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Abstract
This letter proposes a discrete switching sequence control (dSSC) to achieve zero steady-state error tracking for L-type converters. Considering switching characteristics of power electronics, a discrete-time model is established and dSSC is designed step-by-step. A strict mathematical proof ensures that the proposed dSSC achieves reference tracking with zero steady-state errors. Meanwhile, the theoretical discussion shows that the expected dynamics is obtained by choosing the control parameter of dSSC. Compared with classical methods such as pulse width modulation (PWM) and model predictive control (MPC), the proposed dSSC systemically analyzes and designs the dynamics and steady-state accuracy of converters, from a switching theoretical viewpoint. Simulations and experiments verify the effectiveness of the proposed dSSC.
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