Resonance power supplies for large accelerator

Technical Report · Mon Mar 01 04:00:00 EST 1993

OSTI ID:10134533

Karady, G ^[1]; Schneider, E J ^[2]

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1. Arizona State Univ., Tempe, AZ (United States)
2. Los Alamos National Lab., NM (United States)

The resonance power supply has been proposed as an efficient power supply for a future 6 GB, keon producing accelerator. This report presents a detailed analysis of the circuit operation. Based on these analyses each component is designed, one line diagram is developed, component requirements are determined and a detailed cost estimate is prepared. The major components of the system are: the magnet power supply, high voltage by-pass thyristor switch, with l0kA repetitive interruption capability, capacitor banks, capacitor bank thyristor switch, and an energy make up device. The most important components are the bypass thyristor switch and the energy injection device. The bypass thyristor switch is designed to turn on and interrupt to 10 kA dc current with a recovery voltage of 20kV and repetition frequency of 3 Hz. The switch consists of a large array of series and parallel connected thyristors and gate turn off (GTO) devices. The make up energy device is designed to replace the circuit energy losses. A capacitor bank is charged with constant current and discharged during the acceleration period. One of the advantages of the developed circuit is that it can be supplied directly from the local power network. In order to prove the validity of the assumptions, a scaled down model circuit was thoroughly tested. These tests proved that the engineering design of critical components is correct and this resonant power supply can be properly controlled by an inventer/rectifier connected in series with the magnet and by the make up energy device. This finding reduces the system cost.

• Research Organization: Los Alamos National Lab., NM (United States); Arizona State Univ., Tempe, AZ (United States); Science Applications International Corp., Princeton, NJ (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10134533
• Report Number(s): LA-SUB--93-44; ON: DE93008327
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303
ACCELERATORS
COST ESTIMATION
DESIGN
EXPERIMENTAL FACILITIES AND EQUIPMENT
KAONS
POWER SUPPLIES
THYRISTORS