抑制次同步谐振的串补方案仿真研究

摘要

Based on IEEE SSR first benchmark model, series compensation scheme is proposed to damp subsynchronous resonance (SSR) . The control and simulation model of thyristor controlled series compensation (TCSC) to damp SSR is established in PSCAD/EMTDC. The combination scheme of TCSC and fixed series compensation is analyzed through simulation. The test signal method is adopted to analyze the performance of damping SSR from the perspective of electrical damping characteristics. Considering the damping effect as well as the cost of TCSC. The compensation scheme which can better meet both security and economy requirement of the grid is proposed.%针对IEEE次同步谐振第一标准测试系统,提出抑制次同步谐振的串补方案.利用PSCAD/EMTDC仿真软件,建立可控串补及其控制仿真模型,仿真研究得到能抑制次同步谐振的可控串补和固定串补组合方案.采用测试信号法从系统电气阻尼特性角度对这些方案抑制次同步谐振的性能进行理论分析.结合可控串补成本费用,得出了能够较好地满足电网安全性和经济性要求的方案.