Performance Improvement of an Active Harmonic Suppressor System Under Unbalanced Load Conditions

Se-Wan Choi; Min-Soo Jang

Performance Improvement of an Active Harmonic Suppressor System Under Unbalanced Load Conditions

Se-Wan Choi

Min-Soo Jang

Vol. 3, No. 3, pp. 151-158, Jul. 2003

10.6113/JPE.2003.3.3.151

Active filter

Neutral current

Three-phase four-wire

Zero-sequence harmonics

PDF

Abstract

Three-phase four-wire electrical distribution systems are widely employed in manufacturing plants, commercial and residential buildings Due to the nonlinear loads connected to the distribution system, the neutral conductor carries excessive harmonic currents even under balanced loading since the triplen harmonics in phase currents do not cancel each other This may result in wiring failure of the neutral conductor and overloading of the distribution transformer In response to these concerns, a cost-effective neutral current harmonic suppressor system has been proposed[6] This paper proposes an improved control method for the harmonic suppressor system under unbalanced load conditions The proposed control method compensates for only the harmonic components in the neutral conductor, and the zero-sequence fundamental component due to unbalanced loading is prevented from flowing through the harmonic suppressor system This remedies overloading and power loss of the system The experimental results on a prototype validate the proposed control approach.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

S. Choi and M. Jang, "Performance Improvement of an Active Harmonic Suppressor System Under Unbalanced Load Conditions," Journal of Power Electronics, vol. 3, no. 3, pp. 151-158, 2003. DOI: 10.6113/JPE.2003.3.3.151.

[ACM Style]

Se-Wan Choi and Min-Soo Jang. 2003. Performance Improvement of an Active Harmonic Suppressor System Under Unbalanced Load Conditions. Journal of Power Electronics, 3, 3, (2003), 151-158. DOI: 10.6113/JPE.2003.3.3.151.