Analysis and Test Efficiency of a High-Power Pulsed Power Supply Based on HIA

The high-power pulsed power supply based on homoploar inductor alternator (HIA) was successfully used as a primary power supply of the pulse load. This type of power supply has the advantages of high-power density and high reliability. The efficiency of this power supply is an important parameter in the design of this power supply. This paper presents the analysis and test efficiency of it. The theoretical calculation is consistent with the test, and the results show that the efficiency is 75%-80%; the armature copper losses account for the largest proportion of total losses, and the iron losses take the second proportion. The large armature copper losses are due to the extremely serious skin and squeezing effects. The analysis and test results are benefit for estimating the required inertial energy storage. Finally, the design aspects about the losses of pulsed HIA are discussed, and it is helpful for the optimal design of a high-efficiency pulsed HIA for capacitor charge power supply.