An Efficient Power Regeneration and Drive Method of an Induction Motor by Means of an Optimal Torque Derived by Variational Method
An Efficient Power Regeneration and Drive Method of an Induction Motor by Means of an Optimal Torque Derived by Variational Method
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一种利用变分法推导的最佳扭矩的感应电机高效能量再生和驱动方法
DOI：
10.1541/ieejias.128.1098
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发表时间：
2008
影响因子：
--
通讯作者：
T. Kato
中科院分区：
文献类型：
--
作者：
Kaoru Inoue;K. Ogata;T. Kato
当通过使用再生制动器降低电动机速度时，旋转的机械能被转换为电能。当再生转矩大时，相应的电流增加，使得铜损也变大。另一方面，当再生转矩小时，旋转的阻尼效果根据经过的时间而增加。为了有效地利用有限的能量，应该讨论最佳的再生转矩，以便尽可能多地再生电能。本文提出了一种利用变分法设计感应电动机再生转矩的方法，使再生电能最大化。类似地，为了使驱动能量最小化，推导出用于加速的最佳扭矩。最后，一个有效的电机驱动系统，建议的最佳扭矩和稳定的直流链路电压的电力存储系统将被提出。仿真和实验结果表明了所提出方法的有效性。
When the motor speed is reduced by using a regenerative brake, the mechanical energy of rotation is converted to the electrical energy. When the regenerative torque is large, the corresponding current increases so that the copper loss also becomes large. On the other hand, the damping effect of rotation increases according to the time elapse when the regenerative torque is small. In order to use the limited energy effectively, an optimal regenerative torque should be discussed in order to regenerate electrical energy as much as possible. This paper proposes a design methodology of a regenerative torque for an induction motor to maximize the regenerative electric energy by means of the variational method. Similarly, an optimal torque for acceleration is derived in order to minimize the energy to drive. Finally, an efficient motor drive system with the proposed optimal torque and the power storage system stabilizing the DC link voltage will be proposed. The effectiveness of the proposed methods are illustrated by both simulations and experiments.