摘要逆变电源系统结构特殊且具有较强的非线性和参数时变性, 尤其在非线性负载下采用常规控制难以获得理想的控制效果。相对于普通PID控制,模糊自适应PID控制具有精度高,稳定性好,鲁棒性强的优点。67758
本文介绍了逆变电源的发展状况,逆变电源的几种新型控制技术。并且提出了一种基于模糊自适应PID 控制策略的逆变电源控制方案, 该方案将模糊控制与PID 控制的优势相结合, 实时对PID 参数进行在线调整。通过saber和Matlab/ Simulink 对系统进行了仿真和验证, 并与常规PID 控制结果进行了对比和分析。实验结果表明, 模糊自适应PID 控制很好地实现了控制目的, 并且提高了输出波形的质量, 控制品质明显优于常规PID 控制方法。
毕业论文关键词: 逆变电源; PID控制; 模糊PID
毕业设计说明书(论文)外文摘要
Title: New control technology in the application of inverter
Abstract:The control system of inverters has character of nonlinear and time varying and so on, especially in the non-linear load control is difficult to obtain using conventional ideal control effect. Compared to ordinary PID control, fuzzy adaptive PID control with high accuracy, good stability, strong robustness advantages.
This article describes the development of power inverter, power inverter several new control technologies. And proposes a strategy based on fuzzy adaptive PID control inverter power control scheme that the fuzzy control and PID control combines the advantages of real-time adjustment of the PID parameters online. By saber and Matlab / Simulink for system simulation and verification, and with conventional PID control results were compared and analyzed. Experimental results show that the fuzzy adaptive PID control to achieve a good control purposes, and to improve the quality of the output waveform, quality control than conventional PID control methods.
Key words: Power inverter; PID control; fuzzy PID
目次
1 绪 论 1
1.1 课题背景 1
1.2.1 逆变器的发展与现状 1
1.2.2 逆变器的发展趋势 2
1.3 逆变器控制技术的发展与现状 3
1.3.1 传统的控制方式与发展方向 3
1.3.2 逆变器的数字控制策略 4
1.4 课题研究的内容 7
2 逆变器控制策略的研究 8
2.1 逆变器的数学模型 8
2.2 PID控制 9
2.2.1 PID控制原理 9
2.2.2 数字PID控制算法 10
2.3 模糊PID控制 12
2.3.1 模糊控制的特点及工作原理 12
2.3.2 模糊控制器的设计方法 14
2.3.3 模糊算法的实现 15
2.3.4 模糊PID控制器的原理和设计方法 16
2.3.5 模糊PID控制器设计