Introduction
Passive harmonic filters have been in use
on power systems for many years. They
are simple and need very little
maintenance. Two reasons are often
cited as their drawbacks: (i) need for
numerically intensive repetitive
calculations by skilled designers (ii)
sensitivity to topology changes (quite
common in low voltage applications)
and the resulting need for fkequent
update. The goal of this paper is to
address these problems through the
development of computer software
combining the best of a popular numbercrunching
software (Mathcad) and Excel
spreadsheet. Output results generated by
the software for a sample system are
presented below. The topology and
configuration of capacitors and reactors
forming the filters is well known [ 13 and
will not be repeated here.