Intelligent power converter control for grid integration of renewable energies

This invention describes a method for connecting energy sources, like wind turbines, to the electrical grid using a specific type of power converter. It uses an AC/DC/AC converter with a DC link in the middle, and applies a specialized control technique called d-q control to keep the DC voltage steady, ensure good power quality, and balance the phases on the grid. The claims narrow the invention to this specific converter architecture and d-q control method.

Why it matters: Control hardware and software have advanced significantly since 2010, making complex d-q control algorithms more feasible and cost-effective. The need for stable grid integration of variable renewable energy sources has also intensified.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedPower electronics, control algorithms, custom software

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