Ripple-Port Module-Integrated Inverter for Grid-Connected PV Applications Conference Paper uri icon


  • The single-phase inverter has inherent double-frequency power ripple, which if not internally mitigated, appears at the input port and deteriorates the maximum power point tracker performance. Conventional dc link inverter topologies filter this significant double-frequency ripple by means of the bus capacitance, usually in the form of electrolytic capacitors, which have well known lifetime challenges. This paper presents a double-frequency ripple cancellation concept and experimental proof of concept. The proposed module-integrated inverter is based on the commonly used two-stage inverter. However, a third port is added for ripple cancellation purposes. Hence, a very small capacitance is needed, and, as a result, a high-reliability film capacitor can be used instead of the bulky low-reliability electrolytic ones. 2013 IEEE.

published proceedings


altmetric score

  • 3

author list (cited authors)

  • Harb, S., Mirjafari, M., & Balog, R. S.

citation count

  • 56

complete list of authors

  • Harb, Souhib||Mirjafari, Mehran||Balog, Robert S

publication date

  • January 2013