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Apparatus and methods for controlling operation of a single-phase voltage regulator in a three-phase power system
Apparatus and methods for controlling operation of a single-phase voltage regulator in a three-phase power system
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机译:用于控制三相电力系统中的单相电压调节器的操作的设备和方法
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摘要
Provided are methods for controlling operation of a voltage regulator of a single-phase of a three-phase power system to regulate a measured voltage. One of the methods includes recording a first elapsed time between detecting a first excursion of the measured voltage from an in-band area to an out-of-band area, and a first return of the measured voltage to the in-band area. The method also includes recording a second elapsed time period (dip period) between detecting the first return and a second excursion of the measured voltage from the in-band area to an out-of-band area. If the second elapsed time period is less than a predetermined dip time period, causing a tap position change of the voltage regulator upon expiration of a countdown period initiated upon detecting the first excursion, thereby adjusting the measured voltage to the in-band area while allowing a voltage drop of limited length.
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