Design and analysis of a simple predictive power controller for a 1.0‐kV single‐phase NPC PWM rectifier

Eshkevari, Alireza Lahooti; Mosallanejad, Ali; Sepasian, Mohammad Sadegh

doi:10.1002/cta.2554

Cited by 6 publications

(10 citation statements)

References 34 publications

(90 reference statements)

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“…active and reactive power. By these weighting factors, it is possible to identify the power control priority [4]. The weighting coefficients have assumed to be equal to 1 in this case.…”

Section: Active Rectifier Of Sstmentioning

confidence: 99%

“…In conventional control strategies, the control loop does not include any scheme for cancelling the effect of input voltage harmonics on the DC‐link voltage. As a result, the DC‐link voltage becomes unstable under harmonic conditions [4, 44]. It is possible to use virtual flux theory to solve this problem.…”

Section: Working Principle Of the Sst‐based Ev Charging Stationmentioning

confidence: 99%

“…However, the dynamic response rate is still higher than the voltage oriented control (VOC) due to reducing PI controllers. Both VOC and the conventional predictive control are sensitive to input voltage harmonics such that the output voltage ripple of the rectifier is increased significantly in harmonic conditions [4]. The active and reactive power ( P , Q ) can be deduced from (3), where ω is the grid angular frequency and ( I α , I β ) is the input current in the αβ ‐frame.…”

Section: Working Principle Of the Sst‐based Ev Charging Stationmentioning

confidence: 99%

“…In SSTs, low-voltage and high-voltage DC outputs might be available for use. Classical and commercialised form of SST includes three stages [2,3]: input PWM rectifier [4][5][6], highfrequency DC/DC converter [7][8][9][10], and output inverter [1,11]. Fully-controlled SST operates bidirectionally and transfers energy to both sides.…”

Section: Introductionmentioning

confidence: 99%

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In‐depth study of the application of solid‐state transformer in design of high‐power electric vehicle charging stations

Eshkevari¹,

Mosallanejad

Sepasian

2020

IET Electrical Systems in Transportation

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Solid-state transformers (SST) will play an important role in future electric power distribution. The SST usually used for traction and transportation systems. However, it can be employed for other applications. For example, electric vehicles (EVs) are confronting the increased demand now, and the service provider must expand the infrastructures such as the high-power EV charging stations in urban areas. One solution for designing a high-power charging station is the SST-based charging stations, which can be connected to the distribution network. This study proposes an SST-based EV charging station, which is connected to the 20 kV catenary without any low-frequency transformer and provides the necessary power for connected EVs without affecting the grid power quality. The proposed EV charging station has high flexibility such that it can be integrated with distributed generation. It also provides vehicle-to-grid, grid-to-vehicle and sun-to-vehicle features. Besides, it can inject reactive power to the grid based on its free capacity. This study also proposes an advance virtual flux predictive power controller to improve the immunity of this structure against voltage harmonics. Exact simulations have been done for a three-phase 20 kV/ 600 V/360 kVA station with different scenarios. Results verify the performance of this infrastructure.

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“…active and reactive power. By these weighting factors, it is possible to identify the power control priority [4]. The weighting coefficients have assumed to be equal to 1 in this case.…”

Section: Active Rectifier Of Sstmentioning

confidence: 99%

Section: Working Principle Of the Sst‐based Ev Charging Stationmentioning

confidence: 99%

Section: Working Principle Of the Sst‐based Ev Charging Stationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

In‐depth study of the application of solid‐state transformer in design of high‐power electric vehicle charging stations

Eshkevari¹,

Mosallanejad

Sepasian

2020

IET Electrical Systems in Transportation

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show abstract

“…Majority of the industries and domestic appliances employ DC supply to meet the operational requirement in different applications 1–3 . Multilevel rectifiers (MLRs) have been extensively used for rectification in the recent past due to advantages like higher voltage capability, lower switching loss, and higher efficiency compared to the conventional diode bridge rectifier and two‐level rectifiers 4–6 .…”

Section: Introductionmentioning

confidence: 99%

Performance analysis and reliability estimation of five‐level rectifier

Barwar

Sahu

Bhatnagar³

et al. 2021

Circuit Theory & Apps

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Multilevel rectifiers (MLRs) have been gaining popularity in a variety of applications due to their many advantages over two‐level rectifiers such as reduced voltage stress on power switches, much better harmonic profile of the input waveform, reduced dv/dt stress, possibility of fault tolerant operation, and so on. The use of higher number of semiconductor devices which are relatively more prone to faults plays a crucial role in determining the reliability of the system. In recent literature the performance analysis of the MLR in terms of cost, efficiency, reliability, and voltage stress has been majorly ignored. A five‐level rectifier topology with self‐voltage balancing capability has been implemented in this paper. The implemented topology has the capability to maintain the unity power factor (UPF) in all operating conditions. The in‐depth performance analysis in terms of reliability, efficiency and cost has been carried out to establish the suitability of the implemented topology for real‐time applications. In addition, the effect of various parameters on reliability has also been investigated. The MLR topology has been validated through experimentation. A qualitative and quantitative comparison of the proposed work with state‐of‐art has also been presented.

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Model predictive sliding mode control of six‐phase induction motor using nine‐switch converter

Gülbudak

Gökdağ

Kömürcügil

2022

Circuit Theory & Apps

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This article proposes a new control strategy to regulate the six-phase induction machine fed by a nine-switch converter. The traditional model predictive control method is a favorable feedback control routine in variable-drive applications. However, the lack of the term that assess the closed-loop stability in the conventional cost function formulation may cause potential closed-loop instability and be incapable of tolerating the parameter mismatch. Furthermore, the conventional model predictive control formulation cannot ensure global optimality in case of deviation from the nominal operating point. In this paper, the closed-loop stability is enhanced by including a sliding mode stability term in the objective function. The traditional cost function is redeveloped as a sliding mode control stability term, and the selection of the control input that satisfies the closed-loop loop stability condition is ensured. The robustness performance of the system is improved, and a better steady-state performance is achieved. The proposed control strategy is proved using a hardware setup including a six-phase 30 spatially shifted induction motor and nine-switch converter prototype. The experimental results demonstrate that a secured sixphase induction motor operation is guaranteed while improving the closedloop robustness.

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Design and analysis of a simple predictive power controller for a 1.0‐kV single‐phase NPC PWM rectifier

Cited by 6 publications

References 34 publications

In‐depth study of the application of solid‐state transformer in design of high‐power electric vehicle charging stations

In‐depth study of the application of solid‐state transformer in design of high‐power electric vehicle charging stations

Performance analysis and reliability estimation of five‐level rectifier

Model predictive sliding mode control of six‐phase induction motor using nine‐switch converter

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