Open AccessReadings correction and on-line monitoring of fluid level measuring channels at NPP
Author(s) -
A. A. Kalashnikov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1379/1/012069
Subject(s) - line (geometry) , nuclear power , computer science , process (computing) , power (physics) , reliability engineering , real time computing , engineering , mathematics , physics , geometry , quantum mechanics , operating system , ecology , biology
Presently the international program has gained momentum aimed at increasing the power of nuclear power plants (NPP) with WWER- and PWR-types reactors up to 107% and also at extending the automated process control system (APCS) repair intervals up to 18 months, which places higher requirements to the accuracy of measurements of NPP technological parameters. To enable the implementation of this program, an algorithm for processing the measurement signals has been designed that ensures high precision in readings correction of hydrostatic level sensors for all operating modes of technological equipment. Methods for correction of readings based on the developed algorithm have been implemented in Russian nuclear power industry. In addition to the correction of readings the algorithm also provides online monitoring to identify all possible defects of fluid level measuring channels including hidden defects that are not detected by existing facilities of NPP control system. The paper describes the algorithm and its application it to the tasks of readings correction and on-line monitoring of fluid level measuring channels at NPP. As result the article represents one of the first steps to methodological development of the correction reading and on-line monitoring to detection and minimization of hidden defect on NPP measuring channels of all thermotechnical parameters.