An Active Damping Method Using Inductor-Current Feedback Control for High-Power PWM Current-Source Rectifier

Liu, Fangrui; Wu, Bin; Zargari, Navid R.; Pande, Manish

doi:10.1109/tpel.2011.2111423

Cited by 76 publications

(20 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In practice, there are also currentsource inverters [11][12][13]. An interesting active damping solution was presented in [14]. However, while the above methods are insightful for stability analysis, the impact of phase-locked loop (PLL) dynamics on the stability of gridconnected inverters has been neglected.…”

Section: Introductionmentioning

confidence: 99%

Impact of phase-locked loop on stability of active damped LCL-filter-based grid-connected inverters with capacitor voltage feedback

Guo

Liu

Wang

2017

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

Active damped LCL-filter-based inverters have been widely used for grid-connected distributed generation (DG) systems. In weak grids, however, the phase-locked loop (PLL) dynamics may detrimentally affect the stability of grid-connected inverters due to interaction between the PLL and the controller. In order to solve the problem, the impact of PLL dynamics on small-signal stability is investigated for the active damped LCL-filtered grid-connected inverters with capacitor voltage feedback. The system closed-loop transfer function is established based on the Norton equivalent model by taking the PLL dynamics into account. Using an established model, the system stability boundary is identified from the viewpoint of PLL bandwidth and current regulator gain. The accuracy of the ranges of stability for the PLL bandwidth and current regulator gain is verified by both simulation and experimental results.

show abstract

Section: Introductionmentioning

confidence: 99%

Impact of phase-locked loop on stability of active damped LCL-filter-based grid-connected inverters with capacitor voltage feedback

Guo

Liu

Wang

2017

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

show abstract

“…However, when K v is too large, the rectifier system may become unstable. Furthermore: the selection of K v is constrained by the dc-link current and modulation index [22]. Ultimately, according to …”

Section: B Active Damping Controlmentioning

confidence: 99%

“…In [21], the authors use capacitor-voltage feedback to mitigate the resonance in the three-phase CSR. Meanwhile, the derivative feedback control of the inductor current is adopted to damp the input filter resonance in [22]. However, like [20], these control structures are based on dc current control in one stage without inner ac current controllers.…”

Section: Introductionmentioning

confidence: 99%

A New Control Strategy for a Three-Phase PWM Current-Source Rectifier in the Stationary Frame

Guo¹,

He-ping²,

Zhang³

2015

Journal of Power Electronics

View full text Add to dashboard Cite

This paper presents a novel power control strategy for PWM current-source rectifiers (CSRs) in the stationary frame based on the instantaneous power theory. In the proposed control strategy, a virtual resistance based on the capacitor voltage feedback is used to realize the active damping. In addition, the proportional resonant (PR) controller under the two-phase stationary coordinate is designed to track the ac reference current and to avoid the strong coupling brought about by the coordinate transformation. The limitations on improving steady-state performance of the PR controller is investigated and mitigated using a cascaded lead-lag compensator. In the z-domain, a straightforward procedure is developed to analyze and design the control-loop with the help of MATLAB/SISO software tools. In addition, robustness against parameter variations is analyzed. Finally, simulation and experimental results verify the proposed control scheme and design method.

show abstract

“…In [6]- [9], the authors used capacitor voltages as feedback to determine the harmonic current and successfully mitigate resonance in three-phase current source rectifiers (CSRs). In [10], the feedback signal changed to inductor current to remove additional capacitor voltage sensors. The classical space vector modulation (SVM) strategy controls the CSRs in most of these schemes.…”

Section: Introductionmentioning

confidence: 99%

One-Cycle Control Strategy with Active Damping for AC-DC Matrix Converter

Liu¹,

Zhang²,

Hou³

2014

Journal of Power Electronics

View full text Add to dashboard Cite

This study presents an input filter resonance mitigation method for an AC-DC matrix converter. This method combines the advantages of the one-cycle control strategy and the active damping technique. Unnecessary sensors are removed, and system cost is reduced by employing the grid-side input currents as feedback to damp out LC resonance. A model that includes the proposed method and the input filter is established with consideration of the delay caused by the actual controller. A zero-pole map is employed to analyze model stability and to investigate virtual resistor parameter design principles. Based on a double closed-loop control scheme, the one-cycle control strategy does not require any complex modulation index control. Thus, this strategy can be more easily implemented than traditional space vector-based methods. Experimental results demonstrate the veracity of theoretical analysis and the feasibility of the proposed approach.

show abstract

An Active Damping Method Using Inductor-Current Feedback Control for High-Power PWM Current-Source Rectifier

Cited by 76 publications

References 19 publications

Impact of phase-locked loop on stability of active damped LCL-filter-based grid-connected inverters with capacitor voltage feedback

Impact of phase-locked loop on stability of active damped LCL-filter-based grid-connected inverters with capacitor voltage feedback

A New Control Strategy for a Three-Phase PWM Current-Source Rectifier in the Stationary Frame

One-Cycle Control Strategy with Active Damping for AC-DC Matrix Converter

Contact Info

Product

Resources

About