小电感无刷直流电机不同驱动结构下的控制特性及功耗比较

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Abstract For BLDC motor with small inductance, the control characteristics and mechanical properties was compared under the PWM drive mode and pulse amplitude modulation(PAM) drive mode. PWM mode has nonlinear control characteristics, and different proportion coefficient should be used in different speed range. PAM drive mode has good linearity, all speed range consistent and the lower power consumption features. But the system structure complexity is increased relatively. The comparison indicates that under PWM and PAM drive mode the system has different performance, and lower power consumption. The actual situation should be considered, when using the two dive mode.

Key words： BLDC driving structure PAM driver PWM driver

Received: 16 March 2011 Published: 20 March 2014

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TM351

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Cite this article:

Wu Junfeng. Comparison of Power Loss and Control Characteristic Under Different Drive Structure for Small Inductance BLDC Motor[J]. Transactions of China Electrotechnical Society, 2012, 27(8): 270-275.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I8/270

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