By Topic

Voltage Swell and Overvoltage Compensation With Unidirectional Power Flow Controlled Dynamic Voltage Restorer

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

3 Author(s)
Chi-Seng Lam ; Power Electron. Lab., Macau Univ., Macau ; Man-Chung Wong ; Ying-Duo Han

Voltage swell and overvoltage compensation problems in a diode-bridge rectifier supported transformerless-coupled dynamic voltage restorer (DVR) are discussed. When swell or overvoltage happens, applying conventional in-phase or phase-invariant boosting method causes a rapid rise in dc-link voltage, which may damage the storage capacitors and switching devices, and increase the switching loss. This paper illustrates the inability of the minimum energy injection scheme to solve these problems during unbalanced situations. Therefore, we propose a novel unidirectional power flow control algorithm with DVR maximum compensation limit consideration, which can effectively suppress problems of continuous rising in dc-link voltage. Progressive phase rotating method is applied to prevent compensated load voltage distortion or discontinuity. Appropriate and practical design of the dc storage capacitor's rating is also discussed. Simulation and experimental results for unbalanced voltage swell compensation are given to prove the validity and superior performance of the proposed algorithm.

Published in:

Power Delivery, IEEE Transactions on  (Volume:23 ,  Issue: 4 )