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Energy Reports, 2022 A high proportion of new energy sources are connected to the grid, which not only alleviates the energy shortage, but also brings hidden dangers to the safe and stable operation of the grid. Aiming at the inadequate consideration of uncertainty caused by
Yuhong Zhu +5 more
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Safety Voltage Control Strategy for High Voltage Ride-Through of Doubly Fed Induction Generator (DFIG) [PDF]
Advances in Engineering Research, 2015 a DFIG high voltage ride-through method with the consideration for the safe operation voltage of the generator unit is proposed in the article. Based on the dynamic reactive support capability of DFIG, during grid voltage swell, the reactive powers outputted by the grid-side converter and the generator stator are concertedly controlled so as to keep ...
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Analysis of Transient Voltage-Frequency Dynamic Coupling Mechanism of High-Proportion Renewable Energy Sending End System Under Commutation Failure Faults [PDF]
Dianli jianshe[Objective] Aiming at the new challenge of unclear transient voltage and system frequency operation risks faced by sending-end power systems with a high proportion of renewable energy after commutation failureļ¼ this paper reveals the dynamic coupling ...
GAO Shang, YIN Chunya, LIU Wan, LI Xiaozhu, HAN Lu, ZHANG Gaohang
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Energies, 2022 With the increase of photovoltaic penetration rate, the fluctuation of photovoltaic power generation affects the reliability of ship power grids. Marine PV grid-connected systems with high penetration rates should generally have a low voltage ride ...
Shihao Wang +3 more
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Fault-ride Through Control Strategy of Multi-terminal High Voltage DC Systems
IFAC-PapersOnLine, 2018 Abstract A coordinate control strategy is proposed to secure fault-ride through (FRT) for voltage source converter (VSC) based multi-terminal high voltage dc transmissions (MTDC) integrating the offshore wind farms (OWFs). The short circuit fault in the ac grid obviously reduces the voltage at the connection point which, in turn, block the power ...
Jing Li +5 more
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IEEE Access, 2019 Aiming at the problem of high voltage disconnection when doubly-fed wind farms are merged into weak power grids, this paper researches the theory of rotor excitation control and proposed an additional control model of DFIG grid-connected rotor flux based
Xinyu Liu, Xianwei Li, Donghong Jiao
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Fault ride-through control strategy of H-bridge cascaded energy storage system [PDF]
E3S Web of Conferences, 2020 The cascaded energy storage system has received extensive attention in areas such as new energy consumption, maintaining stable operation of the power grid, and supporting black start due to its advantages such as high access voltage level, large single ...
Yin Shi +4 more
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IEEE Open Access Journal of Power and EnergyTo enhance the voltage fault ride-through (VFRT) capability of grid-connected photovoltaic (PV) systems under grid voltage faults, this paper proposes an innovative solution using Superconducting Magnetic Energy Storage (SMES).
Hongchong Yang, Maimaitireyimu Abulizi
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A Hybrid HVDC Topology Suitable for Large-Scale Pure Clean Energy Power Base Transmission
Zhongguo dianli, 2023 In order to meet the transmission needs of large-scale pure new energy power bases, after topology comparison, this paper used a hybrid cascaded topology consisting of a line commutated converter (LCC) and a modular multilevel converter (MMC) in the ...
Wenzhe XU, Zheren ZHANG, Zheng XU
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Research on Control Strategy of Voltage Source Full Power Wind Power Converter
Kongzhi Yu Xinxi Jishu, 2023 In the operating environment of power system with weak grid characteristics, the traditional current source converter control mode is prone to vibration, which increases the crossing difficulty and off-grid probability of wind turbines.
ZHOU Wang +5 more
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