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Impedance-Based Stability Analysis of Grid-Connected Inverters under the Unbalanced Grid Condition
Applied Sciences, 2023 As a common interface circuit for renewable energy integrated into the power grid, the inverter is prone to work under a three-phase unbalanced weak grid.
Jinzhu Shi, Lihui Yang, Hao Yang
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IEEE Access, 2021 This paper proposes an improved three-stages cascading passivity-based control (PBC) for a grid -connected LCL converter in unbalanced weak grid condition.
Jianguo Li +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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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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Ain Shams Engineering Journal, 2021 This paper presents improved energy management for grid-inverter of a hybrid photovoltaic (PV)/fuel cell (FC) energy system with unbalanced sensitive loads.
Mustafa İnci, Mehmet Selim Aygen
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Stability and power quality control of parallel inverters in weak current network [PDF]
电力工程技术, 2022 In the new energy power generation system,the inverter is connected to the grid in parallel,which expands the grid capacity. In addition,due to the existence of grid impedance,the stability of the inverter is reduced and the difficulty of power quality ...
ZHANG Cheng +5 more
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A compound control strategy of three‐phase Vienna rectifier under unbalanced grid voltage
IET Power Electronics, 2021 When traditional finite‐set predictive power control is applied to Vienna rectifier, the input current will produce a large number of third harmonics under unbalanced power network, which will seriously affect the normal operation of Vienna rectifier ...
Xingtian Feng +4 more
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Deadbeat predictive power control for Vienna rectifier under unbalanced power grid condition
Energy Reports, 2021 Due to the low output distortion and switch voltage stress, Vienna rectifiers have been widely utilized in high-power applications such as communication power supplies, wind power systems and electric vehicle charging piles.
Yiyan Lu +4 more
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Control of Grid-Following Inverters Under Unbalanced Grid Conditions
IEEE Transactions on Energy Conversion, 2020 This paper proposes a new control scheme to eliminate the 3rd harmonic in the output currents of grid-following inverters under unbalanced grid conditions. Unbalanced grids adversely affect the performance of grid-following inverters due to the oscillations appearing on the DC-link voltage with a frequency twice the line frequency.
Seyed Fariborz Zarei +5 more
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Sliding-Mode-based Improved Direct Active and Reactive Power Control of Doubly Fed Induction Generator under Unbalanced Grid Voltage Condition [PDF]
Journal of Renewable Energy and Environment, 2016 This paper proposes an improved direct active and reactive power control (DPC) strategy for a grid-connected doubly fed induction generator (DFIG) based wind-turbine system under unbalanced grid voltage condition.
Gholam Reza Arab Markadeh +1 more
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