Dynamic Compensation of Vanadium Self Powered Neutron Detectors for Use in Reactor Control

Comments on “Adaptive Fading Memory H Filter Design for Compensation of Delayed Components in Self Powered Flux Detectors”

“…The prompt component of response in a Vanadium SPFD is reported to be of the order of 5%-10%, (see [3] and the references cited therein). The value of 0.7% as mentioned in [1] is too small.…”

“…The modeling of Vanadium SPFD is discussed in detail in [3] along with Tustin approximation and Direct Inversion based dynamic compensators designed specifically for improving the response time characteristics of Vanadium SPFDs. Vanadium SPFD model [3] Using (15) and (16) (considering the process noise and measurement noise as zero) the variation of Vanadium SPFD output for and will be obtained as shown in Fig.…”

“…Vanadium SPFD model [3] Using (15) and (16) (considering the process noise and measurement noise as zero) the variation of Vanadium SPFD output for and will be obtained as shown in Fig. 1.…”

Dynamic compensation of Vanadium self powered neutron detectors based on Luenberger form filter

“…Its output current signal consists of two components namely prompt and delayed. The contribution of prompt signal to total current signal of Vanadium SPND is about 9% (Mishra et al, 2013). It is generated by the capture gamma reactions ðn; g; eÞ in the emitter which produces electrons through either Compton or photoelectric effect.…”

“…Park introduced an LMI-based H ∞ filter method (Park et al, 1999) to relax the limitation of the prior knowledge of noise, but there remain some difficulties in determining different tuning parameters which are used to suppress the noise gain. Recently, some antiquated dynamic compensators have been used in the Vanadium SPNDs (Mishra et al, 2013).…”