电网技术Issue(11)：3133-3138,6.DOI:10.13335/j.1000-3673.pst.2014.11.028
SMES抑制电力系统功率振荡的控制策略研究
Research on Control Strategy to Suppress Power Oscillation in Power Grid by Superconducting Magnetic Energy Storage
摘要
Abstract
To implement accurate power tracking and fast compensation by superconducting magnetic energy storage (SMES) and to suppress power oscillation occurred in power grid, firstly the angle characteristic of a single-machine system including SMES is analyzed;based on the energy function of the power system and taking the system damping as the objective a mathematical model of admittance control approach, in which the voltage and its varying rate at the system-connected point of SMES are taken as the control variable, is proposed. Different from traditional control approach, in which the amplitude or the voltage phase angle is taken as control variable, the proposed admittance control approach not only relates to the voltage amplitude at the system-connected point, but also to its varying rate, thus both the sensitivity and accuracy of the response of SMES can be improved. Finally, the effect of suppressing the power oscillation occurred in single-machine infinite bus system is validated by the results of Matlab/Simulink-based simulation platform. Simulation results show that using the proposed control approach not only the power oscillation can be suppressed effectively, but also the stability of power system can be restored rapidly, hence the operation stability of power system can be enhanced.关键词
电力系统/超导磁储能/功率振荡/导纳控制/控制策略Key words
power system/SMES/power oscillation/admittance control/control strategy分类
信息技术与安全科学引用本文复制引用
刘红翠,王德林,李芸..SMES抑制电力系统功率振荡的控制策略研究[J].电网技术,2014,(11):3133-3138,6.基金项目
国家863高技术基金项目(2012AA050208)；国家自然科学基金项目(51347007,51477143)。Project Supported by the National High Technology Research and Development of China (2012AA050208) and National Natural Science Foundation of China (51347007,51477143) （2012AA050208）
