voltage Ride Through Control in Renewable Energy Stations

IEEE Transactions on Circuits and Systems - II - Express Briefs
The voltage stability issue of renewable energy stations (RES) cannot be ignored. In this brief, for the Voltage Oscillation Instability phenomenon caused by the Low voltage ride through during High active power output of the RES with No faults (VOI-LHN),
He Kong   +5 more
semanticscholar   +1 more source

Low Voltage Ride Through of Wind Energy Systems

2017
This chapter titled, “Low Voltage Ride Through of Wind Energy Systems” focuses on the importance of low voltage ride through (LVRT) of wind turbines. The investigation of some selected grid codes has revealed that LVRT has different requirements in different grid codes.
Mehrdad, Tarafdar H, Muttaqi, Kashem M
openaire   +2 more sources

Low voltage ride through and fault ride through capability of 40kw PV model grid connected

2016 Saudi Arabia Smart Grid (SASG), 2016
Nowadays, progressive grow in renewable energy sources such as (wind, solar energy) pursued distribution companies to update its code in order to achieve maximum power available and guarantee electrical reliability and quality. Egypt diversify many techniques to facilitate introducing new renewable energy technologies, such as, a new program to ...
Sabah Mashaly, Mokhtar Hussien Abdallah
openaire   +1 more source

Sequential Dynamics in Photovoltaic Power Station Under Low Voltage Ride Through

IEEE transactions on energy conversion
The conventional simplification of a photovoltaic (PV) station as a one-off trip, in case of its failure in low voltage ride through (LVRT) is often inadequate for analyzing cascading failures in modern power systems with non-unique timescales.
Guopei Zhang, Xiaohui Wang, Feng Gao
semanticscholar   +1 more source

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