Abstract
This chapter discusses the use of harmonic load flow in industrial power systems. The harmonic pollution due to power electronic converters is a major problem in industrial power system. The classical techniques for studying harmonic propagation consider only the basic components. They do not take into account the interactions among them through the electrical network. Harmonic load flow is a tremendous tool for assessing the propagation of harmonics on an industrial distribution system. The chapter presents an overview of the basic notions about harmonics and harmonic load flow. The probabilistic harmonic load flow is considered as a tool to quickly monitor the harmonic pollution and its effect in industrial power systems. It is also useful to calculate the probability that a harmonic index exceeds the limit fixed by technical standards. Passive harmonic filters are an effective mitigation method for harmonic problems. The passive filtering provides a tremendous tool to divert troublesome harmonic currents in the power systems. Optimization algorithms can provide a useful tool to minimize cost in the synthesis of passive filters in industrial systems. The chapter addresses the optimal allocation of passive filters. Finally, it discusses a case study based on a real-world experience.
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