Research on Three-Phase PWM Rectifier Based on Improved Model Predictive Direct Power Control

Zhang, Hao; Liu, Cheng; Sun, Haidong; Qu, Yongyin

doi:10.1109/ceepe51765.2021.9475692

Cited by 1 publication

(1 citation statement)

References 5 publications

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“…Manuscripts (Tarisciotti et al, 2015;Zhang et al, 2018) apply model prediction to rectifiers and active filters, and use vector action time for fixed switching frequency, but the control algorithm is cumbersome and computationally expensive. Research papers (Zhang et al, 2018;Deng et al, 2016) propose to combine space vector pulse width modulation (SVPWM) technology with model prediction. Although the switching frequency is effectively fixed, its dynamic response time depends on the outer loop PI controller., the dynamic response speed was slow and the robustness is poor.…”

Section: Introductionmentioning

confidence: 99%

Sliding mode predictive control of a five-level rectifier with only four–IGBT

Zhu

Zhang²,

Zhao³

et al. 2022

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Purpose Five-level rectifiers have received widespread attention because of their excellent performance in high-voltage and high-power applications. Taking a five-level rectifier with only four-IGBT for this study, a sliding mode predictive control (SMPC) algorithm is proposed to solve the problem of poor dynamic performance and poor anti-disturbance ability under the traditional model predictive control with the PI outer loop. Design/methodology/approach First, mathematical models under the two-phase stationary coordinate system and two-phase synchronous rotating coordinate system are established. Then, the design of the outer-loop sliding mode controller is completed by establishing the sliding mode surface and design approach rate. The design of the inner-loop model predictive controller was completed by discretizing the mathematical model equations. The modulation part uses a space vector modulation technique to generate the PWM wave. Findings The sliding mode predictive control strategy is compared with the control strategy with a PI outer loop and a model predictive inner loop. The proposed control strategy has a faster dynamic response and stronger anti-interference ability. Originality/value For the five-level rectifier, the advantages of fast dynamic influence and parameter insensitivity of sliding mode control are used in the voltage outer loop to replace the traditional PI control, and which is integrated with the model predictive control used in the current inner loop to form a novel control strategy with a faster dynamic response and stronger immunity to disturbances. This novel strategy is called sliding mode predictive control (SMC).

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