摘要
文章分析了火电机组协调控制系统前馈控制的重要性,指出了前馈控制逻辑设计面临的主要难点,包括复杂工况下的控制策略优化、高维参数下的模型辨识、多时间尺度下的控制协调和强非线性系统的算法设计等.在此基础上,提出了前馈控制逻辑设计的关键点,包括基于机理分析的控制策略优化、基于数据驱动的模型辨识方法、基于多时间尺度分解的控制器协调、基于非线性控制理论的控制算法设计、基于实时优化的参数整定和基于硬件在环的控制系统测试等.通过合理设计火电机组协调控制系统前馈控制逻辑,可以有效提高系统的动态性能和鲁棒性,为保障电力系统安全稳定运行提供有力支撑.
Abstract
This paper analyzes the importance of feedforward control for thermal power unit coordination control system,and points out the main difficulties in feedforward control logic design,including control strategy optimization under complex working conditions,model identification under high dimensional parameters,control coordination under multiple time scales and algorithm design of strong nonlinear system.On this basis,the key points of feedforward control logic design are proposed,including control strategy optimization based on mechanism analysis,data-driven model identification method,controller coordination based on multi-time scale decomposition,control algorithm design based on nonlinear control theory,parameter tuning based on real-time optimization and hardware-in-the-loop control system testing.Through rational design of feedforward control logic of thermal power unit coordination control system,it can effectively improve the dynamic performance and robustness of the system,and provide strong support for ensuring the safe and stable operation of the power system.
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