• Vipanjit Kaur
• Sonia Grover

For power system operators, a load flow solution is a preordained tool for planning and operation power system. There are numerous methods available for the solution of load flow but Newton Raphson is used mainly among various methods of load flow solution techniques. Newton Raphson method for load flow is based on the assumption that out of the available generator buses, one bus will be kept out of operation and will be used in case of failure and power losses. In the Newton raphson iteration process this slack bus is not included and all the losses calculated at the end of an iteration are shifted to this slack bus because the system without losses is almost impossible. But in the case of Micro-grid system, which is a combination of mini power plants which include solar panel power generation, wind power generation, all other. In those small capacity power plants, there is no possibility of a separate bus which can take the burden of the failure and losses in the system. So there is a possible modified Newton Raphson method for having not any slack bus or including all the generator buses within the iteration. This method can be even applied to the large capacity power plant. This paper is a review of the change in Newton Rap son Method and compare result analysis of simple Newton Raphson Method and Modified Newton Raphson Method which has the addition of slack bus.

Slack bus, Micro-grid, Load flow.

"INCLUDING SLACK BUS IN NEWTON RAPHSON METHOD FOR LOAD FLOW SOLUTION: A REVIEW", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.142-147, May 2019, Available :http://www.jetir.org/papers/JETIRCW06029.pdf

"INCLUDING SLACK BUS IN NEWTON RAPHSON METHOD FOR LOAD FLOW SOLUTION: A REVIEW", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp142-147, May 2019, Available at : http://www.jetir.org/papers/JETIRCW06029.pdf