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An electric motor that rotates and has prominent poles on both the stator and the rotor is known as a switched resistance (SR) motor. One pole is wrapped with each of the coils that make up the stator winding. In order to reduce eddy-current losses, the rotor is made of lamination.
For a range of coal mining machinery, including cutters, conveyors, and coal ploughs, switched reluctance motors are particularly well suited. With this kind of motor, the beginning torque can reach 150 percent while the starting current is only 30% of the rated current.
The Global 3-Phase Switched Reluctance Motor Market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
A sensor less 3-Phase Switched Reluctance (SR) motor control is described in this application as being developed. The specialized motor control devices 56F80x and 56F8300 from Freescale serve as its foundation. Utilizing Processor Expert TM is a feature of the program me design (PE).
SR motors are becoming more and more common among variable-speed actuators. This is as a result of their fault-tolerant power stage design, simple, low-cost construction, and high level of performance over a broad speed range. They also lack magnets and rotor winding.
SR drives are a competitive option to other widely used motors like AC, BLDC, PM Synchronous, or universal motors for many applications due to their accessibility and the reasonably priced electronic components required. A sensor less speed closed-loop SR drive with a flux coupling position estimation-based inner current loop is used in this application.
The performance of the drive is greatly impacted by the phase resistance’s temperature dependency, which changes during motor operation and causes errors in position estimation.
As a result, a new algorithm for real-time phase resistance estimation is included. This application shows how to use a sensor less SR motor drive and serves as an illustration of how to build a system using a hybrid Freescale controller with PE support.
It also demonstrates how to use the specific motor control tools that are part of PE. The application aids in the beginning of the creation of the sensor less SR drive specifically made for the intended application.
