Single-phase inverter high frequency ripple suppression

Is there a single phase AC/DC/AC converter with unified ripple power decoupling?

Liu Y, Sun Y, Su M, Li X, Ning S (2018) A single phase AC/DC/AC converter with unified ripple power decoupling. IEEE Trans Power Electron 33:3204–3217 Sun Y, Liu Y, Su M, Xiong W, Yang J (2016) Review of active power decoupling topologies in single-phase systems. IEEE Transact Power Electron 31 (7):4778–4794

How does current ripple affect MPP of a photovoltaic system?

As shown in Fig. 1, the MPP of the PV power generation system will change with the ripple component in the current. When the power converter operates at the MPP, the current ripple will adversely affect the average power output, thus affecting the efficiency and reliability of the photovoltaic system .

What is the suppression strategy of double-frequency ripple?

The suppression strategy of double-frequency ripple for the proposed topology is provided as well. By transferring the double-frequency ripple in the DC-link capacitor of the inverter to another capacitor that has no connection to loads, it can suppress the low-frequency ripple current of the input side effectively.

What is a single phase full bridge inverter?

The single-phase full bridge inverter is shown in Figure 1(a). A single-phase full-bridge inverter converts a DC voltage to an AC voltage by using a modulation technique to the bridge circuit. The bridge circuit is made of semiconductor switching devices e.g. MOSFET or IGBT. Then, a filter is used to produce sinusoidal current and voltage.