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中文摘要：
介绍网络控制系统和基于Matlab／Simulink的仿真工具箱TrueTime，然后分析时延产生的原因、类型以及对系统稳定性的影响，最后以一个采用PD算法控制的单回路直流电机的仿真模型进行仿真。考虑干扰影响系统，仿真结果可以看出，传输时延和干扰同时存在网络控制系统中，使得系统性能变得更差，这表明干扰会产生一定的时延并且时延会降低系统的性能，使系统的稳定范围变小，甚至使系统不稳定。创新点：研究时延和干扰对系统控制性能的影响，并给出仿真曲线和仿真结论。
英文摘要：
Networked control system and an simulation TrueTime toolbox based on Matlab/Simulink are introduced. Then the causes,type and impact on system stability of time delay are analysed. Finally,the simulation model is simulated with the PD algorithm control is used to control single circuit DC - motor. Considering the interference influence system, the simulation results show that system performance become worse when transmission delay and interference coexist in networked control system. This shows that the interference produced a certain time delay and time - delay can decrease performance of the system which makes stability field of the system become smaller,and even makes system become unstable. The effect of time- delay and interference on system control performance are studied,the simulation curves and simulation conclusions are given.
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