Improvement of power quality with integration of solar PV and battery storage system based micro grid operation

Author(s):  
W J Praiselin ◽  
J. Belwin Edward
2013 ◽  
Vol 694-697 ◽  
pp. 838-841 ◽  
Author(s):  
Li Xia Lv ◽  
Yue Xia Jin

In order to solve the problems which are caused by wind power and solar power on-grid, such as power quality, stability, reliability and so on, this paper proposes wind and solar micro-grid including energy storage system(ESS). The micro-grid uses two buses: AC bus and DC bus. Micro-source current is connected to the grid with the same inverter, which can reduce the micro-grid control difficulties. The energy storage system connected to the grid through the inverter could directly absorb energy from the grid. The DC side of the energy storage system using bidirectional DC / DC converter, which can keep the DC side of the battery storage stable.


Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2727 ◽  
Author(s):  
Sofiane Kichou ◽  
Nikolaos Skandalos ◽  
Petr Wolf

This paper reports on the electrical performance of two bloc-of-flats buildings located in Prague, Czech Republic. Measured data of electrical consumption were used to investigate the effect of photovoltaic (PV) and battery energy storage system (BESS) systems on the overlap between generation and demand. Different PV array configurations and battery storage capacities were considered. Detailed solar analysis was carried out to analyze the solar potential of the building and to assess the PV electricity production. The evaluation of the building performance was done through MATLAB simulations based on one-year monitored data. The simulation results were used for the calculation of the load matching indices: namely, the self-consumption and self-sufficiency. It was found that optimized array tilt and orientation angles can effectively contribute to a better adjustment between electricity demand and solar PV generation. The addition of a façade PV system increases significantly the PV generation and thus the load matching during winter months. Mismatch is further reduced by using the energy flexibility provided by the BESS. Depending on the PV size and BESS capacity, the self-consumption and the self-sufficiency of the building could increase from 55% to 100% and from 24% up to 68%, respectively.


Author(s):  
V L Vennela and Dr. S N V Ganesh

This paper focus on specially designed ANFIS based Power Quality Conditioner for Micro Grid applications. Three leg inverter coupled with solar PV with MPPT used as Compensator can be used for distinct DGs in the micro grid for power quality improvement of the entire system. Optimum control can be achieved to avoid detraction for voltage, current and Power flowing between Grid and DG. The Power Quality conditioner and DG inverter have dual use for this particular purpose. Primarily used as power converter for injecting power created from DG to Grid, secondly performed as parallel Active Power Filter for compensating harmonics, unbalanced voltage, current, active and reactive power demand for the balance and unbalance burden with in the Grid and neutral conductors. This paper is extended with ANN Controller for better improvement of Power Quality. The above mentioned task extensively simulated under MATLAB/Simulink platform revels that soon after compensation the THD


Electronics ◽  
2018 ◽  
Vol 7 (9) ◽  
pp. 177 ◽  
Author(s):  
Sarvar Nengroo ◽  
Muhammad Kamran ◽  
Muhammad Ali ◽  
Do-Hyun Kim ◽  
Min-Soo Kim ◽  
...  

The increasing world human population has given rise to the current energy crisis and impending global warming. To meet the international environmental obligations, alternative technological advances have been made to harvest clean and renewable energy. The solar photovoltaics (PV) system is a relatively new concept of clean technology that can be employed as an autonomous power source for a range of off-grid applications. In this study, the dual battery storage system is coupled with a solar PV system and a low voltage grid, benefitting from the feed-in tariff (FIT) policy. The main outcomes of this study are: (I) A novel dual battery storage system for the optimal use of the PV system/energy is proposed; (II) The problem is formulated in the form of a mathematical model, and a cost function is devised for effective cost calculation; (III) An optimal cost analysis is presented for the effective use of PV energy; (IV) real-time data of a solar PV taken from the owner and the demand profile collected from the user is applied to the proposed approach, with United Kingdom (UK) tariff incentives. This system works in a loop by charging one system from the solar PV for one day, and discharging the other system. This model gives certainty that power is exported to the grid when the solar PV generates an excess amount; batteries are utilized during the peak hours, and power is purchased when the demand is not met by the batteries, or when the demand is higher than the generation. This study examined the economic knowledge of solar PV and battery storage systems by considering the FIT incentives.


Author(s):  
Kongathi Sivaram , P Ankineedu Prasad

This paper focus on specially designed ANFIS based Power Quality Conditioner for Micro Grid applications. Three leg inverter coupled with solar PV with MPPT used as Compensator can be used for distinct DGs in the micro grid for power quality improvement of the entire system. Optimum control can be achieved to avoid detraction for voltage, current and Power flowing between Grid and DG. The Power Quality conditioner and DG inverter have dual use for this particular purpose. Primarily used as power converter for injecting power created from DG to Grid, secondly performed as parallel Active Power Filter for compensating harmonics, unbalanced voltage, current, active and reactive power demand for the balance and unbalance burden with in the Grid and neutral conductors. This paper is extended with ANFIS Controller for better improvement of Power Quality. The above mentioned task extensively simulated under MATLAB/Simulink platform revels that soon after compensation the THD.


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