Nonlinear virtual flux oriented control for sensorless active filters

Ketzer, Marcos B.; Jacobina, Cursino B.

doi:10.1109/cobep.2013.6785146

Cited by 12 publications

(2 citation statements)

References 16 publications

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“…• Voltage-oriented control (VOC) [4][5][6][7][8][9][10], where the phase information of the voltage signals is estimated and used to define the references of the AC schemes. • One-cycle control [7,[11][12][13][14][15][16], which uses the concept of resistance emulation.…”

Section: Introductionmentioning

confidence: 99%

“…The well‐known control strategies for shunt active filters can be subdivided into the following classes: Voltage‐oriented control (VOC) [4–10], where the phase information of the voltage signals is estimated and used to define the references of the AC schemes. One‐cycle control [7, 11–16], which uses the concept of resistance emulation. Current shaping [10, 17], a digital solution that uses the concept of impedance emulation. …”

Section: Introductionmentioning

confidence: 99%

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Shaping control strategies for active power filters

Ketzer

Jacobina

Lima

2018

IET Power Electronics

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This study presents a general control strategy for active power filters derived from the current-shaping principle previously employed in shunt active filters. The generalisation introduced here and denoted as voltage-current shaping control, exploits the symmetry between the possible wave-shaping solutions, and can be applied to shunt, series, and more complex networks of active filters. Moreover, the proposed generalisation allows the synthesis of specific control schemes with a reduced number of sensors. The relevant properties of the proposed schemes in the application of harmonic mitigation are determined. Further, a discussion of the integration of multiple quasi-resonant schemes is presented. Using this approach, it is possible to fine-tune the mitigation of specific components in the harmonic profile from the voltages or currents in the circuit. Experimental results obtained from using a 1 kVA prototype are presented to support the proposed generalisation.

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