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Method for verifying consistence of designed input file and variable information database of DCS (Distributed Control System) of nuclear power station
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A DCS system, design input technology, applied in electrical digital data processing, data processing applications, special data processing applications, etc., can solve the problems of long time and low efficiency of point information query.
Active Publication Date: 2014-12-10
CHINA TECHENERGY +1
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[0011] In order to solve the problem of inefficient and time-consuming query of the point information in the design input file by the DCS variable information database of the nuclear power plant in the prior art, the present invention aims at the characteristics of point information consistency check and test in the DCS variable information database of the nuclear power plant, An optimization method for automatic data query and comparison by computer is proposed, which can quickly query data, greatly improve the speed of data search and comparison, shorten test time, improve test efficiency, and realize the efficiency and accuracy of the entire test process
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example 1
[0120] Example 1, for point information on feedwater flow for LP heaters see attached Figure 4 , as shown in serial number 2
[0121] Roll call (PN): PY3ABP001MD
[0122] Point description (DS): LP HEATERS FEEDWATER FLOW, Chinese meaning is "feedwater flow of low pressure heater"
[0123] Unit (UT): t / h is the flow unit "ton / hour"
[0124] Range lower limit (MD): 0 means the minimum flow rate is 0 tons / hour
[0125] Upper limit of range (MU): 5000 means the maximum flow rate is 5000 tons / hour
[0126] Default value (Default): the last valid value is the "valid value of the previous cycle" as the default value
[0127] Signal type (TP): 4 ~ 20mA, that is, the flow signal will be converted into a 4 ~ 20mA current signal by DCS and then processed.
example 2
[0128] Example 2, for the point information of the inlet pressure of the equipment ABP301RE, see attached Figure 4 , as shown in serial number 4
[0129] Roll call (PN): PY3ABP001MP
[0130] Point description (DS): ABP301RE B.STM ILET PRES. The Chinese meaning is "the pressure at the water vapor inlet of the heat exchanger numbered ABP301"
[0131] Unit (UT): MPa is the pressure unit "MPa"
[0132] Range lower limit (MD): 0 means the minimum pressure is 0 MPa
[0133] Upper limit of range (MU): 0.25, that is, the maximum pressure is 0.25 MPa
[0134] Default value (Default): the last valid value is the "valid value of the previous cycle" as the default value
[0135] Signal type (TP): 4 ~ 20mA, that is, the flow signal will be converted into a 4 ~ 20mA current signal by DCS and then processed.
example 3
[0136] Example 3, for point information on the internal temperature of the device ABP101RE, see attached Figure 4 Shown, ordinal 5 data points
[0137] Roll call (PN): PY3ABP001MT
[0138] Point description (DS): ABP101RE F.W ILET TEMP. The Chinese meaning is "the temperature at the feed water inlet of the heat exchanger numbered ABP101"
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Abstract
The invention provides a method for verifying consistence of a designed input file and a variable information database of a DCS (Distributed Control System) of nuclear powerstation. The method comprises the steps of: searching in the variable information database according to point information of the designed input file, and storing the searching result in a data search comparing chart, then comparing the designed point information with the point information of the database in the data search comparing chart. In the scheme provided by the invention, the data search is carried out according to the data type, and multiple data can be inquired per each time. Meanwhile, the data search range is decreased progressively in the database according to the SHEET page, and the search of the data is separated from the comparing working region; that is to say, firstly the search of all the data is carried out, the searched data and the designed input data are distributed in the same EXCEL SHEET table, and then the consistence comparison work of the data is carried out uniformly. Therefore, the data searching and comparing time can be saved efficiently.
Description
technical field [0001] The invention belongs to the technical field based on nuclear powerplant DCS system design, and in particular relates to a method for quickly querying and comparing a large amount of data of a nuclear powerplant DCS variable information database and design input files. Background technique [0002] In the field of nuclear power plantdistributed control system DCS, the variable information database is an important part. It is in the form of an EXCEL file containing multiple SHEET pages. In the variable information database, each variable data is defined as a " Variable point", the information of the variable point is composed of several features of the point, these features are called "point items", there are multiple point items, among them, the point items marked as point names (hereinafter referred to as point names directly), It is the unique identification of this "variable point" to distinguish it from other "variable points"; the points in the...
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