Journal ArticleDOI
A closed-loop selective harmonic compensation for active filters
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TLDR
In this paper, a control algorithm for parallel active power filters, based on current-controlled pulsewidth-modulated converters, which allows precise compensation of selected harmonic currents produced by distorting loads is proposed.Abstract:
This paper proposes a control algorithm for parallel active power filters, based on current-controlled pulsewidth-modulated converters, which allows precise compensation of selected harmonic currents produced by distorting loads. The approach is based on the measurement of line currents and performs the compensation of the selected harmonics using closed-loop synchronous frame controllers. Thanks to the closed-loop operation, full compensation of the desired harmonics is achieved even in the presence of a significant delay in the current control. Thanks to the selective approach, active filter interactions with possible dynamic components of the load are minimized. Moreover, the complexity of the synchronous frame controllers is overcome using equivalent stationary frame controllers. Experimental results confirm the theoretical expectations.read more
Citations
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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
Decoupled Double Synchronous Reference Frame PLL for Power Converters Control
TL;DR: In this article, a decoupled double synchronous reference frame phase-locked loop (DDSRF-PLL) was proposed to detect the fundamental-frequency positive-sequence component of the utility voltage under unbalanced and distorted conditions.
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
A Stationary Reference Frame Grid Synchronization System for Three-Phase Grid-Connected Power Converters Under Adverse Grid Conditions
Pedro Rodriguez,Alvaro Luna,R.S. Munoz-Aguilar,Ion Etxeberria-Otadui,Remus Teodorescu,Frede Blaabjerg +5 more
TL;DR: A new grid synchronization method for three-phase three-wire networks, namely dual second-order generalized integrator (SOGI) frequency-locked loop, based on two adaptive filters, is presented, able to perform an excellent estimation of the instantaneous symmetrical components of the grid voltage under unbalanced and distorted grid conditions.
Journal ArticleDOI
High Performance Current Controller for Selective Harmonic Compensation in Active Power Filters
TL;DR: In this article, a new current control scheme for selective harmonic compensation is proposed for shunt active power filters, which employs an array of resonant current controllers, one for the fundamental, and one for each harmonic, implemented in fundamental reference frame in order to reduce the overall computational effort.
References
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Journal ArticleDOI
New trends in active filters for power conditioning
TL;DR: In this article, the authors present the present status of active filters based on state-of-the-art power electronics technology, and their future prospects and directions toward the 21st Century, including the personal views and expectations of the author.
Book ChapterDOI
Computer Controlled Systems
TL;DR: The degree of success of a computer control application depends mainly on the effectiveness of the algorithm, which is generally designed from plant specifications and desired performance characteristics.
Journal ArticleDOI
Stationary frame current regulation of PWM inverters with zero steady-state error
D.N. Zmood,Donald Grahame Holmes +1 more
TL;DR: In this article, the P+Resonant regulator is proposed, which achieves the same transient and steady-state performance as a synchronous frame PI regulator and is applicable to both single-phase and three-phase inverters.
Journal ArticleDOI
Control Strategy of Active Power Filters Using Multiple Voltage-Source PWM Converters
TL;DR: In this article, an active power filter with quadruple voltage-source PWM converters was developed, of which the power circuit consists of quadruple-VRS converters.
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