scholarly journals Control Strategies of DC Microgrids Cluster: A Comprehensive Review

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7569
Author(s):  
Zaid Hamid Abdulabbas Al-Tameemi ◽  
Tek Tjing Lie ◽  
Gilbert Foo ◽  
Frede Blaabjerg
Keyword(s):  
Power Flow ◽  
Control Strategies ◽  
Future Research ◽  
Consensus Protocol ◽  
Power Flow Control ◽  
Dc Microgrids ◽  
Significant Control ◽  
Comparative Review ◽  
Cluster A ◽  
Research Recommendations

Multiple microgrids (MGs) close to each other can be interconnected to construct a cluster to enhance reliability and flexibility. This paper presents a comprehensive and comparative review of recent studies on DC MG clusters’ control strategies. Different schemes regarding the two significant control aspects of networked DC MGs, namely DC-link voltage control and power flow control between MGs, are investigated. A discussion about the architecture configuration of DC MG clusters is also provided. All advantages and limitations of various control strategies of recent studies are discussed in this paper. Furthermore, this paper discusses three types of consensus protocol with different time boundaries, including linear, finite, and fixed. Based on the main findings from the reviewed studies, future research recommendations are proposed.

scholarly journals Dynamic Analysis for VSG-Based Power Flow Control Applied to DG Systems

2021 ◽  
Author(s):  
THIAGO FIGUEIREDO DO NASCIMENTO ◽  
ANDRES ORTIZ SALAZAR
Keyword(s):  
Power Systems ◽  
Dynamic Analysis ◽  
Power Flow ◽  
Control Strategies ◽  
Renewable Energy Sources ◽  
Dynamic Performance ◽  
Synchronous Generator ◽  
Power Flow Control ◽  
Grid Impedance ◽  
Impedance Parameters

The integration of distributed generation (DG) systems based on renewable energy sources (RES) by using power converters is an emerging technology in modern power systems. Among the control strategies applied to this new configuration, the virtual synchronous generator (VSG) approach has proven to be an attractive solution due providing suitable dynamic performance. Thus, this paper presents a dynamic analysis of gridtied converters controlled by using VSG concept. This analysis is based on a dynamic model that describes the DG power flow transient characteristics. Based on this model, the grid impedance parameters variation effects on the VSG controllers dynamic performance are discussed. Simulation results are presented to evaluate the effectiveness of the theoretical analysis performed.

Power Flow Control in DC Microgrids Using an Integral Sliding Mode Control Approach

2021 ◽  
Author(s):  
Tabassum Haque ◽  
Tushar Kanti Roy ◽  
Farjana Faria ◽  
Most. Mahmuda Khatun ◽  
Tanmoy Sarkar ◽  
...  
Keyword(s):  
Sliding Mode Control ◽  
Flow Control ◽  
Power Flow ◽  
Sliding Mode ◽  
Power Flow Control ◽  
Integral Sliding Mode Control ◽  
Dc Microgrids ◽  
Integral Sliding Mode ◽  
Control Approach ◽  
Mode Control

Power flow control strategies in parallel hybrid electric vehicles

2016 ◽  
Vol 230 (14) ◽  
pp. 1925-1941 ◽  
Author(s):  
Guillermo Becerra ◽  
Luis Alvarez-Icaza ◽  
Alfonso Pantoja-Vázquez
Keyword(s):  
Flow Control ◽  
Power Flow ◽  
Hybrid Electric Vehicles ◽  
Dynamic Models ◽  
Combustion Engine ◽  
Control Strategies ◽  
Planetary Gear ◽  
Driving Cycle ◽  
Power Flow Control ◽  
Planetary Gear System

