On the pulse power supply of ring electromagnets of heavy ion accelerators

To provide pulse power supply for ring electromagnets of heavy-ion accelerators characterized by great oscillations in reactive power, two pulse power supply circuits using preliminary charged capacitor banks have been designed. In this circuit the auxiliary stabilized supply is connected in series with the bridge circuit the diagonal of which incorporates the storage capacitor bank and is controlled by a programmed reference-voltage source. In the first circuit the capacitor bank serves to cover energy losses of the magnetic field and active losses during the pulse rise time. The increase of power of the auxiliary supply in the second circuit makes it possible to con iderably unload the bank and thyristor switches. The advantages of pulse power supply circuits are low current ripples during both the current rise and the slow output, a considerable decrease in consumed amplitude power and a low value of consumed reactive power