Magnetic Flux Control In An Urban Distribution Network Based On Load Optimisation
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-ENERGY(2021)
摘要
This paper proposes a control method for eliminating direct current (DC) flux from the isolation transformer of a customer service device to avoid magnetic saturation. The method is characterised by injecting zero compensation voltage during a designed time. The period during which no compensation voltage is injected is minimised by adjusting the normal compensation time in the initial stage. For a customer service device, such as a dynamic voltage restorer, the reverse turn-off voltage will introduce extra initial flux. The calculation process based on a trigonometric function also takes into account the effects of the initial flux. The experimental results verify the proposed method to prevent DC flux to the isolation transformer.
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关键词
electrical engineering & distribution, energy conservation, power
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