Three-Phase PWM-Switched Autotransformer Voltage-Sag Compensator Based on Phase Angle Analysis

Muhamad Mansor; Nasrudin Abd. Rahim

Three-Phase PWM-Switched Autotransformer Voltage-Sag Compensator Based on Phase Angle Analysis

Muhamad Mansor

Nasrudin Abd. Rahim

Vol. 11, No. 6, pp. 897-903, Nov. 2011

10.6113/JPE.2011.11.6.897

Peak detection

RMS detection

Voltage sag

Voltage sag compensator

Voltage sag detection

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Abstract

Many voltage sag compensators have been introduced, including the traditional dynamic voltage restorer (DVR), which requires an energy storage device but is inadequate for compensating deep and long-duration voltage sags. The AC-AC sag compensators introduced next do not require a storage device and they are capable of compensating voltage sags. This type of compensator needs an AC-AC converter to regulate the output voltage. Presented in this paper is a three-phase PWM-switched autotransformer voltage sag compensator based on an AC-AC converter that uses a proposed detection technique and PWM voltage control as a controller. Its effectiveness and capability in instantly detecting and compensating voltage sags were verified via MATLAB/Simulink simulations and further investigated through a laboratory prototype developed with a TMS320F2812 DSP as the main controller.

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Cite this article

[IEEE Style]

M. Mansor and N. A. Rahim, "Three-Phase PWM-Switched Autotransformer Voltage-Sag Compensator Based on Phase Angle Analysis," Journal of Power Electronics, vol. 11, no. 6, pp. 897-903, 2011. DOI: 10.6113/JPE.2011.11.6.897.

[ACM Style]

Muhamad Mansor and Nasrudin Abd. Rahim. 2011. Three-Phase PWM-Switched Autotransformer Voltage-Sag Compensator Based on Phase Angle Analysis. Journal of Power Electronics, 11, 6, (2011), 897-903. DOI: 10.6113/JPE.2011.11.6.897.