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综合分析了聚光器跟踪控制精度和综合性能对碟式太阳能发电系统的重要作用和影响,介绍了一种高精度碟式太阳能聚光器跟踪控制系统的构成和工作原理,建立了核心控制器PLC中的PID及自适应模糊PID控制的Matlab/Simulink仿真数学模型,比较分析了在单位阶跃信号和扰动作用下不同控制策略时跟踪控制系统的响应特性.结果表明:自适应模糊PID控制下碟式太阳能聚光器跟踪控制系统不仅具有良好的跟踪控制精度,也具有抗干扰能力强和稳定性能好的优点,大大提高了碟式太阳能聚光器跟踪控制系统的综合性能.
This paper analyzes synthetically the important function and influence of the tracking control accuracy and comprehensive performance of condenser on the dish solar power generation system, introduces the composition and working principle of a tracking control system of high precision dish solar concentrator, establishes the core controller PID in PLC and Matlab / Simulink simulation model based on adaptive fuzzy PID control, the response characteristics of tracking control system under different control strategies with unit step signal and disturbance are analyzed comparatively.The results show that under adaptive fuzzy PID control Disc solar concentrator tracking control system not only has a good tracking control accuracy, but also has strong anti-interference ability and good stability advantages, greatly improving the dish solar concentrator tracking control system overall performance.