Photovoltaic and mains complementary inverter

Why is a power converter important in solar PV power conversion?

A power converter is crucial in the process of solar PV power conversion since it converts power generated from PV system into the required form. The PV system generates output in terms of DC voltage, which is intrinsically unstable and and may result in power quality issues.

Which inverter topologies should be used as HPFC in PV applications?

The choice of individual inverter topologies as a HPFC in PV applications depends on their performance, cost, size and implementation factors. Table 1 gives the comparison of power component required per phase-leg for the above-discussed MLI topologies. From Table 1, it is evident that the CHB-MLI demonstrates the lowest need for power components.

Are asymmetrical voltage sources better than conventional two-level inverters?

The better characteristics of MLIs compared to conventional two-level inverters are leading to their increased utilization. Using asymmetrical voltage sources for the MLI leads to significant enhancements in voltage characteristics and a decrease in multiple components.

Does asymmetric multilevel inverter reduce leakage current?

A PV power Conditioning System using Asymmetric Multilevel Inverter with Hybrid Control Scheme and reduced Leakage Current. 32:7602–7614. (2017). Sharma, B. & Nakka, J. Single-phase cascaded multilevel inverter topology addressed with the problem of unequal photovoltaic power distribution in isolated dc links.