Diamond-II Booster BF and Quadrupole Power Converters

2024-03-05

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Published date: 5 March 2024

Open opportunity - This means that the contract is currently active, and the buying department is looking for potential suppliers to fulfil the contract.

Contract summary

Industry

Power converters - 31121110

Location of contract

South East

Value of contract

£0.01

Procurement reference

DLSITT1014

Published date

5 March 2024

Closing date

8 April 2024

Closing time

12pm

Contract start date

30 April 2024

Contract end date

30 January 2026

Contract type

Supply contract

Procedure type

Open procedure (above threshold)

Any interested supplier may submit a tender in response to an opportunity notice.

This procedure can be used for procurements above the relevant contract value threshold.

Contract is suitable for SMEs?

Yes

Contract is suitable for VCSEs?

Description

Located on the Harwell Science and Innovation Campus in Oxfordshire, Diamond Light Source (DLS) is a leading-edge facility for science, engineering and innovation. Diamond allows researchers from academia and industry to investigate the structure and behaviour of the world around us at the atomic and molecular level.
To continue delivering the world-changing science that Diamond enables, the facility is being upgraded to Diamond-II, a co-ordinated programme of development that combines a major machine upgrade with new instruments and complementary improvements to optics, detectors, sample environment and delivery capabilities, and computing, as well as integrated and correlative methods. This will be transformative in speed and spatial resolution and will offer users streamlined access to enhanced instruments for life and physical sciences.

The subject of this call for tender are the power converters for the Booster BF and quadrupole magnets as indicated below.

BF
Number of Magnets: 36
Connection Arrangement: Series
Number of Power Converters: 1

Quadrupole
Number of Magnets: 4 per converter
Connection Arrangement: Series
Number of Power Converters: 5

The solution foreseen for both types of power converters is two quadrant H-Bridges fed from a DC bus/capacitor. The voltage on the capacitor is controlled by a boost regulator fed from an AC/DC SMPS, as shown in Diagrams 1 and 2. This has the advantage of presenting a fairly constant load to the ac distribution system, with energy circulating between the DC bus capacitor bank and magnets. The Booster Quadrupole power converters could have a common DC bus/capacitor and AC/DC SMPS. The contractor may propose an alternative arrangement. There will be three variants of the Booster Quadrupole power converters. They will all have the same power circuit, but two variants will have reduced current control ranges to achieve greater repeatability, resolution, and stability. This will be achieved by fitting different DCCTs and/or current sense resistors.

To apply visit our website which requires suppliers to complete a one-off simple registration form, which will generate a unique password for your account. You are then able to login to register your interest against the Tender and download the tender documents.

Link to the site: https://tenders.diamond.ac.uk/Home.aspx