Trends in power factor correction with harmonic filtering

Conference Paper · October 1991with3 Reads
DOI: 10.1109/PCICON.1991.162943 · Source: IEEE Xplore
Conference: Petroleum and Chemical Industry Conference, 1991, Record of Conference Papers., Industry Applications Society 38th Annual
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 [2] [5] [7] [8] [9] [13] [16] [18] [19] [20] [22]. This group also includes band-pass filters, (BPF) and harmonic blocking compensators (HBC) [6]. "
    [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 is presented
    Conference Paper · Feb 2000 · IEEE Transactions on Power Delivery
  • [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
    Conference Paper · Jun 1995 · IEEE Transactions on Power Delivery
  • [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.
    Article · May 2004
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