摘要
为实现矿用刮板输送机平稳启动及可靠运行,基于双速电机这种中国目前刮板输送机常用的软启动装置,分析软启动控制机理,研究软启动控制策略的软硬件架构。该策略主要包括:双速电机的高低速自动切换,主控制回路的漏电保护、过电压保护、过电流保护、过载保护及断相保护。基于该控制策略研制而成的软启动器已经应用于煤矿综采工作面,应用结果表明所提出的控制策略具有可实施性及高可靠性。
To realize smooth start and reliable operation of mining scraper conveyor,based on two-speed motor which is commonly used in soft start device of current scraper conveyor,the soft start mechanism was analyzed and the hardware and software architectures of the soft-start control strategy were researched.The strategy mainly included high and low speed automatic conversion of two-speed motor,leakage protection,over-voltage protection,over-current protection,over-load protection and open-phase protection of main control loop.The soft-starter based on the control strategy is applied in comprehensive exploiting coal.The application results show that the proposed control strategy has feasible for implementation and high reliability.
出处
《河南科技大学学报(自然科学版)》
CAS
北大核心
2012年第4期14-18,5,共5页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(51006117)
中国博士后基金项目(20090461152)
关键词
刮板输送机
双速电机
软启动
控制策略
Scraper conveyor
Two-speed motor
Soft start
Control strategy