计算物理 ›› 1998, Vol. 15 ›› Issue (3): 377-384.

• 论文 • 上一篇    

变频调速驱动系统效率最优控制方程研究

张承慧1, 谭震宇2   

  1. 1. 山东工业大学自动化系, 济南 250061;
    2. 山东工业大学电力学院, 济南 250061
  • 收稿日期:1997-03-04 修回日期:1998-01-08 出版日期:1998-05-25 发布日期:1998-05-25
  • 作者简介:张承慧,男,34,副教授,硕士,山东省济南市经十路73号
  • 基金资助:
    山东省经委重点资助课题,并获山东省科技进步二等奖

OPTIMAL EFFICIENCY CONTROL EQUATION FOR DRIVE SYSTEM WITH FREQUENCY CONTROL

Zhang Chenghui1, Tan Zhenyu2   

  1. 1. Dept. of Automation Eng., Shandong Univ. of Technology, Jinan 250061;
    2. Dept. of Elec. Power Eng., Shandong Univ. of Technology, Jinan 250061
  • Received:1997-03-04 Revised:1998-01-08 Online:1998-05-25 Published:1998-05-25

摘要: 由于异步电动机的数学模型具有高阶次、强非线性和多变量耦合的特点,所以要直接得到效率最优控制方程的清晰表达式是十分困难的。针对风机泵类、恒转矩和恒功率负载,利用电动机线性化公式导出了效率最优控制方程的表达式及其约束条件。并分别给出新方程和基于模型的效率优化方法的仿真计算结果。结果表明:两者的控制效果十分近似,而新方程却具有简单、实用的突出特点,可直接用于实际变频驱动系统的设计和应用。

关键词: V/F比计算, 效率优化, 数值模拟, 磁场控制

Abstract: For various typical loads including fan pump loads; constant torque loads and constant power loads, the optimal efficiency control equation and its constraint conditions are given using the linearizing expression of the motor. Some simulation computations are provided, and a comparison is made between the results of the new method and those of the model based method for efficiency optimization.

Key words: computation for V/F ratio, efficiency optimization, numerical simulation, flux control

中图分类号: