MCG with EEOS application to forming line power supply

Abstract

Inductive storage of energy (IS) with EEOS allows one to charge forming line during about 10/sup -7/ sec therefore providing high electrical strength of insulation as well as small size and weight. In the paper, by means of numerical simulation and physical modeling three schemes of device with primary source energy amplifier-explosive magnetic generator (EMG) are analyzed. The schemes are distinguished by the charging models: a) EMG+dynamic transformer+IS+EEOS, b) EMG+transformer IS(TIS)+EEOS and c) EMG+EEOS+TIS. The basic parameter defining efficiency of the device operation is (/spl radic/L/sub IS/C/sub FL/)//spl tau/ which is the characteristic time of (IS-FL) circuit to time constant of EEOS ratio. The last is practically a single-valued function of effective (by EEOS current action integral) EMG current rise-time. Scheme a) in comparison with scheme c) provides the minimum rise-time of voltage across FL as a capacitor, but boosts it in efficiency of energy transfer, overall dimensions (wire case sizes are bigger than FL ones and have the maximum achievable voltage peak). Scheme b) is an intermediate one by its characteristics. The fulfilled analysis of the given schemes in comparison with the same schemes with a bank of capacitors as a power source, showed a significant advantage of EMG used in a wide range of FL capacitance (up to subnanofarads) at FL energy content of more than 10/sup 2/ J.