【摘要】 以提高锌电解供电系统的自动化程度、实现网络控制为目的,在分析了系统总体结构和控制原理的基础上,重点讨论了ptp通讯在系统中的研究与应用;ptp通讯网络以S7-300PLC为主站,以两台晶闸管数字触发器为从站,实现电流给定和触发角反馈等信号的传输,其通讯协议简单,开发成本低,与Profibus网一道组成的控制网抗干扰能力强,可靠性高,有力地保证了锌电解供电优化系统安全运行,为锌电解提高整流效率、节约电能提供了保障。更多还原

【Abstract】 The purpose is to advance the automation level of the system for power_supply of zinc electrolyte,and to implement network controlling.The whole structure and work principle of the system are analyzed.Then,the research and application of ptp communication in the system are mainly discussed.Ptp net is composed by S7-300PLC as master and two digital thyristor triggers as slavers,to transmit the current given signal,trigger angle signal,and so on.It is noted for its simple protocol and lower developing cost.And the control network composed by ptp and Profibus is seized of high anti-jamming capability and high reliability.This guarantees the safe operation of the optimized system for power supply of zinc electrolyte,also insures the advancing of the efficiency of zinc electrolyte,and saves energy.更多还原