A low harmonic inhibitory control method applied to high -power power system
A high-power power supply and hybrid control technology, applied in the direction of output power conversion devices, electrical components, etc., can solve problems such as failure to achieve good results, complex spectrum, etc., to improve voltage response performance, improve operational reliability, and suppress low The effect of subharmonics
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[0084] According to the method of the present invention, a hybrid control method for the high-power power supply system to vary in the voltage full-scale range is formulated. When a single converter unit is running, the variation range of the DC output voltage is set to (-1.0kV, 1.0kV), the trigger angle variation range is set to (30°, 135°), and the no-load output voltage V d0 =1.35kV
[0085] According to formula (6), the variation range of the DC output voltage of the first and second converter units under the 90-degree phase shift control method can be obtained as (0,0.5kV).
[0086] according to image 3 , it is obtained that when the high-power power supply system consists of two converter units connected in series, the hybrid control method under the full-scale voltage change is listed in Table 1:
[0087] Table 1. Hybrid control method for two converter units running in series
[0088]
[0089] according to Figure 4 , it is obtained that when the high-power pow...
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