U.S. officials Investigating Rogue Communication
U.S. energy officials have launched an investigation after discovering unauthorized communication equipment embedded within
A high-level block diagram of a grid-connected solar microinverter system is shown in Figure 4. The term, “microinverter”, refers to a solar PV system comprised of a single low-power inverter module for each PV panel.
U.S. energy officials have launched an investigation after discovering unauthorized communication equipment embedded within Chinese-manufactured solar power inverters connected to critical infrastructure grids across the country.
The multi-frequency grid-connected inverter topology is designed to improve power density and grid current quality while addressing the trade-off between switching frequency and power losses . Traditional grid-connected inverters rely on power filters to meet harmonic standards, but these filters increase system complexity, cost, and size.
Traditional grid-connected inverters rely on power filters to meet harmonic standards, but these filters increase system complexity, cost, and size. The proposed topology introduces a multi-frequency operation mechanism, where the circuit is divided into 2 units: a power-inverter unit and a filter-rectifier unit.
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