文章介绍了可控串补控制器（ＴＣＳＣ）的设计和基本特性的试验结果。ＴＣＳＣ控制器模型采用功能分层化设计和相应的硬件模块化设计，使ＴＣＳＣ控制器模型具有较大的柔性和较强的鲁棒性。模拟试验结果说明通过适当的控制策略，ＴＣＳＣ控制器可以快速调节阻抗，准确灵活地实现不同阻抗控制模式之间的转换。设计的底层控制在模式转换中有利于系统稳定。同时，因为控制器的设计和实现，是以工程应用能实现的条件为基础的，所以它具有较大的实用性和工程指导意义。 This paper presents the experimental results of the design and basic characteristics of a controllable series compensator (TCSC). The TCSC controller model adopts the functional hierarchical design and the corresponding hardware modular design to make the TCSC controller model more flexible and more robust. Simulation results show that with appropriate control strategy, TCSC controller can quickly adjust the impedance, accurately and flexibly to achieve the conversion between different impedance control modes. The design of the underlying control in the mode conversion is conducive to system stability. At the same time, because the design and implementation of the controller are based on the conditions that can be achieved by engineering applications, it has great practicality and engineering guidance.