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| Process-Integration Based Multi-Objective Optimization for Pulsed Power Supply of Electromagnetic Guns |
| Fan Zhaonan, Yu Xinjie |
| Tsinghua University Beijing 100084 China |
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Abstract A capacitor-based pulsed power system (PPS), which is used to drive the electromagnetic gun, is studied with numerical simulation. The transient electric circuit model for PPS is built using system analysis software Simplorer V7 to simulate the launching process. The launching speed and the system efficiency are two most remarkable objectives, while the rail material limits the maximum acceleration of the projectile. So it is meaningful to find the optimal parameters, i.e. the mass of projectile and trigger time delay, to pursue both the highest launching speed and the highest system efficiency with the given energy storage. In this paper, the process integration software iSIGHT, in which the elite multiobjective algorithm NSGA-II is integrated, is used to automatically execute the key steps in the optimization process and find the Pareto-optimal set for the above problem. With the optimized parameters, both the launching speed and the system efficiency are significantly improved. Meanwhile, the diversity of the Pareto-optimal set enables a wider range of choices while balancing the speed and the efficiency. On the basis of the optimization results, several meaningful qualitative discussions are carried out on the relationship between the armature mass and triggering delay, and the launching speed and the system efficiency.
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Received: 09 December 2009
Published: 04 March 2014
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2010, Vol. 25 
