This article shows the change of pressure. Since the transmission power In remote areas of power station. Connect with In electrical network system is very small. Power quality By considering two case studies is Conditions of normal power At a distance far from the main power. Separate and independent state The results showed that in normal power conditions. To mitigate the volatility of electricity produced from PV generator with the appropriate size of a battery energy storage system.Presented in this article can alleviate voltage. And improve power quality To meet the standards set.Separate independent state Found that using the right size of BESS presented in this article can improve power quality. Produced by PV generator and can reduce the Diesel generator power during the time of the PV generator capacity sufficient to meet the energy requirements of the load. Support state power as well.
1. INTRODUCTION
Demand for clean energy Not cause global warming and alleviate the current energy crisis is growing PV generator is not only more environmentally friendly PV generator also allows the main power network. Power demand of the load can be increased. It helps to raise the voltage. Distribution systemFar away from the source. Conformity to the prescribed standards for power quality and reduce power loss in the system. Installed near the loads due to especially small-sized PV generator coordinates 1 MW to 20 MW (1), most of which make the connection. The distribution system or sub-transmission systems. However, fluctuations in the electric power produced by the PV generator has a high value varies depending on the weather conditions. Improved power quality is important.
Power distribution system Most of the traditional centralized model. Since there is a limited supply Mae-Sariang Micro-grid system at Mae Sariang. Mae Hong Son Province In this case as well. The distribution system at a distance of approximately 106 Km. Based power station. With low short circuit current 100-200 amps so the system is very weak. Make changes voltage when the load is high or supply changes abruptly. Send to affect power quality, and Mae-Sariang Micro-grid system is connected and the power produced by the PV generator power fluctuations. Produced at highCoordinates with 4 MW installed in the system close to the power station at Mae Sariang. Installed close to the load. Therefore, this article proposes to improve the quality of electric power. Produced by PV generator with a battery energy storage system. Along with determining the appropriate size of BESS with active PV generator.
CONCLUSION
This paper presents mitigating power quality problems because of the transmission power in remote areas of power station.
Attributed to the effects of fluctuations in the power supply of the PV generator is connected in the area with the BESS to improve the quality of power produced by PV generator.
With the size sufficient to improve power quality.
In both normal power conditions. Separate and independent state
The results showed that in normal power conditions. Coordinates the use of energy and power and 3,349.4 kW BESS at 191.525 kJ, respectively, in separate independent state. Of main power networkConsidering the capacity of the PV generator with sufficient power demand of the load.
To help reduce the power of the Diesel generator.
Coordinates the use of energy and power and 3,350.4 kW BESS is 350.7 kJ, respectively.
Able to maintain power quality at the connection in accordance with the criteria specified.
The separation conditions independent of the main power network.
It is necessary to use large coordinates BESS higher than in normal conditions. This is due to the change in conditions of high pressure over the normal power.
Typically separate independent state. Was only a short time only.
Therefore, consider installing BESS to cover both cases it is important.