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Application of BP Neural Network PID Control to Coordinated Control System Based on Balance Thought

机译:基于平衡思想的BP神经网络PID控制在协调控制系统中的应用

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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.
机译:火电机组协调控制系统是时变,不确定,强耦合和多变量的控制系统。其控制质量是改善热过程自动化并实现电力系统自动发电控制的关键。给出了鼓式汽轮机机组和直流锅炉机组的非线性数学模型。在分析常规锅炉前馈控制系统的基础上,基于动能与静能分离的思想,构造并应用了锅炉BP神经网络PID控制前馈控制器。仿真结果表明,不仅改善了负载响应和抗干扰能力,而且动态过冲大大降低。它有利于发电机组的安全,经济和稳定。

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