Results 251 to 260 of about 5,405,430 (295)

Harmonic resonant filters for power electronics

The European Physical Journal Applied Physics, 2007
The object of this work is to report a passive filter structure dedicated for power applications. The structure is based on a series combination of elementary notch filters resonating at harmonic frequencies of a base frequency (switching frequency of a converter). A calculation of values of the components used for a given performance is presented.
Daveau, G., Joubert, C., Forest, F.
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Switching of power harmonic filters

Proceedings of 1994 IEEE Industry Applications Society Annual Meeting, 2002
Power harmonic filters are installed at the AC input terminals of rectifiers, motor drives, UPS, and other nonlinear loads to reduce the distortion of the terminal voltage at the point of connection. The design guide for these filters, such as IEEE Std. 519, assumes a fixed load condition, and does not focus on switching of the filters.
A. Kusko, N.K. Medora
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A novel harmonic power filter

PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference, 2003
A novel harmonic power filter system consisting of passive LC filters and voltage source pulsewidth-modulated (PWM) converters is described. This filter system has the merits of both conventional passive LC filters and conventional active power filters. The operating principle and a control scheme for the system are described.
F.Z. Peng, H. Akagi, A. Nabae
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Harmonic filtering in power applications

Conference Record. Industrial and Commercial Power Systems Technical Conference, 2003
One suggested solution to line-current harmonics injected by rectifying power converters is the placement of series-resonant filters across the line supply feeders. For effective filtering, the filter impedance level must be comparable to the source impedance.
L.J. Giacoletto, G.L. Park
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Harmonic Computation Technique Suitable for Active Power Filters

IEEE Transactions on Industrial Electronics, 2007
The design and implementation of a novel method for reference generation that is applied to active power Alters (APFs) is introduced in this paper. The proposed reference generation performs harmonic detection based on the Goertzel algorithm. The method computes both the module I1 and the phase phi of the signal, with minimum computation overhead. This
Sergio Alejandro Gonzalez, Rogelio Garcia Retegui, Mario Benedetti   +2 more
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Active Power Filter Commitment for Harmonic Compensation in Microgrids

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019
Harmonic distortions are going to be more important in the near future due to the growing utilization of power electronic (PE) based devices. The PE devices usually exhibit a nonlinear behavior leading to inject harmonics to the network. Meanwhile, widespread employment of distributed energy resources (DER) with their PE-based power conditioning units,
Marini, Abbas, Piegari, Luigi, Mortazavi, Seyed Saeedallah, Ghazizadeh, Mohammad-Sadegh   +3 more
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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
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Frequency Shifting And Filtering Algorithm for Power System Harmonic Estimation

2017 IEEE International Workshop on Applied Measurements for Power Systems (AMPS), 2017
Spectral leakage and picket fence effect in Fourier transform will affect the accuracy of harmonic analysis under asynchronous sampling. To overcome this defect, a novel algorithm for power system harmonic analysis called Frequency Shifting and Filtering (FSF) algorithm is proposed in this paper. In this method, a reference signal is given to shift the
Zhikang Shuai, Junhao Zhang, Lu Tang 0002, Zhaosheng Teng, He Wen 0003   +4 more
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Trends in power factor correction with harmonic filtering

Industry Applications Society 38th Annual Petroleum and Chemical Industry Conference, 1993
The author presents an overview of the harmonics problem and examines how utilities are beginning to interpret and apply harmonics standards. He discusses IEEE Standard 519-1981 and addresses the concern that some utility standards go well beyond the IEEE guidelines to the point of being unreasonable. >
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Active power filters for harmonics mitigation

This technical note presents the principles and control strategies of shunt active power filters (APF) designed for harmonic current mitigation in electrical grids. It discusses the identification of harmonic components generated by non-linear loads, reference current generation methods, and the design of high-bandwidth current controllers. Finally, it
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