基于PCHD模型的感应电机变阻尼无源性控制策略

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摘要提出一种基于端口受控耗散哈密顿（PCHD）模型的感应电机变阻尼无源性控制策略,研究了感应电机的建模与速度控制问题。基于PCHD系统原理,将感应电机看作是二端口的能量变换装置,建立了感应电机的PCHD系统数学模型。利用互联和阻尼配置的无源性控制方法,给出感应电机的PCHD系统的反馈镇定,设计了感应电机的转矩与转速控制器,推导出定子电压控制量。为了削弱系统到达稳态期间的速度波动,采用变阻尼控制方法,变阻尼由二阶微分跟踪器实现,可以使动态性能更加优化,转矩和转速跟踪效果更好。仿真和实验结果验证了基于PCHD模型的感应电机变阻尼无源性控制策略的正确性。

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	尹忠刚
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	刘静

关键词 ：变阻尼, 二阶微分跟踪器, 感应电机, 无源性控制

Abstract：A novel vector control method for induction motors based on port-controlled Hamiltonian with dissipation(PCHD) model with flexible damping is proposed in this paper. The modeling and speed control of induction motor is presented. Based on PCHD systems, induction motor can be viewed as a two-port energy-transformation device, and a nonlinear mathematical model of induction motor is established. Using the passivity-based control method of interconnection and damping assignment, the feedback stabilization of induction motor system is given, the torque and speed controller of induction motor is then designed, and the required reference stator voltages are deduced. In order to overcome the speed fluctuation in the period of arriving stable state, a new control strategy is presented in, where the flexible damping is added into the controller. Flexible damping can be achieved by using second order tracking differentiator(SOTD) to restrain the fluctuation. The strategy can make dynamic performance more optimum and torque and speed tracking effect better. The experimental results verify the effectiveness of the algorithm.

Key words： Flexible damping second order tracking differentiator induction motor passivity- based control

收稿日期: 2013-02-19 出版日期: 2014-11-05

PACS:

TM343

基金资助:国家自然科学基金（51307139）,高等学校博士学科点专项科研基金（20106118120003）和电力设备电气绝缘国家重点实验室资助项目（EIPE13206）

作者简介: 尹忠刚男,1982年生,博士,副教授,主要研究方向为高性能交流调速系统与电力电子变换器数字化控制；丁虎晨男,1987年生,硕士研究生,研究方向为高性能变频调速系统控制策略研究。

引用本文:

尹忠刚, 丁虎晨, 钟彦儒, 刘静. 基于PCHD模型的感应电机变阻尼无源性控制策略[J]. 电工技术学报, 2014, 29(8): 70-80. Yin Zhonggang, Ding Huchen, Zhong Yanru, Liu Jing. Passivity-Based Control Method of Induction Motors Based on Port-Controlled Hamiltonian with Dissipation (PCHD) Model with Flexible Damping. Transactions of China Electrotechnical Society, 2014, 29(8): 70-80.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2014/V29/I8/70

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