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

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. • Caused by high pulsed power consumption of a device connected to a PCC By definition: 𝚬𝐕 𝐪𝐪 Flicker = (RMS) 𝐕 Page 2 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

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. 𝚬𝐕 = 𝑱 ⋅ 𝑺𝒅𝒑𝒕 φ + 𝑱 ⋅ 𝒀𝒕𝒋𝒐(φ) Page 3 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR System under study: Booster at the ESRF Basic configuration of Ramped Injector Power Supplies (RIPS) • For Quadrupole Magnets • For Dipole Magnets Page 4 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR System under study: Booster at the ESRF (RIPS) PCCs At ESRF: • 20kV • 400V Page 5 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR System under study: Booster at the ESRF (RIPS) “DEVELOPMENT OF A FULL DIGITAL THYRISTOR GATE CONTROL” - POCPA 2014 https://indico.bnl.gov/getFile.py/access?contribId=4&resId=0&materialId=slides&confId=687 Page 6 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR System under study: Booster at the ESRF (RIPS) Page 7 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR System under study: Booster at the ESRF (RIPS) Page 8 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR System under study: Booster at the ESRF (RIPS) Magnets at RIPS: • Quadrupoles • Dipoles Page 9 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR Flicker propagation Page 10 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR Control strategies • Constant rectifier output (Open Loop) • Constant current control (Current Loop) • Flicker control (Current + Flicker Loops) Page 11 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR Control strategies • Constant rectifier output • Constant current control • Flicker control 𝚬𝐕 = 𝑱 ⋅ 𝑺𝒅𝒑𝒕 φ + 𝑱 ⋅ 𝒀𝒕𝒋𝒐 φ 𝚬𝐕 = 𝑱 ⋅ 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 ⋅ 𝒀𝒕𝒋𝒐(𝜷) Page 12 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR Control strategies • Constant rectifier output • Constant current control • Flicker control 𝚬𝐕 = 𝑱 ⋅ 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 ⋅ 𝒀𝒕𝒋𝒐(𝜷) Final flicker value: 𝚬𝐕 % = 𝟏. 𝟕𝟔% 𝐕 French Standard (@4Hz): < 𝟏. 𝟓𝟖% Page 13 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR Control strategies • Constant rectifier output • Constant current control • Flicker control 𝚬𝐕 = 𝑱 ⋅ 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 ⋅ 𝒀𝒕𝒋𝒐(𝜷) Page 14 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR Control strategies • Constant rectifier output • Constant current control • Flicker control 𝚬𝐕 = 𝑱 ⋅ 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 ⋅ 𝒀𝒕𝒋𝒐(𝜷) Final flicker value: 𝚬𝐕 % = 𝟏. 𝟏𝟒𝟖𝟐% 𝐕 Page 15 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR Control strategies • Constant rectifier output • Constant current control • Flicker control 𝚬𝐕 = 𝑱 ⋅ 𝑺𝒅𝒑𝒕 𝜷 + 𝑱 ⋅ 𝒀𝒕𝒋𝒐(𝜷) Page 16 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR Future tests on the ESRF booster Page 17 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito

FLICKER CONTROL FOR THE ESRF ACCELERATOR Thank you Page 18 l Flicker Control for the ESRF Accelerator l 24/05/2016 l Mauro di Vito