针对现代电力系统发展时面临的短路电流水平升高以及带来的断路器遮断容量不足的现状，避免了传统限流装置的能耗巨大、造价昂贵、技术复杂、体积庞大等问题，研究开发出适用于快速开关型零损耗主动型限流装置，可有望缓解目前国内电网短路电流增长过快的状况。论文主要工作如下： 首先，分析了现有电力系统的限流需求以及现存的限流技术优缺点，提出了零损耗主动型深度限流器的设计、关键技术和优化的方法，其中，采用倒置CVT由330kV线路直接获取装置的工作电源,可以避免外接电源，采用恒流取能方式确保装置电源的稳定供能；限流单元的设计采用一台智能高速开关并联在一台限流电抗器两端的短路运行限流方案，每一个限流单元接入需要限流的支路后，都按照在最大的短路电流出现时，限流单元的快速真空断路器开断，电抗器接入限流；并且，为了降低给电力系统带来的损耗，采用涡流快速开关技术，加速了装置的投入与切出。 接着，对所研究与设计装置进行了性能测试，包括实验室测试和挂网运行测试，对装置的限流深度、损耗、开关动作、开断的准确性与快速性、端口耐压等性能进行了全面测试。 最后，提出了装置安装地点与类型选择的优化方法，并利用实际电网验证装置在实际电网运行中的限流效果。 零损耗主动型深度限流装置能够根据短路电流水平灵活投入限流单元，具有可扩展行，对于现在快速发展的电力系统的限流可以提供一种新的措施。

In response to the current situation in the development of modern power systems, the short circuit current level is increasing and the current capacity of circuit breakers is insufficient. This avoids the problems of large energy consumption, high cost, complicated technology, and large volume of traditional current limiting devices. It is applicable to the fast switching type zero loss active current limiting device, which may be expected to alleviate the current rapid growth of short circuit current in the domestic power grid. The main work of the thesis is as follows: Firstly, the current limit requirements of existing power systems and the advantages and disadvantages of existing current limiting technologies are analyzed. The design, key technologies and optimization methods of zero-loss active deep current limiters are proposed. Among them, the use of inverted CVTs is directly performed by 330 kV lines. The operating power of the device is obtained, and a constant current is used to ensure the stable power supply of the device. The design of the current limiting unit adopts a short-circuit operation and current limiting scheme where an intelligent high-speed switch is connected in parallel at both ends of a current-limiting reactor. After a current limiting unit is connected to a branch requiring current limitation, the fast vacuum circuit breaker of the current limiting unit is opened and the reactor is connected to the current limit in accordance with the occurrence of the maximum short-circuit current; and, in order to reduce the power system band, The loss from the use of eddy current fast switching technology has accelerated the input and output of the device. Then, the performance of the research and design device was tested, including laboratory tests and the test of the running of the hanging network. The current limiting depth, loss, switching action, accuracy and rapidity of breaking, port pressure resistance, etc. were performed. Comprehensive testing. Finally, an optimization method for the installation location and type selection of the device is proposed, and the actual network verification device is used to verify the current limiting effect in the actual grid operation. The zero-loss active depth limiting device can flexibly input the current limiting unit according to the short-circuit current level and has an expandable line, which can provide a new measure for the current limiting of the rapidly developing power system.