The development of cleaner, more efficient ways to power our homes and businesses is vital if we are to address
climate change and energy security issues. This paper presents the design, construction and testing of a 1 kW,
cylindrical high speed permanent magnet synchronous generator for use in a domestic combined heat and power
(CHP) system, employing a turbocharger operating as a small gas turbine. High speed test results are included
together with a critical speed analysis of the generator set. The suitability of the inverted Brayton turbine cycle as an
operating mode for the unit’s turbocharger is also discussed.
© 2013 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of [Nader Anani]
Keywords: Brayton cycle; combined heat and power; high-speed PM machines; micro CHP; small scale generation; turbocharger.