scholarly journals An Overview of Modelling Techniques and Control Strategies for Modular Multilevel Matrix Converters

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4678 ◽  
Author(s):  
Matias Diaz ◽  
Roberto Cardenas ◽  
Efrain Ibaceta ◽  
Andrés Mora ◽  
Matias Urrutia ◽  
...  
Keyword(s):  
Control Systems ◽  
Control Strategies ◽  
Power Converter ◽  
Matrix Converter ◽  
Matrix Converters ◽  
Acceptable Range ◽  
Capacitor Voltage ◽  
Converter Topology ◽  
Modelling Techniques ◽  
And Control

The Modular Multilevel Matrix Converter is a relatively new power converter topology appropriate for high-power Alternating Current (AC) to AC purposes. Several publications in the literature have highlighted the converter capabilities such as modularity, control flexibility, the possibility to include redundancy, and power quality. Nevertheless, the topology and control of this converter are relatively complex to design and implement, considering that the converter has a large number of cells and floating capacitors. Therefore multilayer nested control systems are required to maintain the capacitor voltage of each cell regulated within an acceptable range. There are no other review papers where the modelling, control systems and applications of the Modular Multilevel Matrix Converter are discussed. Hence, this paper aims to facilitate further research by presenting the technology related to the Modular Multilevel Matrix Converter, focusing on a comprehensive revision of the modelling and control strategies.

scholarly journals An Overview of Applications of the Modular Multilevel Matrix Converter

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5546
Author(s):  
Matias Diaz ◽  
Roberto Cárdenas Dobson ◽  
Efrain Ibaceta ◽  
Andrés Mora ◽  
Matias Urrutia ◽  
...  
Keyword(s):  
High Power ◽  
State Of The Art ◽  
Power Converter ◽  
Matrix Converter ◽  
Motor Drives ◽  
Future Trends ◽  
Grid Connection ◽  
Redundancy Control ◽  
Converter Topology ◽  
And Control

The modular multilevel matrix converter is a relatively new power converter topology suitable for high-power alternating current (AC)-to-AC applications. Several publications in the literature have highlighted the converter capabilities, such as full modularity, fault-redundancy, control flexibility and input/output power quality. However, the topology and control of this converter are relatively complex to realise, considering that the converter has a large number of power-cells and floating capacitors. To the best of the authors’ knowledge, there are no review papers where the applications of the modular multilevel matrix converter are discussed. Hence, this paper aims to provide a comprehensive review of the state-of-the-art of the modular multilevel matrix converter, focusing on implementation issues and applications. Guidelines to dimensioning the key components of this converter are described and compared to other modular multilevel topologies, highlighting the versatility and controllability of the converter in high-power applications. Additionally, the most popular applications for the modular multilevel matrix converter, such as wind turbines, grid connection and motor drives, are discussed based on analyses of simulation and experimental results. Finally, future trends and new opportunities for the use of the modular multilevel matrix converter in high-power AC-to-AC applications are identified.

scholarly journals Modelling and analysis of a NTVV-SVM based three-level twin-step matrix converter

2018 ◽  
Vol 7 (4) ◽  
pp. 2672
Author(s):  
Shamsher Ansari ◽  
Aseem Chandel ◽  
SMIEEE . ◽  
Zulfiqar Ali Sheikh
Keyword(s):  
High Power ◽  
Theoretical Study ◽  
Matrix Converter ◽  
Matrix Converters ◽  
Output Performance ◽  
The Matrix ◽  
Power Switches ◽  
Converter Topology ◽  
Vector Modulation ◽  
Ac Converters

Recently the tremendous advancement has been seen in the field of matrix converter topology. For high power drive applications, industries often need high power AC-AC converters like three level matrix converter because it is having the ability to generate a set of balanced sine waves for inputs as well as outputs. The three level matrix converters possess better output performance with reduced harmonic contents compared to all two-stage indirect matrix converters. In this matrix converter topology, the idea of neutral-point clamped-VSI is employed to the inversion step of the matrix converter circuitry. To control the power switches the gate signals are produced using NTVV based space vector modulation. To justify the theoretical study a complete model of a three-level twin-step matrix converter has been designed in Matlab/Simulink and its performances are analysed.  

