摘要
针对高压串补输电系统引起的次同步谐振问题（subsynchronous resonance,SSR）,重点对静止无功补偿器（SVC）抑制次同步谐振的控制策略进行了研究。分别研究了电压控制及次同步阻尼控制对SSR问题的抑制,同时在次同步阻尼控制的基础上加装滤波器来验证是否具有较好的抑制效果。仿真结果显示,采用电压控制能够很好的维持系统电压,但阻尼作用很弱,加装滤波器的抑制效果明显优于未加滤波器的次同步阻尼控制。因此,采用次同步阻尼控制加滤波器能够有效的抑制次同步谐振,使抑制效果达到最佳。
Aiming at the subsynchronous resonance（subsynchronous,resonance,SSR）caused by the HV series compensated transmission system,the control strategy of the static reactive power compensator（SVC）to suppress subsynchronous resonance is studied.The effects of voltage control and subsynchronous damping control on the SSR problem are studied respectively,and then the filter is verified on the basis of subsynchronous damping control to verify whether it has a better inhibitory effect.The simulation results show that the voltage control can maintain the system voltage very well,but the damping is very weak,and the suppression effect of the filter is better than the subsynchronous damping control without the filter.Therefore,subsynchronous damping control and filter can effectively suppress subsynchronous resonance and achieve the best suppression effect.
作者
郭昆丽
冉媛
巩晓璇
Guo Kunli;Ran Yuan;Gong Xiaoxuan(College of Electronics and Information, Xi＇ an Polytechnic Univercity, Xi＇ an 710048, China)
出处
《国外电子测量技术》
2018年第3期6-12,共7页
Foreign Electronic Measurement Technology
基金
2017年度西安工程大学研究生创新基金(CX201717)
2017年度大学生创新创业训练计划项目(2017003)资助
