Three-Phase Three-Wire Active Power Filter With D Digital Control to Accommodate Filter-Inductance Variation
- 5 November 2015
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Emerging and Selected Topics in Power Electronics
- Vol. 4 (1), 44-53
- https://doi.org/10.1109/jestpe.2015.2498189
Abstract
This paper presents a shunt active power filter (APF) with division-summation (D-Σ digital control and based on a three-phase three-wire inverter configuration. The APF shapes source current by introducing one degree of freedom to compensate load harmonic currents. The adopted D-Σ digital control approach can accommodate filter-inductance variation, reducing core size significantly, and it can derive control laws directly. An average power method is adopted in this paper for determining the fundamental current at the source side, which can readily be implemented without complex calculation, frame transformation, and extra filter. In the design and implementation, the inductances corresponding to various inductor currents were estimated at the startup and stored in the microcontroller for scheduling loop gain cycle by cycle, which can ensure the system stability. Measured results from a 5-kVA three-phase APF have confirmed the analysis and discussion of the APF.Keywords
This publication has 50 references indexed in Scilit:
- Current sharing control strategy of parallel inverters using instantaneous symmetrical component theoryPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2014
- A new type of PWM rectifier with function of harmonic suppression and reactive power compensationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2013
- The algorithm of expanded current synchronous detection for active power filters considering three-phase unbalanced power systemIEEE Transactions on Industrial Electronics, 2003
- Unified shunt compensator algorithm based on generalised instantaneous reactive power theoryIEE Proceedings - Generation, Transmission and Distribution, 2001
- A novel approach to the design of a shunt active filter for an unbalanced three-phase four-wire system under nonsinusoidal conditionsIEEE Transactions on Power Delivery, 2000
- Harmonic and reactive power compensation based on the generalized instantaneous reactive power theory for three-phase four-wire systemsIEEE Transactions on Power Electronics, 1998
- New control algorithms for series and shunt three-phase four-wire active power filtersIEEE Transactions on Power Delivery, 1995
- Performance comparison of the three-phase active-power-filter algorithmsIEE Proceedings - Generation, Transmission and Distribution, 1995
- Compensation characteristics of the combined system of shunt passive and series active filtersIEEE Transactions on Industry Applications, 1993
- A New Method to Eliminate AC Harmonic Currents by Magnetic Flux Compensation-Considerations on Basic DesignIEEE Transactions on Power Apparatus and Systems, 1971