Pre-series of the new radiation-tolerant power converter controller (FGClite) have been received at CERN, assembled and tested in the dedicated racks.

In the framework of the HL-LHC project, the first phases of the commissioning of the HL-LHC power converter systems of the Inner Triplet String test facility in SM18 have been successfully completed. These phases comprised the Individual System Tests (IST) and Short Circuit Tests (SCT). As a reminder, the IT String test facility aims at…

Article published in the Hilumi HL-LHC project web page August 2023 Also On At CERN

Article published in the Hilumi HL-LHC project web page MARCH 2022 Also On At CERN

Article published in the CERN COURIER JANUARY/FEBRUARY 2022 Also On At CERN

The PSB main magnets are powered by 28 power converters following the schematic represented in Figure 1. The fact that all circuits are magnetically coupled makes the control of these power converters very difficult, as any modification of one control loop has an effect on all the other circuits. This is particularly true for the…

1959 First MPS: BBC (6kA/5.4kV) 1968 Second MPS: SIEMENS (6kA/10.8kV) Power Part simplified Architecture / Topology 2010 POPS / POwer for PS POPS supplies the PS magnets without drawing all the power from the network. The maximum stored energy in the magnets is 14MJ. This energy is supplied by the capacitor banks (CS). This exchange…

In the frame of the LHC-consolidation project, 104 radiation tolerant converters have been produced to replace the old LHC600A-10V power sources located in the irradiated areas RR1x, RR5x and RR7x. The new radiation tolerant design will solve know electrical issues (zero current crossing point) and will improve the accelerator availability thanks to a redundant design.…

HiLumi LHC project requires 36 four quadrant linear converters to trim the inner triplets magnets currents Q1 & Q3, and to power orbit correctors magnets of Q1, Q2, Q3 located in the new areas UR15 (16 units) and UR55 (16 units). A first prototype is already installed in SM18 supplying the new MCBXFA/B orbit corrector…

In the framework of the consolidation program, the East Experimental Area has started its renovation process, during the Long Shutdown #2. The main objective is to refurbish the building 251 completely to host 64 new power converters that will power the new test area once the renovation is finished. 1. The notorious “Selecteur de ligne”…

In the framework of the consolidation program, one power converter used for the ISOLDE GPS line (for separator magnet) and three power converters used in REX-ISOLDE (for 1x separator magnet and 2x steering magnets) have been replaced.This upgrade allows the replacement of ageing power converters and the FGC3 controller implementation with the new class 63,…