| 恒压供水FUZZY-PID控制研究 |
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| 引用本文： | 刘大铭,车进. 恒压供水FUZZY-PID控制研究[J]. 宁夏大学学报(自然科学版), 2008, 29(4) |
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| 作者姓名： | 刘大铭 车进 |
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| 作者单位： | 宁夏大学,物理电气信息学院,宁夏,银川,750021;宁夏大学,物理电气信息学院,宁夏,银川,750021 |
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| 基金项目： | 宁夏大学校科研和教改项目 |
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| 摘 要： | 为了提高大范围变负荷恒压供水系统的控制精度和可靠性,提出了采用多台水泵分级控制,变频调速的恒压控制策略.针对恒压供水系统具有多参数、非线性、大时滞的特点,设计了一种FUZZY-PID控制器.该控制器能够对供水系统中的水压调节进行有效控制.仿真结果和实际应用表明,采用FUZZY-PID控制器后,控制系统的响应速度加快,超调量减小,过渡过程时间大大缩短,振荡次数少,具有较强的鲁棒性和良好的稳定性.
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| 关 键 词： | 恒压供水 PLC 变频调速 模糊控制 |
Study on FUZZY-PID Control of Water Supply with Constant Pressure |
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| Liu Daming,Che Jin. Study on FUZZY-PID Control of Water Supply with Constant Pressure[J]. Journal of Ningxia University(Natural Science Edition), 2008, 29(4) |
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| Authors: | Liu Daming Che Jin |
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| Abstract: | In order to improve the precision and reliability of control system of the constant pressure water supply(CPWS) with changing load in large range,a method with multi-level control of pumps and variable-frequency speed governing is presented in the paper.A FUZZY-PID controller is designed to against the characteristics of CPWS such as multi-parameters,nonlinear,big delay,etc.The controller can effectively adjust the water pressure of the system.Simulation results and practical application indicate that the responded speed,ultra-volume,transition time and vibration frequency of control system are greatly improved by applying the fuzzy controller.System with the controller has strong robustness and good stability. |
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| Keywords: | constant pressure water supply PLC variable-frequency speed governing fuzzy control |
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