ABSTRACT
AC/DC/AC and DC/AC/DC conversion technologies are a special subject area in research and industrial applications. AC/DC/AC converters are usually applied in synchronous and asynchronous AC motor adjustable speed drives (ASDs). In recent years, they have also been widely used in renewable energy systems, especially in wind turbine energy systems. DC/AC/DC converters are usually applied in high-voltage equipment to isolate the source side and the load side. They are also adopted in medium and small power systems such as solar panels, photovoltaic cells, and fuel cell energy systems.
