An overview of the power system harmonics problem is presented. How utilities are beginning to interpret and apply harmonic standards is examined. The author discusses static converter theory, circuit theory, harmonic problems, standards, conformance strategy, and case examples
"Reactive harmonic suppressors enable reduction of harmonics by a modification of the frequency properties of the system. Resonant harmonic filters (RHFs) are the most common reactive harmonic suppressors           . This group also includes band-pass filters, (BPF) and harmonic blocking compensators (HBC) . "
[Show abstract][Hide abstract] ABSTRACT: Economic benefits from using power electronics equipment are much
more visible than losses caused by harmonics produced by this equipment.
Consequently, we enter the New Millenium with sources of harmonic
distortion more and more distributed over distribution systems. We have
to confess that we are much more effective in generating harmonics than
in their elimination. This situation should not propagate into the Next
Century. A more effective method of harmonic suppression is needed.
Harmonics in distribution systems can be suppressed with reactive
devices, switching compensators and hybrid devices built of reactive
devices and a switching compensator. Selection of a method of harmonic
suppression, best suited to particular conditions, requires that
advantages, disadvantages and limitations of these devices, which
exhibit a very broad range of properties, are well comprehended. The
paper compiles and discusses general properties of various methods of
reducing harmonic distortion. Such methods and devices are compared from
the point of view of their effectiveness and related issues in various
field situations. The paper also investigates some possibilities of new
approach to harmonic suppression. In particular, the concept of a
harmonic blocking compensator and a fixed-pole resonant harmonic filter
Power Engineering Society Summer Meeting, 2000. IEEE; 02/2000
[Show abstract][Hide abstract] ABSTRACT: In commercial and institutional buildings, the wider use of power
electronics equipment, such as computer switch-mode power supplies and
compact fluorescent lights with electronic ballasts, can create many
problems. These loads are generally single-phase with a 3rd harmonic
current that can be equal to or more than 60%. The aim of this paper is
to analyze several specific aspects of power system design, such as:
sizing of circuits, and the selection of type of circuits, by
correlating them with this specific problem of distributed nonlinear
load supply. The proposed criteria can be utilised both in a short-term
action for resolution of specific problems, and in medium-term action
for development of new optimization procedures of power system design
Industrial and Commercial Power Systems Technical Conference, 1995. Conference Record, Papers Presented at the 1995 Annual Meeting., 1995 IEEE; 06/1995
[Show abstract][Hide abstract] ABSTRACT: The effectiveness of resonant harmonic filters (RHFs) in harmonic suppression is the resultant of two different types of resonance that affect the filters' effectiveness in an opposite manner. They are the resonance of the filter branches and the resonance of the entire filter with the distribution system inductance. Damping these resonances by reduction of the filter Q-factor affects the filter performance in a complex way. There are suggestions in the literature on RHFs that such a damping would improve the filter effectiveness. Unfortunately, no quantitative information to support such a suggestion is available. This paper presents the results from a study of the effect of the Q-factor on the filter effectiveness and on the loss of active power in the filter.
IEEE Transactions on Power Delivery 05/2004; 19(2-19):846 - 853. DOI:10.1109/TPWRD.2004.824399 · 1.73 Impact Factor
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.