FLICKER CONTROL FOR THE ESRF ACCELERATOR In collaboration with - - PowerPoint PPT Presentation

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FLICKER CONTROL FOR THE ESRF ACCELERATOR In collaboration with - - PowerPoint PPT Presentation

Aug 03, 2023 151 likes β€’343 views

FLICKER CONTROL FOR THE ESRF ACCELERATOR In collaboration with ARGENTINA FLICKER CONTROL FOR THE ESRF ACCELERATOR What is Flicker? Power quality parameter of a Point of Common Coupling (PCC). Low frequency variation of RMS value.

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ARGENTINA In collaboration with

FLICKER CONTROL FOR THE ESRF ACCELERATOR

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

What is Flicker?

  • Power quality parameter of a Point of Common Coupling (PCC).
  • Low frequency variation of RMS value.
  • Caused by high pulsed power consumption of a device connected

to a PCC

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By definition: Flicker = πš¬π•πͺπͺ 𝐕 (RMS)

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

Flicker calculation

  • It is desired to reduce the flicker produced by each power device.
  • It is possible to calculate the individual flicker contribution.

πš¬π• = 𝑱 β‹… 𝑺𝒅𝒑𝒕 Ο† + 𝑱 β‹… 𝒀𝒕𝒋𝒐(Ο†)

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

System under study: Booster at the ESRF

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Basic configuration of Ramped Injector Power Supplies (RIPS)

  • For Quadrupole Magnets
  • For Dipole Magnets
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FLICKER CONTROL FOR THE ESRF ACCELERATOR

System under study: Booster at the ESRF (RIPS)

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PCCs At ESRF:

  • 20kV
  • 400V
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FLICKER CONTROL FOR THE ESRF ACCELERATOR

System under study: Booster at the ESRF (RIPS)

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β€œDEVELOPMENT OF A FULL DIGITAL THYRISTOR GATE CONTROL” - POCPA 2014

https://indico.bnl.gov/getFile.py/access?contribId=4&resId=0&materialId=slides&confId=687

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

System under study: Booster at the ESRF (RIPS)

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

System under study: Booster at the ESRF (RIPS)

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

System under study: Booster at the ESRF (RIPS)

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Magnets at RIPS:

  • Quadrupoles
  • Dipoles
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FLICKER CONTROL FOR THE ESRF ACCELERATOR

Flicker propagation

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

Control strategies

  • Constant rectifier output (Open Loop)
  • Constant current control (Current Loop)
  • Flicker control (Current + Flicker Loops)

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

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Control strategies

  • Constant rectifier
  • utput
  • Constant current

control

  • Flicker control

πš¬π• = 𝑱 β‹… 𝑺𝒅𝒑𝒕 Ο† + 𝑱 β‹… 𝒀𝒕𝒋𝒐 Ο† πš¬π• = 𝑱 β‹… 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 β‹… 𝒀𝒕𝒋𝒐(𝜷)

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

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Control strategies

  • Constant rectifier
  • utput
  • Constant current

control

  • Flicker control

Final flicker value: πš¬π• 𝐕 % = 𝟏. πŸ•πŸ”% πš¬π• = 𝑱 β‹… 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 β‹… 𝒀𝒕𝒋𝒐(𝜷) French Standard (@4Hz): <𝟏. πŸ“πŸ–%

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

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Control strategies

  • Constant rectifier
  • utput
  • Constant current

control

  • Flicker control

πš¬π• = 𝑱 β‹… 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 β‹… 𝒀𝒕𝒋𝒐(𝜷)

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

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Control strategies

  • Constant rectifier
  • utput
  • Constant current

control

  • Flicker control

Final flicker value: πš¬π• 𝐕 % = 𝟏. πŸπŸ’πŸ–πŸ% πš¬π• = 𝑱 β‹… 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 β‹… 𝒀𝒕𝒋𝒐(𝜷)

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

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Control strategies

  • Constant rectifier
  • utput
  • Constant current

control

  • Flicker control

πš¬π• = 𝑱 β‹… 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 β‹… 𝒀𝒕𝒋𝒐(𝜷)

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

Future tests on the ESRF booster

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FLICKER CONTROL FOR THE ESRF ACCELERATOR

Thank you

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