Ruan Xinbo grid-connected inverter

Control Techniques for LCL-Type Grid

The control challenges of LCL-type grid-connected inverter arise from the resonance problem. At the resonance frequency, the LCL filter resonance causes a sharp phase step down of −180° with a

An improved method of phase-locked loop grid-connected inverter

Because the grid synchronization link will affect the characteristics of the system at low frequency. Specifically, the low-frequency output impedance of the grid-connected inverter will be reflected by the PLL [3], [4], [5],Under significant changes in the grid impedance, the inverter has a low harmonic or instability close to the PLL bandwidth (generally within 200 to 700 Hz).

Full-Feedforward Schemes of Grid Voltages for a Three

Resonance related to the LCL-filter grid-connected inverter (GCI) is one of the most challenging issues in power electronics. Active damping is a widely used methodology to damp the resonance

Xinbo Ruan | IEEE Xplore Author Details

Biography Xinbo Ruan (Fellow, IEEE) received the B.S. and Ph.D. degrees in electrical engineering from the Nanjing University of Aeronautics and Astronautics (NUAA), Nanjing, China, in 1991 and 1996, respectively.

Impedance Shaping of the Grid-Connected Inverter with LCL Filter

The current-controlled grid-connected inverter with LCL filter is widely used in the distributed generation system (DGS), due to its fast dynamic response and better power quality features.

Optimized Controller Design for $LCL$ -Type Grid-Connected Inverter

Xinbo Ruan. Xinbo Ruan. This person is not on ResearchGate, or hasn''t claimed this research yet. the digitally controlled LCL-type grid-connected inverter can be hardly stable no matter how

Aalborg Universitet A Highly Robust Single-Loop Current

A Highly Robust Single-Loop Current Control Scheme for Grid-Connected Inverter with an Improved LCCL Filter Configuration Pan, Donghua; Ruan, Xinbo; Wang, Xiongfei; Blaabjerg, Frede; Wang, Xuehua; Zhou, Qingfeng Published in: IEEE Transactions on Power Electronics DOI (link to publication from Publisher): 10.1109/TPEL.2017.2783301 Publication

Step-by-Step Controller Design for LCL-Type Grid

Grid-Connected Inverter with Capacitor–Current-Feedback Active-Damping Chenlei Bao, Xinbo Ruan, Senior Member, IEEE, Xuehua Wang, X. Ruan is with the State Key Laboratory of Advanced

Xinbo Ruan | IEEE Xplore Author Details

His main research interests include soft-switching dc–dc converters, soft-switching inverters, power factor correction converters, modeling the converters, power electronics

Full Feedforward of Grid Voltage for Grid-Connected Inverter

This paper proposes the feedforward function of the grid voltage for the grid-connected inverter with an LCL filter. Specifically, the proposed feedforward function involves

Control Techniques for LCL-Type Grid-Connected Inverters

This book focuses on control techniques for LCL-type grid-connected inverters to improve system stability, control performance and suppression ability of grid current harmonics. Combining a detailed theoretical analysis with design examples and experimental validations, the book offers an essential reference guide for graduate students and researchers in power

Xinbo Ruan''s research works | Nanjing University of

Xinbo Ruan''s 428 research works with 17,776 citations and 4,047 reads, including: A Reconstructed Singular Return Ratio Matrix for Optimizing Design of the PLL in Grid

LCL

Research on the Stability Caused by Phase-locked Loop for LCL-type Grid-connected Inverter in Weak Grid Condition WU Heng,RUAN Xinbo,YANG Dongsheng.Research on the Stability Caused by Phase-locked Loop for LCL-type Grid-connected Inverter in Weak Grid Condition[J].Proceedings of the CSEE,2014(30).

Impedance Shaping of the Grid-Connected Inverter with

Impedance Shaping of the Grid-Connected Inverter with LCL Filter to Improve Its Adaptability to the Weak Grid Condition Dongsheng Yang, Student Member, IEEE, Xinbo Ruan, Senior Member, IEEE, and

Capacitor-Current-Feedback Active Damping With Reduced

As a result, the LCL-type grid-connected inverter becomes much easier to be unstable if the resonance frequency is moved closer to fs/6 due to the variation of grid impedance. To address this issue, this paper proposes a capacitor-current-feedback active damping with reduced computation delay, which is achieved by shifting the capacitor current sampling instant

Step-by-Step Controller Design for LCL-Type

The injected grid current regulator and active damping of the LCL filter are essential to the control of LCL-type grid-connected inverters. Generally speaking, the current regulator guarantees the

Xinbo Ruan''s research works | Nanjing University of

Xinbo Ruan''s 428 research works with 17,776 citations and 4,047 reads, including: A Reconstructed Singular Return Ratio Matrix for Optimizing Design of the PLL in Grid-Connected Inverters

Step-by-Step Controller Design for LCL-Type Grid

Grid-Connected Inverter with Capacitor–Current-Feedback Active-Damping Chenlei Bao, Xinbo Ruan, Senior Member, IEEE, Xuehua Wang, Member, IEEE,WeiweiLi,

Ruan Xinbo | IEEE Xplore Author Details

Ruan Xinbo. Affiliation. Nanjing University of Aeronautics and Astronautics, Nanjing, China,Dc-link Overvoltage,Dc-link Voltage,Filter Capacitor,Grid Code,Grid Current,Grid Impedance,Grid Voltage,Grid-connected Inverter,Grid-connected System,Low-voltage Ride-through,Maximum Power Point,Negative Sequence Components,Outer Loop,Phase-locked

Control Techniques for LCL-Type Grid-Connected Inverters

Combining a detailed theoretical analysis with design examples and experimental validations, the book offers an essential reference guide for graduate students and

Control Techniques for LCL-Type Grid-Connected Inverters

The full-feedforward scheme of grid voltages for three-phase LCL-type grid-connected inverter has been introduced in Chap. 7, and the injected grid current harmonics and imbalance caused by grid voltages can be effectively suppressed. However, during the derivation of the full-feedforward scheme, the grid impedance is assumed to be zero.

