A three-phase voltage source PWM rectifier with strong DC immunity based on model predictive control

Cai, Shulin; Cao, Hui; Danxi, Liang; Niu, Rong; Jia, Lixin; Ahmad, Md. Waseem

doi:10.1109/chicc.2015.7260890

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…A capacitive energy-storage feedback-control strategy with a current inner loop and DC-side capacitive energy storage as the outer loop was presented [22] to overcome slow outputvoltage regulation when the load changes and to improve the dynamic characteristics of the system. Similarly, a different control strategy with voltage squared as the outer loop and model-predicted current as the inner loop was designed to address the same problem [23]. The results of the latter study reinforced the fast-tracking ability of the system to DC output voltage.…”

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confidence: 80%

Research on High-Quality Control Technology for Three-Phase PWM Rectifier

Zhi

Song

et al. 2023

Electronics

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With the development of power-electronics technology, PWM rectifiers are widely used in many fields. They are especially suitable for high-precision- and high-efficiency-application scenarios, such as communication and industrial control. Although it has many advantages, overshoot control during startup is a challenge. Therefore, this paper first derives the input–output mathematical model through equation establishment and dq-coordinate transformation. Next, a voltage and current double closed-loop simulation model is established in MATLAB/Simulink, and its control effect is analyzed. On this basis, a new voltage-setting strategy is designed to reduce the output-voltage overshoot of the PWM rectifier when starting. The simulation results demonstrate that the strategy has a good application effect and can contain starting-voltage overshooting from 12.88% to 0.925%. Moreover, the principle of this strategy is simpler and easier to understand and implement compared with traditional strategies.

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confidence: 80%

Research on High-Quality Control Technology for Three-Phase PWM Rectifier

Zhi

Song

et al. 2023

Electronics

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“…Using the simplified model of the PWM rectifier in [16], the internal model controller can improve the robustness and dynamic-response ability of the system, but its control effect is largely limited by the accuracy of the model. In [17], the performance is increased by introducing the model predictive control to the double closed-loop control, but its computation is so large that this method is not suitable for engineering applications. Considering the nonlinearity of the model and the parametric uncertainties, a robust voltage tracking algorithm with variable sliding surface is presented to ensure the robustness of the system [18], however, the algorithm has strong adaptive ability but high complexity.…”

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confidence: 99%

DC-Link Voltage Disturbance Rejection Strategy of PWM Rectifiers Based on Reduced-Order LESO

et al. 2019

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In applications of pulse-width modulation (PWM) rectifiers, the high quality of the DC power is required. The fluctuation of grid voltage and the switching of equipment connected to the DC supply are likely to cause a sudden change in the DC-link voltage, resulting in equipment instability or even damage. Considering the bandwidth of the closed-loop current dynamic, this paper presents a novel DC-link voltage control strategy of PWM rectifiers based on the reduced-order linear extended state observer (RLESO). Using a first-order RLESO to observe and even compensate the model variations caused by grid voltage and DC-link voltage fluctuations or load transients, the proposed method can effectively improve the dynamic performance against grid and load disturbances, as well as for sudden changes in DC-link reference voltage. Combined with frequency domain analysis, this paper theoretically analyzes the sensitivity, stability, and tracking performance of the proposed method, providing a basis for the selection of controller parameters. And finally, simulation and experimental results are presented to demonstrate its validity and the superiority over the traditional PI control strategy.

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Model‐free predictive control of non‐isolated two‐stage AC–DC–DC converter based on linear extended state observer

Chen

et al. 2022

Intl J Robust & Nonlinear

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A three-phase voltage source PWM rectifier with strong DC immunity based on model predictive control

Cited by 5 publications

References 7 publications

Research on High-Quality Control Technology for Three-Phase PWM Rectifier

Research on High-Quality Control Technology for Three-Phase PWM Rectifier

DC-Link Voltage Disturbance Rejection Strategy of PWM Rectifiers Based on Reduced-Order LESO

Model‐free predictive control of non‐isolated two‐stage AC–DC–DC converter based on linear extended state observer

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