Symmetrical Switching of a Three-Phase Rectifier to improve the power factor in the mini hydroelectric frequency control
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2017, Vol 12, Issue 4
Abstract
his research analyzes a three-phase bridge rectifier, switches in series with the load switched symmetric angle, helping the effective current rates, active, reactive, apparent and distortion and power factor. The goal is to apply the switched rectifier with symmetrical angle for power factor improvement in micro hydroelectric power stations operating in isolated system, and changing the frequency regulating the power dissipated in the ballast loads alternating current AC converters. Interestingly, the power factor at the input terminals of the three-phase rectifier is slightly smaller than when converters CA-CA is used and despite this the rectifier improving the power factor of the network. In addition the power factor at the generator terminals in scheme uses the AC-AC converter is higher than in the converters and the load by separate users, this is because the active power consumed by users and by converters is greater than the total reactive power and distortion introduced by the converters. The three-phase rectifier bridge, with a series switch on the ballast switched symmetric angle load improves the power factor of the power system μCH, a result corroborated by simulation and calculation, which is an improvement over the current circuit, AC-AC converter. Indexterms: Rectifier; symmetrical switching; CA-CA converter; power factor; frequency control
Authors and Affiliations
L. A. Enríquez García, H. Bory, C. E. Mantilla, C. Miranda
Keywords
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- EP ID EP388244
- DOI 10.9790/1676-1204036071.
- Views 137
- Downloads 0
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