Simulation of Novel Three-Level Shunt Active Power Filter

Abstract:

A new topology of shunt active power filter with two-leg three-level clamped capacitor in the main circuit is presented, and the operation principle and control scheme are introduced. The adopted device is operated as a controllable current source to eliminate current harmonics. The new hysteretic current comparison control scheme is used to track the command current and to balance the neutral-point voltage. Meanwhile the redundant operating states in the adopted inverter can be selected to compensate the clamped capacitor voltage to achieve the dynamic balance of the capacity voltage. Simulation results show that the shunt active power filter can effectively eliminate harmonics of the nonlinear loads.

• Periodical: Applied Mechanics and Materials (Volumes 195-196)
• Pages: 748-753
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.195-196.748
• Online since: August 2012
• Authors: Xing Gang Li, Ren Yong Feng, Hai Zhen Kang, Zhi Guo Shi
• Keywords: Active Power Filter (APF), Harmonics, Hysteretic Current Comparison, Three-Level

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