比例电磁阀复合控制方法研究

发布时间：2018-06-11 15:04

本文选题：比例电磁阀 + 流量滞环　；参考：《控制工程》2017年09期

【摘要】：比例电磁阀流量滞环非线性严重影响系统的控制性能和稳定性,为解决这一问题,利用非线性控制方法,建立了比例电磁阀流量滞环模型,引入粒子群优化(PSO)算法对模型参数进行优化。仿真实验结果表明,利用粒子群优化算法优化后的流量滞环模型与传统控制相比具有良好的拟合度。该控制方法中提出了基于逆模型前馈补偿控制与电流反馈PWM复合控制方案,利用STM32微控制器实现比例电磁阀复合控制器设计。实验结果表明,该控制方案可以有效改善比例电磁阀滞环非线性,提高比例电磁阀的控制性能,进而扩大比例电磁阀的应用范围。
[Abstract]:The nonlinear flow hysteresis of proportional solenoid valve seriously affects the control performance and stability of the system. In order to solve this problem, a flow hysteresis model of proportional solenoid valve is established by using nonlinear control method. Particle swarm optimization (PSO) algorithm is introduced to optimize the model parameters. The simulation results show that the flow hysteresis model optimized by particle swarm optimization has a good fit compared with the traditional control. In this control method, a compound control scheme based on inverse model feedforward compensation and current feedback PWM is proposed. The proportional solenoid valve composite controller is designed by using STM32 microcontroller. The experimental results show that the control scheme can effectively improve the hysteresis nonlinearity of proportional solenoid valve, improve the control performance of proportional solenoid valve, and then expand the scope of application of proportional solenoid valve.
【作者单位】：沈阳工业大学软件学院;沈阳工业大学信息科学与工程学院;
【分类号】：TH137.52;TP273

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