In this chapter an introduction to DPGS based on
renewable energy sources (RES) is given. The need of distributed power
generation is justified by both the limitations of fossil fuels in
terms of sustainability and pollution and by the stability an
reliability problems related to large central power plants (ex.
California blackout). Various distribution generation (DG) technologies
are briefly discussed,
and general operation and control in power systems
are discussed.
The energy potential, actual technology ,
development and economics of PV and WT RES is described. DGPS
based on WT and PV require maximum power point trackers (MPPT) in
order to maximize the yield of energy at all times.
Then the most competitive renewable energy source,
wind power, is detailed. The state of the art technologies of various
types of wind power systems are presented. The operation and control of
these systems are discussed, their features are highlighted while the
challenges are indicated as well. Furthermore, the requirements of
interconnection of wind power systems are introduced, the power and
voltage quality issues are addressed. The possible roles that the
modern power electronic technology could play in meeting the challenges
are discussed.
