【摘要】 分频输电是为大规模、远距离输电提出的一种输电方式 ,它可以提高输电线路的输送功率。该文针对分频输电系统非线性的特点 ,基于直接大范围线性化的方法 ,提出了分频输电系统中励磁和倍频变压器原边并联补偿电容协调非线性控制器的设计方法。应用该方法设计的非线性控制器不仅可以提高分频输电系统的稳定性 ,而且减小了发电机和倍频变压器原边的电压波动 ,保证了倍频变压器工作点的稳定。计算机仿真表明 ,该种控制器与仅考虑稳定性而设计的非线性励磁控制器相比较 ,不仅有效的提高了分频输电系统的稳定性 ,而且满足了倍频变压器原边电压的控制要求。更多还原

【Abstract】 The paper proposed a nonlinear excitation controller coordinated with the compensative capacitor of the Frequency Tripler for Fractional Frequency Tr ansmission System (FFTS). The nonlinear cooperative controller, which is designe d basing on the theory of direct linearization over wide range, can not only enh ance the stability of FFTS, but also decrease the fluctuation of generator volta ge and the Frequency Tripler voltage, and assure the stability of working point of the Frequency Tripler. Simulation results show that the nonlinear cooperative controller is more suitable for FFTS than conventional nonlinear excitation con troller.更多还原