ANALYSIS AND DESIGN OF A NEW ACTIVE POWER FILTER TO CANCEL NEUTRAL-CURRENT HARMONICS IN 3-PHASE 4-WIRE ELECTRIC DISTRIBUTION-SYSTEMS Academic Article

abstract

• Recent surveys of 208/ 120 V three-phase four-wire electric systems, buildings, and industrial plants with computers and nonlinear loads show excessive currents in the neutral. These neutral currents are fundamentally third harmonic, and their presence is tied to wiring failures, elevating of neutral potentials, transformer overheating, etc. In response to these concerns, this paper proposes a new active power filter scheme to cancel neutral current harmonics. The proposed approach employs a star / delta transformer along with a two-switch PWM-controlled active filter. The closed loop control of the active power filter guarantees cancellation of neutral current harmonics under varying load conditions. The proposed system drastically improves the overall system performance and virtually eliminates transformer overheating due to harmonics. Experimental results from a prototype active power filter confirm the suitability of the proposed approach. 1994 IEEE

authors

• Enjeti, Prasad

published proceedings

• IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS

altmetric score

• 6

author list (cited authors)

• ENJETI, P. N., SHIREEN, W., PACKEBUSH, P., & PITEL, I. J.

citation count

• 72

complete list of authors

• ENJETI, PN||SHIREEN, W||PACKEBUSH, P||PITEL, IJ

publication date

• November 1994

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

keywords

• 40 Engineering
• 4007 Control Engineering, Mechatronics And Robotics
• 4008 Electrical Engineering
• 4009 Electronics, Sensors And Digital Hardware
• 4010 Engineering Practice And Education
• 7 Affordable And Clean Energy

Digital Object Identifier (DOI)

• 10.1109/TIA.1994.350311

start page

• 1565

end page

• 1572

volume

• 30

issue

• 6

URL

• http://dx.doi.org/10.1109/tia.1994.350311

user-defined tag

• 7 Affordable and Clean Energy