Microcomputer Controlled Current Sharing Experiments with Parallel Convertors

摘要

Power conditioning circuits for a Superconductive Magnetic Energy Storage (SMES) coil will require many parallel SCR devices because the operating current is planned to be as high as a few hundred thousand amperes. In order to maintain current balance in the parallel units, a microcomputer controlled system that adjusts the delay angle of individual units is envisioned. Studies and tests on an 8-H model with two parallel 9 kVA bridge circuits are described. (ERA citation 10:046577)