摘要
为了实现机舱自动化控制,设计了以DSP为控制核心的船舶柴油机缸套冷却水自动控制系统,并根据系统需求选用了其他相适应的硬件。船舶柴油机缸套冷却水温度是监控主机是否正常运行的一个重要热工参数,但其变化具有滞后特性,在该系统引入史密斯补偿的数字PID控制方法后,解决了水温缓慢变化滞后特性引起系统超调量大和振荡的问题,实现了对象的在线控制。
In order to implement automatic control of marine engine compartment, an automatic cooling water control system with DSP as the con- trol kernel for jacket of marine diesel engine has been designed, and other corresponding hardware is selected in accordance with the requirements of the system. The temperature of the cooling water for jacket is an important thermal parameter for monitoring normal operation of the engine, while it features time-lag characteristic. Having been introduced digital PID control with Smith compensation, the big overshoot and oscillation caused by time-lag because of the slow change of temperature are eliminated ; thus on-line control of the object can be implemented.
出处
《自动化仪表》
CAS
北大核心
2010年第2期28-30,共3页
Process Automation Instrumentation
关键词
DSP
柴油机
冷却水系统
温度控制
史密斯预估器
PID控制
滞后特性
DSP Diesel engine Cooling water system Temperature control Smith predictor PID control Time-lag characteristic
