Global DC Drives Market Share, Key Trends, Strategies, Technology, Analysis & Forecasts 2015-2019
A drive is an adjustable device that regulates the speed and torque of motors by varying electrical frequency and voltage. Drives are broadly classified into two: AC drives and DC drives. AC drives are used to control the speed of AC electric motors while DC drives are used to control the speed of DC electric motors. DC drives consist of thyristor-based controllers that help in controlling the speed/torque of DC motors. Armature control and field control techniques are used to control speed in DC drives. DC drives are preferred in locomotive applications because of high-power thyristors and simple design.
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