The main contributions are as follows : 1 . the usual instrument faults existing in boiler water level control system are intensively investigated and described mathematically 具体包括以下几个方面: ( 1 )深入研究了汽包水位的串级三冲量控制系统,分析了汽包水位控制系统中常见的故障,并对这些故障进行了模型化研究。
The dynamic characteristic of loops for water level is analyzed especially the reason of ostensible water level . on the basis of these a routine pi controller is designed to control the water level 在分析了汽包水位回路的动态特性,特别是“虚假水位”产生的原因的基础上,设计了常规pi控制器实现锅炉汽包三冲量控制系统。
2 . a scheme of instrument fault detection in boiler water level control system is presented based on the parity space method . the processes of the fault detection of instruments of steam flow , feed - water flow , and water level are introduced , the effectiveness of the fault detection scheme presented is shown by the simulation results ( 2 )将一致空间算法( willsky - chow方法)用在汽包水位三冲量控制系统中,提出了对于汽包水位控制系统的仪表故障进行快速准确检测的新方法,仿真结果表明该方法能够快速、准确实现故障的检测。
This series of products can be applied to heating furnace , industrial kiln semiconductor stove , precise temperature control of reaction caldron , boiler heat treatment , temperature control and process control system field such as petrochemical industry light industrial machinery and so on . intelligent manipulator is matching product of pid regulator or dcs and other system , which mainly use to manual regulation under the system running or special condition and to carry out operate as a backup instrument when main machine has happened failure or maintenance . according to field regiurement 具有5个模拟输入in1 - in5 2个模拟输出out1 out2 ,一个开关量输入di , 2个开关量输出和丰富的控制算法,适用于锅炉汽包水位三冲量控制或两冲量控制并可带汽包水位压力补偿功能适用于一般工业过程中温度压力液位流量等各种过程参数的串级控制,前馈控制双路控制等,并可带后备操作器。
三: three冲量: impulse; momentum控制: control; dominate; regulate; ...冲量控制: control of impulse三冲量给水调节系统: three-impulse feed-water regulate system三冲: three-severe postpartum disorders量控制: discharge control; flow control变量控制图: control chart for variables捕捞量控制: control of the amount of fishing测量控制: measurement control; survey controlling for pc segment (geometry control plan)测量控制网: surveying control network; surveyingcontrolnetwork产量控制: output control称量控制器: weighing controller存量控制: inventory control大容量控制: mass storage control电容量控制: monitor-capacitance control定量控制: dqc definite quantity control定量控制阀: quantity control valve多变量控制: multivariable control发热量控制: control of heat generation分子量控制: molecular weight control风量控制: air weight control; blast volume control风量控制阀: volume control damper; wind control valve风量控制器: blast volume controller风量控制仪: air weight controller