基于高耦合逆变补偿的水利工程电气控制系统设计

High coupling inverting compensation-based design of electric control system for water conservancy project

嵌入式Linux内核环境下进行电气的控制系统优化设计,可以提高电气的集成控制性能,针对当前的电气控制系统耦合控制能力不佳的问题,提出并设计一种基于鲁棒性变结构PID和高耦合逆变补偿的电气控制系统。首先进行了电气控制系统总体设计构架和功能模块描述,采用低功耗的STM32F101xx作为核心控制芯片进行控制系统的硬件设计,包括AD模块、驱动模块、执行器模块和高压调节模块等。对电气控制系统的功能指标进行分析,采用鲁棒性变结构PID控制算法进行电气控制系统的高耦合逆变补偿,在程序加载模块进行控制算法加载,完成基于高耦合逆变补偿的水利工程电气控制系统设计。系统调试结果表明,该系统具有较好的电气智能化控制性能,对基线漂移和高压过载等失真的补偿性较好,负载能力得到提高。相较于传统系统,该系统的控制精度较高,最高控制误差不超过4.0%,且控制耗时较低。

To solve the problem that the coupling control effect of current electrical control system is not ideal,an electrical control system based on robust variable structure PID and high coupling inverter compensation is designed.Aiming at the problem that the coupling control capacity of the electric control system is not so ideal,a Robust variable structure PID and high coupling inverting compensation-based electric control system is proposed and designed herein.At first,the general design architecture and the function modules of the electric control system are described,and then the hardware design of the control system is made through taking STM32F101xx with low power consumption as the core control chip,which consists of AD module,driver module,actuator module,high voltage regulating module,etc.The function indexes of the electric control system are analyzed,while the high coupling compensation of the electric control system is made by means of the Robust variable structure PID control algorithm,and then the control algorithm is loaded into the program loading module to complete the design of the high-coupling inverting compensation-based electrical control system of water conservancy project.The system debugging result shows that the system has a better electrical intelligent control performance with a better compensating property for the distortions such as baseline drift,high-voltage overload,etc.,thus the loading capacity is enhanced.Compared with the relevant conventional systems,the accuracy of this system is higher with the maximum control error below 4.0%,while the control time consumption is lower as well.