双向潮流固态限流器的控制策略与试验

Control Strategy and Test Study of Bi-directional Current's Solid State Fault Current Limiter

提出了变压器耦合三相桥式固态限流器在双向潮流情况下的控制策略,并在模型试验系统上进行了试验验证,证实了所提出的控制策略能够确保固态限流器在正常启动、运行以及故障限流情况下都有良好的控制性能和限流效果；同时对固态限流器在双侧电源场合下可能存在启动时间过长及其控制系统的抗干扰问题也进行了较为深入的分析,并提出了相应的有效解决措施。

The control strategy of transformer coupling three-phase bridge type solid state fault current limiter （SSFCL） on the condition of hi-directional current is proposed arid proved on a SSFCL model testing system. The test results demonstrate that the control strategy of the SSFCL ensures its satisfactory control performance and current-limiting effectiveness during its normal starting, operation or on accident current-limiting condition. The problems of the SSFCL on dual-side power system with over-long starting time and the anti-interference of its control device are analyzed. The effective countermeasures are also proposed.