Fetal Brain Detection and Classification

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Description

Fetal Brain Detection and Classification

A complete description of a robust controller design obtaining output voltage regulation in a high DC-gain quadratic boost converter involving a sliding-mode current loop has been presented in this paper. The results show that this control scheme has a satisfactory performance in regulating the output voltage in its overall operational range of output power and input voltage. The stability of the complete system has been treated as local by using the Routh-Hurwitz test constraining a stability region in the plane which has been subsequently used as a reference to synthesize the PI compensator using the RLS-MIGO method. The stability and robustness of the overall system have been tackled by considering the possible variations in the output load or in the input voltage as parametric uncertainty. Fetal Brain Detection and Classification


Fetal Brain Detection and Classification

EXISTING SYSTEM

  • Non-standard DC-DC converters with the capability to step up a low DC voltage to a high-voltage level are required since the canonical boost converter has severe constraints to obtain gains higher than ten. Although both transformer-based and transformer-less topologies can be proposed
  • Single-switch converters derived from the conventional boost converter, such as quadratic boost and the cubic boost converters can be attractive solutions since they can operate within a safe duty cycle range avoiding modulator saturation
  • Besides, the quadratic boost converter shows a better trade-off between efficiency and duty cycle operating range than the cubic boost converter because of the higher complexity and number of components of the cubic structure
  • The quadratic boost converter is a boost-derived converter topology, its structure has a higher complexity and so far few solutions have been reported, all existing proposals being based on pulse width modulation
  • A theoretical approach to solving the control problem by means of a linear combination of the states instead of using a cascade type multi-loop control has been recently presented

Fetal Brain Detection and Classification

PROPOSED SYSTEM

  • A complete description of a robust controller design obtaining output voltage regulation in a high DC-gain quadratic boost converter involving a sliding-mode current loop has been presented in this paper. The results show that this control scheme has a satisfactory performance in regulating the output voltage in its overall operational range of output power and input voltage. The stability of the complete system has been treated as local by using the Routh-Hurwitz test constraining a stability region in the plane which has been subsequently used as a reference to synthesize the PI compensator using the RLS-MIGO method. The stability and robustness of the overall system have been tackled by considering the possible variations in the output load or in the input voltage as parametric uncertainty. Fetal Brain Detection and Classification

Fetal Brain Detection and Classification

CIRCUIT DIAGRAM:

Fetal Brain Detection and Classification

 


Fetal Brain Detection and Classification

REFERENCE

  • F Blaabjerg, Z Chen and S B Kjaer, ?Power electronics as efficient interface in dispersed power generation systems,” IEEE Trans. Power Electron., vol. 19, no. 5, pp. 1184-1194, Sept. 2004.
  • Q Li and P Wolfs,?A review of the single-phase photovoltaic module integrated converter topologies with three different DC link configurations,” IEEE Trans. Power Electron., 3, no. 3, pp. 1320-1333, May. 2008.
  • S Lee, P Kim, and S Choi, ?High step-up soft-switched converters using voltage multiplier cells,? IEEE Trans. Power Electron., vol. 28, no. 7, pp. 3379-3387, Jul. 2013.
  • A Stupar, T Friedli, J Minib?ck and J W Kolar, ?Towards a 99% Efficient Three-Phase Buck-Type PFC Rectifier for 400-V DC Distribution Systems,? IEEE Trans. Power Electron., vol. 27, no. 4, pp. 1732-1744, Apr. 2012.
  • Rockwell Automation, ?Common DC bus: Selection guide,? Publication DRIVES-SG001B-EN-P. Sep. 2005. F H Dupont, C Rech, R Gules, and J R Pinheiro, ?Reduced-order model and control approach for the boost converter with a voltage multiplier cell,? IEEE Trans. Power Electron., vol. 28, no. 7, pp. 3395-3404, Jul. 2013.

 

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