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Articles by K. Balaji
Total Records ( 3 ) for K. Balaji
  K. Thufail Muhammed and K. Balaji
  The sensorless based brushless DC motor has generate continuous power supply even under the faulty situation in inverter. In order to improving the performance and continuous operation of BLDC motor, a fault control circuit is used to protect and continous power supply to motor. In this study, the fault tolerant control and soft start capabilty of BLDC motor is of great importance for its continuous operating capacity. Fault tolerant topology composed of an additional phase leg and a fault protective circuit for the high-speed low-inductance BLDC motor. The analysis covers a short circuit and overvoltage phenomenon after the switch faults, a new fault isolation and system reconfiguration method is presented. The switch is used to fault identification and isolate the faulty leg and supply the power to the additional leg. Simulation performance are verified and fault indication are using MATLAB/Simulink results and hardware implemented using embedded controller to verify about soft start, fault identification and fault tolerant performance of BLDC drive system.
  K. Balaji , G. Thirumaran , R. Arumugam , K.P. Kumaraguruvasagam and P. Anantharaman
  The present study was carried out an marine ornamental invertebrate`s resources of Parangipettai coastal waters during the month of March-August 2006, which revealed the occurrence of 28 species of marine ornamental invertebrates belonging to 4 phyla. From this the species diversity was high during the month of April and May and it was decreased in March. The most abundant species recorded during the study period was fiddler crab Uca annulipes, while sea star Ludia maculata was very least in their abundance.
  S. Chidambaram , A. John Peter , M.V. Prasanna , U. Karmegam , K. Balaji , R. Ramesh , P. Paramaguru and S. Pethaperuaml
  The study was aimed to identify and delineate the groundwater potable zone in and around Madurai region. The study area is composed of Charnockites and Khondalites of Archaean age. The information of lithology, geomorphology and land use/land cover was generated using the Resourcesat (IRS P6 LISS IV data) and Survey of India (SoI) toposheets of scale 1:50,000 and integrated them with GIS to identify the groundwater potable zones of the study area. On the basis of hydrogeomorphology, groundwater potential zones was identified and delineated. From the overlay analyses of landuse and EC, it is inferred that poor category groundwater is found in the scrub forest, current fallow, canal and scrub with land areas.
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