Current-fed DC motor EMI H-bridge five-level inverter LCL filter Li-ion battery Lyapunov algorithm Medium-Frequency Neutral Point Clamped Converter PFM PI controllers PSCAD/MULTISIM simulation PWFM PWM PWM control techniques Photovoltaics Power-Imbalance Pulse Width Modulation RPWM SEPIC converter Z-Source Z-source inverter Z-source network active balance circuit add-on pulse charger bi-directional converter bidirectional DC/DC converter (BDC) boost converter carrier-based pulse width modulation cascade H bridge multilevel inverter