Robust and economical placement of phasor measurement units in Indian Smart Grid

Resilience to large scale blackouts is one of the most important features of Smart grid. Fast and accurate real time monitoring throughout the grid is a fundamental requirement to make the power grid more resilient. Phasor measurement units may be deployed in the power grid to achieve this feature. Considering the economic constraints and observability requirement, a robust and economic PMU placement scheme should be devised. Optimal PMU placement has been researched extensively in recent years. The present work is based on the consideration of PMU channel capacity for placement of PMUs in a practical power network. The PMU placement scheme presented considers three different criteria namely number of PMU channels, cost of PMU, and robustness against failure of PMU. The paper presents some novel results in terms of selection of at least two different types of PMUs to be deployed for an economic placement scheme. Case studies have been performed on two different networks of Indian grid. However the methodology is generic and may be adopted for PMU placement in any practical system.