Voltage Sag Compensation with Energy Optimized Dynamic Voltage Restorer
Voltage Sag Compensation with Energy Optimized Dynamic Voltage Restorer
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DOI：
10.1109/mper.2002.4311764
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发表时间：
2002-10
期刊：
影响因子：
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通讯作者：
M. Vilathgamuwa;A. R. Perera;S. Choi
中科院分区：
文献类型：
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作者：
M. Vilathgamuwa;A. R. Perera;S. Choi
动态电压恢复器（DVR）的补偿能力主要取决于最大电压注入能力和恢复器内可用的存储能量的量。为了提高DVR的电压恢复性能，提出了一种新的相位超前补偿策略。该方案只需要从DVR的能量注入的最佳量，以纠正给定的电压暂降。还包括电源电压幅度和相位检测方案以及相位提前确定方案。所得到的DVR的设计被证明是上级在较低的存储能量需要相比，传统的同相升压方法。分析结果进行了实验室测试的恢复器的原型。所提出的方法的有效性进行了说明。
The compensation capability of a dynamic voltage restorer (DVR) depends primarily on the maximum voltage injection ability and the amount of stored energy available within the restorer. A new phase advance compensation (PAC) strategy for the DVR is proposed in order to enhance the voltage restoration property of the device. The scheme requires only an optimum amount of energy injection from the DVR to correct a given voltage sag. Supply voltage amplitude and phase detection scheme as well as a phase advance determination scheme are also included. The resulting DVR design is shown to be superior in terms of lower storage energy need compared to the conventional in-phase boosting method. The analytical results are validated by laboratory tests carried out on a prototype of the restorer. The efficacy of the proposed method is illustrated.