Frequency-Adaptive Fractional-Order Repetitive Control of Shunt Active Power Filters

Zou, Zhixiang; Zhou, Keliang; Wang, Zheng; Cheng, Ming

doi:10.1109/tie.2014.2363442

Cited by 221 publications

(97 citation statements)

References 28 publications

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“…This will result in a severe performance degradation for tracking of periodic reference signal or rejecting of period disturbance signal [18], [19]. Therefore, it is necessary to design MRC with exact N m .…”

Section: A Fractional-order Multirate Rcmentioning

confidence: 99%

“…Addressing above issues, a finite impulse response (FIR) based fractional delay is proposed for CRC [16], parallel structure RC [11], and selective harmonic RC [17], which enables frequency adaptation to the reference signal variations. Lagrange-interpolation-based fractional delay based RC is applied in various applications, for instance, programmable AC power source [18], grid-connected power converter [13], and shunt active power filters [19]. And the scheme of Lagrange interpolation-based fractional delay is further improved with the Farrow structure to decrease computation load in [7].…”

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confidence: 99%

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Universal Fractional-Order Design of Linear Phase Lead Compensation Multirate Repetitive Control for PWM Inverters

Liu

Zhang

Zhou

2017

IEEE Trans. Ind. Electron.

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Abstract-Repetitive control (RC) with linear phase lead compensation provides a simple but very effective control solution for any periodic signal with a known period. Multirate repetitive control (MRC) with a downsampling rate can reduce the need of memory size and computational cost, and then leads to a more feasible design of the plug-in repetitive control systems in practical applications. However, with fixed sampling rate, both MRC and its linear phase lead compensator are sensitive to the ratio of the sampling frequency to the frequency of interested periodic signals: (1) MRC might fails to exactly compensate the periodic signal in the case of a fractional ratio; (2) linear phase lead compensation might fail to enable MRC to achieve satisfactory performance in the case of a low ratio. In this paper, a universal fractional-order design of linear phase lead compensation MRC is proposed to tackle periodic signals with high accuracy, fast dynamic response, good robustness, and cost-effective implementation regardless of the frequency ratio, which offers a unified framework for housing various RC schemes in extensive engineering application. An application example of programmable AC power supply is explored to comprehensively testify the effectiveness of the proposed control scheme.Index Terms-repetitive control, DC/AC inverter, multirate repetitive control, phase lead compensation, Lagrange interpolation polynomial, programmable AC power supply

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Section: A Fractional-order Multirate Rcmentioning

confidence: 99%

mentioning

confidence: 99%

Universal Fractional-Order Design of Linear Phase Lead Compensation Multirate Repetitive Control for PWM Inverters

Liu

Zhang

Zhou

2017

IEEE Trans. Ind. Electron.

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“…In order to improve the performance of alternating current control, proportional resonant (PR) control has been developed to achieve infinite gain and zero error tracking at the tuned frequency [35,36]. Repetitive control, derived from the internal model principle, makes it possible to accurately track the periodic signal and enhance the steady-state performance [37,38], but its dynamic response still needs to be improved.…”

Section: Active Control Technologymentioning

confidence: 99%

Overview of power quality analysis and control technology for the smart grid

Luo

et al. 2016

J. Mod. Power Syst. Clean Energy

106

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With the wide application of non-linear loads and the large-scale access of distributed energy generations based on power electronics equipments, power quality problems in the distribution network are increasingly serious with new characteristics. Further in-depth research is of great significance in theory and practice. This paper provides an overview of power quality analysis, compensators, and control technologies under the new situation of smart grid. It focuses on the topologies and control methods for power quality conditioners, especially new characteristics of power quality and applicable control technologies in microgrids and distributed power plants. Finally, trends and prospects of power quality control technology are introduced, which is important to achieve security and efficient operation of the smart grid.

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“…Therefore, the transfer function (17) can be approximated by a typical type-2 system. It can be obtained that: 2 …”

Section: Parameters Design Guidelinesmentioning

confidence: 99%

Performance Evaluations of Four MAF-Based PLL Algorithms for Grid-Synchronization of Three-Phase Grid-Connected PWM Inverters and DGs

Han¹,

Luo²,

Chen³

et al. 2016

Journal of Power Electronics

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The moving average filter (MAF) is widely utilized to improve the disturbance rejection capability of phase-locked loops (PLLs). This is of vital significance for the grid-integration and stable operation of power electronic converters to electric power systems. However, the open-loop bandwidth is drastically reduced after incorporating a MAF into the PLL structure, which makes the dynamic response sluggish. To overcome this shortcoming, some new techniques have recently been proposed to improve the transient response of MAF-based PLLs. In this paper, a comprehensive performance comparison of advanced MAFbased PLL algorithms is presented. This comparison includes HPLL, MPLC-PLL, QT1-PLL, and DMAF-PLL. Various disturbances, such as grid voltage sag, voltage flicker, harmonics distortion, phase-angle and frequency jumps, DC offsets and noise, are considered to experimentally test the dynamic performances of these PLL algorithms. Finally, an improved positive sequence extraction method for a HPLL under the frequency jumps scenario is presented to compensate for the steady-state error caused by non-frequency adaptive DSC, and a satisfactory performance has been achieved.

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Frequency-Adaptive Fractional-Order Repetitive Control of Shunt Active Power Filters

Cited by 221 publications

References 28 publications

Universal Fractional-Order Design of Linear Phase Lead Compensation Multirate Repetitive Control for PWM Inverters

Universal Fractional-Order Design of Linear Phase Lead Compensation Multirate Repetitive Control for PWM Inverters

Overview of power quality analysis and control technology for the smart grid

Performance Evaluations of Four MAF-Based PLL Algorithms for Grid-Synchronization of Three-Phase Grid-Connected PWM Inverters and DGs

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