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发明公开
CN105159250A 一种电厂DCS系统的风量和汽包水位计算方法及装置 有权

一种电厂DCS系统的风量和汽包水位计算方法及装置
摘要：
本发明涉及电厂DCS技术领域，公开了一种电厂DCS系统的风量和汽包水位计算方法及装置，该电厂DCS系统由MAX1000+PLUS系统升级到MAXDNA系统，且风量和汽包水位计算方法包括：通过所述MAX1000+PLUS系统的风量计算接口获取所述MAXDNA系统计算风量所需的参数，并在所述MAXDNA系统中计算风量；以及在所述MAXDNA系统中，采用修正后的汽包水位计算公式计算汽包水位，其中所述修正后的汽包水位计算公式是基于电厂DCS系统升级前后汽包水位修正关系不变的要求以及所述MAX1000+PLUS系统的汽包水位计算方法而被修正的。本发明实现了DCS系统升级前后风量和水位计算一致性，保障机组的安全稳定运行，且为MAX1000+PLUS升级到MAXDNA系统提供了风量和汽包水位计算的解决方法。
摘要（英）：

The invention relates to the technical field of power plant DCS, and discloses an air quantity and drum water level calculation method/device of the power plant DCS. The power plant DCS is updated from a MAX1000+PLUS system to a MAXDNA system. The air quantity and drum water level calculation method comprises that an air quantity calculation interface of the MAX1000+PLUS system is used to obtain parameters needed for air quantity calculation of the MAXDNA system, and the air quantity is calculated in the MAXDNA system; and in the MAXDNA system, the drum water level is calculated by utilizing a corrected drum water level calculation formula, and the drum water level calculation formula is corrected on the basis of the requirement that the water level correction relation before and after upgrading the DCS is not changed and the drum water level calculation method of the MAX1000+PLUS system. Air quantity and water level calculation before and after upgrading of the DCS is consistent, safe and stable operation of the set is guaranteed, and a solution is provided for air quantity and drum water level calculation when the MAX1000+PLUS system is updated to the MAXDNA system.

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