A novel fault monitoring mechanism on overhead transmission line in power grid

Korde, Neha; Bhagat, Narendra

doi:10.1109/i2c2.2017.8321832

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…Define the V c_avg as the average capacitance voltage of the cascaded FBSMs, as shown below: (11) where N cf is the number of the cascaded FBSMs. Thus, combining (7), (10) and 11, we can obtain…”

Section: Control Strategy Of Fb-dbsmentioning

confidence: 99%

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Energy dissipation of MMC‐HVDC based onshore wind power integration system with FB‐DBS and DCCB

Cao

Xiang

Lin

et al. 2019

IET Renewable Power Generation

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With the development of HVDC, MMC is seeking its application in onshore wind power integration. AC and DC faults are important issues for the wind power integration system, during which the wind generation system continuously provides wind power and the surplus power may cause overvoltage to sub-modules of MMC. This paper focuses on the energy dissipation during AC and DC faults for the overhead-line MMC-HVDC system integrating large scale wind power. A twoterminal MMC-HVDC system with permanent magnet synchronous generator (PMSG) based wind farm is studied. Hybrid DC current breakers (DCCBs) are employed to interrupt DC fault current and the method based on measuring the rate of change of DC line voltage is adopted to trip DCCBs. Also a full-bridge sub-module based dynamic braking system is implemented at the DC link to absorb the surplus wind power in case of AC or DC faults in the HVDC grid. To ride-through AC and DC faults without blocking IGBTs, the control of hybrid DCCB and the system fault ride-through (FRT) strategies are properly designed. PSCAD/EMTDC simulations are shown to demonstrate theoretical analysis.

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Section: Control Strategy Of Fb-dbsmentioning

confidence: 99%

“…For the MMC‐HVDC based onshore wind power integration system, once an AC fault happens at the grid side, the active power generated by the wind plants cannot be transmitted to the receiving grids, leading to the increase of DC link voltage [10]. The overvoltage will cause the breakdown of power electronic devices inside the converters.…”

Section: Introductionmentioning

confidence: 99%

Energy dissipation of MMC‐HVDC based onshore wind power integration system with FB‐DBS and DCCB

Cao

Xiang

Lin

et al. 2019

IET Renewable Power Generation

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“…However, it is undeniable that faults are prone to spreading in the DC grid due to its reticulate structure [11,12]. When an AC three-phase short circuit fault occurs on the valve side of the receiving MMC station, the transient excess power generated by the maximum power tracking control operation of the wind farms cannot transmit into the AC grid [13]. The surplus wind power causes an overvoltage in the DC line, and the converter station submodule capacitance voltages also rise consistently [14,15].…”

Section: Introductionmentioning

confidence: 99%

A Smart Fault-Tackling Strategy Based on PFTE for AC Three-Phase-to-Ground Faults in the Multi-Terminal HVDC Wind Power Integration System: Further Foundings

Zhang

Cao

2022

Energies

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This paper describes a smart fault tackling strategy based on power flow transfer entropy (PFTE) for AC three-phase-to-ground (TPG) faults in the multi-terminal HVDC (MTDC) wind power integration system. The fault characteristics and transient energy transfer of different positions and properties are analyzed. Then, a double integral discrimination method based on PFTE is proposed to further distinguish the fault property. Considering the power flow balance, an adaptive coordination strategy of wind farms and energy dissipation resistors is proposed to deal with different AC faults. Finally, a smart fault-tackling strategy based on PFTE for AC three-phase-to-ground (TPG) faults in the MTDC wind power integration system is proposed. Under the proposed smart fault-tackling strategy, the MTDC wind power integration system achieves uninterrupted operation during any AC TPG fault at the receiving end. The experiment results confirm the applicability of the proposed fault-tackling strategy.

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Research on Fault Monitoring of Transmission Loop Network in Main Controlling System for Radio and Television Station Based on Asymmetric Polling Scheme

Xuliu¹,

Lin

Ding

2021

Advances in Intelligent Automation and Soft Computing

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A novel fault monitoring mechanism on overhead transmission line in power grid

Cited by 4 publications

References 4 publications

Energy dissipation of MMC‐HVDC based onshore wind power integration system with FB‐DBS and DCCB

Energy dissipation of MMC‐HVDC based onshore wind power integration system with FB‐DBS and DCCB

A Smart Fault-Tackling Strategy Based on PFTE for AC Three-Phase-to-Ground Faults in the Multi-Terminal HVDC Wind Power Integration System: Further Foundings

Research on Fault Monitoring of Transmission Loop Network in Main Controlling System for Radio and Television Station Based on Asymmetric Polling Scheme

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