Results 281 to 290 of about 167,660 (319)
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Electric power systems research, 2018
Direct power control (DPC) strategy has attracted wide attention due to its advantages of simple structure, quick response, strong robustness, and elimination of current regulation loops/PWM blocks.
B. Kahia +5 more
semanticscholar +1 more source
Direct power control (DPC) strategy has attracted wide attention due to its advantages of simple structure, quick response, strong robustness, and elimination of current regulation loops/PWM blocks.
B. Kahia +5 more
semanticscholar +1 more source
Modeling and control of a grid-connected BDFM under unbalanced grid voltage conditions
2011 IEEE International Electric Machines & Drives Conference (IEMDC), 2011info:eu-repo/semantics ...
Sotoodeh, Pedram +3 more
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An improved voltage support strategy of grid-connected inverter under unbalanced grid condition
2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), 2017In order to ensure three-phase grid-connected inverter output voltage symmetry under unbalanced grid voltage, an improved control strategy is proposed in this paper. The proposed control strategy includes power, voltage and current three loops. The complex coefficient-filter (CCF) is used to obtain the positive and negative sequence of unbalance output
Wang Wei, Li Pengfei, Li Fen, Liu Guihua
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A control method of PV grid-connected inverter under grid voltage unbalanced drops
2018 Chinese Control And Decision Conference (CCDC), 2018To satisfy the requirements of low voltage ride-through (LVRT) capability of PV grid-connected inverter under certain circumstances that three-phase grid voltage shows asymmetrical drops, an unbalance control strategy of the grid-connected inverter is designed in this paper.
Liqun Shang, Weiwei Zhu, Zhuojun Li
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The control for grid connected inverter of distributed generation under unbalanced grid voltage
2009 International Conference on Sustainable Power Generation and Supply, 2009This paper describes a new control scheme of grid connected inverter of DG (distributed generation) under unbalanced grid voltage. In this paper, the proposed scheme of synchronous reference frame (SRF) controller can reduce the influence of unbalanced grid voltage, which is mainly caused by unbalanced distribution of single-phase and non-linear loads,
null Zhang Guowei +3 more
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IEEE Transactions on Energy Conversion, 2011
An improved grid synchronization control scheme of the wind energy conversion system based on the doubly fed induction generator (DFIG) under unbalanced grid voltage is proposed in this paper. In both the positive and negative sequence models, respectively, the degrees of relevancy among rotor voltages, rotor currents, and stator voltages are ...
Si Zhe Chen +4 more
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An improved grid synchronization control scheme of the wind energy conversion system based on the doubly fed induction generator (DFIG) under unbalanced grid voltage is proposed in this paper. In both the positive and negative sequence models, respectively, the degrees of relevancy among rotor voltages, rotor currents, and stator voltages are ...
Si Zhe Chen +4 more
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Optimal VF-PDPC of grid connected inverter under unbalanced and distorted grid voltages
Electric Power Systems Research, 2016In this article, an optimal virtual flux predictive direct power control (VF-PDPC) is proposed for three-phase grid connected voltage source inverter (VSI) operating under unbalanced and distorted grid supply voltage. The concept of virtual flux and extension pq theory is introduced in the conventional PDPC, where the former enhances its resilience ...
Lee, Sze Sing, Heng, Yeh En
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Flexible Control Schemes for Grid-Tied Inverters Under Unbalanced Grid Voltage Conditions
2019This paper investigates flexible control schemes for a three-phase grid-connected inverter, especially under unbalanced grid voltage conditions. PWM controlled three-phase voltage source inverters (VSIs) are widely used in renewable energy-based power generation systems for performing various advanced energy management and power flow control functions,
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Sliding Mode Control Strategy of Grid-Connected Inverter under Unbalanced Grid Voltage
2022 IEEE 5th International Electrical and Energy Conference (CIEEC), 2022Yuanyuan Wu +5 more
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Control Scheme of Modular Multilevel Converter Under Unbalanced Grid Voltage
2019In a modular multilevel converter (MMC) system, the grid asymmetry on AC side will cause problems like non-sinusoidal 3-phase current on AC side of MMC converter, fluctuation of active and reactive power, and large fluctuation of double frequency current and voltage on DC side.
Tonghua Wu +5 more
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