Minimum Inverter Capacity Design for HAPF

Part of the SpringerBriefs in Electrical and Computer Engineering book series (BRIEFSELECTRIC)


This chapter presents a minimum inverter capacity design for three-phase four-wire center-split hybrid active power filter (HAPF) in dynamic reactive power and current harmonics compensation. Based on HAPF equivalent circuit models in d-q-0 coordinate, the coupling part filtering characteristics of the HAPF without or with neutral inductor can be illustrated. According to the current quality data, the minimum dc-link voltage expressions for the HAPF without and with neutral inductor are deduced and compared. Conventionally, the coupling inductor and capacitor (LC) is usually tuned at a higher fifth or seventh order harmonic frequency to reduce its cost and size compared with the third order case. When triplen harmonic currents exist significantly, the HAPF with a small tuned neutral inductor can further reduce its minimum dc-link voltage requirement. Thus, the initial cost, switching loss and switching noise of the HAPF can be lowered. Representative simulation and experimental results of the three-phase four-wire HAPF with neutral inductor are presented to verify the filtering characteristics analysis and minimum dc-link voltage expressions, to show the effectiveness of reducing its inverter capacity, switching loss and switching noise in dynamic reactive power and current harmonics compensation compared with the conventional HAPF without neutral inductor.


Coupling Neutral Inductor Current Harmonics d-q-0 Coordinate  Hybrid Active Power Filter Minimum DC-Link Voltage Reactive Power Switching Loss Switching Noise 


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© The Author(s) 2014

Authors and Affiliations

  1. 1.University of MacauMacaoPeople’s Republic of China

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