Enhanced stability of grid-connected inverter using adaptive filtering
Results demonstrate improved performance under significant variations, including up to 300% fluctuations on both the inverter and grid sides, as well as variations in reference current.
Decoupling PR-repetitive control for off-grid current-source
Thus, this paper proposes a decoupling proportional-resonant (PR)-repetitive control and an active damping strategy for of-grid CSIs with CLC filters. First, the CLC filter, a dual form of LCL filter in grid
Parameters Design and Optimization for LC-Type Off-Grid Inverters
In order to develop a systemic design principle, the capacitor-voltage control with inductor-current feedback active damping evolved from traditional dual-loop control is analyzed in detail.
An Improved Active Damping Method for Enhancing Robustness of
Active damping techniques are mainly divided into two kinds including the single-loop structure of the grid current feedback and the dual-loop structure of the grid current plus capacitor current feedback.
Adaptive inertia and damping of grid‐connected inverter with improved
For the above problems, this paper analyzes the inertia and damping characteristics of the synchronous motor in the rotation of synchronous motors, and applies artificial neural network
A General Graphical Evaluation Method for Capacitor-current Active
This provides a universal graphical tool to evaluate and compare the positive-damping capability of different feedback functions for a grid-connected inverter. The following table
Optimization of Passive Damping for LCL-Filtered AC Grid
Various passive damping schemes, based on the placement of resistors (R), are compared and analyzed, ultimately selecting the capacitor branch series resistor as the optimal
Frequency response modeling and online parameter adjustment of
Motivated by these challenges, this study investigates the frequency response modeling and application of inverter-based source in off-grid renewable energy systems.
Stability Analysis and Parameters Design of the Voltage Source
To deal with this problem, the stability of the system with passive damping is investigated. Aiming at the problem that passive damping methods introduce power loss, Active damping methods are proposed.
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