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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Khomfoi, S. |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Electr. Eng., King Mongkut's Inst. of Technol. Ladkrabang, Bangkok, Thailand (Khomfoi, S.) |
| Abstract | AC-Choppers using instantaneous voltage control technique to solve voltage sag problems are proposed in this paper. The developed AC-chopper for series voltage sag compensation is applied for three phase four wire system; therefore, three single phase ac chopper circuits and three series transformers are utilized. By using AC-chopper, there are no required for a dc bus; thereupon, the size of proposed voltage sag compensator is smaller. Each AC-chopper cell is independently controlled by using instantaneous voltage control method. With this proposed technique, the AC-chopper can rapidly compensate the related voltage sag and provide constant output voltages. Positive sequence PLL is applied to generate angle velocity (ω) thus the proposed AC-chopper can perform both balance and unbalance voltage sag. MATLAB/Simulink is used to simulate the proposed control algorithm and circuit operation. The 2-kW prototype is also developed for experimental validation. The results illustrate that the developed voltage sag compensator can perform within 3 ms responding time and the total harmonic voltage distortion is less than 2 % with overall system efficiency about 90%. |
| Starting Page | 2392 |
| Ending Page | 2399 |
| File Size | 5047621 |
| Page Count | 8 |
| File Format | |
| ISBN | 9781479927050 |
| ISSN | 21506086 |
| DOI | 10.1109/IPEC.2014.6869924 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-05-18 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Radio frequency Wires Prototypes series voltage sag compensation Pulse width modulation AC-chopper Silicon Generators MATLAB instantaneous value voltage control |
| Content Type | Text |
| Resource Type | Article |
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