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New laws offer nuclear industry incentives for existing power plant uprates
This year, the U.S. nuclear industry received a much-needed economic boost that could help preserve operating nuclear power plants and incentivize upgrades that extend their lifespan and power output.
Signed into law in 2022, the Inflation Reduction Act offers production tax credits (PTCs) for existing nuclear power plants and either PTCs or investment tax credits (ITCs) for new carbon-free generation. These credits could make power uprates—increasing the maximum power level at which a commercial plant may operate—a much more appealing option for utilities.
T. M. Tsai , H. P. Chou
Nuclear Science and Engineering | Volume 114 | Number 2 | June 1993 | Pages 141-148
Technical Paper | doi.org/10.13182/NSE93-A24026
Articles are hosted by Taylor and Francis Online.
A sensor fault detection method combining the single sensor parity relation (SSPR) with the likelihood ratio test (LRT) is described. The SSPR is in an algebraic form that correlates system dynamics with multistep readings of a sensor and is therefore fast running. The scheme can easily be duplicated for each sensor of interest and thus has advantages for modular design and parallel processing. In the fault detection architecture, residuals generated from the SSPR module are examined by an LRT module for failure signatures. The likelihood ratios are maximized according to the fault occurrence time to improve detection sensitivity and are then calculated using a recursive form to match the speed of the SSPR module. The proposed concept is demonstrated with hypothetical sensor failures for pressurizer instruments. Comparisons with the Kalman filtering technique and the sequential probability ratio test are discussed.