scholarly journals Wind Energy Harnessing in a Railway Infrastructure: Converter Topology and Control Proposal

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1943
Author(s):  
Oier Oñederra ◽  
Francisco Javier Asensio ◽  
Gaizka Saldaña ◽  
José Ignacio San Martín ◽  
Inmaculada Zamora
Keyword(s):  
Wind Energy ◽  
Electrical Energy ◽  
Vertical Axis ◽  
Power Converter ◽  
Power Delivery ◽  
Railway Infrastructure ◽  
Wind Potential ◽  
Converter Topology ◽  
Energy Harnessing ◽  
And Control

Long distances in the vicinities of railways are not exploited in terms of wind energy. This paper presents a scalable power electronics approach, aimed to harness the wind potential in a railway infrastructure. The key aspect of this proposal relies on both using the wind energy in the location, and the displaced air mass during the movement of a train along the railway, in order to produce electrical energy. Vertical Axis Wind Turbines (VAWT) are used in order to take advantage of the wind power, and widely used and well-known power converter techniques to accomplish the goal, showing MPPT techniques, parallelization of converters and power delivery with a Solid State Transformer (SST). Results are shown according simulations of the whole system, with and without train activity, resulting that 30.6 MWh of the energy could be generated without the train, and the energy generated with the assistance of the train could reach 32.3 MWh a year. Concluding that almost the 10% of the energy could be provided by the assistance of the train.

scholarly journals Recent Advances in Bidirectional Modeling and Structural Control

2016 ◽  
Vol 2016 ◽  
pp. 1-17 ◽  
Author(s):  
Satyam Paul ◽  
Wen Yu ◽  
Xiaoou Li
Keyword(s):  
Control Systems ◽  
Structural Control ◽  
Seismic Waves ◽  
Control Strategies ◽  
Optimal Placement ◽  
Modeling And Control ◽  
Control Devices ◽  
Identification Techniques ◽  
And Control ◽  
Bidirectional Modeling

This paper provides an overview of building structure modeling and control under bidirectional seismic waves. It focuses on different types of bidirectional control devices, control strategies, and bidirectional sensors used in structural control systems. This paper also highlights the various issues like system identification techniques, the time-delay in the system, estimation of velocity and position from acceleration signals, and optimal placement of the sensors and control devices. The importance of control devices and its applications to minimize bidirectional vibrations has been illustrated. Finally, the applications of structural control systems in real buildings and their performance have been reviewed.

scholarly journals Performance Analysis of Very Sparse Matrix Converter using Indirect Space Vector Modulation

2019 ◽  
Vol 9 (1) ◽  
pp. 4756-4762
Keyword(s):  
Semiconductor Device ◽  
Sparse Matrix ◽  
Control Strategies ◽  
Input Power ◽  
Matrix Converter ◽  
Modulation Scheme ◽  
Space Vector Modulation ◽  
Space Vector ◽  
Matrix Converters ◽  
Vector Modulation

In this p aper, Matrix Converter is which converts the AC to AC in a single stage. The merits of the matrix converter is its able to deliver variable output voltage with unrestricted input and output frequency, the lack of electrolytic capacitors, and the potential to raise the power density, decrease the size, less weight and better input power quality. In whatever way, application of these converters are restricted because of some issues such as different control strategies, high susceptibility to input power disturbances, common mode voltage effects and less voltage transfer ratio. Recently, matrix converters have gained a resurgence of importance due to the improvements in the semiconductor device industry and the increasing of processor technologies, which promises real implementation of matrix converters in the control of drives. The real effect of indirect space vector modulation scheme for very sparse matrix converter performance will be measures by testing of computationally for using indirect space vector modulation strategies with the passive R load and active load .

