## Impedance shaping of the grid-connected inverter with LCL filter to improve its adaptability to the weak grid condition

- D. Yang, X. Ruan, H. Wu
- IEEE Trans. Power Electron
- 2014

Highly Influential

4 Excerpts

- Published 2016

Abstract: Power hardware-in-the-loop (PHIL) systems are advanced, real-time platforms for combined software and hardware testing. Two paramount issues in PHIL simulations are the closed-loop stability and simulation accuracy. This paper presents a virtual impedance (VI) method for PHIL simulations that improves the simulation’s stability and accuracy. Through the establishment of an impedance model for a PHIL simulation circuit, which is composed of a voltage-source converter and a simple network, the stability and accuracy of the PHIL system are analyzed. Then, the proposed VI method is implemented in a digital real-time simulator and used to correct the combined impedance in the impedance model, achieving higher stability and accuracy of the results. The validity of the VI method is verified through the PHIL simulation of two typical PHIL examples.

@inproceedings{Zha2016ImprovingTS,
title={Improving the Stability and Accuracy of Power Hardware-in-the-Loop Simulation Using Virtual Impedance Method},
author={Xiaoming Zha and Chenxu Yin and Jianjun Sun and Meng Huang and Qionglin Li},
year={2016}
}