Optimum-seeking field weakening control of induction motor drives
Optimum-seeking field weakening control of induction motor drives
复制标题
感应电机驱动器的最优弱磁控制
DOI：
10.1049/cp:20000241
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
L. Gertmar
中科院分区：
文献类型：
--
作者：
L. Harnefors;K. Pietilainen;L. Gertmar
Kim和Sul提出的寻优(在力矩最大化的意义上)弱磁控制方案(参见IEEE Transans)。印地安人。电子，第44卷，第4期，第512-18页，1997)被进一步发展。研究了在非理想磁场取向条件下的性能，结果表明，应该使用高估而不是低估的模型漏感。提出了一种略微改进的算法，提供了更好的鲁棒性和更低的计算复杂度。为了获得良好的性能，强调了将该方案与具有抗绕组特性和增强的干扰抑制特性的电流控制器相结合的重要性。对所得到的闭环系统进行了动力学分析。这样得到的是所有控制器参数的选择规则，允许直接实施和调试。实验验证了该系统的良好性能。
The optimum-seeking (in the sense of maximisation of torque) field weakening control scheme proposed by Kim and Sul (see IEEE Trans. Ind. Electron., vol. 44, no.4, p.512-18, 1997) is developed further. The performance under imperfect field orientation conditions is investigated, and it is shown that an overestimated-rather than an under-estimated-model leakage inductance should be used. A slightly modified algorithm, which offers better robustness and reduced computational complexity, is presented. The importance, for good performance, of combining the scheme with a current controller featuring anti-windup and improved disturbance rejection is emphasized. The dynamics of the resulting closed-loop system are analysed. Thus obtained are rules for selection of all controller parameters, allowing for straightforward implementation and commissioning. Good performance of the resulting system is verified experimentally.