特高压交流和直流换流变压器技术

Transformer Technology for UHV AC and DC

800kV直流和1000kV交流输电系统变压器的设计和制造是一种新的挑战，不能通过以较低额定电压变压器的设计经验作外延推算而获得。要求设计能把很高的可靠性，可接受的运输条件，较低的制造成本等因素结合起来考虑。叙述了用于特高压交流和直流换流变压器的分析技术，对特高压变压器开发和设计工作进行了综述并提出了范例。同时讨论了对中国输电系统日前样机设计研究的成果。

The design and manufacture of transformers for 800kV DC and 1 000kV AC transmission systems presents new challenges and cannot be achieved by extrapolating designs for lower voltage ratings. The designs need to combine high reliability with acceptable transport requirements and an economic cost of manufacture. This paper gives an overview and examples of development work and design for UHV transformers. Analysis techniques applied to UHV AC and DC transformers are outlined and the results of recent prototype design studies for the Chinese transmission systems is discussed.