随着机组容量的增大，对亚临界锅炉汽包水位控制提出了更高的要求。
With the increasing of unit capacity, higher requirements were proposed to control the circulation boiler drum level.
本文介绍了用单回路数字调节器实现锅炉汽包水位控制的方案及系统的组成方法。
This paper introduces a control scheme with single loop digital regulator for the boiler drum level control and describes the composition of the system.
首先介绍了火电厂热工锅炉汽包水位控制系统以及现阶段普遍采取的报警和故障检测方法。
At first, boiler water level control system and the mean of alarm and fault detection adopted universally are introduced.
在分析常用锅炉汽包水位控制方式存在问题的基础上提出了双输入—单输出汽包水位模糊控制系统。
On the basis of analysis of conventional drum water level control mode for boiler and existing problems, a dual inputs single output fuzzy water level control system is stated.
锅炉控制系统可以分为汽包水位控制系统、蒸汽压力控制系统、炉膛负压控制系统和燃烧经济控制系统。
Boiler control system is composed of drum water level control system, stem pressure control system, hearth negative pressure control system and combustion economical control system.
仿真研究表明，这种方案使汽包水位控制系统具有较强的鲁棒性及良好的控制品质，提高了系统的动静态性能指标。
The MATLAB simulation results show that the scheme provides the control system the stronger robustness and better control quality, and improves its dynamic and static performance index.
本文阐述了在亚临界机组中汽包水位的测量方法及控制设备应用的几点见解。
This paper elaborates some opinions about steam drum water lever measuring technique and application of control device in sub-critical units.
京西电厂对此作了一系列试验，弄清了高负荷汽包水位异常的原因，对汽包水位的控制方法作了改进，取得了明显效果。
To solve this problem, the plant made a good deal of tests, and thereby found out the causes of abnormal water level and made improvements on the control method with good results.
文章介绍了一种已实际应用的电厂锅炉汽包水位三冲量串级控制方法。
This thesis explains a kind of three-element value cascade control method which is applied in the power plant to control the water level in the steam boiler.
在此基础上，提出了用模糊-PID理论实现对汽包水位进行控制的方案，并进行了系统软、硬件的设计。
On this basis, put forward the theory of fuzzy-PID to the realization of drum water level control of the program, and the system software and hardware design.
研究了汽包液位控制的难点、锅炉水位三冲量系统结构、控制策略选取及HSIC控制算法。
The control difficulty points of drum water level, three parameters system structure of boiler water level system, control strategy choosing and control algorithm of HSIC were studied.
这些都相当危险，因此控制好汽包水位是保证锅炉正常运行的重要环节。
These are quite dangerous, so the drum water level control is necessary to ensure normal operation.
利用递推最小二乘法循环调整P ID参数，并将该控制器应用于锅炉汽包水位三冲量控制系统。
Recursive least square method was used to adjust the parameters of the PID controller, which was applied in three-element control system of boiler drum level.
锅炉汽包水位的控制一直是控制领域的一个典型问题。
The water level control for the steam drum is all along a typical issue in the control domain.
汽包水位、蒸气温度、炉膛负压的控制采用模拟调节方式，其中汽包水位则选择了模糊PID调节。
The controls for drum water level, steam temperature, and negative furnace pressure are in analog control, among them, the drum water level control is under fuzzy PID control.
再次，进行了基于自整定的汽包水位无自衡过程PPI反馈控制的设计。
Thirdly, the controller design of Non-self-Regulating Process PPI feedback on the basis of the self-tuning drum water level is introduced.
高负荷时通过改变给水泵转速改变给水量，用三冲量系统控制汽包水位。
At the high load condition, change the rotating speed of steam or electricity feed water pumps to ensure the water level of the drum.
文中较为详尽地分析了汽包水位对象的动态特性和传统的控制技术以及模糊控制理论。
The dynamic characteristics of steam drum water level along with its traditional control technology and the fuzzy control theory have been detailedly analyzed in this paper.
电站锅炉汽包水位间接地反映了锅炉负荷与给水平衡的关系。是电站发电机组运行的主要控制参数之一。
Water level of boiler drum in power station is one of the main control parameters for turbine-generator unit, which reflects the balance of boiler load and feed-water indirectly.
电站锅炉汽包水位间接地反映了锅炉负荷与给水平衡的关系。是电站发电机组运行的主要控制参数之一。
Water level of boiler drum in power station is one of the main control parameters for turbine-generator unit, which reflects the balance of boiler load and feed-water indirectly.
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