Modeling and Analysis of a Multilevel Parallel Hybrid Active Power Filter

Abstract

This paper introduces a new control approach for the Multilevel Parallel Hybrid Active Power Filter (M-PHAPF) which can compensate harmonics and variable reactive power demand of loads by controlling the DC link voltage adaptively in medium voltage applications. By the means of this novel control method, M-PHAPF obtains a better and more efficient performance in the compensation of harmonics and reactive power compared to when using conventional control methods. The performance and stability of the proposed method are verified with a simulation model realized in PSCAD/EMTDC with different case studies. The simulation results demonstrate that harmonic compensation performance meets the requirements of the IEEE-519 standard.

A New Design and Implementation of a Three-Phase Four-Wire Shunt Active Power Filter for Mitigating Harmonic Problems caused by Compact Fluorescent Lamps

“…Generally, a SAPF consists of three main blocks: the power device block, the reference current calculation block, and the power switches control block. From the literature review, it is found that several typologies of SAPF filters have been invented during the last years [16][17].…”

A Modular Cascaded Multilevel Inverter Based Shunt Hybrid Active Power Filter for Selective Harmonic and Reactive Power Compensation Under Distorted/Unbalanced Grid Voltage Conditions

“…Several hybrid APF (HAPF) topologies are introduced in [2-10, 13] for reactive power and harmonic current filtering. The most common topologies are shunt HAPF (SHAPF) [4][5][6][7][8][9][10][11][12] consisting of an APF and a passive filter connected in series with each other and series HAPF [3] which is a combined system of the shunt passive filter and a series APF. An extensive overview of the topological structures is given in [2,13].…”

“…Most articles describe research focused on low voltage levels. On the contrary, Multilevel SHAPF (M-SHAPF) [6][7][11][12] is the most often used in medium voltage levels in industrial applications.…”

“…The controller design is the most important part due to its impact on the performance and stability of the overall system. For this reason, numerous control methods such as pq theory [4], dq theory [5][6][7]12], fuzzy controller [8] etc… have been applied for the harmonic compensation in the literature. In literature, shunt hybrid active power filters [2][3][4][5][8][9][10] are restricted to balanced systems and low voltage applications and thus cannot be employed for industrial applications.…”