A Full-Feedforward Scheme of Grid Voltages for a Three

A Full-Feedforward Scheme of Grid Voltages for a Three-Phase Grid-Connected Inverter With an LCL Filter Weiwei Li, Donghua Pan, Xinbo Ruan, Senior Member, IEEE, and Xuehua Wang

Xinbo Ruan

Compensation of Second Harmonic Current Based on Bus Voltage Ripple Limitation in Single-Phase Photovoltaic Grid-Connected Inverter. S. Kan, X. Ruan, X. Huang. IEEE Transactions on Industrial Electronics • Volume 70 Xinbo Ruan published in 1 ScienceDirect journals. International Journal of Electrical Power & Energy Systems Open access

Aalborg Universitet Direct Realization of Digital

LCL-Type Grid-Connected Inverter Pan, Donghua; Ruan, Xinbo; Wang, Xuehua Published in: IEEE Transactions on Power Electronics DOI (link to publication from Publisher): 10.1109/TPEL.2017.2780174 Publication date: 2018 Document Version Accepted author manuscript, peer reviewed version Link to publication from Aalborg University

Control Techniques for LCL-Type Grid

Impedance Shaping of LCL-Type Grid-Connected Inverter to Improve Its Adaptability to Weak Grid. Xinbo Ruan, Xuehua Wang, Donghua Pan,

Full-Feedforward of Grid Voltage for Single-Phase LCL-Type Grid

Figure 6.1 shows the configuration of a single-phase LCL-type grid-connected inverter, where the LCL filter is composed of L 1, C, and L 2.The primary objective of the grid-connected inverter is to control the grid current i 2 to synchronize with the grid voltage v g, and its amplitude can be regulated as required. ( i_{2}^{*} ) is the grid current reference, which

Full Feedforward of Grid Voltage for Grid-Connected Inverter

In [25] [26][27], it is verified that the grid voltage feedback on the control side of the inverter in a weak grid can effectively suppress the influence of grid voltage harmonics on the grid

A Real-Time Computation Method with Dual Sampling

LCL-Type Grid-Connected Inverter Dongsheng Yang, Student Member, IEEE, Xinbo Ruan, Senior Member, IEEE, Heng Wu Abstract—Due to the higher attenuation of the switching frequency

Control Techniques for LCL-Type Grid-Connected Inverters

Xinbo Ruan, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, China Kuang Shen, Zhejiang University, Hangzhou, Zhejiang, China LCL-type grid-connected inverter, being a conversion interface between the renewable energy power generation units and the power grid, has been widely used

Control Techniques for LCL-Type Grid-Connected Inverters

LCL-type grid-connected inverter, being a conversion interface between the renewable energy power generation units and the power grid, has been widely used to convert dc power to high

Aalborg Universitet Direct Realization of Digital

LCL-Type Grid-Connected Inverter Donghua Pan, Member, IEEE, Xinbo Ruan, Fellow, IEEE, and Xuehua Wang, Member, IEEE Abstract—To damp the LCL-filter resonance in a grid-

Passivity-Oriented Impedance Shaping for LCL-Filtered Grid-Connected

The passivity theory provides an effective way to tackle the instability due to the inverter-grid interaction, which tells that the system stability can be guaranteed if the grid impedance and the inverter output impedance are both passive. Since the grid impedance is generally passive, the system stability can be immune to the grid impedance variation if the

Direct Realization of Digital Differentiators in Discrete Domain

Direct Realization of Digital Differentiators in Discrete Domain for Active Damping of LCL-Type Grid-Connected Inverter. / Pan, Donghua; Ruan, Xinbo; Wang, Xuehua. In: IEEE Transactions

Robust capacitor-current-feedback active damping for the LCL-type grid

As a result, the LCL-type grid-connected inverter becomes much easier to be unstable if the resonance frequency is moved closer to fs/6 due to the variation of the grid impedance.

2021 - Xinze Huang,Xinbo Ruan - 《IEEE Open Journal of the Industrial Electronics Society》 - : 0 An Ignored Culprit of Harmonic Oscillation in <italic>LCL</italic>-Type Grid-Connected Inverter: Resonant Pole Cancelation

Full-Feedforward Schemes of Grid Voltages for a Three-Phase --Type Grid

Abstract: This paper investigates the feedforward schemes of grid voltages for a three-phase LCL-type grid-connected inverter.The full-feedforward functions of grid voltages are derived for the stationary α- β frame, synchronous d - q frame, and decoupled synchronous d - q frame-controlled three-phase LCL-type grid-connected inverters.The derived full-feedforward

Ruan Xinbo | IEEE Xplore Author Details

Ruan Xinbo. Affiliation. Nanjing University of Aeronautics and Astronautics, Nanjing, China,Dc-link Overvoltage,Dc-link Voltage,Filter Capacitor,Grid Code,Grid Current,Grid

Impedance Shaping of LCL -Type Grid-Connected Inverter to

DOI: 10.1007/978-981-10-4277-5_10 Corpus ID: 66973725; Impedance Shaping of LCL -Type Grid-Connected Inverter to Improve Its Adaptability to Weak Grid @inproceedings{Ruan2018ImpedanceSO, title={Impedance Shaping of LCL -Type Grid-Connected Inverter to Improve Its Adaptability to Weak Grid}, author={Xinbo Ruan and