Design of a Series–Parallel All-DC Power Generation System Based on a New DC Wind Turbine

Wind energy is a good alternative to fossil fuels, as the use of fuels has seriously exacerbated emission greenhouse gases such carbon dioxide and greatly affected environment. Conventional AC wind farms transmission systems inevitably face problems involving reactive currents overvoltage in context large-scale, large-capacity, long-distance transmission. However, all-DC turbines, together with DC convergence systems, obvious advantages over terms losses expandability. Such technology does not require bulky frequency transformers can well solve aforementioned overvoltage. This paper proposes new series–parallel structure for an power generation system. The series end uses DC/DC converter based on Cuk circuit current consistency balancing turbine through control, whereas parallel large-capacity capacity transfer principle, problem voltage at grid-connected end. part used increase level system, which reduce huge construction costs offshore platforms, enables its incorporation into large-scale achieve replacement fuel energy.