scholarly journals Direct Matrix Converter Topologies with Model Predictive Current Control Applied as Power Interfaces in AC, DC, and Hybrid Microgrids in Islanded and Grid-Connected Modes

Energies ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 3302 ◽  
Author(s):  
Gustavo Gontijo ◽  
Matheus Soares ◽  
Thiago Tricarico ◽  
Robson Dias ◽  
Mauricio Aredes ◽  
...  
Keyword(s):  
Power Quality ◽  
High Power ◽  
Matrix Converter ◽  
Current Control ◽  
Matrix Converters ◽  
Intermittent Behavior ◽  
Hybrid Microgrid ◽  
Islanded Operation ◽  
Converter Topologies ◽  
And Control

This paper presents an analysis of a new application of different direct matrix converter topologies used as power interfaces in AC, DC, and hybrid microgrids, with model predictive current control. Such a combination of a converter and control strategy leads to a high power quality microgrid voltage, even with a low power quality main grid voltage and even during the connection and disconnection of a variety of loads and generation sources to the microgrids. These robust systems are suitable for applications in which sensitive loads are to be supplied and these loads are connected close to distributed-generation sources with inherent intermittent behavior. The authors also propose the use of new direct matrix converter configurations with a reduced number of switches in order to achieve reduced cost, reduced failure rate, and higher reliability, which are very desirable in microgrids. Finally, the authors also introduce new hybrid direct matrix converter topologies that provide interesting options for the islanded operation of the microgrids with the use of a battery system. In other words, the proposed hybrid direct matrix converters result in flexible hybrid microgrid configurations integrating DC and AC devices with high power quality and high power supply reliability.

scholarly journals A Critical Review of Stall Control Techniques in Industrial Fans

2013 ◽  
Vol 2013 ◽  
pp. 1-18 ◽  
Author(s):  
Stefano Bianchi ◽  
Alessandro Corsini ◽  
Anthony G. Sheard ◽  
Cecilia Tortora
Keyword(s):  
Control Systems ◽  
Passive Control ◽  
Control Strategies ◽  
Warning System ◽  
Detection Methods ◽  
Stall Inception ◽  
Stall Margin ◽  
Control Techniques ◽  
Control Technologies ◽  
And Control

This paper reviews modelling and interpretation advances of industrial fan stall phenomena, related stall detection methods, and control technologies. Competing theories have helped engineers refine fan stability and control technology. With the development of these theories, three major issues have emerged. In this paper, we first consider the interplay between aerodynamic perturbations and instability inception. An understanding of the key physical phenomena that occurs with stall inception is critical to alleviate stall by design or through active or passive control methods. We then review the use of passive and active control strategies to improve fan stability. Whilst historically compressor design engineers have used passive control techniques, recent technologies have prompted them to install high-response stall detection and control systems that provide industrial fan designers with new insight into how they may detect and control stall. Finally, the paper reviews the methods and prospects for early stall detection to complement control systems with a warning capability. Engineers may use an effective real-time stall warning system to extend a fan’s operating range by allowing it to operate safely at a reduced stall margin. This may also enable the fan to operate in service at a more efficient point on its characteristic.

Summary of Rese arch Status and Control Strategies for Matrix Converter

2015 ◽  
Vol 734 ◽  
pp. 910-915
Author(s):  
Zheng Hai Sun ◽  
Jian Ping Wang
Keyword(s):  
Power Factor ◽  
High Power ◽  
Control Strategies ◽  
Electronic Devices ◽  
Matrix Converter ◽  
Power Electronic ◽  
Key Technology ◽  
High Power Factor ◽  
And Control ◽  
Further Development

With the further development of power electronic devices, matrix converter has many excellent properties. As high power factor converter equipment, matrix converter will have a great potential for its development. After reviewing the current situation from both domestic and abroad, this paper describes the key technology of Matrix Converter, including topology, modulation strategy and commutation problems. Finally make a summary of matrix converter operation’s enhancement and improvement of the ability of the method in abnormal conditions.

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