Laboratory implementation of a hybrid series active power filter system part II: Series active filter designing

2014 ◽  
Author(s):  
H. Djeghloud ◽  
M. Larakeb ◽  
A. Bentounsi ◽  
Y. Terriche ◽  
D. Kerdoun
Keyword(s):  
Active Power Filter ◽  
Active Power ◽  
Active Filter ◽  
Filter System ◽  
Power Filter ◽  
System Part

scholarly journals A PLL Scheme for Synchronization with Grid Voltage Phasor in Active Power Filter Systems

2010 ◽  
Vol 27 (1) ◽  
pp. 134-137 ◽  
Author(s):  
Oskars Krievs ◽  
Ingars Steiks ◽  
Leonids Ribickis
Keyword(s):  
Active Power Filter ◽  
Active Power ◽  
Active Filter ◽  
Positive Sequence ◽  
Voltage Source ◽  
Grid Voltage ◽  
Active Power Filters ◽  
Voltage Source Inverters ◽  
Power Filter ◽  
Power Filters

A PLL Scheme for Synchronization with Grid Voltage Phasor in Active Power Filter SystemsVoltage source inverters connected to the grid in applications such as active power filters require synchronization with the grid voltage. Since in practice the grid voltage can be unbalanced and distorted, but the operation of the whole active filter control system is strongly dependant on precise estimation of grid voltage phase, the fundamental positive sequence phasor of the grid voltage has to be extracted. In this paper a system for smooth estimation of the position of the voltage phasor at the point of common coupling of a parallel active filter system is presented using a sinusoidal signal integrator and a simple software PLL. The performance of the proposed system is verified by simulation and experimental results. The proposed PLL scheme can also be used in other vector oriented control systems.

Study on Light HVDC Converter and Harmonic Suppression of the Active Filter

2014 ◽  
Vol 977 ◽  
pp. 391-394
Author(s):  
Si Qi Lv
Keyword(s):  
Active Power Filter ◽  
Vital Role ◽  
Active Power ◽  
Active Filter ◽  
Main Function ◽  
Harmonic Suppression ◽  
Key Technology ◽  
Power Filter ◽  
Hvdc Light ◽  
Great Progress

The key equipment of Light HVDC Technology is the converter and the filter. The main function of the converter is AC / DC conversion, which plays a vital role in converter station. The filter is also an important tool for harmonic suppression. Therefore, in this paper, the HVDC converter and the harmonic suppression are studied. Our paper discussed the advanced converter VSC which is currently being put into operation, its key technology--the MMC topology and the connection mode of VSC. Meanwhile, the production, effect and suppression of the harmonic are analyzed. Compared active power filter to the passive filter, finally, we chose the active filter as the research object. Successful experience of the HVDC Light project which has been put into operation or will be put into use showed that, the technology is in great progress and will be widely used.

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