Comparison Analysis of Resonant Controllers for Current Regulation of Selective Active Power Filter with Mixed Current Reference

Hao, Yi; Zhuo, Fang; Liu, Yu; Zhang, Yanjun; Zhan, Wenda

doi:10.6113/jpe.2013.13.5.861

Cited by 11 publications

(4 citation statements)

References 32 publications

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“…Consequently, the control method is effective, but its structure is complex. In [19][20][21][22][23][24][25][26][27][28], proportional resonant (PR) controllers in a stationary frame were presented. Compared with PI controllers, the complexity of PR controllers is reduced considerably, combined with its good performance.…”

Section: Introductionmentioning

confidence: 99%

A Multifunctional Dynamic Voltage Restorer for Power Quality Improvement

2018

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Power quality is a major concern in electrical power systems. The power quality disturbances such as sags, swells, harmonic distortion and other interruptions have an impact on the electrical devices and machines and in severe cases can cause serious damages. Therefore it is necessary to recognize and compensate all types of disturbances at an earliest time to ensure normal and efficient operation of the power system. To solve these problems, many types of power devices are used. At the present time, one of those devices, Dynamic Voltage Restorer (DVR) is the most efficient and effective device used in power distribution systems. In this paper, design and modeling of a new structure and a new control method of multifunctional DVRs for voltage quality correction are presented. The new control method was built in the stationary frame by combining Proportional Resonant controllers and Sequence-Decouple Resonant controllers. The performance of the device and this method under different conditions such as voltage swell, voltage sag due to symmetrical and unsymmetrical short circuit, starting of motors, and voltage distortion are described. Simulation result show the superior capability of the proposed DVR to improve power quality under different operating conditions and the effectiveness of the proposed method. The proposed new DVR controller is able to detect the voltage disturbances and control the converter to inject appropriate voltages independently for each phase and compensate to load voltage through three single-phase transformers.

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Section: Introductionmentioning

confidence: 99%

A Multifunctional Dynamic Voltage Restorer for Power Quality Improvement

2018

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“…Thus, the impedance of looking into the whole system should be resistive. The control goal is to realize the following relationship: (21) Combining Eqs. (19), (20), and (21) yields (22) Reshaping Eq.…”

Section: Appendix a One-cycle Control Scheme Of Three-phase Four-wirmentioning

confidence: 99%

“…The bandwidth of the current loop has to be sufficiently wide. In the literature, various current controllers have been developed, such as proportional-integral (PI) control [17], [18], hysteresis control [19], [20], proportional-resonant (PR) control [21], [22], and vector PI (VPI) control [23], [24]. The bandwidth of PI control is limited, which is making it unsuitable for LCs.…”

Section: Introductionmentioning

confidence: 99%

A Load Compensator Based on One-Cycle Control with Plug-In Repetitive Control

Hu¹,

Sun²,

Ma³

et al. 2015

Journal of Power Electronics

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This study proposes a novel one-cycle control scheme with a plug-in repetitive controller for load compensator. The novelty of this scheme lies in the combination of high dynamics and the simplicity of a one-cycle controller and good steady-state harmonic suppression ability of the repetitive controller. In addition, the proposed scheme can reduce the effect of the harmonics in phase voltage for the existence of the repetitive controller. Finally, experimental results on a three-phase, four-wire, three-level load compensator are reported to validate the effectiveness of the proposed control scheme.

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“…However, for ac references, the PI controller would lead to steady-state error due to the finite gain at the selected frequency [18], [19]. The proportional resonant (PR) controller can provide infinite gain at the selected resonant frequency to suppress the effect of the unwanted harmonics, thus ensuring zero steady-state error when tracking an ac reference at the selected frequency [20][21][22]. On the other hand, by applying PI controller in dq synchronous frame can ensure zero steady-state error, since the ac signal is transformed into dc signal, thus infinite gain is achieved by the PI controller at the dc component [23], [24].…”

Section: Introductionmentioning

confidence: 99%

Stationary Frame Current Control Evaluations for Three-Phase Grid-Connected Inverters with PVR-based Active Damped LCL Filters

Han¹,

Shen²,

Guerrero³

2016

Journal of Power Electronics

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Grid-connected inverters (GCIs) with LCL output filter have the ability of attenuating high-frequency (HF) switching ripples. However, by using only grid-current control, the system is prone to resonances if it is not properly damped, and the current distortion would be amplified significantly under highly distorted grid conditions. In this paper, a synchronous reference frame equivalent proportional-integral (SRF-EPI) controller in αβ stationary frame using the parallel virtual resistance-based active damping (PVR -AD) strategy for grid-interfaced distributed generation (DG) systems to suppress the LCL resonance is proposed. Although both proportional-resonant (PR) controller in αβ stationary frame and PI controller in dq synchronous frame achieve zero steady-state error, the amplitude-and phase-frequency characteristics differ greatly from each other except for the reference tracking at fundamental frequency. Therefore, an accurate SRF-EPI controller in αβ stationary frame is established to achieve precise tracking accuracy. Moreover, the robustness, harmonic rejection capabilities, and influence of control delay are investigated by the Nyquist stability criterion when the PVR-based AD method is adopted. Furthermore, the grid voltage feed-forward and multiple PR controllers are integrated in the current loop to mitigate the current distortion introduced by the grid background distortion. Besides, the parameters design guidelines are presented to show the feasibility and effectiveness of the proposed strategy. Finally, simulation and experimental results are provided to validate the feasibility of the proposed control approach.

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Comparison Analysis of Resonant Controllers for Current Regulation of Selective Active Power Filter with Mixed Current Reference

Cited by 11 publications

References 32 publications

A Multifunctional Dynamic Voltage Restorer for Power Quality Improvement

A Multifunctional Dynamic Voltage Restorer for Power Quality Improvement

A Load Compensator Based on One-Cycle Control with Plug-In Repetitive Control

Stationary Frame Current Control Evaluations for Three-Phase Grid-Connected Inverters with PVR-based Active Damped LCL Filters

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