Abstract
In order to meet with the increasing demand of electrical energy and wide spread of energy consumers in an area, the decentralized power generation (DPG) is becoming more popular. In DPG mostly the renewable energy sources are used. These renewable energy sources acts as the small grids integrated into the main power system. Now for management, optimized operation and stability of the existing system the power flow analysis must be done at the connecting point of these grids. In order to perform load flow analysis the system analysis model is needed. In general system's analysis, whenever the system structure changes we have to change the analysis model. As we know those DPG units are ‘in' and ‘out' of the system frequently, so this results in the change of the system structure. So every time the system structure is change we have to recreate the analysis model therefore by using the classical load flow analysis method, load flow calculation become complex. This paper introduces a new technique of parameter injection at the joining points of grid to reduce the load flow analysis complexity. There is no need to recreate the analysis model again and again whenever the system structure changes.
Highlights
Electricity consumption is increasing day by day. It results in the expansion of energy market, so new energy sources which are mainly the renewable energy sources are rapidly integrating into the existing power system to meet the energy demand
In decentralized energy generation bulk power is generated by incorporating many smaller units near to the load centre rather generating power at a centralized point, which is usually far away from the load centre
This paper proposed a technique of parameter injection at the joining point of the grids, so whenever system structure changes, we do not have to recreate the admittance matrix [5, 6]
Summary
In decentralized energy generation bulk power is generated by incorporating many smaller units near to the load centre rather generating power at a centralized point, which is usually far away from the load centre. These decentralized units are mainly the renewable energy sources. Whenever the new grid enters the existing matrix system the admittance matrix must be recreated as the system structure is changed. This results the complexity in the load flow calculation. This paper proposed a technique of parameter injection at the joining point of the grids, so whenever system structure changes, we do not have to recreate the admittance matrix [5, 6]
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