Model Predictive Control for Three-Phase Four-Leg Grid-Tied Inverters

Chen, Qihong; Luo, Xiaoru; Zhang, Liyan; Quan, Shuhai

doi:10.1109/access.2017.2664983

Cited by 49 publications

(25 citation statements)

References 14 publications

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“…In [55], a comparative study between a finite-control-set MPC (FCS-MPC) and synchronous proportional-integral (PI) controller with space vector modulation (PI-SVM) has been established; it was observed that the FCS-MPC is able to generate waveforms with fewer lower-order harmonics than the PI-SVM. The MPC method is able to operate with different voltage/frequency values while maintaining a lower THD value [56][57][58]. However, MPC requires complex implementation as compared to linear controllers.…”

Section: Control Strategies Of Energy-efficient Convertersmentioning

confidence: 99%

Energy-efficient converters for electric vehicle charging stations

et al. 2020

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The rise in the number of electric vehicles used by the consumers is shaping the future for a cleaner and energy-efficient transport electrification. The commercial success of electric vehicles (EVs) relies heavily on the presence of high-efficiency charging stations. This article reviews the design and evaluation of different AC/DC converter topologies of the present status and future implementation plans for DC fast-charging infrastructures. The design and evaluation of these converters are presented, analysed, and compared in terms of output power, component count, power factor, and total harmonic distortion effectiveness and reliability. This paper also evaluates the architecture, merit, and demerits of AC/ DC converter topologies for DC fast-charging stations. Based on this analysis, it has found that the Vienna rectifier is the best suitable converter topology for the high-power DC fast-charging infrastructure (> 20 kW), thanks to its low current ripples, low output voltage ripples, high efficiency, high power density, and high reliability. The paper focuses specifically on different topologies of Vienna rectifier topologies on Level-3 DC fast-charging stations which direct to less CO 2 emissions in electric vehicle charging stations, thus contributing to sustainable development goals of climatic action.

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Section: Control Strategies Of Energy-efficient Convertersmentioning

confidence: 99%

Energy-efficient converters for electric vehicle charging stations

et al. 2020

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“…A comparative study between a finite-control-set MPC (FCS-MPC) and synchronous proportional integral (PI) controller with space vector modulation (PI-SVP) was presented in [18]; it was observed that the FCS-MPC is able to generate waveforms with fewer low-order harmonics than the PI-SVM. The MPC method is able to operate with different voltage/frequency values while maintaining a lower THD value [19][20][21]. However, MPC requires complex implementation as compared to linear controllers.…”

Section: Introductionmentioning

confidence: 99%

A Three-Level Universal Electric Vehicle Charger Based on Voltage-Oriented Control and Pulse-Width Modulation

et al. 2019

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Electric vehicles (EVs) could be used to address the issues of environmental pollution and the depletion of non-renewable energy resources. EVs, which are energized by a battery storage system, are becoming attractive because they keep the environment clean. Furthermore, the cost of EVs is becoming cheaper. Thus, EVs will become a significant load on utility distribution system in the future. EV chargers play a significant role in the expansion of EVs. The input current of an EV charger with a high total harmonic distortion (THD) and a high ripple distortion of the output voltage can impact battery life and battery charging time. Furthermore, the high cost and large size of the chargers are considered other issues in EV development. This work presents the complete design process of a universal EV charger with a special focus on its control algorithms. In this regard, a novel control algorithm based on the integration of voltage-oriented control (VOC) and the sinusoidal pulse-width modulation (SPWM) technique is proposed to ensure effective Levels 1, 2, and 3 battery charging. A simulation of the universal EV charger was conducted and assessed in MATLAB-Simulink. Moreover, a laboratory prototype was constructed with a TMS320F28335 digital signal processor (DSP) programmed as the controller to validate its operation and performance. The findings show that the proposed charger is able to provide a controllable and constant charging voltage for a variety of EVs, with an input current of low total harmonic distortion (THD) and an almost unity power factor.

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“…From another side, model predictive control (MPC) has been widely employed for controlling four-wire inverters [29][30][31][32]. However, MPC methods require precise models and estimation of the power system parameters for stable and efficient control.…”

Section: Introductionmentioning

confidence: 99%

“…The new proposed controller can provide a multifunctional operation of PV systems, while preserving simple implementation and lower number of components compared to [33], eliminating the need for precise modelling compared to the controllers in [29][30][31][32], and being suitable for low-cost microcontroller implementation. From another side, the new proposed system and controller can provide a more efficient and reliable power system operation through the achieved multifunctionalities of neutral current compensation, maximum energy extraction, and local reactive power supply.…”

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confidence: 99%

Multifunctional Distributed MPPT Controller for 3P4W Grid-Connected PV Systems in Distribution Network with Unbalanced Loads

et al. 2019

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The integration of photovoltaic (PV) systems with three-phase four-wire (3P4W) distribution networks has imposed several challenges related to existing unbalanced loads, reactive power generation and harmonics content. In this paper, a multifunctional distributed maximum power point (MPPT) controller for grid integration of PV systems is proposed. The proposed distributed MPPT controller is developed based on employing a four-leg three-level T-type multilevel inverter. The proposed inverter performs multifunctionalities, including distributed MPPT, neutral current compensation for the unbalanced loads, supplying reactive power into the grid and the grid integration. Moreover, the proposed inverter overcomes the stochastic behavior of both the PV generation with partial shading problems and its operation with unbalanced loads as well. Furthermore, the new proposed controller injects sinusoidal output currents with decreased levels of total harmonic distortion (THD) into the grid. The tested case study is investigated for the various operating scenarios of PV generation and load demands. The results and tabulated performance comparisons have proven the superior performance of the proposed multifunctional PV generation system. The results show the ability of the proposed controller to efficiently extract distributed MPPT for all PV modules at all the tested scenarios. Additional improvement of the energy efficiency is achieved through the elimination of the neutral current due to existing unbalanced loads.

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Model Predictive Control for Three-Phase Four-Leg Grid-Tied Inverters

Cited by 49 publications

References 14 publications

Energy-efficient converters for electric vehicle charging stations

Energy-efficient converters for electric vehicle charging stations

A Three-Level Universal Electric Vehicle Charger Based on Voltage-Oriented Control and Pulse-Width Modulation

Multifunctional Distributed MPPT Controller for 3P4W Grid-Connected PV Systems in Distribution Network with Unbalanced Loads

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