Power System Reliability Analysis with Distributed Generators
作者:
所属专业方向:
Electrical Engineering
摘要:
Reliability is a key aspect of power system design and planning. In this
research we present a reliability analysis algorithm for large scale, radially
operated (with respect to substation), reconfigurable, electrical distribution
systems. The algorithm takes into account equipment power handling constraints
and converges in a matter of seconds on systems containing thousands of
components. Linked lists of segments are employed in obtaining the rapid
convergence. A power flow calculation is used to check the power handling
constraints. The application of distributed generators for electrical distribution
systems is a new technology. The placement of distributed generation and its
effects on reliability is investigated. Previous reliability calculations have been
performed for static load models and inherently make the assumption that system
reliability is independent of load. The study presented here evaluates improvement
in reliability over a time varying load curve. Reliability indices for load points and
the overall system have been developed. A new reliability index is proposed. The
new index makes it easier to locate areas where reliability needs to be improved.
The usefulness of this new index is demonstrated with numerical examples.