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Design of a Three-phase Voltage Regulator Equipped with Voltage Balancing Technique | ||
| Journal of University of Babylon | ||
| Article 1, Volume 20, Issue 4, 2012, Pages 979-993 | ||
| Author | ||
| Abdul-Kareem M. Obais | ||
| Abstract | ||
| This paper presents a controlling strategy based on the addition of three reactive T-section circuitries connected in series with a star-connected 3-phase load impedance. The left hand side branch of each T-section is a pure inductance having a constant reactance of +jX, while the right hand side impedance is a pure capacitance having a constant reactance of –jX. The middle branch is a susceptance B, which is composed of a switched capacitor bank in shunt with a switched inductor and is connected to the star point of the load impedance. This susceptance is controllable in the range of ±Bmax. The system is capable of maintaining the three-phase load voltage at its rated value even though the power system voltage is varying within the range of 80% to 120% of its rated value. In addition, the system is equipped with voltage balancing technique and is almost free from harmonics. The whole system was designed and implemented using PSpice Program | ||
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