Model predictive current control for four‐switch three‐phase rectifiers in balanced grids

Liu, Yong-Chao; Ge, Xinglai; Tang, Qidi; Deng, Zhixian; Gou, Bin

doi:10.1049/el.2016.3694

Cited by 13 publications

(9 citation statements)

References 6 publications

(16 reference statements)

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“…A topology such as the four-switch three-phase (FSTP) presented in Ref. [14][15][16] can be used. Readers can refer to these references which show the rectifier topology in detail operated with balanced and unbalanced grids and using new methods to reduce the ripples in the DC link.…”

Section: Rectifier Designmentioning

confidence: 99%

Mitigation of voltage imbalance in power distribution system using MPC‐controlled packed‐U‐cells converter

Ahmed

Al‐Emadi

Gastli

et al. 2019

Energy Science & Engineering

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Delivering high power quality in single‐phase distribution has witnessed more challenges especially with the increased penetration of single‐phase distributed generation (DG). This paper proposes a smart solid‐state‐based transformer, which aims to replace traditional ones, for single‐phase distribution laterals, and provide load balancing and protection to the three‐phase main feeders, that is based on connecting the single‐phase lateral to the three‐phase main feeder through a power electronics converter. This converter transfers balanced power from and to the three‐phase feeder while automatically regulating the lateral single‐phase voltage, hence, assuring high power quality without requiring any transformer on‐load tap changer. A 7‐level packed‐U‐cells (PUC) single‐phase inverter topology was used to deliver single‐phase regulated sinusoidal voltage to the AC loads, and at the same time, it is able to deliver DC power to DC loads. The simulation and hardware‐in‐the‐loop (HIL) results have shown that the proposed topology delivers high power quality for both AC and DC loads under different operating scenarios. Moreover, the converter can play the role of a solid‐state protection device coordinated with other up‐ and downstream protective devices. Finally, this system can be integrated within the smart grid allowing more flexibility for automation and efficient control of the grid.

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Section: Rectifier Designmentioning

confidence: 99%

Mitigation of voltage imbalance in power distribution system using MPC‐controlled packed‐U‐cells converter

Ahmed

Al‐Emadi

Gastli

et al. 2019

Energy Science & Engineering

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“…Based on the predictive current control of conventional PWM converter and the criterion of inductance current, an improved predictive current control for the PWM converter, which is suitable for the RC-IGBT is obtained [27][28][29][30][31]. The conventional single-phase PWM converter is controlled by the predictive current method.…”

Section: Improved Predictive Current Controlmentioning

confidence: 99%

Research on Single-Phase PWM Converter with Reverse Conducting IGBT Based on Loss Threshold Desaturation Control

et al. 2017

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In the application of vehicle power supply and distributed power generation, there are strict requirements for the pulse width modulation (PWM) converter regarding power density and reliability. When compared with the conventional insulated gate bipolar transistor (IGBT) module, the Reverse Conducting-Insulated Gate Bipolar Transistor (RC-IGBT) with the same package has a lower thermal resistance and higher current tolerance. By applying the gate desaturation control, the reverse recovery loss of the RC-IGBT diode may be reduced. In this paper, a loss threshold desaturation control method is studied to improve the output characteristics of the single-phase PWM converter with a low switching frequency. The gate desaturation control characteristics of the RC-IGBT's diode are studied. A proper current limit is set to avoid the ineffective infliction of the desaturation pulse, while the bridge arm current crosses zero. The expectation of optimized loss decrease is obtained, and the better performance for the RC-IGBTs of the single-phase PWM converter is achieved through the optimized desaturation pulse distribution. Finally, the improved predictive current control algorithm that is applied to the PWM converter with RC-IGBTs is simulated, and is operated and tested on the scaled reduced power platform. The results prove that the gate desaturation control with the improved predictive current algorithm may effectively improve the RC-IGBT's characteristics, and realize the stable output of the PWM converter.

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“…However, keeping the power converter working requires the development of specific control strategies for post‐fault operation. A model predictive control (MPC) scheme is presented in [7], which is based on a cost function with weighting factors. Only one switching state is selected in a switching interval, which minimises the errors between the input currents and their reference values as well as the DC bus voltage offset.…”

Section: Introductionmentioning

confidence: 99%

Robust control of a floating OWC WEC under open‐switch fault condition in one or in both VSCs

Ramirez

Blanco

Zarei

et al. 2020

IET Renewable Power Generation

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The operation and maintenance activity of offshore wind turbines (WTs) increases the cost of the generated energy. Although significant efforts have been made to improve the reliability of the mechanical subassemblies, electrical and electronic subassemblies fail more frequently, causing undesirable downtimes and loss of revenues. Since offshore WTs and wave energy converters (WECs) share the electrical and electronic subassemblies, the reliability of WECs is expected to be affected by the same causes. This study presents a robust model predictive control for a WEC consisting of an oscillating water column (OWC) installed in a point absorber. The control system is capable of dealing with open switch faults in one or two insulatedgate bipolar transistors of the same arm in any of the voltage source converters (VSCs), or even in both VSCs at the same time. The system allows the OWC WEC to generate energy, although under certain restrictions, thereby reducing the urgency of repair and loss of revenues. The performance of the proposed approach is tested for several cases of open switch faults, experimentally in the laboratory using an OWC WEC emulator.

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Model predictive current control for four‐switch three‐phase rectifiers in balanced grids

Cited by 13 publications

References 6 publications

Mitigation of voltage imbalance in power distribution system using MPC‐controlled packed‐U‐cells converter

Mitigation of voltage imbalance in power distribution system using MPC‐controlled packed‐U‐cells converter

Research on Single-Phase PWM Converter with Reverse Conducting IGBT Based on Loss Threshold Desaturation Control

Robust control of a floating OWC WEC under open‐switch fault condition in one or in both VSCs

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