Finite‐state model predictive power control of three‐phase bidirectional AC/DC converter under unbalanced grid faults with current harmonic reduction and power compensation

Jin, Nan; Guo, Leilei; Gan, Chun; Hu, Shiyang; Dou, Zhifeng

doi:10.1049/iet-pel.2017.0209

Cited by 18 publications

(12 citation statements)

References 31 publications

(64 reference statements)

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“…The instantaneous active and reactive power can be predicted at the sample (k + 1) based on (6) and (7) for a prediction horizon of one sampling period [1,7,27,39]. Thus, P and Q at the sample (k + 1) are given by…”

Section: Mathematical Modelmentioning

confidence: 99%

“…Model predictive control (MPC) is one of the recent control techniques that has been applied successfully for several optimisation problems in electrical systems [1,2]. In the MPC approach, the future behaviour of the system is predicted over a finite time frame such that optimum future control action is applied to the system to achieve specific goal function [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Performance of model predictive control approach for single‐phase distributed energy grid integration with PQ control

Azab

2019

IET Energy Systems Integration

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This study investigates the performance of finite control set-model predictive control (FCS-MPC) strategy employed for the control of active (P) and reactive power (Q) injected to the grid from a distributed energy resource using a single-phase grid-tied inverter. In the study, three different computational methods are utilised to create the orthogonal components of grid current and voltage in the stationary reference frame that are required for PQ computations. The obtained results indicate that FCS-MPC approach is effective to provide flexible control of the power injected to the grid. Moreover, the steady state and transient performance of P and Q components are affected by the method of creating the imaginary quadrature component. Owing to the results, the second-order generalised integrator method provides the best steady state performance in terms of the lowest total harmonic distortion of grid current and minimum resultant peak-peak power ripple. While the quarter cycle phase delay method results in the worst transient behaviour owing to an unavoidable time delay of 0.005 s in case of 50 Hz supply system. In addition, the robustness of the FCS-MPC system is examined against parameters variation over a wide range. The overall FCS-MPC system is studied using PSIM ® software.

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Section: Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance of model predictive control approach for single‐phase distributed energy grid integration with PQ control

Azab

2019

IET Energy Systems Integration

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“…As the main device connecting the power electronic devices with power grid, the 2-level voltage source inverters (2L-VSIs) have been widely used in many areas, such as photovoltaic power generation systems, wind power generation systems, power drive systems, micro-grids etc. [1][2][3][4][5]. The common control methods of 2L-VSIs mainly include space vector control and direct power control.…”

Section: Introductionmentioning

confidence: 99%

Hybrid single and double‐voltage vector‐based model predictive common‐mode voltage reduction method for 2‐level voltage source inverters

Guo

Jin

Cao

et al. 2019

IET Power Electronics

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To reduce the common-mode voltage (CMV) as well as the current total harmonic distortions (THDs) of 2-level voltage source inverters (2L-VSIs), a hybrid single and double-voltage vector (VV)-based model predictive control (MPC) method is proposed. Firstly, a two non-zero VV-based MPC strategy is proposed to reduce the CMV as well as the current THDs. Secondly, the influences of the dead time on this method are analysed in detail, and an improved VV preselection method is further proposed to remove the dead time effects. Thirdly, considering the impacts of the control delay and the current ripples, a new current sector division method is presented, based on which a hybrid single and double-VV-based MPC strategy is finally proposed. Furthermore, the current variation per control period under the action of different VVs is also analysed indepth in this study to lay a solid theoretical foundation for dividing the current sector more properly. Both the simulation and experimental studies are carried out to verify the effectiveness of the proposed method.

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“…In recent years, as a heuristic non-linear control method, model predictive control (MPC) has been frequently researched in the field of power electronics and power drives due to its simple and flexible control characteristics [1][2][3][4]. The authors [5,6] have investigated the application of MPC strategy to 2-level voltage source inverters (2L-VSIs) and motor controls.…”

Section: Introductionmentioning

confidence: 99%

Hybrid voltage vector preselection based model predictive control to reduce the common‐mode voltage for 2‐level voltage source inverters

Guo

Jin

Cao

et al. 2019

IET Power Electronics

Self Cite

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Model predictive control (MPC) strategies have been frequently studied in recent years. To reduce the common-mode voltage (CMV) as well as the current total harmonic distortions (THDs) of the 2-level voltage sources (2L-VSIs), a new MPC strategy is proposed in this study considering both the dead-time and the one-step delay effects. First, the reference voltage vector (VV) prediction based MPC strategy is utilised as it is simple and accurate. Next, the VV preselection strategy is studied in detail to remove the CMV spikes. The effects of the dead time on the CMV are analysed, and an improved VV preselection strategy is presented to reduce the CMV spikes. Then, the one-step delay effects are also analysed, and further improvements are made to completely remove the CMV spikes. Moreover, the maximum variation of the current during one control period is studied in-depth to provide a solid theory foundation for dividing the current sector more accurately. As the six non-zero VVs of the 2L-VSI are fully used in the proposed method, not only the CMV but also the current THDs are reduced. Finally, comparative simulation and experimental studies are carried out to validate the effectiveness of the proposed method. 2 Conventional MPC strategy for 2L-VSIs The topology of the 2L-VSI is shown in Fig. 1a. Fig. 1b shows the eight VVs of the 2L-VSI, including two zero VVs, i.e. u 0 (000), and

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Finite‐state model predictive power control of three‐phase bidirectional AC/DC converter under unbalanced grid faults with current harmonic reduction and power compensation

Cited by 18 publications

References 31 publications

Performance of model predictive control approach for single‐phase distributed energy grid integration with PQ control

Performance of model predictive control approach for single‐phase distributed energy grid integration with PQ control

Hybrid single and double‐voltage vector‐based model predictive common‐mode voltage reduction method for 2‐level voltage source inverters

Hybrid voltage vector preselection based model predictive control to reduce the common‐mode voltage for 2‐level voltage source inverters

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