Results 41 to 50 of about 8,165,669 (143)

Fuzzy Moving Surface Second‐Order Super Twisting Sliding Mode Control for Direct Power Control of Shunt Active Power Filter

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
The present paper proposes Fuzzy Moving Surface Second‐Order Super Twisting Sliding Mode Control (FMS‐SO‐ST‐SMC) for Direct Power Control (DPC) of a Shunt Active Power Filter (SAPF). This method offers flexibility and high robustness against external disturbances with low sensitivity to changes in system parameters that are effectively improved with ...
Behnam Amini, Hasan Rastegar, Mohammad Pichan   +2 more
wiley   +1 more source

Robust control of adaptive power quality compensator in Multi-Microgrids for power quality enhancement using puzzle optimization algorithm

Ain Shams Engineering Journal, 2023
The primary purpose of this paper is to design a novel multi-microgrid connection that uses power compensation methods to improve voltage profiles and reduce harmonic distortions using specific compensation devices in low inertia systems.
Hatem F. Sindi, Sultan Alghamdi, Muhyaddin Rawa, Ahmed I. Omar, Ahmed Hussain Elmetwaly   +4 more
doaj   +1 more source

Power Quality Enhancement in Grid‐Connected Photovoltaic Systems Using Hybrid Harbor Seal Whiskers Optimization and Interpretable Generalized Additive Neural Networks

International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
The integration of solar energy into modern power grids supports sustainability and energy efficiency but also introduces power quality (PQ) challenges such as harmonic distortion, voltage sag, swell, and fluctuations. In order to reduce PQ problems in renewable energy systems (RESs), this research proposes a novel hybrid control strategy that combines
M. Hariprabhu, C. Kumar, T. Dharma Raj, Sourav Barua, Mario Ponce-Silva   +4 more
wiley   +1 more source

Current Control of Three‐Phase Inverter Using a Data‐Driven Model‐Free Adaptive Controller for Power Quality Improvement

International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
This paper introduces a data‐driven model‐free adaptive controller (DDMFAC) as a powerful, practical, and suitable alternative to improve the limitations, challenges, and inherent problems of conventional model–based methods. The proposed method, using input–output data processing independent of the mathematical and systematic model, acts as an ...
Behnam Amini, Ahmad Hajipour, Reza Roshanfekr, Mario Ponce-Silva   +3 more
wiley   +1 more source

A predictive control with flying capacitor balancing of a multicell active power filter [PDF]

, 2008
Unlike traditional inverters, multicell inverters have the following advantages: lower switching frequency, high number of output levels, and less voltage constraints on the insulated-gate bipolar transistors.
Llor, Ana-Maria, Fadel, Maurice, Defaÿ, François   +2 more
core   +1 more source

Adaptive Frequency-Based Reference Compensation Current Control Strategy of Shunt Active Power Filter for Unbalanced Nonlinear Loads

Energies, 2019
The shunt active power filter (SAPF) is an effective means for the modification of power quality. However, the compensation performance of SAPF would be deteriorated when the unbalanced nonlinear loads are present in the power system.
Cheng-I Chen, Chien-Kai Lan, Yeong-Chin Chen, Chung-Hsien Chen   +3 more
doaj   +1 more source

Power quality enhancement of distribution grid using a photovoltaic based hybrid active power filter with three level converter

Energy Reports, 2023
This paper employs a second-order sequence filter (SOSF) and proportional–integral (PI) controller to control a hybrid active power filter with photovoltaic (HAPF-PV) through three-level neutral point clamped (NPC) converters.
Ehsan Akbari, Abbas Zare Ghaleh Seyyedi
doaj   +1 more source

A Shadow‐Mode Digital Twin Shunt Active Power Filter Control Based on Meta‐Optimized Twin‐Delayed Deep Deterministic Policy Gradient Reinforcement Learning

Journal of Engineering, Volume 2026, Issue 1, 2026.
Most learning‐based shunt active power filter (SAPF) controllers still rely on fixed neural architectures, single‐metric rewards, and slow training cycles that limit deployment. This paper presents a digital twin–enabling (DT‐enabling) control framework for an SAPF that couples meta‐optimized twin‐delayed deep deterministic policy gradient ...
Elyas Smaida, Michael Juma Saulo, Abdellah Kouzou, Mary Ahuna, Ali Teta, Hosameldin Eltayeb Adam, Shikha Binwal   +6 more
wiley   +1 more source

A Wavelet-Based Unified Power Quality Conditioner to Eliminate Wind Turbine Non-Ideality Consequences on Grid-Connected Photovoltaic Systems

Energies, 2016
The integration of renewable power sources with power grids presents many challenges, such as synchronization with the grid, power quality problems and so on.
Bijan Rahmani, Weixing Li, Guihua Liu
doaj   +1 more source

Real‐Time Implementation of Unknown Input Observer‐Based State and Unknown Disturbance Estimation for Series Active Filters

International Journal of Circuit Theory and Applications, Volume 53, Issue 7, Page 3970-3992, July 2025.
For the series active filter (SAF), a combined controller and observer scheme is proposed. Two controllers—state feedback (SFB) and linear quadratic regulator (LQR)—along with state observers, including the Luenberger observer (LO), proportional–integral observer (PIO), and unknown input observer (UIO), have been designed.
Nagulapati Kiran, I. E. S. Naidu
wiley   +1 more source