矿用宽电压自适应防爆本质安全型电源设计  

Design of mine-used adaptive wide-voltage power supply with explosion-proof and intrinsic safety

作　　者：刘亚辉[1,2] 郭江涛[1,2] 林引[1,2] 

机构地区：[1]中煤科工集团重庆研究院,重庆400039 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037

出　　处：《工矿自动化》2013年第4期36-39,共4页Journal Of Mine Automation

基　　金：中煤科工集团重庆研究院自立项目(CQ0711)

摘　　要：针对煤矿井下供电电源输入电压等级多、用电设备易受到大型设备启停影响的特点,提出了宽电压自适应防爆本质安全型电源设计方案。该电源采用智能移相调压技术和宽电压开关电源技术,通过单片机实现了85～825V宽输入电压的自动高低压段识别、自动切换、智能移相调压处理;通过脉宽调制方式将波动的电压转换为稳定的直流电压。实验结果表明,该方案很好地解决了矿井电源多电压等级、输入电压波动范围大的问题。For characteristics that power supplys in coal mine underground has multi input voltage grades and are susceptible to disturbed when big equipments are starting or stopping,the paper put forward a design scheme of adaptive wide-voltage power supply with explosion-proof and intrinsic safety.The power supply uses intelligent phase shift voltage regulating technology and wide-voltage switching power supply technology,and adopts single-chip microcomputer to realize automatic identification of high and low voltage section,automatic switch,intelligent phase shift voltage regulating of 85-825 V wide input voltage,and uses PWM to convert fluctuant voltage to a stable DC voltage.The experiment results show that the scheme solves problems of multi voltage grades and wide-voltage fluctuation of mine-used power supply.

关 键 词：矿用电源 隔爆型 本质安全型 宽电压开关电源 移相调压 自适应 

分 类 号：TD611[矿业工程—矿山机电]