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机构地区:[1]太原理工大学电气与动力学院,山西太原030024
出 处:《煤矿机电》2003年第2期1-6,共6页Colliery Mechanical & Electrical Technology
摘 要:本文在分析井下异步电动机保护系统的基础上,以AT89C52单片机为中央控制单元,研制了新型矿用隔爆型磁力起动器测控系统。该系统能自动转换控制方式,具有短路、过载、断相、过压、欠压、漏电及过热等保护功能,可记录并显示系统的工作和故障状态。本文重点阐述了测控系统的硬件构成、软件框图和系统抗干扰措施,设计了性能优良的本质安全先导电路。经过模拟实验表明,该系统各项性能指标均达到了设计要求,效果良好。Based on the research of underground asynchronous motor protective system,a new measurement and control system of flameproof magnetic starter is developed by using AT89C52SCM as the central control unit.The system is provided with a number of protective characteristics such as short circuit protection,over-load protection,open-phase protection,over voltage protection,under voltage protection,leakage protection and overheat protection.It automatically converses the control modes and records and displays the operation condi-tions and fault parameters of the system.Much more attention is paid to hardware components,software block diagrams and anti-interference methods in this paper.In addition,an intrinsically safe pilot circuit with good performance is also designed.The simulated experiment results show that the system has performance indexes which reach the design requirements and achieve good results.
关 键 词:异步电动机 保护系统 单片机 矿用隔爆型磁力起动器 抗干扰措施
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