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In medical field there is a growing need for development of software to be used for practical applications rather than only in research field. Doctors need not only to know the main symptoms in a patient but also the other factors in life and surrounding that lead to disease in the patient. For collecting all the necessary information about the patient the doctors needs to spend a lot of time with the patient asking necessary questions to get the important details. The doctor needs to document all the data for further use and needs to keep track of all the patient details and remedies. The proposed system is intended to develop an Intelligent System using data mining modeling technique, namely, Naive Bayes. It is implemented as Java application in which user answers the predefined questions. It retrieves hidden data from stored database and compares the user values with trained data set. It can answer complex queries for diagnosing heart disease and thus assist healthcare practitioners to make intelligent clinical decisions which traditional decision support systems cannot.

This paper derives all necessary equations which require for modeling of PMSG. The generator model is established in the dq-synchronous rotating reference frame. A MATLAB/Simulink simulation has been developed using 8.5 KW permanent magnet synchronous generator. In this paper maximum power point tracking (MPPT) controller for variable speed wind turbine is proposed. Maximum power which a wind turbine can deliver at a certain wind speed depends upon certain optimum value of speed at which the shaft rotates. Only at optimum speed we can have efficient use of equipment and available energy source. In order to control a wind turbine with Permanent Magnet Synchronous Generator (PMSG), a set of full-scale back-to-back voltage converter is used. The back-to-back converters are connected through a DC-link capacitor. The capacitor decouples the two converters, allowing separate controls being applied to each converter for simplicity. The control systems are separated into generator-side controller and grid-side controller. In this arrangement, the generator-side converter controls the operation of the generator and the network-side converter controls the DC link voltage by exporting active power to the network.

Wind turbine generator has been popular in the area of renewable energy source. Wind Turbine generator has shown the biggest growth in the past 10 years compared to other renewable sources. Direct drive generator using Permanent Magnet Synchronous Generator (PMSG) is used now a days as variable speed wind turbine generator. PMSG is suitable for the application due to its high efficiency, high torque-to size ratio, and low maintenance requirement. This paper derives all necessary equations which require for modeling of PMSG. The generator model is established in the dq-synchronous rotating reference frame. In this Paper MATLAB/Simulink simulation has been developed using 6 KW permanent magnet synchronous Generator. In order to verify the presented model simulations with MATLAB/Simulink software have been conducted. Simulation results prove the validity of the model.