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1887

Applications

Applications

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Power Systems Electromagnetic Transients Simulation — Recommend this title to your library

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The advances in semiconductor technology has led to the development of power electronic based solutions for many applications. Their higher efficiency, increased controllability and smaller footprint has resulted in their rapid deployment. The behaviour of such equipment often can only be adequately modelled using detailed EMT studies. The time constants and switching frequency of such equipment limits the maximum time-step that can be used. The computational burden and complexity means that when many items of equipment (such as WTGs) must be considered they are represented by multiplying the characteristics of one modelled in detail. A few key applications have been presented to illustrate the use of EMT simulation, as well as some typical dynamic responses. Many of the building blocks for the smart grid initiative, such as ac/dc, dc/dc and dc/ac converters have been illustrated. The role of EMT simulation will only increase as the network becomes more complex. The challenge is to model a large-scale power system using EMT simulation. This will mean co-simulation and hybrid (time/frequency-domain) techniques will come to the fore as DRTSs are still too expensive to be a general tool for all.

Chapter Contents:

  • 14.1 Introduction
  • 14.1 Introduction
  • 14.1.1 Modelling considerations
  • 14.1.1 Modelling considerations
  • 14.1.2 Time-step and plot-step
  • 14.1.2 Time-step and plot-step
  • 14.1.3 Avoiding singularities
  • 14.1.3 Avoiding singularities
  • 14.1.4 Initialisation
  • 14.1.4 Initialisation
  • 14.2 Lightning studies
  • 14.2 Lightning studies
  • 14.2.1 EMT modelling
  • 14.2.1 EMT modelling
  • 14.2.2 Back-flashover modelling
  • 14.2.2 Back-flashover modelling
  • 14.2.3 Surge arrester modelling
  • 14.2.3 Surge arrester modelling
  • 14.2.4 Direct lightning strike to phase conductor
  • 14.2.4 Direct lightning strike to phase conductor
  • 14.2.5 Lightning strike to ground wire or tower
  • 14.2.5 Lightning strike to ground wire or tower
  • 14.3 Capacitor switching studies
  • 14.3 Capacitor switching studies
  • 14.3.1 Inrush
  • 14.3.1 Inrush
  • 14.3.2 Back-to-back switching
  • 14.3.2 Back-to-back switching
  • 14.3.3 Voltage magnification
  • 14.3.3 Voltage magnification
  • 14.4 Transformer energisation
  • 14.4 Transformer energisation
  • 14.4.1 Parallel sympathetic interaction
  • 14.4.1 Parallel sympathetic interaction
  • 14.4.2 Other issues
  • 14.4.2 Other issues
  • 14.4.3 Mitigation
  • 14.4.3 Mitigation
  • 14.4.4 Modelling
  • 14.4.4 Modelling
  • 14.5 Transient recovery voltage studies
  • 14.5 Transient recovery voltage studies
  • 14.6 Voltage dips/sags
  • 14.6 Voltage dips/sags
  • 14.6.1 Examples
  • 14.6.1 Examples
  • 14.7 Voltage fluctuations
  • 14.7 Voltage fluctuations
  • 14.7.1 Modelling of flicker penetration
  • 14.7.1 Modelling of flicker penetration
  • 14.8 Voltage notching
  • 14.8 Voltage notching
  • 14.9 Wind power
  • 14.9 Wind power
  • 14.9.1 Type 3 WTG
  • 14.9.1 Type 3 WTG
  • 14.9.2 Type 4 WTG
  • 14.9.2 Type 4 WTG
  • 14.10 Solar photovoltaic farm
  • 14.10 Solar photovoltaic farm
  • 14.11 HVDC
  • 14.11 HVDC
  • 14.11.1 HVDC using LCC
  • 14.11.1 HVDC using LCC
  • 14.11.2 HVDC using VSC
  • 14.11.2 HVDC using VSC
  • 14.12 Ferroresonance
  • 14.12 Ferroresonance
  • 14.13 Electric vehicle charging
  • 14.13 Electric vehicle charging
  • 14.14 Heat-pumps/air-conditioners
  • 14.14 Heat-pumps/air-conditioners
  • 14.15 Battery storage
  • 14.15 Battery storage
  • 14.16 Summary
  • 14.16 Summary
  • References
  • References

Inspec keywords: time-frequency analysis; power electronics; dynamic response; computational complexity; constants; power system transients; smart power grids; EMTP; power system simulation

Other keywords: electromagnetic transient studies; computational complexity; time/frequency-domain; dynamic responses; DRTS; power systems electromagnetic transients simulation; power electronic; EMT simulation; smart grid; switching frequency; time constants

Subjects: Mathematical analysis; Mathematical analysis; Power engineering computing; Power systems; Power convertors and power supplies to apparatus

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