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9096 results in Communications, Signal Processing and Information Theory

Page 76 of 455

  • 8 - Networked DC Microgrids

  • from Part II - Networked Microgrids
  • Peng Zhang
  • Book:
    Networked Microgrids
    Published online:
    15 April 2021
    Print publication:
    06 May 2021, pp 180-198

  • Summary

    This chapter focuses on the small signal stability assessment of DC microgrids. Dynamical models of bipolar DC microgrids are introduced. A Multi-Input Multi-Output (MIMO) method is developed to investigate the mutual interactions and small signal stability of bipolar DC microgrids. Singular value decomposition (SVD) is introduced to discover the frequencies of unstable poles.

  • 5 - Formal Analysis of Networked Microgrids Dynamics

  • from Part II - Networked Microgrids
  • Peng Zhang
  • Book:
    Networked Microgrids
    Published online:
    15 April 2021
    Print publication:
    06 May 2021, pp 91-133

  • Summary

    This chapter elaborates some initial efforts in establishing a tractable method, namely Formal Analysis (FA), for assessing the stability of networked microgrids under uncertainties from heterogeneous sources including DERs. Both centralized and distributed formal methods are established for computing the bounds of all possible trajectories and estimating the stability margin for the entire networked microgrid system.

  • 10 - Future Perspectives: Programmable Microgrids

  • from Part III - Prospect
  • Peng Zhang
  • Book:
    Networked Microgrids
    Published online:
    15 April 2021
    Print publication:
    06 May 2021, pp 215-221

  • Summary

    The chapter introduces smart programmable microgrids (SPMs). The vision is to virtualize microgrid functions, making them software-defined and hardware-independent, so that converting DERs to community microgrids becomes affordable, autonomic, and secure. The development of SPM is expected to lead to groundbreaking, replicable technologies that could transform today's community power infrastructures into tomorrow's flexible services toward self-configuration, self-healing, self-optimizing, and self-protection.

  • 6 - Active Fault Management for Networked Microgrids

  • from Part II - Networked Microgrids
  • Peng Zhang
  • Book:
    Networked Microgrids
    Published online:
    15 April 2021
    Print publication:
    06 May 2021, pp 134-157

  • Summary

    This chapter introduces a powerful online distributed and asynchronous active fault management (DA-AFM) tool which proactively manages the fault currents by controlling the power electronic interfaces and eliminates the barriers against networked microgrids resilience and the ultrareliable operations of DERs/microgrids. Upon fault occurrence, DA-AFM is able to maintain the total fault current unchanged to avoid detrimental impact on the power grid, to eliminate the damaging power ripples for inverters in DERs/microgrids, and to ensure that the power flow of each individual microgrid is identical before and after fault to avoid loss of loads and maintain networked microgrid stability.

Page 76 of 455