The PEL (Power Electronics Laboratory) carries out research in mainly four areas that all are closely related to the use of power electronics. We focus on
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Electric vehicle
Power electronic system is one of the most essential technology for electric vehicles. The power electronic systems mainly contain EV battery charging, EV battery management and motor driving. In the power electronic systems, a battery which is DC source is charged and the DC source is converted to an AC source to drive the motor effectively.
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Motor driving
In many industry areas, motors are used for factory automation. We are doing research into control of motors such as AC, DC motor and SRM, etc. there are several kinds of control method for those motors for example, flux weakening control, position/speed sensorless control, direct torque control and etc.
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Reliability
Increasing effort has been put into making power electronic systems better in terms of reliability in order to achieve high power source availability and to reduce the cost of maintenance. Fault diagnosis and tolerant control techniques are studied for IGBT, current sensor, voltage sensor and DC-link capacitor for the converter.
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Renewable energy system
In renewable energy systems, the power electronics are used both for controlling the renewable sources and interfacing with the load, which can be grid-connected or operate in stand-alone mode. The kinds of renewable energy include wind energy, solar energy and fuel cells, etc.
