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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.

Keywords�� inverter selective harmonic elimination nonlinear transcendental equations complex optimal method switching angle

Received 2007-08-16;

Fund:

��Ȼ��ѧ��Ŀ(50477002); ��տ�ѧ��Ŀ(05F51021)

About author: �佨��(1963-),��, �ӱ��, ��,wjwe206@sina.com.

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�佨��,��.�ض��г��ؽǶȵĸ��ε��Žⷨ[J] ��պ��ѧѧ��, 2008,V34(09): 1028-1031

Wu Jianwen, Wang Feng.Solution to switching angles for selective harmonic elimination inverter[J] JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(09): 1028-1031

��ӱ��:

http://bhxb.buaa.edu.cn//CN/ �� http://bhxb.buaa.edu.cn//CN/Y2008/V34/I09/1028

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