Many communities around the world have no access to an electricity grid. To supply
power to these people, stand-alone power systems are often used, the majority of
which are based on diesel generators. Rising fuel costs and environmental concerns
make the use of renewable energy in stand-alone systems increasingly attractive.
The research reported in this thesis was to demonstrate a stand-alone power system
based exclusively on renewable energy sources. To achieve this, a DC electrical
backbone is used. Power electronic converters are used to interconnect the loads
and generators and hydrogen is used as an inter-seasonal energy store.
The design and control of the DC based stand-alone power system forms the
primary focus of this research.
A demonstration system has been implemented at West Beacon Farm in the UK.
Substantial data has been collected that confirms the successful operation of the
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.