Results 261 to 270 of about 96,935 (306)

Computer-aided design of power harmonic filters

Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242), 2002
Power harmonic filters for rectifiers, motor drives and UPS are usually designed by characterizing currents and voltages by their harmonic components. Usually, no attempt is made to determine the effect of switching of the filters, or of the system operation during a fault in the filter. A superior design method is to use modeling tools to characterize
N.K. Medora, A. Kusko
openaire   +1 more source

Parallel operation of passive power filter and hybrid power filter for harmonic suppression

IEE Proceedings - Generation, Transmission and Distribution, 2001
Harmonic pollution has been serious in recent years. Passive filters have been used to suppress harmonic current conventionally. However, passive power filters have the problem of resonance. To solve the resonance problem, active power filters and hybrid power filters were developed.
H.-L. Jou, J.-C. Wu, K.-D. Wu
openaire   +1 more source

Absorptive Filters for Microwave Harmonic Power

Proceedings of the IRE, 1959
Utilizing the cutoff properties of certain lossy periodic waveguide structures, low reflection absorptive filters for harmonic power at microwave frequencies have been obtained. Various approaches to specific absorptive filters are discussed, and the experimental results presented demonstrate the validity of the concepts developed. Insertion loss of up
openaire   +1 more source

Harmonic Intelligent Control with Active Power Filter

Proceedings of the 41st International Universities Power Engineering Conference, 2006
This paper presents the procedures required to determine the locations and sizes of multiple-Active Power Filters (APFs) to reduce harmonic distortion in a power system with harmonic sources. The objective function is to minimize the APFs injection currents while satisfying harmonic voltages, total harmonic voltage distortions within IEEE-519 ...
openaire   +1 more source

A discrete frequency tuning active filter for power system harmonics

2008 IEEE Power Electronics Specialists Conference, 2008
Severe voltage distortion due to power system harmonic resonance has been reported in recent years. The termination installation active filter was presented to resolve this problem. It operates as similar conductance for all harmonic frequencies whether in a fixed conductance command or in an automatic gain adjustment control.
null Tzung-Lin Lee, null Jian-Cheng Li, null Po-Tai Cheng   +2 more
openaire   +1 more source

Adaptive Kalman filter for harmonic detection in active power filter application

2015 IEEE Electrical Power and Energy Conference (EPEC), 2015
This paper deals with the harmonic detection which is decoupled from the operation of active power filter. Kalman filter for harmonic detection based on a stochastic state-space model is proposed. However, it is a challenging task in large time varying system to know the process and noise covariance matrices Q and R.
Hengyi Wang, Steven Liu
openaire   +1 more source

Passive harmonic filters [for electrical power systems]

2017
The current chapter presents the harmonic passive filters commonly used in the industry, their classifications, configurations, advantages and disadvantages, theoretical as well as practical design considerations and the data required for their installation. The goal of this chapter is to present the frequency characteristics variation and consequently
Chamberlin Stephane Mboving, Zbigniew Hanzelka   +1 more
openaire   +1 more source

A Novel Active Power Filter for Harmonic Suppression

IEEE Transactions on Power Delivery, 2005
In this paper, a novel active power filter is proposed and implemented by using a voltage-source power converter with a series connected inductor and capacitor set. The power converter is controlled to generate a compensating voltage that is converted into a compensating current via the series connected inductor and capacitor set.
H.-L. Jou, J.-C. Wu, Y.-J. Chang, Y.-T. Feng   +3 more
openaire   +1 more source

Power system harmonic analysis using the Kalman filter

2003 IEEE Power Engineering Society General Meeting (IEEE Cat. No.03CH37491), 2004
This paper explores the practical application of the Kalman filter to the analysis of harmonic levels in power systems. The merits and limitations of different possible implementations are investigated and the effect of fundamental frequency variation is examined. The tuning of the Kalman filter for desired dynamic response is discussed and an adaptive
K. Kennedy, G. Lightbody, R. Yacamini
openaire   +1 more source

Ensemble-Kalman-Filter-Based Power System Harmonic Estimation

IEEE Transactions on Instrumentation and Measurement, 2012
The growing use of power-electronics-based components and nonlinear loads is increasing the presence of harmonics in power system signals. In this scenario, proper estimation of such harmonics is intended to maintain power quality and improved operation of the system.
Pravat Kumar Ray, Bidyadhar Subudhi
openaire   +1 more source