Results 31 to 40 of about 306,024 (298)
, 2020 With the rapid development of new energy power, the HVDC sending-end system in the northwest of China gradually shows the characteristics of high penetration of new energy, weak AC grid and small rotational inertia, and the voltage stability problems of ...
Xiaojun TANG +3 more
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On Stability of Voltage Source Inverters in Weak Grids
IEEE Access, 2018 As the number of inverters increases in the power grid, the stability of grid-tied inverters becomes an important concern for the power industry. In particular, a weak grid can lead to voltage fluctuations at the inverter terminals and consequently cause inverter instability.
Aswad Adib +3 more
openaire +3 more sources
Frequency regulation optimization strategy of improved virtual synchronous generator under ultra-weak grid conditions [PDF]
AIP AdvancesTo enhance the frequency support capability of grid-forming energy storage systems governed by Virtual Synchronous Generators (VSGs) under ultra-weak grid conditions, an improved VSG frequency support strategy is proposed based on model predictive ...
Xucun Guo +5 more
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IEEE Access, 2020 Small-signal stability problems often occur when the inverter for renewable energy generation is connected to weak grid. A small-signal transfer function integrated model reflecting the interaction of grid impedance, phase locked-loop (PLL), and current ...
Zhiwei Xie +6 more
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Robust Delay Compensation Strategy for LCL-Type Grid-Connected Inverter in Weak Grid
IEEE Access, 2022 Capacitor-current-feedback active damping has been widely adopted in digitally controlled LCL-type grid-connected inverters (GCIs). However, their digital control delay causes the system stability to deteriorate within a negative damping range ...
Xin Ding +4 more
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Comprehensive modeling of grid-connected inverters in weak grid systems
Electrical engineering & ElectromechanicsIntroduction. The stability of grid-connected inverters is critical for the integration of renewable energy into modern power systems. However, this stability is significantly challenged under weak grid conditions, characterized by high impedance and low
Y. Daili +3 more
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Improved Fractional-order Damping Method for Voltage-controlled DFIG System Under Weak Grid
Journal of Modern Power Systems and Clean Energy, 2022 When a doubly-fed induction generator (DFIG) is connected to a weak grid, the coupling between the grid and the DFIG itself will increase, which will cause stability problems. It is difficult to maintain the tracking accuracy and ro-bustness of the phase-
Zhen Xie +3 more
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Weak-Grid Tolerant Control Methods for Voltage-Source Converters
, 2021 Defence is held on 22.6.2021 12:15 – 15:15 https://aalto.zoom.us/j/61283640166This thesis deals with weak-grid tolerant control methods for voltage-source converters. The converters suffer from stability problems when connected to weak grids.
Rahman, F. M. Mahafugur
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New power decoupling strategy for grid-connected inverter under weak power grid
E3S Web of Conferences, 2018 This study analyzes the power coupling in a weak power grid, and designs a novel decoupling method for the coupling power with multi harmonic frequency on the dc bus.
Wai Rong-Jong, Wang Yu
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Harmonic Stability Analysis of Grid-Connected Converters with Power Synchronization Control
, 2021 Integration of converter-based resources into weak grids brings new concerns regarding the harmonic stability of modern power systems. This paper studies the harmonic stability and impedance characteristics of power synchronization control (PSC) which ...
Sepehr, Amir +5 more
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