消防电源故障自诊断系统研制

发布时间：2018-01-14 14:01

本文关键词：消防电源故障自诊断系统研制　出处：《长春工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：针对目前社会上频频发生的火灾事故,在关键时刻却因为消防电源出现故障导致重大人员伤亡和财产损失的现象,本课题解决消防电源的故障自诊断问题,因此在人们日常生活及各行业生产中都具有重要的现实意义。本文以消防联动应急控制系统为对象,研究具有故障自诊断功能的智能型消防联动应急系统,符合消防设备网络化、集成化、智能化、信息化的发展方向,同时弥补了传统的消防设备无法实现故障自诊断的不足,在消防安全领域具有重要的现实意义以及明显的推广和应用价值。本文基于模块化设计方法,完成了消防电源故障自诊断系统的设计,主要内容包括:针对消防电源系统的工作原理及拓扑结构进行了深入的研究,对PWM逆变技术的控制方式、输出特性进行了深入的分析,并给出了消防电源系统的整体设计方案。研究了消防电源系统瞬时故障诊断方法,给出了消防电源系统瞬时故障状态方程及故障消除方法,讨论了消防电源系统智能故障诊断技术的工作原理,同时分析了控制系统双闭环控制的工作原理,给出了改进型重复控制的控制结构,结合两种控制方法的优点,采用电压-电流双闭环控制算法组合重复控制的复合控制算法。数值仿真实验结果表明,电压-电流双闭环控制算法加重复控制的复合控制方法能够改善控制系统的动、静态指标,使系统的动态响应速度快、稳态精度提高。针对所研制的消防电源故障检测系统进行了实验研究,实验波形和实验数据分析得知,本文所设计逆变电源系统逆变输出电压具有波形正弦度好,稳态精度高,动态响应快,带载能力强等特点,能够较好地满足系统的技术性能指标要求。
[Abstract]:In view of the fire accidents that occur frequently in the society at the critical moment, but because of the fire power failure, which leads to heavy casualties and property losses, this topic solves the problem of self-diagnosis of fire power failure. Therefore, it has important practical significance in people's daily life and in the production of various industries. This paper takes the fire control system as the object, studies the intelligent fire protection emergency system with the function of fault self-diagnosis. In line with the development direction of network, integration, intelligence and information of fire fighting equipment, it makes up for the deficiency that traditional fire fighting equipment can not realize fault self-diagnosis at the same time. In the field of fire safety has important practical significance and obvious promotion and application value. Based on the modular design method, this paper completed the design of fire power source fault self-diagnosis system. The main contents are as follows: the working principle and topology of fire power supply system are studied deeply, and the control mode and output characteristic of PWM inverter technology are analyzed deeply. The whole design scheme of fire power supply system is given, the instantaneous fault diagnosis method of fire power supply system is studied, and the instantaneous fault state equation and fault elimination method of fire fighting power supply system are given. The working principle of intelligent fault diagnosis technology of fire power supply system is discussed, and the working principle of double closed loop control of control system is analyzed, and the control structure of improved repetitive control is given. Combined with the advantages of the two control methods, the double closed loop control algorithm of voltage and current is used to combine the compound control algorithm of repetitive control. The numerical simulation results show that. The compound control method of voltage and current double closed loop control algorithm and repetitive control can improve the dynamic and static indexes of the control system and make the dynamic response speed of the system fast. The steady-state precision is improved. The experimental research is carried out on the fault detection system of fire power supply, and the experimental waveform and experimental data are analyzed. The inverter output voltage of the inverter power system designed in this paper has the characteristics of good sinusoidal waveform, high steady-state precision, fast dynamic response and strong load capacity, which can meet the technical performance requirements of the system.
【学位授予单位】：长春工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP273;TN86

【相似文献】