Results 11 to 20 of about 167,660 (319)
Energies, 2019 In a wind turbine system, a doubly-fed induction generator (DFIG), with nonlinear and high-dimensional dynamics, is generally subjected to unbalanced grid voltage and unknown uncertainty.
Yaozhen Han, Ronglin Ma
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Energies, 2019 This paper proposes a novel finite control set model predictive control (FCS-MPC) strategy with merely grid-injected current sensors for an inductance-capacitance-inductance (LCL)-filtered grid-tied inverter, which can obtain a sinusoidal grid-injected ...
Xiaotao Chen +5 more
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Improved Voltage Support Method for Unbalanced Grid Condition [PDF]
Dianli jianshe[Objective] With the integration of large-scale distributed photovoltaics，issues such as reverse power flow and overvoltage arise，posing challenges to the safe and stable operation of power systems.
CAO Xiaoqing, LI Te, LI Lin, CHEN Di, ZHOU Zhengxu, SHI Xiaojie
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Energies, 2017 According to the theory of passivity-based control (PBC), this paper establishes a port-controlled Hamiltonian system with dissipation (PCHD) model for a doubly fed induction generator (DFIG) system under unbalanced grid voltage conditions and proposes a
Jiawei Huang, Honghua Wang, Chong Wang
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Improved Power Control of DFIGs Driven by Wind Turbine under Unbalanced Grid Voltage
Journal of Electrical Engineering and Technology, 2023 Undesired oscillation components appear in active and reactive powers, electromagnetic torque and DC-link voltage of doubly fed induction generators (DFIGs) connected to unbalanced grid voltage.
E. Shehata
semanticscholar +1 more source
Improved control of virtual synchronous generator under unbalance of grid voltage
Energy Reports, 2023 Asymmetric faults in the power grid will lead to unbalanced grid voltage. When the traditional VSG control operates under unbalanced grid voltage, the output current will be unbalanced, resulting in output power oscillation.
Chunxue Wen +3 more
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Protection and Control of Modern Power Systems, 2021 A new inter-cluster DC capacitor voltage balancing scheme for a delta connected modular multilevel cascaded converter (MMCC)-based static synchronous compensator (STATCOM) is presented. A detailed power flow analysis of applying negative sequence current
O. Oghorada +4 more
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IET Power Electronics, 2021 Grid‐connected converters in distributed generation systems are required to operate under highly distorted voltage with a wide frequency range, and to provide active/reactive power information for ancillary services and power control. This paper presents
Sakda Somkun
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Research on Wind Turbine Converter Control Based on Resonant Sliding Film Controller [PDF]
E3S Web of Conferences, 2021 A resonant sliding mode control strategy based on the resonant sliding film surface is proposed to control the turbine-side converter of the wind turbine so that the wind turbine can be connected to the grid smoothly under the condition of unbalanced ...
Wen-kuan XU, You-peng ZHANG
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Energies, 2021 An optimal power flow algorithm for unbalanced three-phase distribution grids is presented in this paper as a new tool for grid planning on low voltage level. As additional equipment like electric vehicles, heat pumps or solar power systems can sometimes
Lukas Held +5 more
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