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Flexible Operation of Grid-Interactive Converters under Unbalanced Grid Conditions
Advanced Science and Technology Letters, 2015The grid codes of power systems with high penetration of renewable sources impose stringent requirements on the operation of Distributed Renewable Energy Sources (DRES) under the unbalanced grid faults. A generalized power control strategy based on the symmetrical components is used in this paper to control the power delivery under unbalanced grid ...
M. Ali Fotouhi +4 more
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Performance of BDFIG During Balanced and Unbalanced Grid Conditions
2020 IEEE First International Conference on Smart Technologies for Power, Energy and Control (STPEC), 2020In this paper direct torque control (DTC) based brushless doubly fed induction generator (BDFIG) with space vector modulation (SVM) and a PI controller is proposed. Effective operation of DTC of BDFIG by improving steady state operation is proposed by minimizing flux and torque pulsations.
Upadhyayula J.A. Panini Sarma +1 more
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2019 IEEE Industry Applications Society Annual Meeting, 2019
In this paper, Modular Multilevel Converter (MMC) is considered for integrating the giga-watt PV farms with the power grid. In the considered MMC configuration, the PV panels are directly connected across the sub modules of MMC. This MMC-configuration suffers from power imbalance between the arms, phases or both due to non-uniform illumination of the ...
Rahul Mishra 0003 +2 more
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In this paper, Modular Multilevel Converter (MMC) is considered for integrating the giga-watt PV farms with the power grid. In the considered MMC configuration, the PV panels are directly connected across the sub modules of MMC. This MMC-configuration suffers from power imbalance between the arms, phases or both due to non-uniform illumination of the ...
Rahul Mishra 0003 +2 more
openaire +1 more source
Circulating Current Suppression for MMC-HVDC under Unbalanced Grid Conditions
IEEE Transactions on Industry Applications, 2016Modular multilevel converter (MMC) is believed the most competitive solution for high-voltage direct current (HVDC) transmission using voltage source converters. Circulating current suppressing strategies based on proportional resonant (PR) controllers are widely used in MMC. This kind of strategies can effectively eliminate all the circulating current
Jinyu Wang +3 more
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IEEE transactions on power electronics
The modular multilevel matrix converter (M3C) is a power converter used to directly connect two three-phase ac systems, with the advantages of modularity, scalability, and high redundancy. Conventional finite control set model predictive control (FCS-MPC)
Zheng Gong +4 more
semanticscholar +1 more source
The modular multilevel matrix converter (M3C) is a power converter used to directly connect two three-phase ac systems, with the advantages of modularity, scalability, and high redundancy. Conventional finite control set model predictive control (FCS-MPC)
Zheng Gong +4 more
semanticscholar +1 more source
An OCC-APF control strategy for unbalanced grid conditions
2015 IEEE Applied Power Electronics Conference and Exposition (APEC), 2015In this work it is proposed a DSP based, OCC control strategy for APF, which is able to work in case of unbalanced grid voltage, i.e. when it is affected by a common mode voltage. Proposed strategy is based on an OCC rectifier control which utilizes an input resistance control to set up dc-link voltage and achieve a unity power factor as well, and a ...
Alberto S. Lock +3 more
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IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020
To solve the neutral-point (NP) voltage unbalancing problem, a conventional proportional integral (PI) controller is used for NP clamped (NPC) three-level grid-connected inverters under balanced grid conditions. However, when the three-phase grid voltage
J. Lyu +3 more
semanticscholar +1 more source
To solve the neutral-point (NP) voltage unbalancing problem, a conventional proportional integral (PI) controller is used for NP clamped (NPC) three-level grid-connected inverters under balanced grid conditions. However, when the three-phase grid voltage
J. Lyu +3 more
semanticscholar +1 more source
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020
Grid-forming (GF) inverter technology is a novel and evolving concept for systems with high penetration of renewables. The integration of these grid-independent units with the existing conventional generators and gradually replacing them should ...
Sara Yazdani +3 more
semanticscholar +1 more source
Grid-forming (GF) inverter technology is a novel and evolving concept for systems with high penetration of renewables. The integration of these grid-independent units with the existing conventional generators and gradually replacing them should ...
Sara Yazdani +3 more
semanticscholar +1 more source
IEEE Journal of Emerging and Selected Topics in Power Electronics
The positive and negative sequence components of the line current are coupled with each other in unbalanced grid conditions. It raises a problem of sequence components extraction (SCE) for the line current.
Tianqi Liu +5 more
semanticscholar +1 more source
The positive and negative sequence components of the line current are coupled with each other in unbalanced grid conditions. It raises a problem of sequence components extraction (SCE) for the line current.
Tianqi Liu +5 more
semanticscholar +1 more source
IEEE transactions on industrial electronics (1982. Print), 2019
Modular multilevel converters (MMCs) have been widely used in recent years due to their superior advantages in medium/high-voltage applications. The finite control set model predictive control (FCS-MPC) has shown high dynamic responses for the control of
Zheng Gong +3 more
semanticscholar +1 more source
Modular multilevel converters (MMCs) have been widely used in recent years due to their superior advantages in medium/high-voltage applications. The finite control set model predictive control (FCS-MPC) has shown high dynamic responses for the control of
Zheng Gong +3 more
semanticscholar +1 more source