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Low-voltage ride-through simulation for microgrid systems
2017 IEEE International Conference on Electro Information Technology (EIT), 2017In contrast to the previous generation of power grid codes, recent standards require that distributed energy resources (DERs) provide low-voltage ride-through (LVRT) capabilities during grid faults. Consequently, the high penetration of DERs in today's power system requires an efficient method of controlling the active and reactive power of those ...
Elham Foruzan +2 more
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Low-Voltage-Ride-Through-Assistenzsystem für dezentrale Erzeugungseinheiten
e & i Elektrotechnik und Informationstechnik, 2014Wahrend eines Kurzschlusses im Netz nahe einem Synchrongenerator kommt es aufgrund einer verminderten Leistungsabgabe wahrend des Fehlers zu einer Beschleunigung des Rotors. Dies kann zu unerwunscht hohen Polradpendelungen bis hin zum Verlust des Synchronismus des Generators fuhren.
Norbert Essl, Herwig Renner
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Low voltage ride through(LVRT) research of DFIG
2013 25th Chinese Control and Decision Conference (CCDC), 2013Nowadays Doubly Fed Induction Generator (DFIG) is used in variable speed wind power plants extensively. Doubly fed induction generator (DFIG) has many advantages such as low cost, reduced losses with an improved efficiency, variable speed operation and improved active and reactive power control capabilities.
Li Lianbing, Zhang Peng
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Low Voltage Ride Through Characteristics of Grid Forming inverters
2020 21st International Scientific Conference on Electric Power Engineering (EPE), 2020With 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
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Fast Coordinated Control of DFIG Wind Turbine Generators for Low and High Voltage Ride-Through [PDF]
Energies, 2014 This paper presents a fast coordinated control scheme of the rotor side converter (RSC), the DC chopper and the grid side converter (GSC) of doubly fed induction generator (DFIG) wind turbine generators (WTGs) which is to improve the low voltage ride ...
Qiuwei Wu, Hongbin Sun, Qinglai Guo
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Low Voltage Ride Through einer synchrongeneratorbasierten Windkraftanlage
2022Due to the increased power penetration level of wind energy, wind turbines are now system-relevant components of the power supply. To ensure grid stability, especially during a symmetrical or asymmetrical voltage dip, wind turbines must provide low voltage ride through (LVRT) capability with simultaneous dynamic voltage support ability by feeding ...
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Low voltage ride through capability of single-phase induction machines
e & i Elektrotechnik und Informationstechnik, 2018Stochastically 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
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Low Voltage Ride Through of Wind Energy Systems
2017This 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
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Low voltage ride through and fault ride through capability of 40kw PV model grid connected
2016 Saudi Arabia Smart Grid (SASG), 2016Nowadays, 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
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Improvement of Low-Voltage Ride-Through Capability for Wave Energy Conversion System
IEEE Transactions on Industrial Electronics, 2022With the wave energy conversion system (WECS) integrated to grid, the lack of satisfactory ability to ride through transient voltage faults will reduce the stability and reliability of the grid. In this paper, in order to enhance the low-voltage-ride-through (LVRT) capability of the WECS, the structure and the mathematical model of a magnetic-gear ...
Hongwei Fang, Xuanjie Zhang
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