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The time domain harmonic detecting algorithm is the most widely used algorithm in industrial applications. The most of research works was concentrated on interpretation of physical meaning but the digital LPF (low-pass filter) having a great effect on detecting results was almost not investigated, especially the LPF for selective harmonic was not researched in detail. In this paper, Butterworth LPF...
The control time delay and the passive component variation were the major disadvantages of the deadbeat current control. It could induce system oscillation and even stability to be lost. In order to get the relation of stability with control time delay and the system parameters variation, a new stability criterion method based on W' transform was proposed. A new current loop transfer function including...
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