High Order Voltage and Current Harmonic Mitigation Using the Modular Multilevel Converter STATCOM
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TLDR
This paper investigates the use of the multilevel modular converter (MMC) for harmonics mitigation due to its high bandwidth compared with conventional converters and proves the capability of the MMC to mitigate harmonics up to the thirteenth order, while maintaining a low effective switching frequency and thus, low switching losses.Abstract:
Due to the increase of power electronic-based loads, the maintenance of high power quality poses a challenge in modern power systems. To limit the total harmonic distortion in the line voltage and currents at the point of the common coupling (PCC), active power filters are commonly employed. This paper investigates the use of the multilevel modular converter (MMC) for harmonics mitigation due to its high bandwidth compared with conventional converters. A selective harmonics detection method and a harmonics controller are implemented, while the output current controller of the MMC is tuned to selectively inject the necessary harmonic currents. Unlike previous studies, focus is laid on the experimental verification of the active filtering capability of the MMC. For this reason an MMC-based double-star STATCOM is developed and tested for two representative case studies, i.e., for grid currents and PCC voltage harmonics. The results verify the capability of the MMC to mitigate harmonics up to the thirteenth order, while maintaining a low effective switching frequency and thus, low switching losses.read more
Citations
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References
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Book
Grid Converters for Photovoltaic and Wind Power Systems
TL;DR: In this article, the authors present an overview of the Grid Converter and its application in photovoltaic (PV) power converters, including the following: 1.1 Introduction. 2.3 Inverter Structures Derived from H-Bridge Topology. 3.4 Power Quality. 4.5 Adaptive Filtering.
Journal ArticleDOI
Proportional-resonant controllers and filters for grid-connected voltage-source converters
TL;DR: The proportional-resonant (PR) controllers and filters, and their suitability for current/voltage control of grid-connected converters, are described in this article.
Journal ArticleDOI
Multiple harmonics control for three-phase grid converter systems with the use of PI-RES current controller in a rotating frame
TL;DR: In this article, a hybrid system consisting of a proportional integral (PI) controller plus a generic hth harmonic resonant controller implemented in a frame rotating at the n th harmonic frequency is discussed in detail.
Journal ArticleDOI
Detection is key - Harmonic detection methods for active power filter applications
TL;DR: In this article, a survey of the commonly used methods for harmonic detection in active power filters (APFs) is presented, and a simulation setup that decouples the harmonic detection method from the active filter model and its controllers is proposed.
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