Coordinated control system of thermal power unit is a time-varying, uncertainties, strong-coupling and multi-variable control system. Its control quality is a key to improve the thermal processes automation and achieve power system automatic generation control. In this paper, the non-linear mathematical models of drum-boiler turbine unit and once-through boiler unit are given. Analysis of the conventional boiler feed-forward control system and based on the thought that dynamic energy and static energy separation, the boiler BP neural network PID control feed-forward controller is structured and applied. Simulation results show that not only load response and anti-interference ability are improved, but also dynamic overshoot greatly reduce. It is conducive to the safety, economy and stability of generator unit.
Application of BP Neural Network PID Control to Coordinated Control System Based on Balance Thought
Adv.Intel.,Soft Computing
2012-01-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
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