In the recent years, development of industry cause to increase nonlinear and time variant loads in power systems. These loads bring about power quality phenomena such as voltage and current harmonics, current unbalance and flicker in power systems. In this paper, an optimal method for active power filter is proposed to improve power quality. The control system of APF is based on combination of ...

This paper presents the survey of the smart grid technologies, including the background, motivation and practical applications. The driving forces for the smart grid technologies are presented, including the blackout, global energy crisis and environmental protection requirement. The key technology issues for building the smart grid are discussed. The crucial elements of the smart grid and thei...

Artificial Neural Networks (ANNs) have demonstrated very interesting properties in adaptive identification schemes and control laws. In this work, they are employed for the on-line control strategy of an Active Power Filter (APF) in order to improve its performance. Indeed, neural-based approaches are synthesized to design adaptive and efficient harmonic identification schemes. The proposed neu...

This paper presents a new and simple control strategy to determine reference compensation currents, under balanced and unbalanced source voltages which using the voltage source inverter for harmonic filtering of a three phase shunt active filter. The proposed control system is able to compensate the harmonics and reactive power of the non linear loads. The proposed approach is compared with a r...

This paper proposes a super-twisting sliding mode control for multifunctional system that includes Photovoltaic (PV) connected to the grid through Active Power Filter (APF). The latter is implemented improve power quality in side, and injecting provided photovoltaic into grid. Sliding known as powerful with good performance transient steady-state conditions. In this work, Super-Twisting Mode Co...

A three-phase four-leg inverter-based shunt active power filter (APF) is proposed to compensate three-phase unbalanced currents under unbalanced load conditions in grid-connected operation in this study. Since a DC-link capacitor is required on the DC side of the APF to release or absorb the instantaneous apparent power, the regulation control of the DC-link voltage of the APF is important espe...

This paper discusses how an Active Power Filter (APF) can be utilized for system-wide harmonic mitigation in a microgrid with multiple sources of harmonic distortion located at different buses. A two-bus microgrid system with independent nonlinear loads at both buses is first investigated analytically, and it is demonstrated that it is possible to derive a harmonic current injection from the AP...

The three-phase Shunt hybrid APF topology for harmonic mitigation in low and medium voltage power distribution systems consists of a VSI based three phase shunt active filter (SAF) and tuned passive filters (TPF) connected in parallel with the load. This chapter discusses the modelling of shunt active filter and design of filter interfacing inductor, DC bus capacitor, tuned passive filters. It ...

This paper discusses the performance of different current control schemes used in three-phase four-wire shunt active power filters (APF). The control schemes are based on: Delta Modulation (DM), dead-beat control and PI regulator. The feasibility of the three control schemes have been tested with different waveform and the results are compared through the instantaneous error and the root mean s...

<span lang="EN-US">In this paper, a novel current controller for selective compensation with active power filter (APF) in microgrid (MG) is proposed. Power generation sinusoidal voltage and high quality essential the microgrid. Hence, control-based method shunt filters aiming to compensate harmonic Also, source converter used APF improve MG quality. Using suggested control can reduce tota...