| 郭根旺,刘福才,龚正阳.气动变载荷加载系统的分数阶PID控制[J].高技术通讯(中文),2020,30(11):1161~1168 |
| 气动变载荷加载系统的分数阶PID控制 |
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| DOI：10.3772/j.issn.1002-0470.2020.11.008 |
| 中文关键词: 气动加载系统； 压力控制； 分数阶PID (FOPID)； 粒子群优化 |
| 英文关键词: pneumatic loading system, pressure control, fractional order PID (FOPID), particle swarm optimization algorithm |
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| 中文摘要: |
| 气动加载系统存在着时变、时滞、强耦合、非线性等诸多不利于控制的因素。本文针对气动加载系统各种不利于控制的因素，设计了采用分数阶PID（FOPID）控制的气动加载系统，并结合粒子群算法对FOPID控制器的参数进行了优化，实现了输出压力跟随给定波形输出的优化控制。分别对系统进行了不同输入波形的仿真和实验验证，并和传统整数阶PID控制进行了比较。实验结果表明，FOPID控制的控制精度高、响应速度快、抗干扰能力强，能够更加有效地实现输出压力跟随给定波形输出的控制。 |
| 英文摘要: |
| The aerodynamic loading system has many factors such as time variation, time delay, strong coupling and nonlinearity. In this paper, the aerodynamic loading system controlled by fractional order PID (FOPID) is designed for various factors that are not conducive to control of the pneumatic loading system, and the parameters of the FOPID controller are optimized by combining with particle swarm optimization algorithm to achieve the optimal control of output pressure following the given waveform output. The simulation and experimental verifications of different input waveforms of the system are carried out, and the results are compared with the traditional integer order PID control. Experimental results show that FOPID control has high control accuracy, fast response and strong anti-interference ability, and can control the output pressure to follow the given waveform output more effectively. |
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