A novel AC voltage regulator topology

A novel AC voltage regulator topology is proposed. The output voltage is varied by controlling the voltage drop of the transformer which is connected with load in series. The range of thyristor firing angle is from 90 degrees to 180 degrees for inverting operation. The output voltage is varied from...

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Published inProceedings IECON '91: 1991 International Conference on Industrial Electronics, Control and Instrumentation pp. 825 - 829 vol.1
Main Authors Lee, J.-M., Oh, S.-C., Joe, K.-Y., Kim, Y.-H.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1991
Subjects
Choppers
Circuit simulation
Circuit topology
Inverters
Phase control
Reactive power
Regulators
Switching circuits
Thyristors
Voltage control
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Summary:A novel AC voltage regulator topology is proposed. The output voltage is varied by controlling the voltage drop of the transformer which is connected with load in series. The range of thyristor firing angle is from 90 degrees to 180 degrees for inverting operation. The output voltage is varied from zero to source voltage as the firing angle is controlled from 180 degrees to 90 degrees . The waveform of the output voltage is clamped sinusoidal; harmonic components are remarkably decreased compared with the conventional thyristor phase control. The feasibility of the proposed topology is verified experimentally.< >
ISBN:9780879426880
0879426888
DOI:10.1109/IECON.1991.239182