【摘要】 高频高压变压器的微小分布电容对变压器的性能和带有变压器的高频高压电源的性能有着重要影响,分布电容会加大变压器的损耗,降低了变换器的功率因数和效率。文中分析了高频高压变压器匝间电容和层间电容的大小对高频高压变压器的电压分布和可靠性的影响,指出减小层间分布电容和降低单层电压对变压器的可靠运行的重要意义。通过对不同绕组结构型式下的层间分布电容大小的分析和比较,指出采用"Z"型绕法和"∠"型绕法能够进一步减小高频高压变压器的层间分布电容,同时降低了变压器的绝缘要求,大幅改善高频高压变压器的电压分布,提高了变压器的绝缘耐压水平和可靠性。更多还原

【Abstract】 The tiny distributed capacitors of high-frequency high-voltage transformer have significant influence on the performance of transformers and the performance of high-frequency high-voltage power supplies,which contain transforms.The distributed capacitors increase the loss of transformer,and decrease the power factor and efficiency of the converters.This paper analyses influence on the voltage distribution and reliability of high-frequency high-voltage transformers by the magnitude of the transformers’ inter-turn distributed capacitor and inter-layer distributed capacitor.And the paper points out that,decreasing the inter-layer distributed capacitor and the layer voltage has great significance.After analyzing and comparing the inter-layer distributed capacitor of different kinds of winding structure,it is shown in the paper,that the "Z" type and "∠" type winding structure can further reduce the inter-layer distributed capacitor of high-frequency high-voltage transformers,and decrease the insulation requirement of the transformers.Moreover,it can improve the voltage distribution of the transformers greatly,and increase the transformers’ insulation level and reliability.更多还原