This work presents the result of employing a custom test-rig, designed for education and research, for teaching the control of synchronous generators in interconnected micro-grids. The teaching approach used allows implementing innovative teaching activities with experimental experiences, useful as support tool for courses in control, electronics, power electronics, and control of electrical machines. The developed test-rig was used in a postgraduate and undergraduate power electronics courses, with two different approaches: as student-run platform, and demonstrative practices managed by professors. The training activities using the test-rig platform has been evaluated by a owndesigned surveys. The results shown satisfactory effectiveness in aspects as relevance, learning assistance, contextualization of real problems, among others.