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Interior permanent magnet synchronous motors (IPMSMs) are often used in applications that demand high performance. Interest has increased in designing IPMSMs in the enlargement high-efficiency operation area. Designing to meet such specifications can be difficult and time consuming. Combining a genetic algorithm (GA) with the coarse mesh finite element method (FEM) can automate the process and reduce...
Interior permanent magnet synchronous motors (IPMSMs) are widely used in many applications because of their higher performance. In recent years, there has been an increasing interest in motor design technologies that can realize required specifications. Therefore, it is important to shorten the design period and generalize the design method. In the present paper, the design period is shortened using...
Interior permanent magnet synchronous motors (IPMSMs) are controlled by either a rotor position sensor or a sensorless control method, which enables highly efficient operation. The voltage-current phase difference control method is a sensorless control method that offers low cost and a simple control system, which is based on V/f control. However, speed ripple occurs under a fluctuating load because...
Interior permanent magnet synchronous motors (IPMSMs) are widely utilized as traction motors. The permanent magnets (PMs) used in IPMSMs are an important factor; thus, high-coercivity PMs with lesser rare-earth elements are in development. This paper investigates the performance of IPMSMs typically used in automotive applications that were modified to contain a novel magnet model (NMM). Rotor models...
This paper proposes speed ripple reduction for an interior permanent-magnet synchronous motor (IPMSM) controlling phase difference between the armature voltage and current. The IPMSMs are controlled with a rotor position sensor or by a sensorless control method. Voltage-current phase difference control is one of the sensorless drives with low cost and simple structure. However, if the load varies...
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