SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Bhattacharya D.) ;lar1:(cth)"

Sökning: WFRF:(Bhattacharya D.) > Chalmers tekniska högskola

  • Resultat 1-3 av 3
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  •  
2.
  • Mobarrez, M., et al. (författare)
  • A Novel Control Method for Preventing the PV and Load Fluctuations in a DC Microgrid from Transferring to the AC Power Grid
  • 2017
  • Ingår i: IEEE Second International Conference on Direct Current Microgrids, June 27-29, 2017, Nurenberg, Germany. - 9781479998791 ; , s. 352-359
  • Konferensbidrag (refereegranskat)abstract
    • DC microgrids are gaining popularity due to the higher efficiency, reliability, lower costs and better compatibility with DC loads compared to their AC counterparts. Large-scale deployment of distributed renewable energy resources like solar in the microgrids, has to provide utilities and grid operators the capability to safely and reliably mitigate the impact of solar and loads intermittency on the main AC power grid. In this paper, a novel control method is proposed to prevent solar and load variations inside a DC microgrid from transferring to the AC power grid while the microgrid is operating in grid-tied mode. The control method works based on having multiple slack terminals with different voltage controller response times in parallel. The response times can be adjusted such that the battery converters of the microgrid absorb solar and load fluctuations while the grid-tied inverters contribute to their voltage regulation's shares smoothly according to their droop parameters. This method improves upon previously discussed methods in literature in that it does not require single slack terminal, DC bus signaling or converter mode changes.
  •  
3.
  • Mobarrez, M., et al. (författare)
  • Grounding Architectures for Enabling Ground Fault Ride-Through Capability in DC Microgrids
  • 2017
  • Ingår i: IEEE Second International Conference on Direct Current Microgrid, June 27-29, 2017, Nurenberg, Germany. - 9781479998791 ; , s. 81-87
  • Konferensbidrag (refereegranskat)abstract
    • Distributed generation in the power grid will result in considerable efficiency improvement and increase in reliability and stability of the grid. And DC microgrids have clear benefits such as higher reliability, higher efficiency, better compatibility with DC loads, expandability and etc., over their AC equivalent systems. Although DC microgrids have clear advantages over the AC microgrids, but there is not sufficient information available on their grounding. Realizing the grounding of DC systems would accelerate employing of these systems in the power grid. Grounding is a complex topic involving many design considerations and trade-offs and it is needed to ensure the safety of personnel and equipment as well as detection of ground fault in the system. Grounding of DC power system should be designed to 1) minimize the leakage current during normal operation, 2) maximize the safety of personnel and equipment under fault conditions. This work examines the different grounding methods and system architectures and discusses the design trade-offs in terms of safety, reliability, detection, mitigation, noise, and cost. We examine impedance grounding, isolation, and bi-polar architectures and discuss their benefits with respect to these criteria.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-3 av 3

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy