Achieving a constant power speed range for PM drives
Achieving a constant power speed range for PM drives
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实现永磁驱动器的恒定功率速度范围
DOI：
10.1109/ias.1993.298901
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
G. Slemon
中科院分区：
文献类型：
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作者：
G. Slemon
作者质疑弱磁方法在许多能源效率至关重要的应用中的可取性，例如在电动汽车中。他们指出，为了使某些半导体器件的额定值增加到可接受的程度，可以使用标准PM（永磁）换向器电机和带有表面安装磁体的开关PM电机，并且可以显著降低功率损耗。以增加斩波器或逆变器开关装置的额定值为代价，对于高于基本速度的恒定功率范围内的所有操作，可以实现绕组中能量损耗的显著降低。这里提出的恒定通量方法的吸引力取决于特定应用的价值体系。在某种程度上，这取决于斩波器或逆变器相对于弱磁方法的资本成本。<<ETX>>
The authors question the desirability of the flux weakening approach for a number of applications where energy efficiency is of prime importance, such as in electric vehicles. They point out that, for an acceptable increase in the rating of some of the semiconductor devices, standard PM (permanent magnet) commutator motors and switched PM motors with surface-mounted magnets can be used, and a significant reduction in power loss can be achieved. At the cost of an increased rating of the chopper or inverter switching devices, a substantial reduction of energy loss in the windings can be achieved for all operations in the constant power range above the base speed. The attractiveness of the constant-flux approach proposed here depends on the value system of the particular application. In part, it depends on the capital cost of the chopper or inverter relative to that for the flux-weakening approach.<<ETX>>