CIVILICA We Respect the Science
Publisher of Iranian Journals and Conference Proceedings
Paper
title

Robust Nonlinear Control of MMC-VSC for Connection of Energy Resources to Weak Grids with Low SCR

Credit to Download: 1 | Page Numbers 9 | Abstract Views: 91
Year: 2017
COI code: IEAC04_007
Paper Language: English

How to Download This Paper

For Downloading the Fulltext of CIVILICA papers please visit the orginal Persian Section of website.

Authors Robust Nonlinear Control of MMC-VSC for Connection of Energy Resources to Weak Grids with Low SCR

  Amin Mohammadpour Shotorbani - Faculty of Electrical and Computer Engineering ،University of Tabriz, Tabriz, Iran
  Behnam Mohammadi-Ivatloo - Faculty of Electrical and Computer Engineering ،University of Tabriz, Tabriz, Iran
  Jaber Fallah Ardashir - Department of Electrical Engineering, Tabriz Branch, ،Islamic Azad University, Tabriz, Iran
Liwei Wang - School of Engineering, University of British Columbia, Okanagan, BC, Canada

Abstract:

This paper discuss the application of robust finite-time nonlinear control scheme to voltage source converters (VSCs), to enhance the robustness and transient response of the VSC connected to a weak ac grid. Recently, modular multilevel converter (MMCs) are extensively used to connect large-scale renewable energy resources to grid, through MMC-VSCHVDC systems. Lyapunov stability criterion is used along with the detailed nonlinear model of the grid-connected VSC to derive an effective control scheme which is independent of the ac system strength. Power flow control and DC link voltage control are investigated. Finite-time convergence of the proposed controller provides very fast and accurate tracking capability to the closed-loop VSC system. The robustness of the system is mathematically proved and substantially analyzed in detail, for external disturbances and parameter variations. Average-value model of the VSC is used for simulation. The proposed scheme is applied to control of a modular multilevel converter VSC-HVDC system in both rectifying and inverter modes. Power control, current regulation, and circulating current suppressing control loops of the MMC-VSC are investigated using the proposed FTC scheme. Moreover, performance of the proposed control scheme is evaluated in connecting the grid-side VSC of a large-scale wind farm to a weak grid with a low SCR value at the PCC. The impact of different grid’s strength and the injected active/reactive power on the variations of the PCC’s voltage of a weak grid are investigated. It is shown that the proposed FTC yields fast transient and resilient response, and improves the robustness of the VSC control system in connection to a weak grid

Keywords:

Voltage source converter, Modular multilevel ،converter, HVDC, control Lyapunov function, finite-time control

Perma Link

https://www.civilica.com/Paper-IEAC04-IEAC04_007.html
COI code: IEAC04_007

how to cite to this paper:

If you want to refer to this article in your research, you can easily use the following in the resources and references section:
Mohammadpour Shotorbani, Amin; Behnam Mohammadi-Ivatloo; Jaber Fallah Ardashir & Liwei Wang, 2017, Robust Nonlinear Control of MMC-VSC for Connection of Energy Resources to Weak Grids with Low SCR, 4th International Conference on Technology and Energy Management, تهران, انجمن انرژي ايران, https://www.civilica.com/Paper-IEAC04-IEAC04_007.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Mohammadpour Shotorbani, Amin; Behnam Mohammadi-Ivatloo; Jaber Fallah Ardashir & Liwei Wang, 2017)
Second and more: (Mohammadpour Shotorbani; Mohammadi-Ivatloo; Fallah Ardashir & Wang, 2017)
For a complete overview of how to citation please review the following CIVILICA Guide (Citation)

Scientometrics

The University/Research Center Information:
Type: state university
Paper No.: 17389
in University Ranking and Scientometrics the Iranian universities and research centers are evaluated based on scientific papers.

Research Info Management

Export Citation info of this paper to research management softwares

New Related Papers

Iran Scientific Advertisment Netword

Share this paper

WHAT IS COI?

COI is a national code dedicated to all Iranian Conference and Journal Papers. the COI of each paper can be verified online.