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The main advantage of the doubly fed induction generators (DFIG) over the synchronous generators is the small size converter which is located in the rotor circuit. However, this advantage can cause a problem during grid faults, because the over voltages and currents that will occur on the rotor circuit can damage the rotor side converter (RSC), if it is not over-dimensioned or protected for such high...
Direct Torque Control (DTC) is a control technique which is commonly used for speed control of induction machine drives. Compared with the available control techniques, DTC is characterized by controlling the torque and the rotor flux directly without the use of current or voltage regulators, coordinate transformation, and PWM control technique. Though its simplicity in design, it achieves good control...
This paper addresses the key technical issues related to the design of a mass producible optimized BLDC drive for high pressure and dynamic automotive pump applications. The focus is on the electromechanical design of such a device for electro hydraulic suspension systems and other high pressure automotive pumps for the new 48V automotive standard for auxiliary drives. The motor comprises a fully...
In this paper, a whole design of FPGA (Field-Programmable Gate Array) based control system for IPMSM (Interior Permanent Magnet Synchronous Motor) is presented. The IPMSM is now widespread for traction drive applications of electric vehicles (EVs) because of its high torque per volume ratio. In a DTC (Direct Torque Control) drive, flux linkage and electromagnetic torque are controlled directly and...
Knowledge of magnetic characteristics is very important for the optimal control strategies of SRM drive system [1],[2]. There are several methods to determine the magnetic characteristics such as indirect and direct methods with DC or AC voltage supplies. However, each of methods has limitations or drawbacks in determinations of computation time, inductance saturation features and an influence of...
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