A Review of FCS-MPC in Multilevel Converters Applied to Active Power Filters

Foster, João Gabriel Luppi; Pereira, Rondineli Rodrigues; Gonzatti, Robson Bauwelz; Sant’Ana, Wilson Cesar; Mollica, Denis; Lambert‐Torres, Germano

doi:10.1109/cobep/spec44138.2019.9065398

Cited by 12 publications

(8 citation statements)

References 29 publications

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“…The optimal two switch states S opt1 (k + 1) and S opt2 (k + 1) are obtained according to the optimal solution of the objective function, and the obtained two switch states are applied to Equation (11). i p (k + 1) and v(k + 1) are obtained, and Equation ( 11) is subjected to backward difference to obtain Equation (15). In Equation ( 15), the two optimal states i p 1 (k + 1) and i p 2 (k + 1) produced by single-step predictive control continue to predict the output.…”

Section: Multi-step Predictivementioning

confidence: 99%

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A Novel FCS-MPC Method of Multi-Level APF Is Proposed to Improve the Power Quality in Renewable Energy Generation Connected to the Grid

Liu

Yang

2021

Sustainability

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When photovoltaic, wind, energy storage batteries, and other new forms of energy are connected to the grid, power electronic converters are needed, and there are a lot of nonlinear devices in the grid. The characteristics of sustainable energy generation determine the variability and intermittency, which will produce harmonic components. Active power filters (APF) are commonly used in industry for harmonic compensation, so it is of great significance to control APF quickly and effectively. The multi-objective, single-factor, multistep finite control set model predictive control (FCS-MPC) of an APF proposed in this paper is suitable for a multi-objective, multi-level converter control. This method is applied to the three-level APF structure, which changes the traditional three-level FCS-MPC control method. The traditional three-level FCS-MPC includes four control objectives, stable control of the DC-side voltage, power grid harmonic currents generated under non-linear loads, and balance of the capacitor voltage on the DC side when switching frequency. This method uses the redundant switching state of the three-level structure to achieve the voltage balance of the two capacitors on the DC side, which reduces the difficulty of target optimisation caused by the selection of weight factors. Based on the multi-step prediction, power feedback control is added on the DC side to increase the DC side’s reaction speed, eliminate the influence of uncertainty, and realise better dynamic performance. According to the simulation results, we can observe that the proposed method has good followability, can compensate for the harmonics of the power grid, reduces the harmonic content to less than 5%, and can balance the DC-side capacitor voltage.

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Section: Multi-step Predictivementioning

confidence: 99%

“…Concerning the problems that existed in the control method of FCS-MPC, many scholars in related fields have proposed different methods [14]. Studies [15] have considered an MPC method with time-delay compensation. The reference current is predicted by Lagrange' interpolation.…”

Section: Introductionmentioning

confidence: 99%

A Novel FCS-MPC Method of Multi-Level APF Is Proposed to Improve the Power Quality in Renewable Energy Generation Connected to the Grid

Liu

Yang

2021

Sustainability

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“…Stable DC voltage is generated by the PV system and connected to the power grid through a threephase inverter. For the current inner loop, a multistep FCS-MPC algorithm is used to control the PV + APF system to realize system functions [14,19].…”

Section: Pv System Combined With Apf System (Pv + Apf)mentioning

confidence: 99%

“…Due to the irregular and rapid variation of harmonics, the prediction corresponding to the predicted reference value has a large error at the change. Previous work [19] has pointed out that FCS-MPC was applied to an APF to compensate for the harmonic current and reactive power.…”

Section: Introductionmentioning

confidence: 99%

Multistep Finite Control Set Model Predictive Control of Photovoltaic Power Generation System with Harmonic Compensation

Gong

Zhu

2021

Complexity

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Photovoltaic (PV) power generation is the main aspect of new energy power generation, and it is an important means to achieve the goal of carbon neutrality. When the PV system is connected to the grid, the nonlinear load of the grid will affect the power quality and consume reactive power. This paper proposes a PV power generation grid-connected system to improve power quality, with an active power filter (APF) function. Through the maximum power point tracking (MPPT) method, PV power generation can operate at the maximum power point and play the function of harmonic and reactive power compensation at the load side. To improve the dynamic performance of the grid-connected PV system and harmonic compensation simultaneously, multistep finite control set model predictive control (FCS-MPC) is adopted for the grid-connected module. The whole system does not need additional equipment, as it plays the role of two devices and effectively reduces the input cost. In this paper, the proposed structure and multistep FCS-MPC are verified in MATLAB/Simulink. The results show that the system injects the maximum power into the power grid at the same time when the load changes and compensates the harmonic generated by the nonlinear load of the power grid so that the total harmonic distortion of the power grid can meet the operation standard, and the system has good dynamic performance and steady-state performance.

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“…Previous work [14] has pointed out that FCS-MPC was applied to APF, to control APF to compensate harmonic current and reactive power. However, the inherent shortcomings of FCS-MPC were not improved, and vector coverage of all sectors could not be achieved, which affected the control accuracy and compensation results.…”

Section: Introductionmentioning

confidence: 99%

A Novel Multi-vector Model Predictive Current Control of Three-Phase Active Power Filter

Li¹,

Liu²,

Qi³

et al. 2021

EJEE

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This paper proposes the application of a novel finite control set model predictive control (FCS-MPC) strategy in active power filter (APF). In the process of APF compensating harmonic and reactive power, the traditional single vector model predictive current control (MPCC) has low tracking accuracy to harmonic current, while the multi-vector MPCC has the problems of complex calculation and long calculation time, a new multi-vector MPCC control method has proposed in this paper. Firstly, the harmonic reference value is transformed into d-q coordinate system, according to the sector, the slope is calculated and the action time is obtained. Six new expected vectors are synthesized from six effective vectors and zero vectors. The value function is established to loop and calculate the optimal virtual vector, which is applied to APF. Compared with single vector control and traditional multi-vector control, it has a wider vector action area and faster calculation speed. The compensation results and dynamic performance are improved. The simulation results show that the total harmonic distortion (THD) is low.

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A Review of FCS-MPC in Multilevel Converters Applied to Active Power Filters

Cited by 12 publications

References 29 publications

A Novel FCS-MPC Method of Multi-Level APF Is Proposed to Improve the Power Quality in Renewable Energy Generation Connected to the Grid

A Novel FCS-MPC Method of Multi-Level APF Is Proposed to Improve the Power Quality in Renewable Energy Generation Connected to the Grid

Multistep Finite Control Set Model Predictive Control of Photovoltaic Power Generation System with Harmonic Compensation

A Novel Multi-vector Model Predictive Current Control of Three-Phase Active Power Filter

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