France-Spain HVDC transmission system with hybrid modular multilevel converter and alternate-arm converter

Abdel-Moamen, M.A.; Shaaban, S. A.

doi:10.1109/ipact.2017.8245001

Cited by 15 publications

(8 citation statements)

References 11 publications

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“…Once a fault occurs, the converters will be blocked and there is no need to implement a large current limiting inductor for fault current limiting. Taking the INELFE MMC-HVDC project as an example, the current limiting inductor of the system is only 50mH [89].…”

Section: Protection Schemes Independent Of Boundary Elementsmentioning

confidence: 99%

DC Fault Protection Algorithms of MMC-HVDC Grids: Fault Analysis, Methodologies, Experimental Validations, and Future Trends

Xiang

Yang

Adam

et al. 2021

IEEE Trans. Power Electron.

118

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To protect the converters and minimize the power transmission interruption during DC line faults, it is necessary to detect the faults at ultra-high-speed for the MMC based HVDC grids. This paper reviews the state-of-the-art of DC fault protection methods of MMC HVDC grids, and summarizes the underlying principles of each method. On this basis, the DC fault characteristics analysis in terms of modal-domain, time-domain and frequency-domain are analyzed, which direct the protection design. Typical boundary protection and non-boundary protection schemes are reviewed. The advantages and disadvantages of existing fault protection methods are compared. A two-terminal MMC-HVDC prototype is developed to test the effectiveness of three fault protection methods. Comprehensive quantitative assessments of the protection methods discussed above are carried out in a four-terminal MMC HVDC grid. Finally, the future trends of the protection schemes are discussed and the findings are concluded.

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Section: Protection Schemes Independent Of Boundary Elementsmentioning

confidence: 99%

DC Fault Protection Algorithms of MMC-HVDC Grids: Fault Analysis, Methodologies, Experimental Validations, and Future Trends

Xiang

Yang

Adam

et al. 2021

IEEE Trans. Power Electron.

118

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show abstract

“…There are many statistical and conventional techniques like Taguchi technique, response surface method (RSM) [24], artificial neural network (ANN) [12,25] and affine projection algorithm (APA) [14] where are applied for fine-tuning the PI controller employed in the regulatory system for different power system components. But, these techniques depend on the initial values, so meta-heuristic algorithms such as PSO [26] Figure 8 illustrates the steps needed to find the best solution and the three proposed techniques…”

Section: Frt Capability Realization For Pmsg With Bcmentioning

confidence: 99%

“…GWO is a meta-heuristic algorithm introduced by Mirjalili et al [26,29], which represents the local manner of gray wolves. A group of them contains 5-12 wolves roughly.…”

Section: Gwo Applied On Mscmentioning

confidence: 99%

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Enhancing the dynamic performance of a wind-driven PMSG implementing different optimization techniques

2020

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Quick transient and smooth stable-state output of permanent magnet synchronous generator (PMSGs) is crucial for sustained power generation and grid code fulfillment specifically the fault ride-through (FRT) capability. Optimization techniques such as gray wolf optimizer (GWO), particle swarm optimizer (PSO) and whale optimizer algorithm (WOA) are proposed to realize a fast transient response and smooth operation of the PMSG. The proposed algorithms for machineside converter are used to get the optimum power generated. Braking chopper (BC) was chosen as a solution for achieving the FRT for PMSG. The studied cases are the three-step wind speed change and symmetrical fault contingencies. In the first case, PSO gives better performance compared with conventional proportional integral, while in the second case, GWO and WOA give a better performance than PSO. GWO delivers the best output in the case of symmetrical fault compared to the WOA. MATLAB/Simulink environment is used to demonstrate the effectiveness of the proposed GWO technique including BC for improving the PMSG dynamic performance.

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“…1) In existing cable-based MMC-HVDC projects, the sizes of CLRs implemented at the terminal of cables are small, due to the little likelihood of DC fault occurrence. For example, 50mH CLRs are implemented in the ±320 kV INELFE MMC-HVDC project which interconnects national electrical grids between France and Spain [16]; 20mH and 10mH CLRs are adopted in the ±200kV Zhoushan five-terminal MMC-HVDC project and the ±160kV Nan'ao three-terminal MMC-HVDC project, respectively. 2) Fault tolerable converter based HVDC systems.…”

Section: Introductionmentioning

confidence: 99%

An Improved DC Fault Protection Scheme Independent of Boundary Components for MMC Based HVDC Grids

Yang

Xiang

Wen

2021

IEEE Trans. Power Delivery

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For modular multilevel converter (MMC) based DC grids, current-limiting reactors (CLRs) are mainly employed to suppress the fault current and provide boundary effects to detect internal faults. Thus, most existing protection schemes are highly dependent on the larger CLRs to guarantee high selectivity. However, in existing MMC based HVDC projects, the size of CLRs is restrained by the cost, weight, and system stability under normal state. Thus, boundary protections may fail to detect high-resistance faults and pole-to-ground faults under weak boundary conditions. To overcome these shortcomings, this paper proposes a fast and selective DC fault detection scheme independent of boundary components. The propagation characteristics of line-mode backward traveling-waves (TW) are analyzed to identify external and internal faults. The polarities of zero-mode backward TWs are employed to select faulted poles. The directional overcurrent based pilot protection is adopted as a complementary criterion to detect remote faults. The proposed method can be applied in MMC-HVDC systems with small CLRs that cannot provide strong boundary conditions. Besides, the detection speed is fast (less than 1.5ms). Moreover, it is robust to fault resistance and immune to noise. Various simulation results in PSCAD/EMTDC verifies the effectiveness of the proposed scheme.

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France-Spain HVDC transmission system with hybrid modular multilevel converter and alternate-arm converter

Cited by 15 publications

References 11 publications

DC Fault Protection Algorithms of MMC-HVDC Grids: Fault Analysis, Methodologies, Experimental Validations, and Future Trends

DC Fault Protection Algorithms of MMC-HVDC Grids: Fault Analysis, Methodologies, Experimental Validations, and Future Trends

Enhancing the dynamic performance of a wind-driven PMSG implementing different optimization techniques

An Improved DC Fault Protection Scheme Independent of Boundary Components for MMC Based HVDC Grids

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