Flexible compact transmission mode and its realization technologies

The stress from the right-of-way of lines and electromagnetic environment, the long-distance, large-capacity, saving-corridor and well-electromagnetic-environment power transmission mode is actually required in China. This paper proposes the concept of flexible compact transmission system, which would combine technical advantages of compact transmission line and flexible AC transmission system. It is promising to solve these problems synthetically with flexible compact transmission system mode. Its technical contents are introduced, and preliminary simulations and calculations in transmission capacity of flexible compact transmission system are performed, and the complex problems are discussed. The preliminary research shows that flexible compact transmission system will have large transmission capacity for long-distance power transmission, and obvious efficiency of saving corridor and meliorating electromagnetic environment because of characteristics of compact transmission lines. On the background of electric power system development strategy transmission of electric power from the western to the eastern region in China, the flexible compact power transmission systems are worthy of being researched and performed in EHV AC and UHV AC power transmission system.