This paper deals with power quality problems encountered in weak AC microgrids and solutions for mitigation. A power electronic converter can be used as an effective power quality conditioner to compensate non-idealities in currents drawn from the grid. A power quality conditioner consisting of three power converters connected to a common DC link is analysed. One of these converters acts as an active power filter for removing unwanted harmonics in grid currents feeding a non-linear load. The other two converters instead remove the harmonics from the voltage at the terminals of a sensitive load. The control of the shunt converter is designed to be fast enough for power quality servicing but also has a fast disturbance rejection capability. Simulation and experimental results validating the concept are provided along with obtained total harmonic distortion improvements.

High dynamic performance power quality conditioner for AC microgrids / Jarwar, Asif Raza; Soomro, Amir Mahmood; Memon, Zubair Ahmed; Odhano, Shafiq Ahmed; Uqaili, Muhammad Aslam; Larik, Abdul Sattar. - In: IET POWER ELECTRONICS. - ISSN 1755-4535. - STAMPA. - 12:3(2019), pp. 550-556. [10.1049/iet-pel.2018.5264]

High dynamic performance power quality conditioner for AC microgrids

Odhano, Shafiq Ahmed;
2019

Abstract

This paper deals with power quality problems encountered in weak AC microgrids and solutions for mitigation. A power electronic converter can be used as an effective power quality conditioner to compensate non-idealities in currents drawn from the grid. A power quality conditioner consisting of three power converters connected to a common DC link is analysed. One of these converters acts as an active power filter for removing unwanted harmonics in grid currents feeding a non-linear load. The other two converters instead remove the harmonics from the voltage at the terminals of a sensitive load. The control of the shunt converter is designed to be fast enough for power quality servicing but also has a fast disturbance rejection capability. Simulation and experimental results validating the concept are provided along with obtained total harmonic distortion improvements.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2729258
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