The Research on Delay Suppression of Steam Turbine Overshoot Coefficient Feedforward Control
- 10.2991/ice2me-19.2019.29How to use a DOI?
- steam turbine governor; SIMULINK; DEH feedforward; frequency domain analysis
In the steam turbine speed control system, time delay of system links will affect the stability of the power grid, even worse it will result in low frequency oscillation of the power grid. Considering that the overshoot coefficient in the turbine model is equivalent to the differential action but it does not have the characteristics that the differential link’s sensitivity to the deviation. Therefore, the proportional feedforward in the traditional steam turbine model is replaced by feedforward control with overshoot coefficient. Firstly, the influence of delay on the damping characteristics of the governing system is derived by frequency domain analysis. Then, the single-machine infinite coupling model of the steam turbine with nonlinear links is established in MATLAB/SIMULINK to simulate the system, which is under frequency disturbance. It is found that the overshoot coefficient feedforward control robust much more to the delay in the system. When the delay is large, the electric power output attenuate more quickly, which is beneficial to improve the stability of the power system.
- © 2019, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Ge Jin AU - Jiangyong Qi AU - Tao Yang PY - 2019/03 DA - 2019/03 TI - The Research on Delay Suppression of Steam Turbine Overshoot Coefficient Feedforward Control BT - Proceedings of the 2019 International Conference on Electronical, Mechanical and Materials Engineering (ICE2ME 2019) PB - Atlantis Press SP - 135 EP - 138 SN - 2352-5401 UR - https://doi.org/10.2991/ice2me-19.2019.29 DO - 10.2991/ice2me-19.2019.29 ID - Jin2019/03 ER -