Results 101 to 110 of about 35,622 (233)

Tunable wide–band second–order all–pass filter–based time delay cell using active inductor [PDF]

, 2018
Postprint (published ...
Aghazadeh, Seyed Rasoul, Alarcón Cot, Eduardo José, Martínez García, Herminio, Saberkari, Alireza   +3 more
core  

Active Power Filter DC Bus Voltage Piecewise Reaching Law Variable Structure Control

Journal of Applied Mathematics, 2014
The DC bus voltage stability control is one key technology to ensure that Active Power Filter (APF) operates stably. The external disturbances such as power grid and load fluctuation and the system parameters changing may affect the stability of APF DC ...
Baolian Liu, Zujun Ding, Huanyu Zhao, Defei Jin   +3 more
doaj   +1 more source

A Novel Strategy Based on Linear Active Disturbance Rejection Control for Harmonic Detection and Compensation in Low Voltage AC Microgrid

Energies, 2019
In an AC microgrid, harmonic distortion is mainly caused by power electronic equipment and nonlinear loads. In this paper, linear active disturbance rejection control (LADRC) is used to control the fundamental current at the point of common coupling (PCC)
Hui Li, Shuang Li, Junwei Lu, Yue Qu, Chenmu Guo   +4 more
doaj   +1 more source

Hybrid simulation: an active power filter case study

Ingeniería e Investigación, 2011
The hybrid simulation concept consisting of a combination of computer simulation and laboratory tests. This approach is a cost effective alternative to physically testing the whole system and allows better understanding of complex coupled systems.This ...
Y. A. Garcés, E. A. Cano-Plata, A. J. Ustariz-Farfan   +2 more
doaj  

Power Quality Improvement Using Unified Power Quality Conditioner (UPQC) [PDF]

, 2016
The advance use of power electronic devices introduces harmonics in the supply system which creates a problem in the quality of power delivered. Good Power Quality is very much important for our day to day use of appliances in both industrial and ...
Anand , Piyush
core  

Using special APF to improve harmonic rate of MRT power system

Journal of Low Frequency Noise, Vibration and Active Control
Most APFs use improved designs of active power filters of half-bridge and full-bridge circuits, their advantages and disadvantages are compared. International journals often use this filter circuit for small circuit boards.
Chien-Hsu Chen, Li-Wei Ko
doaj   +1 more source

Modified Modeling and System Stabilization of Shunt Active Power Filter Compensating Loads with μF Capacitance

Energies, 2019
The interactions between shunt active power filter (APF) and capacitance load tend to result in stability problems and resonance. The conventional model of a shunt APF is not precise enough to reflect this phenomenon. To address it, this paper proposes a
Yuqi Bing, Daozhuo Jiang, Yiqiao Liang, Chongxi Jiang, Tianxiang He, Lei Yang, Pengfei Hu   +6 more
doaj   +1 more source

A Modified Variable Power Angle Control for Unified Power Quality Conditioner in a Distorted Utility Source

Energies
The distorted supply voltage degrades the control performance of a unified power quality conditioner (UPQC). This problem causes incorrect calculations in the harmonic identification and reference signal generation processes.
Krittapas Chaiyaphun, Phonsit Santiprapan, Kongpol Areerak   +2 more
doaj   +1 more source

Peredaman Resonansi Harmonisa pada Sistem Kelistrikan Industri Menggunakan Filter Hybrid dengan Konduktansi Variable. [PDF]

, 2017
Harmonisa dalam suatu sistem kelistrikan industri dapat menyebabkan kerusakan pada peralatan listrik. Adanya harmonisa pada sistem tenaga listrik salah satunya disebabkan oleh peralatan elektronik semi konduktor yang mempunyai impedansi tidak linier ...
Penangsang, O. (Ontoseno), Riawan, D. C. (Dedet), Sjaferial, A. (Adi)   +2 more
core   +1 more source

Design and Performance Evaluation of a Flatness-Based Controller for a Three-Phase Three-Level NPC Shunt Active Power Filter

Designs
The widespread adoption of nonlinear loads in industry has introduced significant power quality issues in electric power distribution grids. The integration of these nonlinear loads has led to the proliferation of serious power quality problems such as ...
Oumaima Mikram, Abdelmajid Abouloifa, Ibtissam Lachkar, Chaouqi Aouadi, Juan Wang   +4 more
doaj   +1 more source