Cart (Loading....) | Create Account
Close category search window
 

An improved DSP-based control strategy with predictive current control and fuzzy voltage control for grid-connected voltage source inverters

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Bo Yang ; Coll. of Electr. Eng., Zhejiang Univ., Hangzhou ; Jiande Wu ; Xiaodong Lu ; Xiangning He

This paper presents an improved DSP-based control strategy with combined voltage and current for gird-connected voltage source inverters (VSIs). A predictive current control strategy in the inner loop and a fuzzy voltage control strategy in the outer loop are respectively discussed in detail. A new predictive current control expression is obtained, which calculates the inverter voltages required to force the output current to accurately follow the reference current. This algorithm can eliminate the steady-state phase error between the output and reference current, and compensate for the errors caused by sample delays and discretization computation, with a fixed switching frequency. And a fuzzy logic controller with 9 fuzzy levels and 41 fuzzy levels is applied, which can stabilize the DC bus voltage and overcome the systempsilas variability and nonlinearity. These characteristics are highly applicable to the alternative energy system, especially to the photovoltaic (PV) power system. Combining the advantages of the current prediction and voltage fuzzy control, the system robustness is enhanced and minimum current error, a unity power factor and low THD are achieved. At last, a 10 kW prototype of three-phase grid-connected VSI was built and the proposed dual-loop controller was implemented by DSP TMS320F2808. The experimental results verify the validity of the theoretical analysis in this paper.

Published in:

Industrial Electronics, 2008. IECON 2008. 34th Annual Conference of IEEE

Date of Conference:

10-13 Nov. 2008

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.