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An Improved Grid Voltage Feedforward Compensation Scheme of Grid-Connected Inverter in Weak Grid
2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC), 2018The grid voltage feedforward control strategy is widely used in the grid-connected inverter, aiming to reduce the disturbance of grid voltage distortion and suppress the impulse current of inverter at startup. However, an extra positive feedback channel will be introduced into the current control loop in weak grid, bringing low harmonics and even ...
Ming Li +4 more
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Harmonic compensation method of grid-tied converters in a weak grid
2017 Chinese Automation Congress (CAC), 2017In this paper, a control strategy is proposed to compensate the voltage of point of common coupling (PCC) voltage and grid current harmonic by using line end grid connected inverter. The control strategy uses the current and voltage information at the outlet of the inverter and indirectly calculates the voltage at the PCC in conjunction with the ...
Deng Hua +5 more
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The Grid Impedance Adaptation Dual Mode Control Strategy In Weak Grid
2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia), 2018With the increasing penetration of distributed energy resources and the wide distribution of access point, the power grid is becoming more and more weak. For the two main stability control strategies in weak grid, namely the current source grid connected mode (CSM) and the voltage source grid connected mode (VSM), the static characteristics of the ...
Ming Li +3 more
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Stability Control for Wind in Weak Grids
IEEE Transactions on Sustainable Energy, 20194 Hz oscillations and 30 Hz oscillations have been observed in real-world wind farms with weak grid interconnections. Such stability issues limit wind power delivery. This paper proposes mechanism-based feedback control strategies suitable for vector control based voltage source converters employed in Type-3 and Type-4 wind to enhance the overall ...
Yin Li, Lingling Fan, Zhixin Miao
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Connection of inverters to a weak grid
2000 IEEE 31st Annual Power Electronics Specialists Conference. Conference Proceedings (Cat. No.00CH37018), 2002Connection of an inverter to export power to the mains for a stiff supply is well understood. This paper examines the dynamics of power export to a weak grid. In this case the local bus angle changes for changes in export power which interferes with the process of synthesizing the inverter voltage.
G. Ledwich, H. Sharma
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Synchronous condenser applications for a weak grid
2023This panel session discusses the application of synchronous condensers to improve power system performance, particularly systems with a high proportion of inverter based sources. Presentations in this panel session: - Introduction to panel: Update on SynCon Interest Group Activity (23PESGM4014) - SynCon parameter study: Different transient and sub ...
K. Chen +4 more
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Wind turbines voltage support in weak grids
2013 IEEE Power & Energy Society General Meeting, 2013This paper investigates how Full-Scale Converter (FSC) wind turbines can contribute to voltage support in weak grids. A novel voltage support strategy is proposed, which optimizes the voltage support during the fault. This strategy is compared to the voltage support required by two grid codes, the Danish and the German E.ON ones.
F. Sulla, J. Svensson, O. Samuelsson
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Grid Voltage Adaptive Feed-forward Control Strategy in Weak Grid
2023 11th International Conference on Smart Grid and Clean Energy Technologies (ICSGCE), 2023Jian Wu, Xinliang Jia, Dianguo Xu
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Hardware Demonstration of Weak Grid Oscillations in Grid-Following Converters
2021 North American Power Symposium (NAPS), 2021Li Bao +3 more
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COMPARATIVE STABILITY ASSESSMENT OF GRID-FOLLOWING AND GRID-FORMING VSCS IN WEAK GRIDS
IET Conference Proceedings, 2021L. Yuan +5 more
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