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Analysis of the power quality impact of multiple directed energy loads on an electric ship power system   bob hebner angelo gattozi - june 2010
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Analysis of the power quality impact of multiple directed energy loads on an electric ship power system bob hebner angelo gattozi - june 2010

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  • An overall aim is to develop a simulator that could be operated by students/officers where we could plug in various components and test different scenarios in real-time.Show Oscar animation (mention it is not a simulation)

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  • 1. Analysis of the Power Quality of Multiple Directed Energy Loads on an Electric Ship Power System
    June 17, 2010
    Picture from Boeing
  • 2. Outline
    Overall Objectives
    Motivation for Electric Ships & Integrated Power Systems
    Overview of Free Electron Lasers
    States of Readiness for the FEL
    Simulink Model of the FEL (and Combined Systems)
    Results
  • 3. Objectives
    Determine the needed infrastructure and supporting equipment for the expected loads (FEL, rail gun, SONAR, radar, propulsion, etc.)
    Anticipate the possible time-dependent power profiles based upon expected operational scenarios
    Study transient effects on the power system
    Provide a basis for a real time simulator for personnel training
  • 4. Integrated Power Systems
    Conventional, segregated power systems isolate the majority of power production for propulsion
    Integrated power systems (IPS) provide a common power grid for all loads, including propulsion
    Segregated
    Integrated
  • 5. Components Modeled
    Our computational model incorporates the following systems, all powered by an IPS:
    Free Electron Laser (FEL)
    AN/SQQ-90 Sonar System
    Electromagnetic Rail Gun
    Active Denial System
    Advanced Radar
    Electromagnetic Aircraft Launch System
    Laser Weapon System
    Propulsion
    Hotel Loads
  • 6. What is an FEL?
    No physical medium to damage
    Natural scaling to very high average power
    No harmful chemicals or exhaust
    Technology can be designed for a wide range of wavelengths
    Excellent optical mode quality
    Good “wall-plug” efficiency (using an energy recovery linac)
  • 7. Collaboration with NAVSEA, UTA-CEM, Stanford, AES, JLab
    FEL Component Overview(maximum power draw)
  • 8. FEL States of Readiness
    [~4000 GPH for normal cruise operations, excluding FEL]
  • 9. Pierside
  • 10. Underway
  • 11. Hot Standby
  • 12. Engagement
  • 13. Operational Readiness Between Shots
  • 14. FEL Simulink Model
    IPS/6000 VDC
    112 VAC
    450 VAC
    600 VDC
    4160 VAC
    45 kVDC
    High fidelity models exist for the other loads, as well as a combined hi/fi model.
  • 15. Perturbations Induced by Starting FEL Cooling Units
    450 VAC & 600 VDC Buses
    600 VDC bus volts
    Volts, Amps
    450 VAC bus line-to-line volts
    Line amperes/100
    Time (s)
  • 16. Perturbations Induced by Starting FEL Cooling Units
    Four, 3-Phase Windings
    Generator Line Amperes
    Time (s)
  • 17. Loss of One Phase of Main Generator
    Line a1 (A)
    DC bus (V x 104)
    Line-to-linea1-b1 (V)
    DC bus (A x 104)
  • 18. Low Impedance Fault on 450 VAC Bus
    Line Current(A/100)
    600 VDC bus (V)
    450 VAC busline-to-line (V)
  • 19. Electric Ship Simulator Concept
    FEL
    Rail Gun
    NPS
    Electric Ship
    Simulator
    Radar
    Operator
    (Admiral, students)
    Sonar
    Propulsion
    LaWS