A novel dual closed-loop control scheme based on repetitive control for grid-connected inverters with an LCL filter.
Sign Up to like & getrecommendations! Published in 2018 at "ISA transactions"
DOI: 10.1016/j.isatra.2018.01.029
Abstract: Grid-connected inverters with LCL filters need high steady-state control accuracy, fast dynamic response performance, and strong robustness to guarantee the power quality. However, there are many problems in traditional control strategies that restrict improvements to… read more here.
Keywords: repetitive control; control grid; control; inverters lcl ... See more keywords
Adaptive control technique for suppression of resonance in grid‐connected PV inverters
Sign Up to like & getrecommendations! Published in 2019 at "IET Power Electronics"
DOI: 10.1049/iet-pel.2018.5170
Abstract: Grid operating conditions have a significant effect on the harmonic and resonant performance of grid-connected photovoltaic (PV) inverters and changes in grid impedance can cause a notable change in the resonant excitation between the PV… read more here.
Keywords: resonance grid; connected inverters; adaptive control; grid connected ... See more keywords
A New Approach to H-Infinity Control for Grid-Connected Inverters in Photovoltaic Generation Systems
Sign Up to like & getrecommendations! Published in 2019 at "Electric Power Components and Systems"
DOI: 10.1080/15325008.2019.1689445
Abstract: Abstract The present study investigates the stability problem of the grid-connected inverters (GCIs) for possible variations in grid impedance. A new type of H∞ control method is proposed for the current control loop of inverters,… read more here.
Keywords: systems new; control; connected inverters; grid connected ... See more keywords
Self-Synchronizing Stationary Frame Inverter-Current-Feedback Control for LCL Grid-Connected Inverters
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Emerging and Selected Topics in Power Electronics"
DOI: 10.1109/jestpe.2021.3086262
Abstract: Current regulation of inductive–capacitive–inductive (LCL) grid-connected inverters usually requires multiple current sensors to actively damp the filter resonance. Inverter-side current regulation avoids this issue because of its inherent LCL filter damping properties but does not… read more here.
Keywords: frame; control; side current; connected inverters ... See more keywords
Finite-Time Consensus for Power Regulation of Parallel PV Grid-Connected Inverters
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2020.2964956
Abstract: Several small photovoltaic (PV) grid-connected inverters (GCIs) connected to a single PV array are applied in parallel in large-capacity applications since the power generation efficiency can be improved through appropriate control strategies. The control problem… read more here.
Keywords: finite time; regulation; connected inverters; power ... See more keywords
Robust Control Scheme for Three-Phase Grid-Connected Inverters With LCL-Filter Under Unbalanced and Distorted Grid Conditions
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Energy Conversion"
DOI: 10.1109/tec.2017.2757042
Abstract: The grid voltage, especially under unbalanced and harmonically distorted grid conditions, often distorts the injected currents of grid-connected inverters. To address this problem, a robust control scheme of grid-connected inverters is presented in this paper.… read more here.
Keywords: scheme; grid connected; control scheme; connected inverters ... See more keywords
A Generic Multicell Network Control for Three-Phase Grid-Connected Inverters
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2022.3181413
Abstract: The inherent resonance of LCL filters threatens the inverter stability seriously. Moreover, the strong $dq$-axis cross-coupling of LCL-filtered grid-connected inverters in a synchronous frame goes against the independent regulation of active ($P$) and reactive ($Q$)… read more here.
Keywords: connected inverters; control; tex math; inline formula ... See more keywords
Passivity-Based Design of Repetitive Controller for $LCL$-Type Grid-Connected Inverters Suitable for Microgrid Applications
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Power Electronics"
DOI: 10.1109/tpel.2020.3014365
Abstract: A repetitive controller (RC) is one of the most promising candidates for harmonic compensation when designing the current controller of grid-connected inverters. The discrete-time closed-loop transfer function based frequency response method can be used to… read more here.
Keywords: grid connected; repetitive controller; design; connected inverters ... See more keywords
Adaptive Power Control Strategy for Smart Droop-Based Grid-Connected Inverters
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Smart Grid"
DOI: 10.1109/tsg.2022.3141265
Abstract: Grid-connected inverters play an important role in the integration of renewable energy sources such as solar and wind. However, due to the unneglectable grid impedance value seen by the inverters at the point of common… read more here.
Keywords: connected inverters; control; power; power flow ... See more keywords