Stress analysis and structure optimization of pulse power cable

The high electromagnetic force produced by the pulse current is the main reason for the damage of pulse power cable, which also limits the current capacity of pulse power cable. We simulate the stress of the coaxial cable conductor layer, and discuss the cable conductor structures influence on the current capacity of pulse power cable. We example one kind of used coaxial cable, analyze the force of the outer conductor layer and the structure change tendency about the cable, and discuss the test result. Based on all of thoes, we research another structure type coaxial cable, and we believe that it has better capacity to oppose electromagnetic force. The experimental results show that the peak current of the new cable can achieve 208 kA, and the current capacity can achieve 6.9 kA/mm2, which can verify the superiority of the cable. Finally we provide a way to solve the problem of using too many cables in pulse power system.