WITHDRAWN: A high gain multi-port bidirectional converter with reduced voltage stress

Abstract

Abstract The energy storage becomes an essential part to exploit the intermittent form of renewable resources more effectively. Further it is mandate for a battery source to have a built in port for charging and discharging phenomena. A novel idea on multi port non-isolated bidirectional converter (M-NIBC) is proposed and experimented for improved voltage gain and reduced voltage stress in this paper. M-NIBC topology is devised with four electronic switches with a freewheeling diode across each and moreover two inductors and three capacitors certainly make the passive circuitry operation. Energy derived from the regenerative braking is sufficient to charge the battery and it can be done through the feedback control of bidirectional power flow. The voltage is shared in the respective module and thereby the stress across the switch is minimized to an extent. The successive reduction in voltage stress controls the ON state resistance of the semiconductor device eventually. Voltage gain of the proposed M-NIBC is comparatively lower than the conventional cascaded bidirectional converter (CBC) during the charging cycle whereas it is relatively higher in discharging cycle. The proposed M-NIBC is configured in a simpler way to control and this approach is tested in the simulation laboratory for validating its novel performance under the charging and discharging cycles respectively.