scholarly journals SSNN-Based Energy Management Strategy in Grid Connected System for Load Scheduling and Load Sharing

2022 ◽  
Vol 2022 ◽  
pp. 1-9
Author(s):  
Yuvaraja Teekaraman ◽  
K. A. Ramesh Kumar ◽  
Ramya Kuppusamy ◽  
Amruth Ramesh Thelkar
Keyword(s):  
Energy Management ◽  
Management Strategy ◽  
Storage System ◽  
Research Work ◽  
Load Sharing ◽  
Renewable Energy Resources ◽  
Energy Management Strategy ◽  
System A ◽  
Load Demand ◽  
Pv Generation

The proposed research work focused on energy management strategy (EMS) in a grid connected system working in islanding mode with the connected renewable energy resources and battery storage system. The energy management strategy developed provides a balancing operation at its output by utilizing perfect load sharing strategy. The EMS technique using smart superficial neural network (SSNN) is simulated, and numerical analyses are presented to validate the effectiveness of the centralized energy management strategy in a grid connected islanded system. A SSNN prediction model is unified to forecast the associated household load demand, PV generation system under various time horizons (including the disaster condition), EV availability, and status on EV section and distance. SSNN is one the most reliable forecasting methods in many of the applications. The developed system is also accounted for degradation battery model and its associated cost. The incorporation of energy management strategy (EMS) reduces the amount of energy drawn from the grid connected system when compared with the other optimized systems.

Optimal Energy Management Strategy and Novel Control Approach for DPGSs Under Unbalanced Grid Faults

2019 ◽  
Vol 28 (04) ◽  
pp. 1950057 ◽  
Author(s):  
Rabeh Abbassi ◽  
Sahbi Marrouchi ◽  
Salem Saidi ◽  
Abdelkader Abbassi ◽  
Souad Chebbi
Keyword(s):  
Energy Management ◽  
Management Strategy ◽  
Large Scale ◽  
Voltage Source ◽  
Power Electronic ◽  
Renewable Energy Resources ◽  
Reactive Control ◽  
Energy Management Strategy ◽  
Control Approach ◽  
Electronic Interface

Recently, the use of distributed power generation systems (DPGSs) based on renewable energy resources is increasingly being pursued as a supplement and a reliable alternative to the large traditional energy sources. For it, power-electronic interface technologies and control have also emerged as the most important key elements in the area of energy management and integrating DPGSs. The specification of a power-electronic interface is subject to several requirements that are related not only to the DPGS itself but also to its interactions with the power system especially where the utility grid is subject to events that can potentially lead to large-scale disturbances or even to its collapse if it operates near its capacity without fault margin. This study deals, first, with an optimized energy management strategy and, second, with a newly-conceived control strategy called symmetrical components control algorithm (SCCA) that was proposed for four-leg three-phase grid-connected voltage source inverter (VSI) used for DPGSs with wind–solar–battery sources. A mechanism of negative and zero sequences injection based on the control of ([Formula: see text]) current coordinates has been introduced. The performance of entire control system, to enhance the unbalanced fault ride-through capability of DPGSs, has been evaluated by time domain simulations with MATLAB/Simulink. Advantages of the combined active–reactive control ensuring both current and voltage controls have been achieved compared to the majority of already published strategies. The distinct features of the proposed SCCA strategy prove that it allows to meet the requirements for grid interconnection and the new stricter standards with respect to power quality, safe running, and islanding protection.

A coordinated control strategy for battery/supercapacitor hybrid energy storage system to eliminate unbalanced voltage in a standalone AC microgrid

2020 ◽  
Vol 1 (1) ◽  
pp. 3-23
Author(s):  
Yaxing Ren ◽  
Saqib Jamshed Rind ◽  
Lin Jiang
Keyword(s):  
Energy Management ◽  
Management Strategy ◽  
Reactive Power ◽  
Storage System ◽  
Energy Storage System ◽  
Energy Management Strategy ◽  
Content Type ◽  
Hybrid Energy ◽  
Hybrid Energy Storage ◽  
Bus Voltage

PurposeA standalone microgrid (MG) is able to use local renewable resources and reduce the loss in long distance transmission. But the single-phase device in a standalone MG can cause the voltage unbalance condition and additional power loss that reduces the cycle life of battery. This paper proposes an energy management strategy for the battery/supercapacitor (SC) hybrid energy storage system (HESS) to improve the transient performance of bus voltage under unbalanced load condition in a standalone AC microgrid (MG).Design/methodology/approachThe SC has high power density and much more cycling times than battery and thus to be controlled to absorb the transient and unbalanced active power as well as the reactive power under unbalanced condition. Under the proposed energy management design, the battery only needs to generate balanced power to balance the steady state power demand. The energy management strategy for battery/SC HESS in a standalone AC MG is validated in simulation study using PSCAD/EMTDC.FindingsThe results show that the energy management strategy of HESS maintains the bus voltage and eliminates the unbalance condition under single-phase load. In addition, with the SC to absorb the reactive power and unbalanced active power, the unnecessary power loss in battery is reduced with shown less accumulate depth of discharge and higher average efficiency.Originality/valueWith this technology, the service life of the HESS can be extended and the total cost can be reduced.

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