Power flow analysis of a networked microgrid in islanded mode

Mohd Nasir, Muhamad Shafiq (2020) Power flow analysis of a networked microgrid in islanded mode. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, a lot of microgrids have already been deployed to provide electricity. Most of the microgrids installed are related to islanded and grid-connected mode to support communities. Most Asian microgrids are used remotely to generate any renewable energy available for a reliable power system and Malaysia is one of the Asian countries that implement microgrids system. Sarawak Alternatives Rural Electrification Schemes (SARES) is a programme under Sarawak Energy that aims to provide 24-hour electricity supply to rural communities where it is not feasible for connection to the grid. Networked micro-grids have recently become a popular grid architecture innovation and can offer a range of benefits to local distribution networks and consumers, among which economic optimisation, stability, durability, and recovery. Therefore, the purpose of this research is to analyse the power flow of the networked microgrid in islanded mode in term of voltage profile, total power flow, and power losses. The objectives of this project are to model networked microgrid using Power World Simulator at Song and Nanga Merit consisting of Solar PV, battery storage, and diesel generator, to simulate the networked microgrid in islanded mode based on four case studies and analyse the power flow of the networked microgrid during interruption/power outage at the main grid. Simulation and analysis on the total power flow, power losses, voltage profile of the networked microgrid power system for Song and Nanga Merit rural region has been done in this project research. The results showed that the networked microgrid systems have the good reliability to accommodate the electricity need of the rural region in Sarawak. Therefore, this project has high potential to contribute with those who involved in the upgrading of the electrical system in rural areas either in peninsula or Sabah and Sarawak.

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