| Authors |
Woo-Hyun Kim ; Chul-Woo Park |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2012.26.11.054 |
| Keywords |
DVR ; Response Speed ; Voltage Dip ; 3-Phase Phase-Controlled Rectifier |
| Abstract |
This study investigated the relationship between the response time of DVR (Dynamic Voltage Restorer) and the possible compensation range for voltage dips by the DVR system which protects the 3-phase phase-controlled rectifier from said dips. As a result, the permissible range of voltage dip is presented in a 3-phase phase-controlled rectifier. When the DVR compensates for voltage dip, the range of voltage dip can be compensated according to the DVR"s response time. Using the proposed method, DVR response time can be determined from the parameters of the 3-phase phase-controlled rectifier and the possible compensatory range of voltage dip, while at the same time it is possible to use a control system having an appropriate speed. Therefore, the use of excessively fast equipment can be avoided, improving the stability of the overall system. The reliability of the DVR concerning the 3-phase phase-controlled rectifier can be verified by simulation. |