scholarly journals On the Potential Contributions of Matrix Converters for the Future Grid Operation, Sustainable Transportation and Electrical Drives Innovation

2021 ◽  
Vol 11 (10) ◽  
pp. 4597
Author(s):  
Alexandre Bento ◽  
Guilherme Paraíso ◽  
Pedro Costa ◽  
Lijun Zhang ◽  
Thomas Geury ◽  
...  
Keyword(s):  
Smart Grids ◽  
Sustainable Transportation ◽  
Extensive Literature ◽  
Power Sector ◽  
Matrix Converters ◽  
Electrical Drives ◽  
Electric Power Sector ◽  
Converter Topologies ◽  
Grid Operation ◽  
And Control

Matrix converters have been extensively investigated in academia over the last 3 decades. Several review works targeting matrix converter topologies, commutation strategies, modulation and control techniques have been published. However, to the best of the authors’ knowledge, a review on the potential contributions of matrix converters for applications that are shaping the electric power sector transition towards decarbonization is lacking, namely applications on smart grids, sustainable transportation and electrical drives. This paper presents an extensive literature review on the more relevant research works targeting applications of matrix converters as an enabling key technology for smart and resilient grids, sustainable transportation, and innovation in variable speed electric drives.

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 An Exploratory Investigation on Modelling Technologies to Flexible Loads Dispatching in A Smart Grid Environment

2020 ◽  
Vol 194 ◽  
pp. 03013
Author(s):  
Kaiwen Zeng ◽  
Fusheng Li ◽  
Jianing Liu ◽  
Haizhu Wang ◽  
Dan Lin ◽  
...  
Keyword(s):  
Smart Grid ◽  
Smart Grids ◽  
Exploratory Investigation ◽  
Modeling Techniques ◽  
Flexible Loads ◽  
Flexible Load ◽  
Load Dispatching ◽  
Grid Operation ◽  
And Control

As the proportion of flexible load resources in smart grids continues to rise, resulting in increasingly complex grid structures, significant changes in grid characteristics, and increased risks to grid operation and control, it will be difficult to intelligently regulate the grid solely by relying on traditional resource regulation methods, and the dispatchable space for traditional resources will become smaller and smaller. To this end, this paper conducts an exploratory investigation on the modeling techniques for flexible loads participation in smart grid dispatching. First, a classification of the flexible loads involved in grid regulation is made. Secondly, according to the flexible load classification, the modeling techniques of different classes of flexible loads are reviewed and studied; then, the flexible load dispatching modes for different operating states and different control tasks, and under different control methods are discussed deeply. Moreover, the technological economics and feasibility of these different flexible load dispatching modes are compared. Finally, an outlook and conclusion are made.

scholarly journals Current Innovation Sources Driving The Spanish Electric Power Sector

2021 ◽  
Vol 41 (3) ◽  
pp. e85377
Author(s):  
Pablo De Mergelina González-Santander ◽  
Isaac Lemus-Aguilar
Keyword(s):  
Renewable Energy ◽  
Electric Power ◽  
Smart Grids ◽  
Electricity Consumption ◽  
Electric Power System ◽  
Renewable Electricity ◽  
Power Sector ◽  
Smart Client ◽  
Electric Power Sector ◽  
Demand Side Response

Renewable energy is not simply the cornerstone of a transition, but an entire electric power revolution. However, which are the technologies with which power companies are going to redesign the electricity industry? Interviews were conducted with innovation managers of the biggest power companies in Spain to shed some light on the innovation sources upon which the electric power system of the future is based. The results revealed that renewable electricity represents a complete paradigm shift. Until now, the system’s net electricity balance has been achieved by adjusting power generation to its demand. However, in a renewable system, electricity generation is limited by and depends on environmental resources, so it cannot be sufficiently controlled to meet the demand at all times. Therefore, it is the electricity consumption that must be adjusted to generation. It was concluded that there are currently nine innovation sources that are redesigning the industry: renewable energy, energy storage systems, electric vehicles, Industry 4.0, smart grids, blockchain, distributed and selfconsumption generation, smart client, and demand side response. Moreover, it was found that system regulations established by governments, business sustainability plans, and open innovation by startups play key roles in the development of innovation.

scholarly journals Integration and control of lithium-ion BESSs for active network management in smart grids: Sundom smart grid backup feeding case

2021 ◽  
Author(s):  
Chethan Parthasarathy ◽  
Hossein Hafezi ◽  
Hannu Laaksonen
Keyword(s):  
Smart Grid ◽  
Network Management ◽  
Smart Grids ◽  
Reactive Power ◽  
Renewable Energy Sources ◽  
Lithium Ion ◽  
Active Network ◽  
Li Ion ◽  
Grid Side ◽  
And Control

AbstractLithium-ion battery energy storage systems (Li-ion BESS), due to their capability in providing both active and reactive power services, act as a bridging technology for efficient implementation of active network management (ANM) schemes for land-based grid applications. Due to higher integration of intermittent renewable energy sources in the distribution system, transient instability may induce power quality issues, mainly in terms of voltage fluctuations. In such situations, ANM schemes in the power network are a possible solution to maintain operation limits defined by grid codes. However, to implement ANM schemes effectively, integration and control of highly flexible Li-ion BESS play an important role, considering their performance characteristics and economics. Hence, in this paper, an energy management system (EMS) has been developed for implementing the ANM scheme, particularly focusing on the integration design of Li-ion BESS and the controllers managing them. Developed ANM scheme has been utilized to mitigate MV network issues (i.e. voltage stability and adherence to reactive power window). The efficiency of Li-ion BESS integration methodology, performance of the EMS controllers to implement ANM scheme and the effect of such ANM schemes on integration of Li-ion BESS, i.e. control of its grid-side converter (considering operation states and characteristics of the Li-ion BESS) and their coordination with the grid side controllers have been validated by means of simulation studies in the Sundom smart grid network, Vaasa, Finland.

Impact of Meshed HVDC Grid Operation and Control on the Dynamics of AC/DC Systems

2020 ◽  
pp. 1-12
Author(s):  
Mehedi Hassan ◽  
M. Jahangir Hossain ◽  
Rakibuzzaman Shah
Keyword(s):  
Grid Operation ◽  
And Control
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