Abstract |
Inverter-Converter Bridge (ICB) energy transfer circuit consists of two power converters and
the capacitor bank. Each of two superconducting magnets are connected to each of two power
converters and the stored energy is transfered by use of the circuit. The circuit has been mainly
studied as an exciter circuit for pulse superconducting magnets because it enables to excite the
large magnet quickly without aecting the power systems. It is easy to construct the required
large capacity because the circuit can be made for natural commutation thyristors.
The circuit, which is connected to power system through the converter (utility tie converter),
has attractive features for SMES power converter, for instance, wide control region of active
and reactive power without forced commutative power devices. The relation between utility tie
converter control and the ICB circuit control is important for realizing SMES converter system.
In this paper, the power conditioning method of ICB energy transfer circuit has been discussed
to adopt ICB energy transfer circuit as power supply for SMES. The theoretical analysis and
the experimental results are shown. |