Two control strategies for power flow control in hybrid electric vehicles (HEVs) with parallel configuration and a planetary gear system as a power coupling device between the internal combustion engine and the electric machine are proposed in this paper. The aim of both strategies is to determine, for a given driving cycle, an appropriate mixture of the power provided by the two engines. Performance is measured not only in terms of fuel consumption; driving cycle tracking and preservation of energy in the bank of batteries are also considered. The first strategy, named the PGS strategy as it is designed around the planetary gear system, is heuristic, inspired by bang–bang optimal control formulations and has low computational load, while the second is an optimal one derived from Pontryagin’s minimum principle (PMP). It is shown that, under appropriate choice of the weighting parameters in the Hamiltonian of the PMP, both strategies give very similar results and, therefore, that the PGS strategy corresponds to a feasible solution to an optimization problem. Both strategies can be implemented in real time, however, the PGS strategy is easier to tune. Tuning of the strategies’ parameters is independent of the driving cycle. The power flow control laws are continuous and enforce the use of the internal combustion engine with the maximum possible efficiency. The strategies are tested with simulations of a power train of a hybrid diesel–electric bus subjected to the demands of four representative urban area driving cycles. Although optimization solutions are based on simplified dynamic models, simulation results are verified with more detailed dynamic models of the HEV main subsystems. This allows us to evaluate the accuracy of the results and to verify the hypothesis established in the optimization formulation. Simulation results indicate that both strategies attain good fuel consumption reduction levels.

Active Power Flow Control Between DC Microgrids

2019 ◽  
Vol 10 (5) ◽  
pp. 5712-5723 ◽  
Author(s):  
Umamaheswararao Vuyyuru ◽  
Suman Maiti ◽  
Chandan Chakraborty
Keyword(s):  
Flow Control ◽  
Power Flow ◽  
Active Power ◽  
Power Flow Control ◽  
Dc Microgrids ◽  
Active Power Flow

scholarly journals Power Flow Analysis of MMC-HVDC System with Margin Voltage and Voltage Droop Control Strategies

2020 ◽  
Author(s):  
Maxwel Da Silva Santos ◽  
Luciano Sales Barros ◽  
Rafael Lucas da Silva França ◽  
Flavio Bezerra Costa ◽  
Kai Strunz
Keyword(s):  
Power Flow ◽  
Control Strategies ◽  
Flow Analysis ◽  
Open Circuit ◽  
Droop Control ◽  
Power Flow Control ◽  
Hvdc System ◽  
High Voltage Direct Current ◽  
Modular Converter ◽  
The One

High voltage direct current (HVDC) systems are an alternative for transmission of energy with higher efficiency and lower electrical losses over long distances. HVDC systems have become more common with the evolution of power electronics, promoting the interest of research in power flow control techniques. The main objective of this paper is to perform evaluations of the power flow in a meshed multiterminal HVDC (MT-HVDC) system based on the multilevel modular converter (MMC). Two different control strategies were considered; The margin voltage; and the voltage droop strategies. Two assessment scenarios were considered: when an active power reference takes place in the system; and when a DC transmission line is open-circuit due to a failure in the DC grid. For both of these test cases, the system with the margin voltage control obtained a new balance of power flow with less oscillations in power andvoltage than the one with the voltage droop control.

scholarly journals Special Issue “Plug-In Hybrid Electric Vehicle (PHEV)”

2019 ◽  
Vol 9 (14) ◽  
pp. 2829
Author(s):  
Joeri Van Mierlo
Keyword(s):  
Electric Vehicles ◽  
Energy Efficient ◽  
Hybrid Electric Vehicle ◽  
Power Flow ◽  
Control Strategies ◽  
Special Issue ◽  
Power Flow Control ◽  
Power Electronics Converters ◽  
Hybrid Electric ◽  
Efficient Power

Climate change, urban air quality, and dependency on crude oil are important societal challenges. In the transportation sector especially, clean and energy-efficient technologies must be developed. Electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs) have gained a growing interest in the vehicle industry. Nowadays, the commercialization of EVs and PHEVs has been possible in different applications (i.e., light duty, medium duty, and heavy duty vehicles) thanks to the advances in energy-storage systems, power electronics converters (including DC/DC converters, DC/AC inverters, and battery charging systems), electric machines, and energy efficient power flow control strategies. This Special Issue is focused on the recent advances in electric vehicles and (plug-in) hybrid vehicles that address the new powertrain developments and go beyond the state-of-the-art (SOTA).

Sign in / Sign up

Export Citation Format

Share Document