Dual-Loop Continuous Control Set Model Predictive Control for a Three-phase Unity Power Factor Rectifier

Alfaro, Carlos; Guzmán, Ramón; Vicuña, Luis García de; Miret, Jaume; Castilla, Miguel

doi:10.1109/tpel.2021.3107221

Cited by 19 publications

(11 citation statements)

References 41 publications

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“…Demonstrating clock synchronization in V2V communication with a model, this paper proposed an MPC-based time synchronization method for V2V communication under 5G-R to improve the performance and efficiency of V2V communication synchronization. MPC is a model-based closed-loop optimal control method and has the characteristics of fast transient response and high control bandwidth, making it suitable for fast time-varying scenarios (Alfaro, Guzman, De Vicuña, Miret, & Castilla, 2022).…”

Section: Time Synchronization Methods For V2v Communication Under 5g-rmentioning

confidence: 99%

MPC-based time synchronization method for V2V (vehicle-to-vehicle) communication

Chen

Zhan

Zhang

2023

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PurposeAs the strategy of 5G new infrastructure is deployed and advanced, 5G-R becomes the primary technical system for future mobile communication of China’s railway. V2V communication is also an important application scenario of 5G communication systems on high-speed railways, so time synchronization between vehicles is critical for train control systems to be real-time and safe. How to improve the time synchronization performance in V2V communication is crucial to ensure the operational safety and efficiency of high-speed railways.Design/methodology/approachThis paper proposed a time synchronization method based on model predictive control (MPC) for V2V communication. Firstly, a synchronous clock for V2V communication was modeled based on the fifth generation mobile communication-railway (5G-R) system. Secondly, an observation equation was introduced according to the phase and frequency offsets between synchronous clocks of two adjacent vehicles to construct an MPC-based space model of clock states of the adjacent vehicles. Finally, the optimal clock offset was solved through multistep prediction, rolling optimization and other control methods, and time synchronization in different V2V communication scenarios based on the 5G-R system was realized through negative feedback correction.FindingsThe results of simulation tests conducted with and without a repeater, respectively, show that the proposed method can realize time synchronization of V2V communication in both scenarios. Compared with other methods, the proposed method has faster convergence speed and higher synchronization precision regardless of whether there is a repeater or not.Originality/valueThis paper proposed an MPC-based time synchronization method for V2V communication under 5G-R. Through the construction of MPC controllers for clocks of adjacent vehicles, time synchronization was realized for V2V communication under 5G-R by using control means such as multistep prediction, rolling optimization, and feedback correction. In view of the problems of low synchronization precision and slow convergence speed caused by packet loss with existing synchronization methods, the observer equation was introduced to estimate the clock state of the adjacent vehicles in case of packet loss, which reduces the impact of clock error caused by packet loss in the synchronization process and improves the synchronization precision of V2V communication. The research results provide some theoretical references for V2V synchronous wireless communication under 5G-R technology.

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Section: Time Synchronization Methods For V2v Communication Under 5g-rmentioning

confidence: 99%

MPC-based time synchronization method for V2V (vehicle-to-vehicle) communication

Chen

Zhan

Zhang

2023

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“…For (12), we know that, because U a > U b , I ar > I br and 3(U a ) > U dc in sector I, the conditions of Lemma is satisfied, i.e. the switching between the subsystems S 5 , S 6 and S 7 in sector I is stable.…”

Section: B the Improved Switching Tablementioning

confidence: 99%

A Switching Predictive Control Method of Three Phase VSCs Based on Switching Affine Model

Guo

Pan

2023

IEEE Access

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The working process of three-phase voltage source converters (VSCs) can be treated as the switching between the different subsystems, which is a typical switched system. The switching control strategies based on the switching model achieve satisfactory control performance of threephase VSCs with very simple control structure and less control parameters. However, two drawbacks restrict the flexible applications of the present switching control strategies, i.e. the unfixed switching frequency problem and the unstable subsystem switching problem caused by the system delay. In this paper, a current switching predictive control (CSPC) method based on the current switching affine error model is proposed to the three-phase VSCs. The proposed method, by remaining the advantages of traditional switching control methods, realizes the fixed switching frequency of threephase VSCs in the framework of switched system and achieves desired performance under system delay conditions. The simulation and experiment results verify the effectiveness of the proposed methodology.

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“…Based on the commonly used unity power factor control [23], the q‐axis current of VSC is regulated as 0 to maximize the active power generation, implying that

{\widehat{I}}_c

and

{\widehat{U}}_c

are collinear. Accordingly, the output power of CIG is expressed as follows.…”

Section: Control Mode Switching Of Cig Under Grid Faultmentioning

confidence: 99%

Fault analysis of converter interfaced generator embedded power system considering control mode switching

Zhang

et al. 2023

IET Generation Trans & Dist

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Converter interfaced generation (CIG) may switch into different control modes under different fault scenarios, which poses a significant challenge to the fault calculation of modern power systems. This paper first establishes a reduced fault analysis model of CIG considering control mode switching. By neglecting the fast dynamic processes of the converter controller, CIG with each control mode can be expressed by equality and inequality constraints. Then, an alternative iteration algorithm is proposed to determine the control mode of each grid-tied converter after fault, which mainly contains the estimation and discrimination steps. In the estimation step, the voltage of the point of common coupling (PCC) and output current of CIG are obtained by simultaneously solving the equality constraints of CIG and the reduced network equation. In the discrimination step, the inequality constraints of CIG are utilized to judge and revise the control mode of each converter. With alternative execution of the estimation and discrimination steps, the fault network can be solved. Simulation studies based on PSCAD/EMTP validate that the proposed method has high accuracy in fault calculation of the CIG embedded system under various fault locations and fault resistances.

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Dual-Loop Continuous Control Set Model Predictive Control for a Three-phase Unity Power Factor Rectifier

Cited by 19 publications

References 41 publications

MPC-based time synchronization method for V2V (vehicle-to-vehicle) communication

MPC-based time synchronization method for V2V (vehicle-to-vehicle) communication

A Switching Predictive Control Method of Three Phase VSCs Based on Switching Affine Model

Fault analysis of converter interfaced generator embedded power system considering control mode switching

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