Intelligent DC Microgrid With Smart Grid Communications: Control Strategy Consideration and Design

Wang, Baochao; Sechilariu, Manuela; Locment, Fabrice

doi:10.1109/tsg.2012.2217764

Cited by 227 publications

(88 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…P PV MPP_STC represents the PV generation limit, considering a PV array of 16 PV panels. C REF is the storage capacity, obtained based on the available storage system described in [2]. SOC 0 is the initial state of the charge and v * the desired voltage at the DC bus.…”

Section: Results Analysis and Discussionmentioning

confidence: 99%

“…This profile, detailed in Table 1, is based on the historical data of the building Pierre Guillaumat 2 from the Université de Technologie de Compiègne, France. The number of appliances and rated power were adapted to fit the physical restriction of an existing microgrid platform [2]. The designed scenario, where all appliances are fully controllable was selected to highlight the impact of considering demand-side management based on a load shedding approach in the microgrid system environment.…”

Section: Building Load Profile Samplementioning

confidence: 99%

“…This pressure for clean and environmentally-friendly energy, along with the liberalized electric market, and the demand of efficient, reliable, and diversified energy sources, have led to an increasing interest in renewable power generation [1]. The microgrid approach was designed as a bridge technology towards the smart grid system that intends to increase small-scale energy generation and minimize the energy cost [2].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimized Load Shedding Approach for Grid-Connected DC Microgrid Systems under Realistic Constraints

2016

Self Cite

View full text Add to dashboard Cite

Abstract:The microgrid system is an answer to the necessity of increasing renewable energy penetration and also works as a bridge for the future smart grid. Considering the microgrid system applied to commercial building equipped with photovoltaic sources, the usage of a DC microgrid architecture can improve the efficiency of the system, while ensuring robustness and reducing the overall energy cost. Given the power grid stress and the intermittency of the DC microgrid power production, backup power provision and load shedding operations may occur to stabilize the DC bus voltage. Based on the knapsack problem formulation, this paper presents a realistic optimization approach to shedding a building's appliances, considering the priority of each appliance, and also considering a minimum amount of load that must be attended. The problem is solved by mixed integer linear programming and the CPLEX solver. The proposed architecture ensures critical load supply and voltage stabilization through the real-time operation of the operational algorithm allowing the load shedding optimization approach to be applied without compromising the robustness of the system. The results obtained by simulation prove that the DC microgrid is able to supply the building power network by applying the load shedding optimization program to overcome, mainly, the renewable energy intermittency.

show abstract

Section: Results Analysis and Discussionmentioning

confidence: 99%

Section: Building Load Profile Samplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimized Load Shedding Approach for Grid-Connected DC Microgrid Systems under Realistic Constraints

2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus, controlling DC microgrids is relatively easy, especially regarding frequency security, which AC microgrids must guarantee strictly, while this kind of issue does not exist in DC microgrids. In addition, DC microgrids also show advantages of improving power quality and reducing line loss [19], [20]. An optimal EMS in a DC microgrid with multi-layer supervision control is presented in [21], and the optimization gives consideration to forecast PV power production and load power demand, while satisfying some constraints.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective energy management system for DC microgrids based on the maximum membership degree principle

Wang

Meng

et al. 2017

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

With the increasing quantity of DC electrical equipment, DC microgrids have been paid more and more attention. This paper proposes an approach to multi-objective optimisation of an energy management system (EMS) for a DC microgrid that includes a hybrid energy storage system (HESS). The operating and maintenance cost and the loss of power supply probability (LPSP) of the system are used as optimisation targets. The power flows of all distributed generators (DGs) in the DC microgrid during operating period are optimized. Based on the improved differential evolution (DE) algorithm, and by using the multi-objective non-dominated sorting method and the maximum membership degree principle (MMDP) of fuzzy control, the overall satisfaction degree of Pareto solutions to power flow optimization can be obtained. Simulation results verify the effectiveness of the proposed EMS optimization scheme, which is able to achieve an effective trade-off between the economy and the reliability of microgrid operation.

show abstract

“…Integrating PV systems with the DC grid will reduce the number of power conversion stages and thus increase overall conversion efficiency. The efficiency of integrated DC loads, such as electric vehicle batteries, to the grid will also be improved [6], [7]. Different methods can be used to integrate PV sources with the DC grid.…”

Section: Introductionmentioning

confidence: 99%

FPGA-based Centralized Controller for Multiple PV Generators Tied to the DC Bus

Ahmed¹,

Ganeshkumar²,

Park³

et al. 2014

Journal of Power Electronics

View full text Add to dashboard Cite

The integration of photovoltaic (PV) energy sources into DC grid has gained considerable attention because of its enhanced conversion efficiency with reduced number of power conversion stages. During the integration process, a local control unit is normally included with every power conversion stage of the PV source to accomplish the process of maximum power point tracking. A centralized monitoring and supervisory control unit is required for monitoring, power management, and protection of the entire system. Therefore, we propose a field-programmable gate array (FPGA) based centralized control unit that integrates all local controllers with the centralized monitoring unit. The main focus of this study is on the process of integrating many local control units into a single central unit. In this paper, we present design and optimization procedures for the hardware implementation of FPGA architecture. Furthermore, we propose a transient analysis and control design methodology with consideration of the nonlinear characteristics of the PV source. Hardware experiment results verify the efficiency of the central control unit and controller design.

show abstract

Intelligent DC Microgrid With Smart Grid Communications: Control Strategy Consideration and Design

Cited by 227 publications

References 29 publications

Optimized Load Shedding Approach for Grid-Connected DC Microgrid Systems under Realistic Constraints

Optimized Load Shedding Approach for Grid-Connected DC Microgrid Systems under Realistic Constraints

Multi-objective energy management system for DC microgrids based on the maximum membership degree principle

FPGA-based Centralized Controller for Multiple PV Generators Tied to the DC Bus

Contact Info

Product

Resources

About