控制系统的数学模型在控制系统的研究中有着相当重要的地位，要对系统进行仿真处理，首先应当知道系统的数学模型，然后才可以对系统进行模拟。同样，如果知道了系统的模型，才可以在此基础上设计一个合适的控制器，使得系统响应达到预期的效果，从而符合工程实际的需要。(The mathematical model of the control system plays an important role in the research of the control system. To simulate the system, we should first know the mathematical model of the system, and then we can simulate the system. Similarly, if we know the model of the system, we can design an appropriate controller on this basis, so that the response of the system can achieve the desired effect, thus meeting the needs of Engineering practice.)