A Voltage Sag Supporter Utilizing a PWM-Switched Autotransformer
نویسندگان
چکیده
منابع مشابه
Comparitive Study on Voltage Sag Compensation Utilizing Pwm Switched Autotransformer by Hvc
Custom Power devices like Dynamic voltage restorer and STATCOM are normally employed as a solution for mitigation of power quality problems like voltage sag and swell. In this paper new voltage sag compensators based on an autotransformer and an IGBT switched by PWM technique and Hysteresis Voltage Control (HVC) method are compared. These two schemes are able to recognize the voltage sag condit...
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Enhancing compensating capability is essential in a voltage-sag compensator. It involves two main aspects, first, sag detection technique and second, voltage sag compensator. Many detection techniques have been introduced to measure and to detect voltage sag, such as RMSValue Evaluation and Peak-Value Evaluation. Unfortunately, most of the techniques require a delay for sag to be detected then ...
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AbspuctThe saturable inductor is employed in the fullbridge (FB) zero-voltage-switched (ZVS) pulsewidth-modulated (PWM) converter to improve its performance. The current and voltage stresses of the switches as well as parasitic oscillations are significantly reduced compared to those of the conventional FBZVS-PWM converter. The qualitative analysis is presented and is verified on a 500 KHz, 5 V...
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Voltage sags caused by the short-circuit faults in transmission and distribution lines have become one of the most important power quality problems facing industrial customers and utilities. Voltage sags are normally described by characteristics of both magnitude and duration, but phaseangle jump should be taken into account in identifying sag phenomena and finding their solutions. In this pape...
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ژورنال
عنوان ژورنال: IEEE Transactions on Power Electronics
سال: 2007
ISSN: 0885-8993
DOI: 10.1109/tpel.2006.890004