基于DMC的汽轮发电机转速和端电压综合控制仿真研究

励磁控制系统有利于提高输电系统的微动态稳定性及改善动态品质,但效果受限于强行励磁顶值倍数与励磁电流上升速度.仅通过控制发电机的磁场,并不能大幅度提高系统的暂态稳定极限.研究表明,快速汽门调速控制能够克服励磁控制的不足.另外,汽轮发电机组的汽门调节回路和励磁调节回路之间存在交连耦合.因此,汽轮发电机组需要进行汽门与励磁相...

Simulation and research of turbogenerator's speed and terminal voltage integrated control based on DMC

Excitation control system has a significant effect for improving the micro-dynamic stability and dynamic stability of transmission system,but it is limited by rise velocity of excitation current and top value multiple of excitation force,just by controlling the generator field can not substantially improve the system transient stability.Studies have shown that fast valve control can overcome the shortage of excitation control.The steam valve regulation loop and field excitation regulation loop of a steam-turbine generator set are tightly coupled.Therefore,a steam-turbine generator set needs multivariable coordinated control of steam valve and field excitation,and the control system should exhibit adequate anti-jamming capability.In this paper,an improved dynamic matrix control is used directly in the design of general controller to decouple the speed and terminal voltage of a steam-turbine generator set,which has simple structure,excellent effect and strong anti-interference.