质子交换膜燃料电池的自抗扰控制研究
发布时间：2018-09-14 08:28
【摘要】：随着工业革命的进行,人们对于物资需求的逐步提升,人类文明社会对于能源的需求在不断扩张,同时环境保护也备受关注,在权衡经济工业等的发展和环境保护的情况下,安全、有效、清洁式无污染的能源是未来发展不可或缺的。质子交换膜燃料电池(PEMFC)作为一种新型清洁能源,对其的研究一直在进行,而对于PEMFC的控制方法研究也至关重要。对于这种具有高度非线性和不确定性的系统,若能将控制问题转换为抗扰问题,则控制起来会更加有效。本研究课题的内容如下所示：1.根据质子交换膜燃料电池的电功率动态模型和温度动态模型对PEMFC的工作原理和电池特性进行分析,尤其对于PEMFC的温度特性,通过对电堆温度控制会造成影响的几个因素分析对于电池温度特性的影响。2.对经典自抗扰控制技术进行了分析,由于经典自抗扰控制技术中的非线性反馈组合部分具有一定的局限性,对于控制器的应用范围和抗扰能力有一定限制。考虑到这方面,在复合控制的思想上,将滑模控制中的切换律的概念引入到自抗扰控制器中,提出了滑模自抗扰复合控制技术,并通过一个不确定二阶系统的实例仿真对控制器的有效性和鲁棒性进行验证。3.质子交换膜燃料电池(PEMFC)是本课题研究的对象,在对PEMFC系统进行扩张状态的重构后,将控制问题转换为抗扰问题。针对PEMFC系统进行滑模自抗扰复合控制器的设计,对PEMFC温度进行控制。在控制过程中,为验证所提出的控制器的抗扰能力,进行了外部扰动、内部不确定性、系统噪声等的测试。同时,为验证本课题提出的控制器具有更强的抗扰能力,具有相同参数的经典自抗扰控制器也用于对PEMFC的控制。本课题的研究为这类具有不确定性和未知扰动的控制过程提供了一个新的控制策略研究方向。
[Abstract]:With the development of the industrial revolution and the gradual improvement of the material demand, the demand for energy is expanding continuously in the human civilization society, and the environmental protection is also being paid close attention to. Under the condition of weighing the development of economy, industry, and environmental protection, Safe, efficient and clean energy is indispensable for future development. As a new clean energy, proton exchange membrane fuel cell (PEMFC) has been studied all the time, and it is also very important to study the control method of PEMFC. For such a system with high nonlinearity and uncertainty, if the control problem can be transformed into a disturbance rejection problem, the control will be more effective. The contents of this research are as follows: 1. According to the dynamic model of electric power and temperature of proton exchange membrane fuel cell (PEMFC), the working principle and characteristics of PEMFC are analyzed, especially the temperature characteristic of PEMFC. The influence of several factors on the temperature characteristics of the battery is analyzed by means of several factors that will affect the temperature control of the stack. The classical ADRC technique is analyzed. Because of the limitation of the nonlinear feedback combination part in the classical ADRC control technique, the application scope and the immunity ability of the controller are limited to a certain extent. Considering this aspect, the concept of switching law in sliding mode control is introduced into the active disturbance rejection controller, and the sliding mode active disturbance rejection compound control technique is proposed. The effectiveness and robustness of the controller are verified by an example of an uncertain second order system. Proton exchange membrane fuel cell (PEMFC) is the object of this paper. After reconstructing the PEMFC system, the control problem is transformed into the disturbance rejection problem. The sliding mode active disturbance rejection controller is designed for PEMFC system and the temperature of PEMFC is controlled. In order to verify the robustness of the proposed controller, external disturbances, internal uncertainties and system noise are tested in the control process. At the same time, to verify that the proposed controller has stronger immunity, the classical ADRC with the same parameters is also used to control the PEMFC. The research in this paper provides a new control strategy research direction for this kind of control process with uncertainty and unknown disturbance.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM911.4
本文编号：2242134
[Abstract]:With the development of the industrial revolution and the gradual improvement of the material demand, the demand for energy is expanding continuously in the human civilization society, and the environmental protection is also being paid close attention to. Under the condition of weighing the development of economy, industry, and environmental protection, Safe, efficient and clean energy is indispensable for future development. As a new clean energy, proton exchange membrane fuel cell (PEMFC) has been studied all the time, and it is also very important to study the control method of PEMFC. For such a system with high nonlinearity and uncertainty, if the control problem can be transformed into a disturbance rejection problem, the control will be more effective. The contents of this research are as follows: 1. According to the dynamic model of electric power and temperature of proton exchange membrane fuel cell (PEMFC), the working principle and characteristics of PEMFC are analyzed, especially the temperature characteristic of PEMFC. The influence of several factors on the temperature characteristics of the battery is analyzed by means of several factors that will affect the temperature control of the stack. The classical ADRC technique is analyzed. Because of the limitation of the nonlinear feedback combination part in the classical ADRC control technique, the application scope and the immunity ability of the controller are limited to a certain extent. Considering this aspect, the concept of switching law in sliding mode control is introduced into the active disturbance rejection controller, and the sliding mode active disturbance rejection compound control technique is proposed. The effectiveness and robustness of the controller are verified by an example of an uncertain second order system. Proton exchange membrane fuel cell (PEMFC) is the object of this paper. After reconstructing the PEMFC system, the control problem is transformed into the disturbance rejection problem. The sliding mode active disturbance rejection controller is designed for PEMFC system and the temperature of PEMFC is controlled. In order to verify the robustness of the proposed controller, external disturbances, internal uncertainties and system noise are tested in the control process. At the same time, to verify that the proposed controller has stronger immunity, the classical ADRC with the same parameters is also used to control the PEMFC. The research in this paper provides a new control strategy research direction for this kind of control process with uncertainty and unknown disturbance.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM911.4
【参考文献】
相关期刊论文 前2条
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2 韩京清;利用非线性特性改进PID控制律[J];信息与控制;1995年06期
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