北京航空航天大学学报 ›› 2008, Vol. 34 ›› Issue (09): 1028-1031.

• 论文 • 上一篇    下一篇

特定消谐逆变器开关角度的复形调优解法

武建文,王峰   

  1. 北京航空航天大学 自动化科学与电气工程学院, 北京 100191
  • 收稿日期:2007-08-16 出版日期:2008-09-30 发布日期:2010-09-17
  • 作者简介:武建文(1963-),男, 河北怀来人, 教授,wjwe206@sina.com.
  • 基金资助:

    国家自然科学基金资助项目(50477002); 航空科学基金资助项目(05F51021)

Solution to switching angles for selective harmonic elimination inverter

Wu Jianwen, Wang Feng   

  1. School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2007-08-16 Online:2008-09-30 Published:2010-09-17

摘要: 针对特定消谐式逆变器开关角度难于求解的问题,提出了一种基于约束条件下n维极值复形调优法的开关角度求解方法,分析了目标函数和约束条件的设计方法.该算法对开关角度初值的选取只需考虑约束条件,大大增加了开关角度初值的取值范围;求解过程中不存在解发散或奇异无解问题,与迭代法解非线性超越方程组相比可靠性更高;通过约束条件的限制,使求解过程自动消除了可能出现的窄脉冲;通过目标函数和加权因子可灵活的进行开关角度优化.算例和实验结果验证了方法的正确性和有效性.

Abstract: Since the solution to switching angles for selective harmonic elimination inverter is difficult, a method of solution to switching angles based on complex optimal method with constrain conditions was presented,and the design method of objective function and constrain conditions was analyzed.This method enlarges the range of initial switching angles,only considering constrain conditions. It is more reliable compared with solving nonlinear transcendental equations,there is no divergence or singular problem. The narrow pulse is eliminated through restricting constrain conditions in the process of solving switching angles. The optimization for switching angles is available though designing objective function and weighted factor.The results of calculation and experiment show that the method of solving switching angles proposed is correctness and validity.

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