Experiment and research on control strategy for a new-type three-phase solid-state current limiter

According to many Chinese patents, a new-type three-phase solid-state current limiter topology and its characteristics together with the principle are presented here to satisfy with the actual requirements of the three phase electric power system. In order to switch off the transmission line as soon as possible, there are there modes of control strategy presented here. The fixed time mode is also developed to meet certain case, like delaying time protection. The corresponding control function is given, too. Experimental results illustrate that the topology and control method for this new-type three-phase solid-state current limiter is effective, and agree well with the design, and have a good future in the industrial application as well.