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In the context of electric motors, Permanent Magnet Synchronous Motors (PMSMs) are a highly efficient type of motor that's commonly used in various applications. One of the key components of PMSMs is the speed control system, which plays a crucial role in the proper functioning of the motor. The speed control of PMSMs can be achieved using different methods, such as Field Oriented Control (FOC) or Direct Torque Control (DTC), each with its advantages and disadvantages. Depending on the specific application requirements, the appropriate speed control method needs to be carefully selected to ensure optimal performance. Therefore, it is important to have a good understanding of the speed control of PMSMs and the different methods used to achieve it.