Results 11 to 20 of about 22,752,118 (291)
Application of UPFC to improve the low-voltage-ride-through capability of DFIG [PDF]
2015 IEEE 24th International Symposium on Industrial Electronics (ISIE), 2015 In this paper, a new controller approach for unified power flow controller (UPFC) is proposed to improve the low-voltage-ride-through (LVRT) capability of a DFIG-based WECS during voltage sag. The shunt and series converters of the UPFC are controlled using a hysteresis current controller (HCC) and proportional integral controllers (PI), respectively ...
Yasser M. Alharbi, Ahmed Abu-Siada
openaire +3 more sources
Control Strategy of Low-voltage Ride-through for Micro-grid under Asymmetric Grid Voltage
Kongzhi Yu Xinxi Jishu, 2016 It researched the control strategy of micro-grid low voltage ride-through under asymmetric grid voltage, established a mathematical model of micro- grid stability controller under asymmetric grid voltage for low voltage ride- through of micro-grid under ...
XU Liang, HAN Minxiao
doaj +2 more sources
Low-Voltage Ride-Through Capability of a Single-Stage Single-Phase Photovoltaic System Connected to the Low-Voltage Grid [PDF]
International Journal of Photoenergy, 2013 The progressive growing of single-phase photovoltaic (PV) systems makes the Distribution System Operators (DSOs) update or revise the existing grid codes in order to guarantee the availability, quality, and reliability of the electrical system.
Yongheng Yang, Frede Blaabjerg
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Low-voltage ride-through control strategy for permanent magnet synchronous generator under weak grid
Diance yu yibiaoIn order to improve the low-voltage ride-through（LVRT）capability of permanent magnet synchronous generator（PMSG）under weak grid, this paper proposes a low-voltage ride-through control strategy for power support and auxiliary protection of unloading ...
CHEN Zhong, DING Linzhi, GU Chunsong
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Integrated operation control technology of MMC high and low voltage ride-through under weak grid
电力工程技术In order to solve the problem of high and low voltage fault ride-through of modular multilevel converter （MMC） under weak grid，a multi-link control strategy including capacitance voltage balancing control of integral，phase-to-phase and upper and lower ...
Wenzhong MA +5 more
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Distributed control of a fault tolerant modular multilevel inverter for direct-drive wind turbine grid interfacing [PDF]
, 2013 Modular generator and converter topologies are being pursued for large offshore wind turbines to achieve fault tolerance and high reliability. A centralized controller presents a single critical point of failure which has prevented a truly modular and ...
Parker, Max, Ran, Li, Finney, Stephen
core +4 more sources
Zhongguo dianli, 2022 In terms of the problem that the grid-connected photovoltaic DC system is unstable during low voltage ride through (LVRT), an improved double-side voltage control strategy is proposed.
Fei XUE +3 more
doaj +1 more source
Low voltage ride-through strategies for a 3-phase grid-connected PV system [PDF]
, 2021 Grid codes is a technical specification which defines the parameters a power system that are connected to the national power systems has to ensure safe, secure and eco-nomic proper functioning of the electric system.
HAO WEN
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Design of a Microgrid with Low-Voltage Ride-Through Capability and Simulation Experiment [PDF]
Journal of Applied Mathematics, 2014 A microgrid with low-voltage ride-through capability is designed. The designed microgrid avoids operating in unplanned islanded mode during an asymmetric ground fault which occurs in the low voltage distribution network and supports fault recovery for distribution network.
Fan, Wenchao +5 more
openaire +4 more sources
IEEE Access, 2019 The probabilistic short-circuit current (PSCC) of photovoltaic generation is determined by the voltage sag at the grid connection and the low voltage ride-through of the unit during the grid fault, while the voltage sag and the low voltage ride-through ...
Weiyan Qian +5 more
doaj +1 more source